---

import { IChartApi, ISeriesApi, SeriesType } from 'lightweight-charts';

import { DOMObject, DOMObjectParams } from '@core/DOMObject';
import { ISeriesDrawing } from '@core/Drawings/common';
import { DrawingSnapshotItem } from '@core/DrawingsManager';
import { Hotkeys, Keys } from '@core/Hotkeys';
import { DrawingsNames } from '@src/constants';
import { SeriesStrategies } from '@src/modules/series-strategies/SeriesFactory';
import { SettingsTab, SettingsValues } from '@src/types/settings';

type IDrawing = DOMObject;

interface DrawingParams extends DOMObjectParams {
  drawingName: DrawingsNames;
  lwcChart: IChartApi;
  mainSeries: SeriesStrategies;
  onDelete: (id: string) => void;
  construct: (chart: IChartApi, series: ISeriesApi<SeriesType>) => ISeriesDrawing;
  hotkeys: Hotkeys;
  setCopyPasteBuffer: (copiedObject: DrawingSnapshotItem) => void;
  resetActiveTool: () => void;
}

export class Drawing extends DOMObject implements IDrawing {
  private lwcDrawing: ISeriesDrawing;
  private mainSeries: SeriesStrategies;
  private drawingName: DrawingsNames;
  private hotkeys: Hotkeys;

  private escapeUnregisterHash: string | null = null;
  private deleteUnregisterHash: string | null = null;
  private copyUnregisterHash: string | null = null;

  constructor({
    lwcChart,
    name,
    mainSeries,
    drawingName,
    id,
    onDelete,
    zIndex,
    moveUp,
    moveDown,
    construct,
    paneId,
    hotkeys,
    setCopyPasteBuffer,
    resetActiveTool,
  }: DrawingParams) {
    super({ id, name, zIndex, onDelete, moveUp, moveDown, paneId });
    this.hotkeys = hotkeys;
    this.lwcDrawing = construct(lwcChart, mainSeries);
    this.onDelete = onDelete;
    this.escapeUnregisterHash = hotkeys.register({
      keys: [Keys.escape],
      callback: () => {
        this.delete();
        resetActiveTool();
      },
    });

    this.lwcDrawing.subscribeIsSelected((isSelected) => {
      if (isSelected) {
        this.deleteUnregisterHash = hotkeys.register({
          keys: [Keys.delete],
          callback: () => {
            this.delete();
          },
        });
        this.copyUnregisterHash = hotkeys.register({
          keys: [Keys.control, Keys.c],
          callback: () => {
            if (!this.isCreationPending()) {
              const copiedObject = {
                id: this.id,
                drawingName: this.getDrawingName(),
                state: this.getState(),
              };
              setCopyPasteBuffer(copiedObject);
            }
          },
        });
      } else {
        hotkeys.unregister({
          keys: [Keys.delete],
          hash: this.deleteUnregisterHash,
        });
        hotkeys.unregister({
          keys: [Keys.control, Keys.c],
          hash: this.copyUnregisterHash,
        });
      }
    });
    this.mainSeries = mainSeries;
    this.drawingName = drawingName;

    this.afterCreation(() => {
      hotkeys.unregister({
        keys: [Keys.escape],
        hash: this.escapeUnregisterHash,
      });
    });
  }

  public delete() {
    this.destroy();
    super.delete();
  }

  public getDrawingName(): DrawingsNames {
    return this.drawingName;
  }

  public getLwcDrawing() {
    return this.lwcDrawing;
  }

  public show() {
    this.lwcDrawing.show();
    super.show();
  }

  public hide() {
    this.lwcDrawing.hide();
    super.hide();
  }

  public rebind = (nextMainSeries: SeriesStrategies) => {
    this.lwcDrawing.rebind(nextMainSeries);
    this.mainSeries = nextMainSeries;
  };

  public isCreationPending(): boolean {
    return this.lwcDrawing.isCreationPending();
  }

  public async waitForCreation(): Promise<void> {
    return this.lwcDrawing.waitTillReady();
  }

  public shouldShowInObjectTree(): boolean {
    return this.lwcDrawing.shouldShowInObjectTree();
  }

  public getState(): unknown {
    return this.lwcDrawing.getState();
  }

  public setState(state: unknown): void {
    this.lwcDrawing.setState(state);
  }

  public getSettings(): SettingsValues {
    return this.lwcDrawing.getSettings();
  }

  public updateSettings(settings: SettingsValues): void {
    this.lwcDrawing.updateSettings(settings);
  }

  public getSettingsTabs(): SettingsTab[] {
    return this.lwcDrawing.getSettingsTabs();
  }

  public hasSettings(): boolean {
    return this.getSettingsTabs().some((tab) => tab.fields.length > 0);
  }

  public destroy() {
    this.hotkeys.unregister({
      keys: [Keys.delete],
      hash: this.deleteUnregisterHash,
    });
    this.hotkeys.unregister({
      keys: [Keys.escape],
      hash: this.escapeUnregisterHash,
    });
    this.hotkeys.unregister({
      keys: [Keys.control, Keys.c],
      hash: this.copyUnregisterHash,
    });
    this.mainSeries.detachPrimitive(this.lwcDrawing);
    this.lwcDrawing.destroy();
  }

  private async afterCreation(cb: () => void) {
    await this.lwcDrawing.waitTillReady();
    cb();
  }
}



import { BehaviorSubject } from 'rxjs';

import { DOMObjectSnapshot, IndicatorSnapshot, ISerializable } from '@src/types/snapshot';

enum DOMObjectType {
  Drawing = 'Drawing',
  Indicator = 'Indicator',
}

export interface IDOMObject {
  id: string;
  hidden: BehaviorSubject<boolean>;
  zIndex: number;
  type: DOMObjectType;
  name: string;
  delete(): void;
  hide(): void;
  show(): void;
  lastUpdated(): void;
  moveUp(): void;
  moveDown(): void;
  setZIndex(next: number): void;
  shouldShowInObjectTree(): boolean;
}

export interface DOMObjectParams {
  id: string;
  paneId: number; // todo: implement for drawings
  zIndex: number;
  onDelete: (id: string) => void;
  moveUp: (id: string) => void;
  moveDown: (id: string) => void;
  name?: string;
}

export class DOMObject implements IDOMObject, ISerializable<DOMObjectSnapshot> {
  public readonly id: string;
  public name: string;
  public zIndex: number;
  public hidden = new BehaviorSubject(false);
  public moveUp: () => void;
  public moveDown: () => void;
  public paneId: number;
  protected onDelete: (id: string) => void;

  // eslint-disable-next-line @typescript-eslint/ban-ts-comment
  // @ts-ignore
  type: DOMObjectType;

  constructor({ id, name, zIndex, onDelete, moveUp, moveDown, paneId }: DOMObjectParams) {
    this.id = id;
    this.name = name ?? id;
    this.zIndex = zIndex;
    this.paneId = paneId;
    this.onDelete = onDelete;
    this.moveUp = () => moveUp(this.id);
    this.moveDown = () => moveDown(this.id);
  }

  delete(): void {
    this.onDelete(this.id);
  }

  hide(): void {
    this.hidden.next(true);
  }

  show(): void {
    this.hidden.next(false);
  }

  lastUpdated(): void {}

  setZIndex(next: number): void {
    this.zIndex = next;
  }

  shouldShowInObjectTree(): boolean {
    return true;
  }

  public getSnapshot(): DOMObjectSnapshot {
    return {
      id: this.id,
      name: this.name,
      zIndex: this.zIndex,
      hidden: this.hidden.value,
      paneId: this.paneId,
    };
  }
}


import { BehaviorSubject, map, Observable } from 'rxjs';

import { DOM } from '@components/DOM';
import { IDOMObject } from '@core/DOMObject';
import { ModalRenderer } from '@core/ModalRenderer';
import { t } from '@src/translations';

interface DOMModelParams {
  modalRenderer: ModalRenderer;
}

/**
 * Абстракция над библиотекой для построения графиков
 */
export class DOMModel {
  // ∈ symbol&pane
  private modalRenderer: ModalRenderer;
  private lastZIndex = 0;

  private entities: BehaviorSubject<IDOMObject[]> = new BehaviorSubject<IDOMObject[]>([]); // drawings/indicators/series
  // private panes: Panes[]; // todo: пока что на каждый пейн будет один objectTree

  constructor({ modalRenderer }: DOMModelParams) {
    this.modalRenderer = modalRenderer;
  }

  public removeEntity = <T extends IDOMObject>(entity: T): void => {
    this.entities.next(this.entities.value.filter((d) => d.id !== entity.id));
  };

  public setEntity = <T extends IDOMObject>(
    cb: (zIndex: number, moveUp: (id: string) => void, moveDown: (id: string) => void) => T,
  ): T => {
    const entity = cb(this.lastZIndex++, this.moveUp, this.moveDown);

    this.entities.next([...this.entities.value, entity].sort((a, b) => a.zIndex - b.zIndex));

    return entity;
  };

  private moveUp = (id: string): void => {
    const entities = this.entities.value;

    const curr = entities.find((e) => e.id === id);

    if (!curr) {
      return;
    }

    const next = entities.find((e) => e.zIndex === curr.zIndex + 1);

    const ent = entities.filter((e) => e.id !== id && e.zIndex !== curr.zIndex + 1);

    if (!next) {
      return;
    }
    const [left, right] = [curr.zIndex, next.zIndex];

    curr.setZIndex(right);
    next.setZIndex(left);

    this.entities.next([...ent, curr, next].sort((a, b) => a.zIndex - b.zIndex));
  };

  private moveDown = (id: string): void => {
    const entities = this.entities.value;

    const curr = entities.find((e) => e.id === id);

    if (!curr) {
      return;
    }

    const prev = entities.find((e) => e.zIndex === curr.zIndex - 1);

    const ent = entities.filter((e) => e.id !== id && e.zIndex !== curr.zIndex - 1);

    if (!prev) {
      return;
    }

    const [left, right] = [curr.zIndex, prev.zIndex];

    curr.setZIndex(right);
    prev.setZIndex(left);

    this.entities.next([...ent, curr, prev].sort((a, b) => a.zIndex - b.zIndex));
  };

  public getEntities = (): Observable<IDOMObject[]> => {
    return this.entities.pipe(map((entities) => entities.filter((entity) => entity.shouldShowInObjectTree())));
  };

  public refreshEntities = (): void => {
    this.entities.next([...this.entities.value]);
  };

  public toggleDOM = () => {
    this.modalRenderer.renderComponent(<DOM elementsObs={this.getEntities()} />, {
      title: t('DOM tree'),
      onSave: () => console.warn('dom state saved'),
      acceptLabel: '',
      rejectLabel: '',
    });
  };

  public destroy(): void {
    // todo implement
  }
}


import { IChartApi, ISeriesApi, SeriesType } from 'lightweight-charts';
import { BehaviorSubject, Observable, Subscription } from 'rxjs';

import { EventManager } from '@core';
import { DOMModel } from '@core/DOMModel';
import { Drawing } from '@core/Drawings';
import { Hotkeys, Keys } from '@core/Hotkeys';

import { EntitySettingsModal } from '@src/components/EntitySettingsModal';
import { drawingLabelById, drawingsMap, DrawingsNames } from '@src/constants';
import { ModalRenderer } from '@src/core/ModalRenderer';
import { SeriesStrategies } from '@src/modules/series-strategies/SeriesFactory';
import { ActiveDrawingTool } from '@src/types';

interface DrawingsManagerParams {
  eventManager: EventManager;
  mainSeries$: Observable<SeriesStrategies | null>;
  lwcChart: IChartApi;
  DOM: DOMModel;
  container: HTMLElement;
  modalRenderer: ModalRenderer;
  paneId: number;
  hotkeys: Hotkeys;
}

export interface DrawingSnapshotItem {
  id: string;
  drawingName: DrawingsNames;
  state: unknown;
}

interface CreateDrawingOptions {
  id?: string;
  state?: unknown;
  shouldUpdateDrawingsList?: boolean;
}

export type DrawingsManagerSnapshot = DrawingSnapshotItem[];

export class DrawingsManager {
  private eventManager: EventManager;
  private lwcChart: IChartApi;
  private DOM: DOMModel;
  private container: HTMLElement;
  private modalRenderer: ModalRenderer;

  private mainSeries: SeriesStrategies | null = null;
  private subscriptions = new Subscription();
  private drawings$ = new BehaviorSubject<Drawing[]>([]);
  private activeTool$ = new BehaviorSubject<ActiveDrawingTool>('crosshair');
  private endlessMode$ = new BehaviorSubject(false);
  private recreateScheduled = false;
  private pendingSnapshot: DrawingsManagerSnapshot | null = null;
  private paneId: number;

  private hotkeys: Hotkeys;
  private copyPasteBuffer: DrawingSnapshotItem | null = null;
  private escapeUnregisterHash: string | null = null;

  constructor({
    eventManager,
    mainSeries$,
    lwcChart,
    DOM,
    container,
    modalRenderer,
    paneId,
    hotkeys,
  }: DrawingsManagerParams) {
    this.DOM = DOM;
    this.eventManager = eventManager;
    this.paneId = paneId;
    this.lwcChart = lwcChart;
    this.container = container;
    this.modalRenderer = modalRenderer;
    this.hotkeys = hotkeys;

    this.subscriptions.add(
      mainSeries$.subscribe((series) => {
        if (!series) {
          return;
        }

        this.mainSeries = series;
        this.drawings$.value.forEach((drawing) => drawing.rebind(series));

        if (this.pendingSnapshot) {
          const snapshot = this.pendingSnapshot;
          this.pendingSnapshot = null;
          this.setSnapshot(snapshot);
        }
      }),
    );

    window.addEventListener('pointerup', this.handlePointerUp);
    this.container.addEventListener('click', this.handleClick);
    this.container.addEventListener('pointerdown', this.handlePointerDown);
    // todo: implement ctrl+v
    // hotkeys.register({
    //   keys: [Keys.control, Keys.v],
    //   callback: () => {
    //     const bufferWithAppliedPosition = {
    //       ...this.copyPasteBuffer,
    //       state: {
    //         ...this.copyPasteBuffer?.state,
    //         startAnchor: {
    //           price: 73.36210252637723,
    //           time: 1783679170
    //         }
    //       }
    //     }
    //
    //     this.setSnapshot([
    //       ...this.getSnapshot(),
    //       bufferWithAppliedPosition
    //     ])
    //     // hotkeys.unregister({ // todo: unregister all else ctrl+c's
    //     //   keys: [Keys.control, Keys.c]
    //     // })
    //   }
    // })
  }

  private handlePointerDown = (): void => {
    this.DOM.refreshEntities();
  };

  private handlePointerUp = (): void => {
    this.DOM.refreshEntities();
    this.updateActiveTool();
  };

  private handleClick = (): void => {
    this.DOM.refreshEntities();
    this.updateActiveTool();
  };

  private updateActiveTool = (): void => {
    const hasPendingDrawing = this.drawings$.value.some((drawing) => drawing.isCreationPending());

    if (hasPendingDrawing) {
      return;
    }

    const activeTool = this.activeTool$.value;
    const isSingleInstanceTool = activeTool !== 'crosshair' && drawingsMap[activeTool]?.singleInstance;

    if (activeTool !== 'crosshair' && this.endlessMode$.value && !isSingleInstanceTool) {
      if (this.recreateScheduled) {
        return;
      }

      this.recreateScheduled = true;

      queueMicrotask(() => {
        this.recreateScheduled = false;

        const currentTool = this.activeTool$.value;
        const hasPendingAfterTick = this.drawings$.value.some((drawing) => drawing.isCreationPending());

        if (currentTool === 'crosshair') {
          return;
        }

        if (!this.endlessMode$.value) {
          return;
        }

        if (drawingsMap[currentTool]?.singleInstance) {
          return;
        }

        if (hasPendingAfterTick) {
          return;
        }

        this.createDrawing(currentTool);
      });

      return;
    }

    this.activeTool$.next('crosshair');
  };

  private removeDrawing = (id: string): void => {
    const drawing = this.drawings$.value.find((item) => item.id === id);

    if (!drawing) {
      return;
    }

    this.removeDrawings([drawing]);
  };

  private removeDrawingsByName(name: DrawingsNames, shouldUpdateTool = true): void {
    const drawingsToRemove = this.drawings$.value.filter((drawing) => drawing.getDrawingName() === name);

    this.removeDrawings(drawingsToRemove, shouldUpdateTool);
  }

  private removePendingDrawings(shouldUpdateTool = true): void {
    const drawingsToRemove = this.drawings$.value.filter((drawing) => drawing.isCreationPending());

    this.removeDrawings(drawingsToRemove, shouldUpdateTool);
  }

  private removeDrawings(drawingsToRemove: Drawing[], shouldUpdateTool = true): void {
    if (!drawingsToRemove.length) {
      return;
    }

    drawingsToRemove.forEach((drawing) => {
      drawing.destroy();
      this.DOM.removeEntity(drawing);
    });

    this.drawings$.next(this.drawings$.value.filter((drawing) => !drawingsToRemove.includes(drawing)));

    if (shouldUpdateTool) {
      this.updateActiveTool();
    }

    this.DOM.refreshEntities();
  }

  public addDrawingForce = (name: DrawingsNames): Promise<void> => {
    this.removePendingDrawings(false);

    if (drawingsMap[name].singleInstance) {
      this.removeDrawingsByName(name, false);
    }

    this.activeTool$.next(name);
    const drawing = this.createDrawing(name);
    this.DOM.refreshEntities();

    return drawing.waitForCreation();
  };

  private createDrawing(name: DrawingsNames, options: CreateDrawingOptions = {}): Drawing {
    if (!this.mainSeries) {
      throw new Error('[Drawings] main series is not defined');
    }

    const { id, state, shouldUpdateDrawingsList = true } = options;

    const config = drawingsMap[name];
    const drawingId = id ?? crypto.randomUUID();

    let createdDrawing: Drawing | null = null;

    const construct = (chart: IChartApi, series: ISeriesApi<SeriesType>) =>
      config.construct({
        chart,
        series,
        eventManager: this.eventManager,
        container: this.container,
        removeSelf: () => this.removeDrawing(drawingId),
        openSettings: () => {
          if (createdDrawing) {
            this.openSettings(createdDrawing);
          }
        },
      });

    const drawingFactory = (zIndex: number, moveUp: (id: string) => void, moveDown: (id: string) => void) =>
      new Drawing({
        lwcChart: this.lwcChart,
        mainSeries: this.mainSeries as SeriesStrategies,
        id: drawingId,
        drawingName: name,
        name: drawingLabelById()[name],
        onDelete: this.removeDrawing,
        zIndex,
        moveDown,
        moveUp,
        construct,
        paneId: this.paneId,
        hotkeys: this.hotkeys,
        setCopyPasteBuffer: (copyPasteBuffer) => {
          this.copyPasteBuffer = copyPasteBuffer;
        },
        resetActiveTool: () => {
          this.activeTool$.next('crosshair');
        },
      });

    const entity = this.DOM.setEntity<Drawing>(drawingFactory);
    createdDrawing = entity;

    if (state !== undefined) {
      entity.setState(state);
    }

    if (shouldUpdateDrawingsList) {
      this.drawings$.next([...this.drawings$.value, entity]);
    }

    return entity;
  }

  public getSnapshot(): DrawingsManagerSnapshot {
    return this.drawings$.value
      .filter((drawing) => !drawing.isCreationPending())
      .map((drawing) => ({
        id: drawing.id,
        drawingName: drawing.getDrawingName(),
        state: drawing.getState(),
      }));
  }

  public setSnapshot(snapshot: DrawingsManagerSnapshot): void {
    if (!Array.isArray(snapshot)) {
      return;
    }

    if (!this.mainSeries) {
      this.pendingSnapshot = snapshot;
      return;
    }

    this.removeDrawings(this.drawings$.value, false);

    const restoredDrawings = snapshot.reduce<Drawing[]>((drawings, item) => {
      if (!drawingsMap[item.drawingName]) {
        return drawings;
      }

      drawings.push(
        this.createDrawing(item.drawingName, { id: item.id, state: item.state, shouldUpdateDrawingsList: false }),
      );

      return drawings;
    }, []);

    this.drawings$.next(restoredDrawings);
    this.activeTool$.next('crosshair');
    this.DOM.refreshEntities();
  }

  public setEndlessDrawingMode = (value: boolean): void => {
    if (value) {
      this.escapeUnregisterHash = this.hotkeys.register({
        keys: [Keys.escape],
        callback: () => {
          this.setEndlessDrawingMode(false);
        },
      });
    } else {
      this.hotkeys.unregister({
        keys: [Keys.escape],
        hash: this.escapeUnregisterHash,
      });
    }
    this.endlessMode$.next(value);
  };

  public isEndlessDrawingsMode(): Observable<boolean> {
    return this.endlessMode$.asObservable();
  }

  public getActiveTool(): Observable<ActiveDrawingTool> {
    return this.activeTool$.asObservable();
  }

  public activateCrosshair(): void {
    this.removePendingDrawings(false);
    this.activeTool$.next('crosshair');
    this.DOM.refreshEntities();
  }

  public entities(): Observable<Drawing[]> {
    return this.drawings$.asObservable();
  }

  private openSettings = (drawing: Drawing) => {
    const tabs = drawing.getSettingsTabs();

    if (!tabs.length || tabs.every((tab) => tab.fields.length === 0)) {
      return;
    }

    let settings = drawing.getSettings();

    this.modalRenderer.renderComponent(
      <EntitySettingsModal
        tabs={tabs}
        values={settings}
        onChange={(nextSettings) => {
          settings = nextSettings;
        }}
        initialTabKey={tabs[0]?.key}
      />,
      {
        size: 'sm',
        title: drawing.name,
        onSave: () => drawing.updateSettings(settings),
      },
    );
  };

  public getDrawings(): Drawing[] {
    return this.drawings$.value;
  }

  public hideAll(): void {
    this.drawings$.value.forEach((drawing) => drawing.hide());
    this.DOM.refreshEntities();
  }

  public destroy(): void {
    this.hotkeys.unregister({
      keys: [Keys.escape],
      hash: this.escapeUnregisterHash,
    });
    window.removeEventListener('pointerup', this.handlePointerUp);
    this.container.removeEventListener('click', this.handleClick);
    this.container.removeEventListener('pointerdown', this.handlePointerDown);

    this.drawings$.value.forEach((drawing) => drawing.destroy());

    this.subscriptions.unsubscribe();
    this.drawings$.complete();
    this.activeTool$.complete();
    this.endlessMode$.complete();
  }
}


import { CandlestickSeriesStrategy, LineSeriesStrategy } from '@core';

import { BaseSeriesParams } from '@core/Series/BaseSeries';
import { BarSeriesStrategy } from '@src/core/Series/BarSeriesStrategy';

import { HistogramSeriesStrategy } from '@src/core/Series/HistogramSeriesStrategy';
import { ISeries } from '@src/modules/series-strategies/ISeries';
import { ChartSeriesType } from '@src/types';

export type SeriesStrategies =
  | CandlestickSeriesStrategy
  | LineSeriesStrategy
  | HistogramSeriesStrategy
  | BarSeriesStrategy
  | ISeries<'Baseline'>
  | ISeries<'Area'>
  | ISeries<'Custom'>;
/**
x * Фабрика для создания стратегий серий
 * Реализует паттерн Factory для создания нужной стратегии по типу графика
 */

export class SeriesFactory {
  static create(
    type: ChartSeriesType,
  ):
    | ((params: BaseSeriesParams<'Candlestick'>) => CandlestickSeriesStrategy)
    | ((params: BaseSeriesParams<'Histogram'>) => HistogramSeriesStrategy)
    | ((params: BaseSeriesParams<'Line'>) => LineSeriesStrategy)
    | ((params: BaseSeriesParams<'Bar'>) => BarSeriesStrategy) {
    if (type === 'Candlestick') {
      return ((params) => new CandlestickSeriesStrategy(params)) as (
        params: BaseSeriesParams<'Candlestick'>,
      ) => CandlestickSeriesStrategy;
    }
    if (type === 'Histogram') {
      return ((params) => new HistogramSeriesStrategy(params)) as (
        params: BaseSeriesParams<'Histogram'>,
      ) => HistogramSeriesStrategy;
    }
    if (type === 'Line') {
      return ((params) => new LineSeriesStrategy(params)) as (params: BaseSeriesParams<'Line'>) => LineSeriesStrategy;
    }
    if (type === 'Bar') {
      return ((params) => new BarSeriesStrategy(params)) as (params: BaseSeriesParams<'Bar'>) => BarSeriesStrategy;
    }
    throw new Error(`Unsupported chart type: ${type}`);
  }
}

import { CHART_ROOT_CLASSNAME } from '@src/constants';

import styles from './styles.module.scss';

interface CreateContainersOptions {
  parentContainer: HTMLElement;
  showBottomPanel?: boolean;
  showMenuButton?: boolean;
}

enum ZIndex {
  Chart = '0',
  Base = '10',
  Modal = '1000',
}

const ContainerLayoutConfig = {
  headerHeight: 36,
  footerHeight: 32,
  toolbarWidth: 42,
  verticalGap: 8,
};

/**
 * Утилита для создания DOM контейнеров
 */
export class ContainerManager {
  private static injectFont(): void {
    const existingLink = document.querySelector('link[href*="fonts.googleapis.com"]');
    if (existingLink) return;

    const link = document.createElement('link');
    link.rel = 'stylesheet';
    link.href = 'https://fonts.googleapis.com/css2?family=Inter:opsz,wght@14..32,100..900&display=swap';
    document.head.appendChild(link);
  }

  /**
   * Создание контейнеров для графика и UI компонентов
   */
  static createContainers({ parentContainer, showBottomPanel, showMenuButton }: CreateContainersOptions) {
    this.injectFont();

    const { headerHeight, footerHeight, toolbarWidth, verticalGap } = ContainerLayoutConfig;

    parentContainer.innerHTML = '';
    parentContainer.classList.add(CHART_ROOT_CLASSNAME);
    parentContainer.style.height = '100%';
    parentContainer.style.width = '100%';
    parentContainer.style.padding = 'var(--space-1000)';
    parentContainer.style.backgroundColor = 'var(--neutral-0)';
    parentContainer.style.borderRadius = 'var(--space-0500)';

    parentContainer.style.display = 'grid';
    parentContainer.style.rowGap = `${verticalGap}px`;
    parentContainer.style.gridTemplateRows = showBottomPanel
      ? `${headerHeight}px minmax(0, 1fr) ${footerHeight}px`
      : `${headerHeight}px minmax(0, 1fr)`;

    const headerContainer = document.createElement('div');
    headerContainer.style.width = '100%';
    headerContainer.style.height = `${headerHeight}px`;
    headerContainer.style.overflow = 'auto hidden';
    headerContainer.className = styles.scrollableBox;

    const footerContainer = document.createElement('div');
    footerContainer.style.width = '100%';
    footerContainer.style.height = `${footerHeight}px`;

    const chartContainer = document.createElement('div');
    chartContainer.style.height = '100%';
    chartContainer.style.width = '100%';
    chartContainer.style.minWidth = '0';
    chartContainer.style.minHeight = '0';
    chartContainer.style.display = 'grid';
    chartContainer.style.columnGap = 'var(--space-0500)';
    chartContainer.style.gridTemplateColumns = 'minmax(0, 1fr)';

    const chartAreaContainer = document.createElement('div');
    chartAreaContainer.style.position = 'relative';
    chartAreaContainer.style.height = '100%';
    chartAreaContainer.style.minHeight = '0';
    chartAreaContainer.style.minWidth = '0';
    chartAreaContainer.style.cursor = 'crosshair';

    const toolBarContainer = document.createElement('div');
    toolBarContainer.style.height = '100%';
    toolBarContainer.style.minHeight = '0';
    toolBarContainer.style.overflow = 'hidden';

    const controlBarContainer = document.createElement('div');
    controlBarContainer.style.width = '250px';
    controlBarContainer.style.position = 'absolute';
    controlBarContainer.style.left = '50%';
    controlBarContainer.style.transform = 'translateX(-50%)';
    controlBarContainer.style.bottom = 'var(--space-2000)';
    controlBarContainer.style.zIndex = ZIndex.Base;

    const modalContainer = document.createElement('div');
    modalContainer.className = 'moex-chart-modal-container';
    modalContainer.style.position = 'absolute';
    modalContainer.style.width = '100%';
    modalContainer.style.height = '100%';
    modalContainer.style.maxWidth = '100%';
    modalContainer.style.maxHeight = '100%';
    modalContainer.style.zIndex = ZIndex.Modal;
    modalContainer.style.pointerEvents = 'none';

    chartAreaContainer.append(controlBarContainer, modalContainer);
    chartContainer.append(chartAreaContainer);
    parentContainer.append(headerContainer, chartContainer);

    if (showBottomPanel) {
      parentContainer.append(footerContainer);
    }

    const toggleToolbar = () => {
      const mounted = toolBarContainer.isConnected;

      if (mounted) {
        toolBarContainer.remove();
        chartContainer.style.gridTemplateColumns = 'minmax(0, 1fr)';
        return false;
      }

      chartContainer.insertBefore(toolBarContainer, chartAreaContainer);
      chartContainer.style.gridTemplateColumns = `${toolbarWidth}px minmax(0, 1fr)`;
      return true;
    };

    chartContainer.insertBefore(toolBarContainer, chartAreaContainer);
    chartContainer.style.gridTemplateColumns = `${toolbarWidth}px minmax(0, 1fr)`;

    if (!showMenuButton) {
      toggleToolbar();
    }

    return {
      headerContainer,
      footerContainer,

      chartContainer,
      chartAreaContainer,
      toolBarContainer,

      modalContainer,
      controlBarContainer,

      toggleToolbar,
    };
  }

  /**
   * Очистка контейнеров
   */
  static clearContainers(parentContainer: HTMLElement): void {
    parentContainer.innerHTML = '';
  }

  static createPaneContainers() {
    const legendContainer = document.createElement('div');
    legendContainer.style.width = '80%';
    legendContainer.style.position = 'absolute';
    legendContainer.style.top = '0';
    legendContainer.style.left = '0';
    legendContainer.style.zIndex = ZIndex.Base;
    legendContainer.style.pointerEvents = 'none';

    const paneOverlayContainer = document.createElement('div');
    paneOverlayContainer.className = 'moex-chart-pane-overlay-container';
    paneOverlayContainer.style.position = 'absolute';
    paneOverlayContainer.style.inset = '0';
    paneOverlayContainer.style.zIndex = ZIndex.Base;
    paneOverlayContainer.style.pointerEvents = 'none';

    return {
      legendContainer,
      paneOverlayContainer,
    };
  }
}


import {
  AutoscaleInfo,
  CrosshairMode,
  IChartApi,
  IPrimitivePaneView,
  ISeriesApi,
  ISeriesPrimitive,
  ISeriesPrimitiveAxisView,
  Logical,
  PrimitiveHoveredItem,
  SeriesAttachedParameter,
  SeriesOptionsMap,
  SeriesType,
  Time,
} from 'lightweight-charts';

import { BehaviorSubject, distinctUntilChanged, Observable, Subscription } from 'rxjs';

import { getPointerPoint as getPointerPointFromEvent } from '@core/Drawings/helpers';
import { AxisLabel, AxisSegment, Point, SeriesApi } from '@core/Drawings/types';

import { ChartOptionsModel, SettingsTab, SettingsValues } from '@src/types';

export interface ISeriesDrawing extends ISeriesPrimitive<Time> {
  show(): void;
  hide(): void;
  rebind(series: ISeriesApi<SeriesType>): void;
  destroy(): void;
  isCreationPending(): boolean;
  waitTillReady(): Promise<void>;

  shouldShowInObjectTree(): boolean;

  getState(): unknown;
  setState(state: unknown): void;

  getSettings(): SettingsValues;
  updateSettings(settings: SettingsValues): void;
  getSettingsTabs(): SettingsTab[];

  subscribeIsSelected(cb: (isSelected: boolean) => void): void;
}

interface SeriesDrawingBaseParams {
  container: HTMLElement;
  chart: IChartApi;
  series: SeriesApi;
}

export abstract class SeriesDrawingBase<TSettings extends SettingsValues = SettingsValues> implements ISeriesDrawing {
  protected hidden = false;
  protected chart: IChartApi;
  protected series: SeriesApi;
  protected subscriptions = new Subscription();
  protected abstract mode: unknown;
  protected abstract settings: TSettings;
  protected readonly container: HTMLElement;
  protected isActive: BehaviorSubject<boolean> = new BehaviorSubject(false);

  protected readyPromise: null | Promise<void> = null;
  protected resolveReady: null | (() => void) = null;

  protected requestUpdate: (() => void) | null = null;

  constructor({ chart, series, container }: SeriesDrawingBaseParams) {
    this.chart = chart;
    this.series = series;
    this.container = container;
  }

  public subscribeIsSelected(cb: (isSelected: boolean) => void) {
    return this.isActive.pipe(distinctUntilChanged()).subscribe(cb);
  }

  public show(): void {
    this.hidden = false;
    this.render();
  }

  public hide(): void {
    this.hidden = true;
    this.showCrosshair();
    this.render();
  }

  public rebind(series: SeriesApi): void {
    if (this.series === series) {
      return;
    }

    this.showCrosshair();
    this.unbindEvents();
    this.series.detachPrimitive(this as unknown as ISeriesPrimitive<Time>);

    this.series = series;
    this.requestUpdate = null;

    this.series.attachPrimitive(this as unknown as ISeriesPrimitive<Time>);
    this.render();
  }

  public destroy(): void {
    this.showCrosshair();
    this.unbindEvents();
    this.subscriptions.unsubscribe();
    this.series.detachPrimitive(this as unknown as ISeriesPrimitive<Time>);
    this.requestUpdate = null;
    this.resolveReady?.();
  }

  public waitTillReady(): Promise<void> {
    if (this.mode === 'ready') {
      return Promise.resolve();
    }
    if (!this.readyPromise) {
      this.readyPromise = new Promise((resolve) => {
        this.resolveReady = resolve as () => void;
      });
    }

    return this.readyPromise;
  }

  public shouldShowInObjectTree(): boolean {
    return this.mode !== 'idle';
  }

  public getSettings(): SettingsValues {
    return { ...this.settings };
  }

  public updateSettings(settings: SettingsValues): void {
    this.settings = {
      ...this.settings,
      ...settings,
    };

    this.render();
  }

  public attached(param: SeriesAttachedParameter<Time, keyof SeriesOptionsMap>): void {
    this.requestUpdate = param.requestUpdate;
    this.bindEvents();
  }

  public detached(): void {
    this.showCrosshair();
    this.unbindEvents();
    this.requestUpdate = null;
  }

  public autoscaleInfo(_start: Logical, _end: Logical): AutoscaleInfo | null {
    return null;
  }

  protected render(): void {
    this.updateAllViews();
    this.requestUpdate?.();
  }

  protected hideCrosshair(): void {
    this.chart.applyOptions({
      crosshair: {
        mode: CrosshairMode.Hidden,
      },
    });
  }

  protected showCrosshair(): void {
    this.chart.applyOptions({
      crosshair: {
        mode: CrosshairMode.Normal,
      },
    });
  }

  protected getEventPoint(event: PointerEvent): Point {
    return getPointerPointFromEvent(this.container, event);
  }

  public abstract getRenderData(): any; // todo: make proper type  // todo: добавить в интерфейс\точно ли паблик
  public abstract hitTest(x: number, y: number): PrimitiveHoveredItem | null; // todo: добавить в интерфейс\точно ли паблик
  public abstract getTimeAxisSegments(): AxisSegment[]; // todo: добавить в интерфейс\точно ли паблик
  public abstract getPriceAxisSegments(): AxisSegment[]; // todo: добавить в интерфейс\точно ли паблик
  public abstract getTimeAxisLabel(kind: string): AxisLabel | null; // todo: добавить в интерфейс\точно ли паблик
  public abstract getPriceAxisLabel(kind: string): AxisLabel | null; // todo: добавить в интерфейс\точно ли паблик
  protected abstract bindEvents(): void;
  public abstract updateAllViews(): void;
  protected abstract unbindEvents(): void;
  protected abstract getGeometry(): any; // todo: make proper type // todo: добавить в интерфейс\точно ли паблик

  public abstract getSettingsTabs(): SettingsTab[];
  public abstract getState(): unknown;
  public abstract isCreationPending(): boolean;

  public abstract paneViews(): readonly IPrimitivePaneView[];
  public abstract priceAxisPaneViews(): readonly IPrimitivePaneView[];
  public abstract priceAxisViews(): readonly ISeriesPrimitiveAxisView[];
  public abstract setState(state: unknown): void;
  public abstract timeAxisPaneViews(): readonly IPrimitivePaneView[];
  public abstract timeAxisViews(): readonly ISeriesPrimitiveAxisView[];
}


import { AxisLine } from '@src/core/Drawings/axisLine';
import { Diapson } from '@src/core/Drawings/diapson';
import { FibonacciRetracement } from '@src/core/Drawings/fibonacciRetracement';
import { Ray } from '@src/core/Drawings/ray';
import { Rectangle } from '@src/core/Drawings/rectangle';
import { Ruler } from '@src/core/Drawings/ruler';
import { SliderPosition } from '@src/core/Drawings/sliderPosition';
import { Text } from '@src/core/Drawings/text';
import { Traectory } from '@src/core/Drawings/traectory';
import { TrendLine } from '@src/core/Drawings/trendLine';
import { VolumeProfile } from '@src/core/Drawings/volumeProfile';
import { t } from '@src/translations';
import { DrawingConfig } from '@src/types';

export enum DrawingsNames {
  'trendLine' = 'trendLine',
  'ray' = 'ray',
  'horizontalLine' = 'horizontalLine',
  'horizontalRay' = 'horizontalRay',
  'verticalLine' = 'verticalLine',
  'ruler' = 'ruler',

  'fibonacciRetracement' = 'fibonacciRetracement',

  'sliderLong' = 'sliderLong',
  'sliderShort' = 'sliderShort',
  'diapsonDates' = 'diapsonDates',
  'diapsonPrices' = 'diapsonPrices',
  'fixedRangeProfile' = 'fixedRangeProfile',
  'visibleRangeProfile' = 'visibleRangeProfile',

  'rectangle' = 'rectangle',
  'traectory' = 'traectory',

  'text' = 'text',
}

export const drawingLabelById = (): Record<DrawingsNames, string> => ({
  [DrawingsNames.trendLine]: t('Trend line'),
  [DrawingsNames.ray]: t('Ray'),
  [DrawingsNames.horizontalLine]: t('Horizontal line'),
  [DrawingsNames.horizontalRay]: t('Horizontal ray'),
  [DrawingsNames.verticalLine]: t('Vertical line'),
  [DrawingsNames.fibonacciRetracement]: t('Fibonacci retracement'),
  [DrawingsNames.ruler]: t('Ruler'),
  [DrawingsNames.sliderLong]: t('Long position'),
  [DrawingsNames.sliderShort]: t('Short position'),
  [DrawingsNames.diapsonDates]: t('Dates range'),
  [DrawingsNames.diapsonPrices]: t('Prices range'),
  [DrawingsNames.fixedRangeProfile]: t('Fixed profile volume'),
  [DrawingsNames.visibleRangeProfile]: t('Visible profile volume range'),
  [DrawingsNames.rectangle]: t('Rectangle'),
  [DrawingsNames.traectory]: t('Traectory'),
  [DrawingsNames.text]: t('Text'),
});

export const drawingsMap: Record<DrawingsNames, DrawingConfig> = {
  [DrawingsNames.trendLine]: {
    construct: ({ chart, series, container, eventManager, removeSelf, openSettings }) => {
      return new TrendLine(chart, series, {
        container,
        formatObservable: eventManager.getChartOptionsModel(),
        removeSelf,
        openSettings,
      });
    },
  },
  [DrawingsNames.ray]: {
    construct: ({ chart, series, container, eventManager, removeSelf, openSettings }) => {
      return new Ray(chart, series, {
        container,
        formatObservable: eventManager.getChartOptionsModel(),
        removeSelf,
        openSettings,
      });
    },
  },
  [DrawingsNames.horizontalLine]: {
    construct: ({ chart, series, eventManager, container, removeSelf, openSettings }) => {
      return new AxisLine(chart, series, {
        direction: 'horizontal',
        container,
        formatObservable: eventManager.getChartOptionsModel(),
        removeSelf,
        openSettings,
      });
    },
  },
  [DrawingsNames.horizontalRay]: {
    construct: ({ chart, series, container, eventManager, removeSelf, openSettings }) => {
      return new TrendLine(chart, series, {
        container,
        formatObservable: eventManager.getChartOptionsModel(),
        removeSelf,
        openSettings,
      });
    },
  },
  [DrawingsNames.verticalLine]: {
    construct: ({ chart, series, eventManager, container, removeSelf, openSettings }) => {
      return new AxisLine(chart, series, {
        direction: 'vertical',
        container,
        formatObservable: eventManager.getChartOptionsModel(),
        removeSelf,
        openSettings,
      });
    },
  },
  [DrawingsNames.sliderLong]: {
    construct: ({ chart, series, eventManager, container, removeSelf, openSettings }) => {
      return new SliderPosition(chart, series, {
        side: 'long',
        container,
        formatObservable: eventManager.getChartOptionsModel(),
        removeSelf,
        openSettings,
      });
    },
  },
  [DrawingsNames.fibonacciRetracement]: {
    construct: ({ chart, series, eventManager, container, removeSelf, openSettings }) => {
      return new FibonacciRetracement(chart, series, {
        container,
        formatObservable: eventManager.getChartOptionsModel(),
        removeSelf,
        openSettings,
      });
    },
  },
  [DrawingsNames.sliderShort]: {
    construct: ({ chart, series, eventManager, container, removeSelf, openSettings }) => {
      return new SliderPosition(chart, series, {
        side: 'short',
        container,
        formatObservable: eventManager.getChartOptionsModel(),
        removeSelf,
        openSettings,
      });
    },
  },
  [DrawingsNames.diapsonDates]: {
    construct: ({ chart, series, container, eventManager, removeSelf, openSettings }) => {
      return new Diapson(chart, series, {
        rangeMode: 'date',
        container,
        formatObservable: eventManager.getChartOptionsModel(),
        removeSelf,
        openSettings,
      });
    },
  },
  [DrawingsNames.diapsonPrices]: {
    construct: ({ chart, series, container, eventManager, removeSelf, openSettings }) => {
      return new Diapson(chart, series, {
        rangeMode: 'price',
        container,
        formatObservable: eventManager.getChartOptionsModel(),
        removeSelf,
        openSettings,
      });
    },
  },
  [DrawingsNames.fixedRangeProfile]: {
    construct: ({ chart, series, container, eventManager, removeSelf, openSettings }) => {
      return new VolumeProfile(chart, series, {
        profileKind: 'fixedRange',
        container,
        formatObservable: eventManager.getChartOptionsModel(),
        removeSelf,
        openSettings,
      });
    },
  },
  [DrawingsNames.visibleRangeProfile]: {
    singleInstance: true,
    construct: ({ chart, series, container, eventManager, removeSelf, openSettings }) => {
      return new VolumeProfile(chart, series, {
        profileKind: 'visibleRange',
        container,
        formatObservable: eventManager.getChartOptionsModel(),
        removeSelf,
        openSettings,
      });
    },
  },
  [DrawingsNames.rectangle]: {
    construct: ({ chart, series, eventManager, container, removeSelf, openSettings }) => {
      return new Rectangle(chart, series, {
        container,
        formatObservable: eventManager.getChartOptionsModel(),
        removeSelf,
        openSettings,
      });
    },
  },
  [DrawingsNames.ruler]: {
    singleInstance: true,
    construct: ({ chart, series, eventManager, container, removeSelf }) => {
      return new Ruler(chart, series, {
        formatObservable: eventManager.getChartOptionsModel(),
        container,
        resetTriggers: [eventManager.getTimeframeObs(), eventManager.getInterval()],
        removeSelf,
      });
    },
  },
  [DrawingsNames.traectory]: {
    construct: ({ chart, series, eventManager, container, removeSelf, openSettings }) => {
      return new Traectory(chart, series, {
        formatObservable: eventManager.getChartOptionsModel(),
        container,
        removeSelf,
        openSettings,
      });
    },
  },
  [DrawingsNames.text]: {
    construct: ({ chart, series, eventManager, container, removeSelf, openSettings }) => {
      return new Text(chart, series, {
        formatObservable: eventManager.getChartOptionsModel(),
        container,
        removeSelf,
        openSettings,
      });
    },
  },
};


import { IChartApi, IPrimitivePaneView, PrimitiveHoveredItem, UTCTimestamp } from 'lightweight-charts';
import { Observable } from 'rxjs';

import {
  CustomPriceAxisPaneView,
  CustomPriceAxisView,
  CustomTimeAxisPaneView,
  CustomTimeAxisView,
} from '@core/Drawings/axis';
import { SeriesDrawingBase } from '@core/Drawings/common';
import {
  getAnchorFromPoint,
  getPriceDelta as getPriceDeltaFromCoordinates,
  getXCoordinateFromTime,
  getYCoordinateFromPrice,
  isNearPoint,
  shiftTimeByPixels,
} from '@core/Drawings/helpers';
import { updateViews } from '@core/Drawings/utils';

import { getThemeStore } from '@src/theme';
import { Defaults } from '@src/types/defaults';
import { formatPrice } from '@src/utils';
import { formatDate } from '@src/utils/formatter';

import { TrendLinePaneView } from './paneView';

import {
  createDefaultSettings,
  getTrendLineSettingsTabs,
  TrendLineSettings,
  TrendLineStyle,
  TrendLineTextStyle,
} from './settings';

import type { ISeriesDrawing } from '@core/Drawings/common';
import type { Anchor, AxisLabel, AxisSegment, Point, SeriesApi } from '@core/Drawings/types';
import type { ChartOptionsModel, SettingsTab } from '@src/types';

type TrendLineMode = 'idle' | 'drawing' | 'ready' | 'dragging-start' | 'dragging-end' | 'dragging-body';
type TimeLabelKind = 'start' | 'end';
type PriceLabelKind = 'start' | 'end';

interface TrendLineParams {
  container: HTMLElement;
  formatObservable?: Observable<ChartOptionsModel>;
  removeSelf?: () => void;
  openSettings?: () => void;
}

interface TrendLineState {
  hidden: boolean;
  isActive: boolean;
  mode: TrendLineMode;
  startAnchor: Anchor | null;
  endAnchor: Anchor | null;
  settings: TrendLineSettings;
}

interface TrendLineGeometry {
  startPoint: Point;
  endPoint: Point;
  left: number;
  right: number;
  top: number;
  bottom: number;
}

export interface TrendLineRenderData extends TrendLineGeometry, TrendLineStyle, TrendLineTextStyle {
  showHandles: boolean;
}

const LINE_HIT_TOLERANCE = 6;
const MIN_LINE_SIZE = 4;

export class TrendLine extends SeriesDrawingBase<TrendLineSettings> implements ISeriesDrawing {
  private removeSelf?: () => void;
  private openSettings?: () => void;

  protected settings: TrendLineSettings = createDefaultSettings();

  private isBound = false;

  protected mode: TrendLineMode = 'idle';

  private startAnchor: Anchor | null = null;
  private endAnchor: Anchor | null = null;

  private dragPointerId: number | null = null;
  private dragStartPoint: Point | null = null;
  private dragStateSnapshot: TrendLineState | null = null;

  private displayFormat: ChartOptionsModel = {
    dateFormat: Defaults.dateFormat,
    timeFormat: Defaults.timeFormat,
    showTime: Defaults.showTime,
  };

  private readonly paneView: TrendLinePaneView;
  private readonly timeAxisPaneView: CustomTimeAxisPaneView;
  private readonly priceAxisPaneView: CustomPriceAxisPaneView;
  private readonly startTimeAxisView: CustomTimeAxisView;
  private readonly endTimeAxisView: CustomTimeAxisView;
  private readonly startPriceAxisView: CustomPriceAxisView;
  private readonly endPriceAxisView: CustomPriceAxisView;

  constructor(
    chart: IChartApi,
    series: SeriesApi,
    { container, formatObservable, removeSelf, openSettings }: TrendLineParams,
  ) {
    super({ chart, series, container });
    this.removeSelf = removeSelf;
    this.openSettings = openSettings;

    this.paneView = new TrendLinePaneView(this);

    this.timeAxisPaneView = new CustomTimeAxisPaneView({
      getAxisSegments: () => this.getTimeAxisSegments(),
    });

    this.priceAxisPaneView = new CustomPriceAxisPaneView({
      getAxisSegments: () => this.getPriceAxisSegments(),
    });

    this.startTimeAxisView = new CustomTimeAxisView({
      getAxisLabel: (kind) => this.getTimeAxisLabel(kind),
      labelKind: 'start',
    });

    this.endTimeAxisView = new CustomTimeAxisView({
      getAxisLabel: (kind) => this.getTimeAxisLabel(kind),
      labelKind: 'end',
    });

    this.startPriceAxisView = new CustomPriceAxisView({
      getAxisLabel: (kind) => this.getPriceAxisLabel(kind),
      labelKind: 'start',
    });

    this.endPriceAxisView = new CustomPriceAxisView({
      getAxisLabel: (kind) => this.getPriceAxisLabel(kind),
      labelKind: 'end',
    });

    if (formatObservable) {
      this.subscriptions.add(
        formatObservable.subscribe((format) => {
          this.displayFormat = format;
          this.render();
        }),
      );
    }

    this.series.attachPrimitive(this);
  }

  public isCreationPending(): boolean {
    return this.mode === 'idle' || this.mode === 'drawing';
  }

  public getState(): TrendLineState {
    return {
      hidden: this.hidden,
      isActive: this.isActive.value,
      mode: this.mode,
      startAnchor: this.startAnchor,
      endAnchor: this.endAnchor,
      settings: { ...this.settings },
    };
  }

  public setState(state: unknown): void {
    const nextState = state as Partial<TrendLineState>;

    if ('hidden' in nextState && typeof nextState.hidden === 'boolean') {
      this.hidden = nextState.hidden;
    }

    if ('isActive' in nextState && typeof nextState.isActive === 'boolean') {
      this.isActive.next(nextState.isActive);
    }

    if ('mode' in nextState && nextState.mode) {
      this.mode = nextState.mode;
    }

    if ('startAnchor' in nextState) {
      this.startAnchor = nextState.startAnchor ?? null;
    }

    if ('endAnchor' in nextState) {
      this.endAnchor = nextState.endAnchor ?? null;
    }

    if ('settings' in nextState && nextState.settings) {
      this.settings = {
        ...createDefaultSettings(),
        ...nextState.settings,
      };
    }

    this.render();
  }

  public getSettingsTabs(): SettingsTab[] {
    return getTrendLineSettingsTabs(this.settings);
  }

  public updateAllViews(): void {
    updateViews([
      this.paneView,
      this.timeAxisPaneView,
      this.priceAxisPaneView,
      this.startTimeAxisView,
      this.endTimeAxisView,
      this.startPriceAxisView,
      this.endPriceAxisView,
    ]);
  }

  public paneViews(): readonly IPrimitivePaneView[] {
    return [this.paneView];
  }

  public timeAxisPaneViews(): readonly IPrimitivePaneView[] {
    return [this.timeAxisPaneView];
  }

  public priceAxisPaneViews(): readonly IPrimitivePaneView[] {
    return [this.priceAxisPaneView];
  }

  public timeAxisViews() {
    return [this.startTimeAxisView, this.endTimeAxisView];
  }

  public priceAxisViews() {
    return [this.startPriceAxisView, this.endPriceAxisView];
  }

  public getRenderData(): TrendLineRenderData | null {
    if (this.hidden) {
      return null;
    }

    const geometry = this.getGeometry();

    if (!geometry) {
      return null;
    }

    return {
      ...geometry,
      showHandles: this.isActive.value,
      ...this.settings,
    };
  }

  public hitTest(x: number, y: number): PrimitiveHoveredItem | null {
    if (this.hidden || this.mode === 'idle' || this.mode === 'drawing') {
      return null;
    }

    const point = { x, y };

    if (this.getPointTarget(point)) {
      return {
        cursorStyle: 'move',
        externalId: 'trend-line',
        zOrder: 'top',
      };
    }

    if (!this.isPointNearLine(point)) {
      return null;
    }

    return {
      cursorStyle: 'grab',
      externalId: 'trend-line',
      zOrder: 'top',
    };
  }

  public getTimeAxisSegments(): AxisSegment[] {
    if (!this.isActive.value) {
      return [];
    }

    const geometry = this.getGeometry();

    if (!geometry) {
      return [];
    }

    const { colors } = getThemeStore();

    return [
      {
        from: geometry.left,
        to: geometry.right,
        color: colors.axisMarkerAreaFill,
      },
    ];
  }

  public getPriceAxisSegments(): AxisSegment[] {
    if (!this.isActive.value) {
      return [];
    }

    const geometry = this.getGeometry();

    if (!geometry) {
      return [];
    }

    const { colors } = getThemeStore();

    return [
      {
        from: geometry.top,
        to: geometry.bottom,
        color: colors.axisMarkerAreaFill,
      },
    ];
  }

  public getTimeAxisLabel(kind: string): AxisLabel | null {
    if (!this.isActive.value || (kind !== 'start' && kind !== 'end')) {
      return null;
    }

    const coordinate = this.getTimeCoordinate(kind);
    const text = this.getTimeText(kind);

    if (coordinate === null || !text) {
      return null;
    }

    const { colors } = getThemeStore();

    return {
      coordinate,
      text,
      textColor: colors.chartPriceLineText,
      backgroundColor: colors.axisMarkerLabelFill,
    };
  }

  public getPriceAxisLabel(kind: string): AxisLabel | null {
    if (!this.isActive.value || (kind !== 'start' && kind !== 'end')) {
      return null;
    }

    const coordinate = this.getPriceCoordinate(kind);
    const text = this.getPriceText(kind);

    if (coordinate === null || !text) {
      return null;
    }

    const { colors } = getThemeStore();

    return {
      coordinate,
      text,
      textColor: colors.chartPriceLineText,
      backgroundColor: colors.axisMarkerLabelFill,
    };
  }

  protected bindEvents(): void {
    if (this.isBound) {
      return;
    }

    this.isBound = true;

    this.container.addEventListener('dblclick', this.handleDoubleClick);
    this.container.addEventListener('pointerdown', this.handlePointerDown);
    window.addEventListener('pointermove', this.handlePointerMove);
    window.addEventListener('pointerup', this.handlePointerUp);
    window.addEventListener('pointercancel', this.handlePointerUp);
  }

  protected unbindEvents(): void {
    if (!this.isBound) {
      return;
    }

    this.isBound = false;

    this.container.removeEventListener('dblclick', this.handleDoubleClick);
    this.container.removeEventListener('pointerdown', this.handlePointerDown);
    window.removeEventListener('pointermove', this.handlePointerMove);
    window.removeEventListener('pointerup', this.handlePointerUp);
    window.removeEventListener('pointercancel', this.handlePointerUp);
  }

  private handleDoubleClick = (event: MouseEvent): void => {
    if (this.hidden || this.mode === 'idle' || this.mode === 'drawing') {
      return;
    }

    const rect = this.container.getBoundingClientRect();
    const point = {
      x: event.clientX - rect.left,
      y: event.clientY - rect.top,
    };

    if (!this.getPointTarget(point) && !this.isPointNearLine(point)) {
      return;
    }

    event.preventDefault();
    event.stopPropagation();

    this.openSettings?.();
  };

  private handlePointerDown = (event: PointerEvent): void => {
    if (this.hidden || event.button !== 0) {
      return;
    }

    const point = this.getEventPoint(event);

    if (this.mode === 'idle') {
      event.preventDefault();
      event.stopPropagation();

      this.startDrawing(point);
      return;
    }

    if (this.mode === 'drawing') {
      event.preventDefault();
      event.stopPropagation();

      this.updateDrawing(point);
      this.finishDrawing();
      return;
    }

    if (this.mode !== 'ready') {
      return;
    }

    const pointTarget = this.getPointTarget(point);

    if (!this.isActive.value) {
      if (!pointTarget && !this.isPointNearLine(point)) {
        return;
      }

      event.preventDefault();
      event.stopPropagation();

      this.isActive.next(true);
      this.render();
      return;
    }

    if (pointTarget === 'start') {
      event.preventDefault();
      event.stopPropagation();

      this.startDragging('dragging-start', point, event.pointerId);
      return;
    }

    if (pointTarget === 'end') {
      event.preventDefault();
      event.stopPropagation();

      this.startDragging('dragging-end', point, event.pointerId);
      return;
    }

    if (this.isPointNearLine(point)) {
      event.preventDefault();
      event.stopPropagation();

      this.startDragging('dragging-body', point, event.pointerId);
      return;
    }

    this.isActive.next(false);
    this.render();
  };

  private handlePointerMove = (event: PointerEvent): void => {
    const point = this.getEventPoint(event);

    if (this.mode === 'drawing') {
      this.updateDrawing(point);
      return;
    }

    if (this.dragPointerId !== event.pointerId) {
      return;
    }

    if (this.mode === 'dragging-start' || this.mode === 'dragging-end') {
      event.preventDefault();
      event.stopPropagation();

      this.movePoint(point);
      this.render();
      return;
    }

    if (this.mode === 'dragging-body') {
      event.preventDefault();
      event.stopPropagation();

      this.moveBody(point);
      this.render();
    }
  };

  private handlePointerUp = (event: PointerEvent): void => {
    if (this.dragPointerId !== event.pointerId) {
      return;
    }

    if (this.mode === 'dragging-start' || this.mode === 'dragging-end' || this.mode === 'dragging-body') {
      this.finishDragging();
    }
  };

  private startDrawing(point: Point): void {
    const anchor = this.createAnchor(point);

    if (!anchor) {
      return;
    }

    this.startAnchor = anchor;
    this.endAnchor = anchor;
    this.isActive.next(true);
    this.mode = 'drawing';

    this.render();
  }

  private updateDrawing(point: Point): void {
    const anchor = this.createAnchor(point);

    if (!anchor) {
      return;
    }

    this.endAnchor = anchor;
    this.render();
  }

  private finishDrawing(): void {
    const geometry = this.getGeometry();

    if (!geometry) {
      return;
    }

    const lineSize = Math.hypot(
      geometry.endPoint.x - geometry.startPoint.x,
      geometry.endPoint.y - geometry.startPoint.y,
    );

    if (lineSize < MIN_LINE_SIZE) {
      this.removeSelf?.();
      return;
    }

    this.mode = 'ready';
    this.resolveReady?.();

    this.render();
  }

  private startDragging(mode: TrendLineMode, point: Point, pointerId: number): void {
    this.mode = mode;

    this.dragPointerId = pointerId;
    this.dragStartPoint = point;
    this.dragStateSnapshot = this.getState();

    this.hideCrosshair();
    this.render();
  }

  private finishDragging(): void {
    this.mode = 'ready';
    this.resolveReady?.();

    this.dragPointerId = null;
    this.dragStartPoint = null;
    this.dragStateSnapshot = null;

    this.showCrosshair();
    this.render();
  }

  private movePoint(point: Point): void {
    const anchor = this.createAnchor(point);

    if (!anchor) {
      return;
    }

    if (this.mode === 'dragging-start') {
      this.startAnchor = anchor;
    }

    if (this.mode === 'dragging-end') {
      this.endAnchor = anchor;
    }
  }

  private moveBody(point: Point): void {
    const snapshot = this.dragStateSnapshot;

    if (!snapshot?.startAnchor || !snapshot.endAnchor || !this.dragStartPoint) {
      return;
    }

    const offsetX = point.x - this.dragStartPoint.x;
    const priceOffset = getPriceDeltaFromCoordinates(this.series, this.dragStartPoint.y, point.y);

    const nextStartTime = shiftTimeByPixels(this.chart, snapshot.startAnchor.time, offsetX, this.series);
    const nextEndTime = shiftTimeByPixels(this.chart, snapshot.endAnchor.time, offsetX, this.series);

    if (nextStartTime === null || nextEndTime === null) {
      return;
    }

    this.startAnchor = {
      time: nextStartTime,
      price: snapshot.startAnchor.price + priceOffset,
    };

    this.endAnchor = {
      time: nextEndTime,
      price: snapshot.endAnchor.price + priceOffset,
    };
  }

  private createAnchor(point: Point): Anchor | null {
    return getAnchorFromPoint(this.chart, this.series, point);
  }

  protected getGeometry(): TrendLineGeometry | null {
    if (!this.startAnchor || !this.endAnchor) {
      return null;
    }

    const startX = getXCoordinateFromTime(this.chart, this.startAnchor.time, this.series);
    const endX = getXCoordinateFromTime(this.chart, this.endAnchor.time, this.series);
    const startY = getYCoordinateFromPrice(this.series, this.startAnchor.price);
    const endY = getYCoordinateFromPrice(this.series, this.endAnchor.price);

    if (startX === null || endX === null || startY === null || endY === null) {
      return null;
    }

    const startPoint = {
      x: Math.round(Number(startX)),
      y: Math.round(Number(startY)),
    };

    const endPoint = {
      x: Math.round(Number(endX)),
      y: Math.round(Number(endY)),
    };

    return {
      startPoint,
      endPoint,
      left: Math.min(startPoint.x, endPoint.x),
      right: Math.max(startPoint.x, endPoint.x),
      top: Math.min(startPoint.y, endPoint.y),
      bottom: Math.max(startPoint.y, endPoint.y),
    };
  }

  private getPointTarget(point: Point): 'start' | 'end' | null {
    const geometry = this.getGeometry();

    if (!geometry) {
      return null;
    }

    if (isNearPoint(point, geometry.startPoint.x, geometry.startPoint.y, 8)) {
      return 'start';
    }

    if (isNearPoint(point, geometry.endPoint.x, geometry.endPoint.y, 8)) {
      return 'end';
    }

    return null;
  }

  private isPointNearLine(point: Point): boolean {
    const geometry = this.getGeometry();

    if (!geometry) {
      return false;
    }

    return this.getDistanceToSegment(point, geometry.startPoint, geometry.endPoint) <= LINE_HIT_TOLERANCE;
  }

  private getDistanceToSegment(point: Point, startPoint: Point, endPoint: Point): number {
    const dx = endPoint.x - startPoint.x;
    const dy = endPoint.y - startPoint.y;

    if (dx === 0 && dy === 0) {
      return Math.hypot(point.x - startPoint.x, point.y - startPoint.y);
    }

    const t = Math.max(
      0,
      Math.min(1, ((point.x - startPoint.x) * dx + (point.y - startPoint.y) * dy) / (dx * dx + dy * dy)),
    );

    const projectionX = startPoint.x + t * dx;
    const projectionY = startPoint.y + t * dy;

    return Math.hypot(point.x - projectionX, point.y - projectionY);
  }

  private getTimeCoordinate(kind: TimeLabelKind): number | null {
    const anchor = kind === 'start' ? this.startAnchor : this.endAnchor;

    if (!anchor) {
      return null;
    }

    const coordinate = getXCoordinateFromTime(this.chart, anchor.time, this.series);

    return coordinate === null ? null : Number(coordinate);
  }

  private getPriceCoordinate(kind: PriceLabelKind): number | null {
    const anchor = kind === 'start' ? this.startAnchor : this.endAnchor;

    if (!anchor) {
      return null;
    }

    const coordinate = getYCoordinateFromPrice(this.series, anchor.price);

    return coordinate === null ? null : Number(coordinate);
  }

  private getTimeText(kind: TimeLabelKind): string {
    const anchor = kind === 'start' ? this.startAnchor : this.endAnchor;

    if (!anchor || typeof anchor.time !== 'number') {
      return '';
    }

    return formatDate(
      anchor.time as UTCTimestamp,
      this.displayFormat.dateFormat,
      this.displayFormat.timeFormat,
      this.displayFormat.showTime,
    );
  }

  private getPriceText(kind: PriceLabelKind): string {
    const anchor = kind === 'start' ? this.startAnchor : this.endAnchor;

    if (!anchor) {
      return '';
    }

    return formatPrice(anchor.price) ?? '';
  }
}


import { CanvasRenderingTarget2D } from 'fancy-canvas';
import { IPrimitivePaneRenderer } from 'lightweight-charts';

import { getThemeStore } from '@src/theme';

import { TrendLine } from './trendLine';

const UI = {
  lineWidth: 2,
  handleRadius: 5,
  handleBorderWidth: 2,
  textLineHeightMultiplier: 1.2,
  textOffset: 4,
};

export class TrendLinePaneRenderer implements IPrimitivePaneRenderer {
  private readonly trendLine: TrendLine;

  constructor(trendLine: TrendLine) {
    this.trendLine = trendLine;
  }

  public draw(target: CanvasRenderingTarget2D): void {
    const data = this.trendLine.getRenderData();

    if (!data) {
      return;
    }

    const { colors } = getThemeStore();

    target.useBitmapCoordinateSpace(({ context, horizontalPixelRatio, verticalPixelRatio }) => {
      const pixelRatio = Math.max(horizontalPixelRatio, verticalPixelRatio);

      const startX = data.startPoint.x * horizontalPixelRatio;
      const startY = data.startPoint.y * verticalPixelRatio;
      const endX = data.endPoint.x * horizontalPixelRatio;
      const endY = data.endPoint.y * verticalPixelRatio;

      context.save();

      context.lineWidth = UI.lineWidth * pixelRatio;
      context.strokeStyle = data.lineColor;
      context.beginPath();
      context.moveTo(startX, startY);
      context.lineTo(endX, endY);
      context.stroke();

      if (data.text.trim()) {
        drawTextAlongLine(context, {
          startX,
          startY,
          endX,
          endY,
          text: data.text,
          fontSize: data.fontSize,
          isBold: data.isBold,
          isItalic: data.isItalic,
          textColor: data.textColor,
          horizontalPixelRatio,
          verticalPixelRatio,
        });
      }

      if (data.showHandles) {
        context.fillStyle = colors.chartBackground;
        context.strokeStyle = colors.chartLineColor;
        context.lineWidth = UI.handleBorderWidth * pixelRatio;

        drawHandle(context, startX, startY, UI.handleRadius * pixelRatio);
        drawHandle(context, endX, endY, UI.handleRadius * pixelRatio);
      }

      context.restore();
    });
  }
}

function drawHandle(context: CanvasRenderingContext2D, x: number, y: number, radius: number): void {
  context.beginPath();
  context.arc(x, y, radius, 0, Math.PI * 2);
  context.fill();
  context.stroke();
}

function drawTextAlongLine(
  context: CanvasRenderingContext2D,
  params: {
    startX: number;
    startY: number;
    endX: number;
    endY: number;
    text: string;
    fontSize: number;
    isBold: boolean;
    isItalic: boolean;
    textColor: string;
    horizontalPixelRatio: number;
    verticalPixelRatio: number;
  },
): void {
  const { startX, startY, endX, endY, text, fontSize, isBold, isItalic, textColor, verticalPixelRatio } = params;

  const lines = text.split('\n');
  const safeFontSize = Math.max(1, fontSize);
  const fontSizePx = safeFontSize * verticalPixelRatio;
  const lineHeight = safeFontSize * UI.textLineHeightMultiplier * verticalPixelRatio;

  const dx = endX - startX;
  const dy = endY - startY;

  let angle = Math.atan2(dy, dx);

  if (angle > Math.PI / 2 || angle < -Math.PI / 2) {
    angle += Math.PI;
  }

  const centerX = (startX + endX) / 2;
  const centerY = (startY + endY) / 2;

  const fontWeight = isBold ? '700 ' : '';
  const fontStyle = isItalic ? 'italic ' : '';

  context.save();
  context.translate(centerX, centerY);
  context.rotate(angle);

  context.font = `${fontStyle}${fontWeight}${fontSizePx}px Inter, sans-serif`;
  context.fillStyle = textColor;
  context.textAlign = 'center';
  context.textBaseline = 'middle';

  const blockHeight = lines.length * lineHeight;
  const textOffset = UI.textOffset * verticalPixelRatio;
  const textCenterY = -(blockHeight / 2 + textOffset);
  const startLineY = textCenterY - blockHeight / 2 + lineHeight / 2;

  lines.forEach((line, index) => {
    context.fillText(line, 0, startLineY + index * lineHeight);
  });

  context.restore();
}


import { getThemeStore } from '@src/theme';
import { t } from '@src/translations';

import { SettingField, SettingsTab, SettingsValues } from '@src/types';

export interface TrendLineStyle {
  lineColor: string;
}

export interface TrendLineTextStyle {
  fontSize: number;
  text: string;
  isBold: boolean;
  isItalic: boolean;
  textColor: string;
}

export type TrendLineSettings = TrendLineStyle & TrendLineTextStyle & SettingsValues;

export function createDefaultSettings(): TrendLineSettings {
  const { colors } = getThemeStore();

  return {
    lineColor: colors.chartLineColor,
    fontSize: 14,
    text: '',
    isBold: false,
    isItalic: false,
    textColor: colors.chartLineColor,
  };
}

export function getTrendLineSettingsTabs(settings: TrendLineSettings): SettingsTab[] {
  const styleFields: SettingField[] = [
    {
      key: 'lineColor',
      label: t('Line color'),
      type: 'color',
      defaultValue: settings.lineColor,
    },
  ];

  const textFields: SettingField[] = [
    {
      key: 'fontSize',
      label: t('Font size'),
      type: 'number',
      defaultValue: settings.fontSize,
      min: 8,
      max: 24,
    },
    {
      key: 'text',
      label: t('Text'),
      type: 'textarea',
      defaultValue: settings.text,
      placeholder: t('Enter text'),
    },
    {
      key: 'isBold',
      label: t('Bold'),
      type: 'boolean',
      defaultValue: settings.isBold,
    },
    {
      key: 'isItalic',
      label: t('Italics'),
      type: 'boolean',
      defaultValue: settings.isItalic,
    },
    {
      key: 'textColor',
      label: t('Text color'),
      type: 'color',
      defaultValue: settings.textColor,
    },
  ];

  return [
    {
      key: 'style',
      label: t('Style'),
      fields: styleFields,
    },
    {
      key: 'text',
      label: t('Text'),
      fields: textFields,
    },
  ];
}


import { IChartApi, IPaneApi, PriceScaleMode, Time } from 'lightweight-charts';

import { BehaviorSubject, Subscription } from 'rxjs';

import { ChartTooltip } from '@components/ChartTooltip';
import { LegendComponent } from '@components/Legend';
import { ChartMouseEvents } from '@core/ChartMouseEvents';
import { ContainerManager } from '@core/ContainerManager';
import { DataSource } from '@core/DataSource';
import { DOMModel } from '@core/DOMModel';
import { DrawingsManager, DrawingsManagerSnapshot } from '@core/DrawingsManager';
import { EventManager } from '@core/EventManager';
import { Hotkeys } from '@core/Hotkeys';
import { Indicator } from '@core/Indicator';
import { Legend } from '@core/Legend';
import { PriceScale, PriceScaleControls } from '@core/PriceScale';
import { ReactRenderer } from '@core/ReactRenderer';
import { TooltipService } from '@core/Tooltip';
import { UIRenderer } from '@core/UIRenderer';
import { EntitySettingsModal } from '@src/components/EntitySettingsModal';
import { DrawingsNames, indicatorLabelById, MAIN_PANE_INDEX } from '@src/constants';
import { ModalRenderer } from '@src/core/ModalRenderer';
import { SeriesFactory, SeriesStrategies } from '@src/modules/series-strategies/SeriesFactory';
import { t } from '@src/translations';
import { Direction, OHLCConfig, TooltipConfig } from '@src/types';
import {
  DOMObjectSnapshot,
  IndicatorSnapshot,
  ISerializable,
  PaneSnapshot,
  PriceScaleSide,
  PriceScaleSnapshot,
} from '@src/types/snapshot';
import { ensureDefined } from '@src/utils';

export interface PaneParams {
  id: number;
  lwcChart: IChartApi;
  eventManager: EventManager;
  DOM: DOMModel;
  isMainPane: boolean;
  ohlcConfig: OHLCConfig;
  dataSource: DataSource | null; // todo: deal with dataSource. На каких то пейнах он нужен, на каких то нет
  basedOn?: Pane; // Pane на котором находится главная серия, или серия, по которой строятся серии на текущем пейне
  subscribeChartEvent: ChartMouseEvents['subscribe'];
  tooltipConfig: TooltipConfig;
  onDelete: () => void;
  chartContainer: HTMLElement;
  modalRenderer: ModalRenderer;
  initialPriceScales?: PriceScaleSnapshot[];
  onPriceScaleStateChange: () => void;
  leftPriceScaleVisible: boolean;
  rightPriceScaleVisible: boolean;
  hotkeys: Hotkeys;
}

// todo: Pane, ему должна принадлежать mainSerie, а также IndicatorManager и drawingsManager, mouseEvents. Также перекинуть соответствующие/необходимые свойства из чарта, и из чарта удалить
// todo: Учитывать, что есть линейка, которая рисуется одна для всех пейнов
// todo: в CompareManage, при создании нового пейна для сравнения - инициализируем новый dataSource, принадлежащий только конкретному пейну. Убираем возможность добавлять индикаторы на такие пейны
// todo: на каждый символ свой DataSource (учитывать что есть MainPane и "главный" DataSource, который инициализиурется во время старта moexChart)
// todo: сделать два разных представления для compare, в зависимости от отображения на главном пейне или на второстепенном

export class Pane implements ISerializable<PaneSnapshot> {
  private readonly id: number;
  private readonly isMain: boolean;
  private mainSeries = new BehaviorSubject<SeriesStrategies | null>(null); // Main Series. Exists in a single copy
  private legend!: Legend;
  private tooltip: TooltipService | undefined;
  private readonly indicatorsMap = new BehaviorSubject<Map<string, Indicator>>(new Map());
  private readonly lwcPane: IPaneApi<Time>;
  private readonly lwcChart: IChartApi;
  private readonly eventManager: EventManager;
  private readonly drawingsManager: DrawingsManager;
  private legendContainer!: HTMLElement;
  private paneOverlayContainer!: HTMLElement;
  private legendRenderer!: UIRenderer;
  private tooltipRenderer: UIRenderer | undefined;
  private readonly modalRenderer: ModalRenderer;
  private readonly leftPriceScale: PriceScale;
  private readonly rightPriceScale: PriceScale;
  private readonly priceScaleControls: PriceScaleControls;
  private mainSerieSub?: Subscription;
  private readonly subscribeChartEvent: ChartMouseEvents['subscribe'];
  private readonly onDelete: () => void;
  private readonly onPriceScaleStateChange: () => void;
  private readonly subscriptions = new Subscription();
  private paneContainerSyncFrameId: number | null = null;

  constructor({
    lwcChart,
    eventManager,
    dataSource,
    DOM,
    isMainPane,
    ohlcConfig,
    id,
    basedOn,
    subscribeChartEvent,
    tooltipConfig,
    onDelete,
    chartContainer,
    modalRenderer,
    initialPriceScales = [],
    onPriceScaleStateChange,
    leftPriceScaleVisible,
    rightPriceScaleVisible,
    hotkeys,
  }: PaneParams) {
    this.onDelete = onDelete;
    this.onPriceScaleStateChange = onPriceScaleStateChange;
    this.eventManager = eventManager;
    this.lwcChart = lwcChart;
    this.modalRenderer = modalRenderer;
    this.subscribeChartEvent = subscribeChartEvent;
    this.isMain = isMainPane;
    this.id = id;

    if (isMainPane) {
      this.lwcPane = this.lwcChart.panes()[MAIN_PANE_INDEX];
    } else {
      this.lwcPane = this.lwcChart.addPane(true);
    }

    this.leftPriceScale = this.createPriceScale(Direction.Left, initialPriceScales, leftPriceScaleVisible);
    this.rightPriceScale = this.createPriceScale(Direction.Right, initialPriceScales, rightPriceScaleVisible);

    // TODO: Перенести PriceScaleControls внутрь PriceScale, чтобы каждая шкала владела собственными контролами, а PriceScaleControls работал только с одной шкалой.
    this.priceScaleControls = new PriceScaleControls({
      leftPriceScale: this.leftPriceScale,
      rightPriceScale: this.rightPriceScale,
      onPriceScaleChange: this.handlePriceScaleStateChange,
    });

    this.initializeLegend({ ohlcConfig });

    this.tooltip = new TooltipService({
      config: tooltipConfig,
      legend: this.legend,
      paneOverlayContainer: this.paneOverlayContainer,
    });

    this.tooltipRenderer = new ReactRenderer(this.paneOverlayContainer);

    this.tooltipRenderer.renderComponent(
      <ChartTooltip
        formatObs={this.eventManager.getChartOptionsModel()}
        timeframeObs={this.eventManager.getTimeframeObs()}
        viewModel={this.tooltip.getTooltipViewModel()}
        // ohlcConfig={this.legend.getConfig()}
        ohlcConfig={ohlcConfig}
        tooltipConfig={this.tooltip.getConfig()}
      />,
    );

    if (dataSource) {
      this.initializeMainSerie({ lwcChart, dataSource });
    } else if (basedOn) {
      this.mainSeries = basedOn.getMainSerie();
    } else {
      console.error('[Pane]: There is no any mainSerie for new pane');
    }

    this.drawingsManager = new DrawingsManager({
      // todo: менеджер дровингов должен быть один на чарт, не на пейн
      eventManager,
      DOM,
      mainSeries$: this.mainSeries.asObservable(),
      lwcChart,
      container: chartContainer,
      modalRenderer: this.modalRenderer,
      paneId: this.id,
      hotkeys,
    });

    this.subscriptions.add(
      this.drawingsManager.entities().subscribe((drawings) => {
        const hasRuler = drawings.some((drawing) => drawing.getDrawingName() === DrawingsNames.ruler);

        this.legendContainer.style.display = hasRuler ? 'none' : '';
      }),
    );
  }

  public isMainPane = () => {
    return this.isMain;
  };

  public getDrawingsSnapshot(): DrawingsManagerSnapshot {
    return this.drawingsManager.getSnapshot();
  }

  public setDrawingsSnapshot(snapshot: DrawingsManagerSnapshot): void {
    this.drawingsManager.setSnapshot(snapshot);
  }

  public getMainSerie = () => {
    return this.mainSeries;
  };

  public getId = () => {
    return this.id;
  };

  public paneIndex = () => {
    return this.lwcPane.paneIndex();
  };

  public getPriceScale(side: PriceScaleSide): PriceScale {
    return side === Direction.Left ? this.leftPriceScale : this.rightPriceScale;
  }

  public setIndicator(indicatorId: string, indicator: Indicator): void {
    const map = this.indicatorsMap.value;

    map.set(indicatorId, indicator);
    this.indicatorsMap.next(map);
    this.priceScaleControls.refresh();
  }

  public removeIndicator(indicatorId: string): void {
    const map = this.indicatorsMap.value;

    map.delete(indicatorId);
    this.indicatorsMap.next(map);
    this.priceScaleControls.refresh();

    if (map.size === 0 && !this.isMain) {
      this.onDelete();
    }
  }

  public getDrawingManager(): DrawingsManager {
    return this.drawingsManager;
  }

  public schedulePaneContainerSync(): void {
    if (this.paneContainerSyncFrameId !== null) {
      return;
    }

    this.paneContainerSyncFrameId = requestAnimationFrame(() => {
      this.paneContainerSyncFrameId = null;
      this.syncPaneContainers();
    });
  }

  public refreshPriceScaleControls(): void {
    this.priceScaleControls.refresh();
  }

  public resetPriceScalesAutoScale(): void {
    this.leftPriceScale.enableAutoScale();
    this.rightPriceScale.enableAutoScale();
    this.handlePriceScaleStateChange();
  }

  public getSnapshot(): PaneSnapshot {
    const indicators: (DOMObjectSnapshot & IndicatorSnapshot)[] = [];

    this.indicatorsMap.value.forEach((indicator) => {
      indicators.push(indicator.getSnapshot());
    });

    return {
      isMain: this.isMain,
      id: this.id,
      indicators,
      drawings: this.getDrawingsSnapshot(),
      priceScales: [this.leftPriceScale.getSnapshot(), this.rightPriceScale.getSnapshot()],
    };
  }

  public destroy(): void {
    if (this.paneContainerSyncFrameId !== null) {
      cancelAnimationFrame(this.paneContainerSyncFrameId);
      this.paneContainerSyncFrameId = null;
    }

    this.subscriptions.unsubscribe();
    this.tooltip?.destroy();
    this.legend?.destroy();
    this.legendRenderer.destroy();
    this.tooltipRenderer?.destroy();
    this.priceScaleControls.destroy();
    this.legendContainer.remove();
    this.paneOverlayContainer.remove();
    this.indicatorsMap.complete();
    this.mainSerieSub?.unsubscribe();

    if (this.isMain) {
      this.mainSeries.value?.destroy();
      this.mainSeries.complete();
    }
  }

  private createPriceScale(
    side: PriceScaleSide,
    initialPriceScales: PriceScaleSnapshot[],
    initialVisible: boolean,
  ): PriceScale {
    const initialMode =
      initialPriceScales.find((priceScaleSnapshot) => priceScaleSnapshot.side === side)?.mode ?? PriceScaleMode.Normal;

    return new PriceScale({
      paneId: this.id,
      side,
      pane: this.lwcPane,
      initialMode,
      initialVisible,
      hasVisibleSeriesData: () => this.hasVisibleSeriesData(side),
    });
  }

  private hasVisibleSeriesData(side: PriceScaleSide): boolean {
    const mainSeries = this.mainSeries.value;

    if (this.isMain && side === Direction.Right && mainSeries?.isVisible() && mainSeries.data().length > 0) {
      return true;
    }

    const indicators = Array.from(this.indicatorsMap.value.values());

    for (let indicatorIndex = 0; indicatorIndex < indicators.length; indicatorIndex += 1) {
      const series = Array.from(indicators[indicatorIndex].getSeriesMap().values());

      for (let seriesIndex = 0; seriesIndex < series.length; seriesIndex += 1) {
        const currentSeries = series[seriesIndex];
        const options = currentSeries.options();
        const seriesPriceScaleSide = options.priceScaleId ?? Direction.Right;

        if (currentSeries.isVisible() && currentSeries.data().length > 0 && seriesPriceScaleSide === side) {
          return true;
        }
      }
    }

    return false;
  }

  private handlePriceScaleStateChange = (): void => {
    this.priceScaleControls.refresh();
    this.onPriceScaleStateChange();
  };

  private initializeLegend({ ohlcConfig }: { ohlcConfig: OHLCConfig }): void {
    const { legendContainer, paneOverlayContainer } = ContainerManager.createPaneContainers();

    this.legendContainer = legendContainer;
    this.paneOverlayContainer = paneOverlayContainer;
    this.legendRenderer = new ReactRenderer(legendContainer);

    this.schedulePaneContainerSync();

    this.legend = new Legend({
      config: ohlcConfig,
      indicators: this.indicatorsMap,
      eventManager: this.eventManager,
      subscribeChartEvent: this.subscribeChartEvent,
      mainSeries: this.isMain ? this.mainSeries : null,
      paneId: this.id,
      paneIndex: this.paneIndex,
      openIndicatorSettings: (indicatorId, indicator) => {
        let settings = indicator.getSettings();

        this.modalRenderer.renderComponent(
          <EntitySettingsModal
            tabs={[
              {
                key: 'arguments',
                label: t('Arguments'),
                fields: indicator.getSettingsConfig(),
              },
            ]}
            values={settings}
            onChange={(nextSettings) => {
              settings = nextSettings;
            }}
            initialTabKey="arguments"
          />,
          {
            size: 'sm',
            title: indicatorLabelById()[indicatorId],
            onSave: () => indicator.updateSettings(settings),
          },
        );
      },
      // todo: throw isMainPane
    });

    this.legendRenderer.renderComponent(
      <LegendComponent
        ohlcConfig={this.legend.getConfig()}
        viewModel={this.legend.getLegendViewModel()}
      />,
    );
  }

  private initializeMainSerie({ lwcChart, dataSource }: { lwcChart: IChartApi; dataSource: DataSource }): void {
    this.mainSerieSub = this.eventManager.subscribeSeriesSelected((nextSeries) => {
      this.mainSeries.value?.destroy();

      const next = ensureDefined(SeriesFactory.create(nextSeries))({
        lwcChart,
        dataSource,
        mainSymbolId$: this.eventManager.symbolId(),
        mainSymbol$: this.eventManager.symbol(),
        mainSerie$: this.mainSeries,
      });

      this.mainSeries.next(next);
      this.priceScaleControls.refresh();
    });
  }

  private syncPaneContainers(): void {
    const lwcPaneElement = this.lwcPane.getHTMLElement();

    if (!lwcPaneElement) {
      this.schedulePaneContainerSync();
      return;
    }

    /*
      Внутри lightweight-chart DOM построен как таблица из 3 td
      [0] left priceScale, [1] center chart, [2] right priceScale
      Кладём легенду в td[1] и тогда легенда сама будет адаптироваться при изменении ширины шкал
    */
    const cells = lwcPaneElement.querySelectorAll<HTMLTableCellElement>(':scope > td');
    const chartCell = cells.item(1);

    if (!chartCell) {
      this.schedulePaneContainerSync();
      return;
    }

    chartCell.style.position = 'relative';
    chartCell.appendChild(this.legendContainer);
    chartCell.appendChild(this.paneOverlayContainer);

    this.priceScaleControls.mount(lwcPaneElement);
  }
}


import { DataSource } from '@core/DataSource';
import { DrawingsManager, DrawingsManagerSnapshot } from '@core/DrawingsManager';
import { Pane, PaneParams } from '@core/Pane';
import { PriceAxisLabels } from '@core/PriceAxisLabels';
import { Direction } from '@src/types';
import { ISerializable, PaneSnapshot, PriceScaleSide, PriceScaleSnapshot } from '@src/types/snapshot';

import type { Indicator } from '@core/Indicator';
import type { LogicalRange } from 'lightweight-charts';
import type { Observable } from 'rxjs';

interface PaneManagerParams
  extends Omit<
    PaneParams,
    | 'id'
    | 'isMainPane'
    | 'basedOn'
    | 'onDelete'
    | 'initialPriceScales'
    | 'onPriceScaleStateChange'
    | 'leftPriceScaleVisible'
    | 'rightPriceScaleVisible'
  > {
  panesSnapshot: PaneSnapshot[];
}

interface PriceAxisLabelsSources {
  compareEntities$: Observable<Indicator[]>;
  indicatorEntities$: Observable<Indicator[]>;
}

type SharedPaneParams = Omit<PaneManagerParams, 'panesSnapshot'>;

// todo: PaneManager, регулирует порядок пейнов. Знает про MainPane.
// todo: Также перекинуть соответствующие/необходимые свойства из чарта, и из чарта удалить
// todo: в CompareManage, при создании нового пейна для сравнения - инициализируем новый dataSource, принадлежащий только конкретному пейну. Убираем возможность добавлять индикаторы на такие пейны
// todo: на каждый символ свой DataSource (учитывать что есть MainPane и "главный" DataSource, который инициализиурется во время старта moexChart)
// todo: сделать два разных представления для compare, в зависимости от отображения на главном пейне или на второстепенном

export class PaneManager implements ISerializable<PaneSnapshot[]> {
  private readonly sharedPaneParams: SharedPaneParams;
  private readonly panesMap = new Map<number, Pane>();

  private mainPane: Pane;
  private nextPaneId: number;
  private priceAxisLabels: PriceAxisLabels | null = null;
  private leftPriceScaleVisible = false;
  private rightPriceScaleVisible = true;

  constructor({ panesSnapshot, ...sharedPaneParams }: PaneManagerParams) {
    this.sharedPaneParams = sharedPaneParams;

    const mainPaneSnapshot = panesSnapshot.find((paneSnapshot) => paneSnapshot.isMain);
    const mainPaneId = mainPaneSnapshot?.id ?? 0;

    this.mainPane = new Pane({
      ...this.sharedPaneParams,
      id: mainPaneId,
      isMainPane: true,
      onDelete: () => {},
      initialPriceScales: mainPaneSnapshot?.priceScales,
      onPriceScaleStateChange: this.handlePriceScaleStateChange,
      leftPriceScaleVisible: this.leftPriceScaleVisible,
      rightPriceScaleVisible: this.rightPriceScaleVisible,
    });

    this.panesMap.set(mainPaneId, this.mainPane);

    if (mainPaneSnapshot) {
      this.mainPane.setDrawingsSnapshot(mainPaneSnapshot.drawings);
    }

    const greatestPaneId = panesSnapshot.reduce(
      (greatestId, paneSnapshot) => Math.max(greatestId, paneSnapshot.id),
      mainPaneId,
    );

    this.nextPaneId = greatestPaneId + 1;

    panesSnapshot.forEach((paneSnapshot) => {
      if (paneSnapshot.isMain) {
        return;
      }

      const pane = this.addPane(undefined, paneSnapshot.id, paneSnapshot.priceScales);

      pane.setDrawingsSnapshot(paneSnapshot.drawings);
    });

    this.syncPaneContainers();
  }

  public start({ compareEntities$, indicatorEntities$ }: PriceAxisLabelsSources): void {
    this.priceAxisLabels?.destroy();

    this.priceAxisLabels = new PriceAxisLabels({
      mainSeries$: this.mainPane.getMainSerie().asObservable(),
      mainSymbol$: this.sharedPaneParams.eventManager.symbol(),
      compareEntities$,
      indicatorEntities$,
    });
  }

  public setVisibleLogicalRange(logicalRange: LogicalRange | null): void {
    this.priceAxisLabels?.setVisibleLogicalRange(logicalRange);
  }

  public invalidate(): void {
    this.priceAxisLabels?.invalidate();
    this.refreshPriceScaleControls();
  }

  public setPriceScaleSideVisible(side: PriceScaleSide, visible: boolean): void {
    if (side === Direction.Left) {
      this.leftPriceScaleVisible = visible;
    } else {
      this.rightPriceScaleVisible = visible;
    }

    this.panesMap.forEach((pane) => {
      pane.getPriceScale(side).setVisible(visible);
    });
  }

  public getPaneById(id: number): Pane | undefined {
    return this.panesMap.get(id);
  }

  public getDrawingsSnapshot(): DrawingsManagerSnapshot {
    return this.mainPane.getDrawingsSnapshot();
  }

  public setDrawingsSnapshot(snapshot: DrawingsManagerSnapshot): void {
    this.mainPane.setDrawingsSnapshot(snapshot);
  }

  public getPanes(): Map<number, Pane> {
    return this.panesMap;
  }

  public getMainPane = (): Pane => {
    return this.mainPane;
  };

  public addPane(dataSource?: DataSource, paneId?: number, initialPriceScales?: PriceScaleSnapshot[]): Pane {
    const id = paneId ?? this.nextPaneId++;

    this.nextPaneId = Math.max(this.nextPaneId, id + 1);

    const pane = new Pane({
      ...this.sharedPaneParams,
      id,
      isMainPane: false,
      dataSource: dataSource ?? null,
      basedOn: dataSource ? undefined : this.mainPane,
      onDelete: () => this.destroyPane(id),
      initialPriceScales,
      onPriceScaleStateChange: this.handlePriceScaleStateChange,
      leftPriceScaleVisible: this.leftPriceScaleVisible,
      rightPriceScaleVisible: this.rightPriceScaleVisible,
    });

    this.panesMap.set(id, pane);
    this.syncPaneContainers();
    this.priceAxisLabels?.invalidate();

    return pane;
  }

  public resetPriceScalesAutoScale(): void {
    this.panesMap.forEach((pane) => {
      pane.resetPriceScalesAutoScale();
    });
  }

  public getDrawingsManager(): DrawingsManager {
    // todo: temp
    return this.mainPane.getDrawingManager();
  }

  public getSnapshot(): PaneSnapshot[] {
    const snapshot: PaneSnapshot[] = [];

    this.panesMap.forEach((pane) => {
      snapshot.push(pane.getSnapshot());
    });

    return snapshot;
  }

  public destroy(): void {
    this.priceAxisLabels?.destroy();
    this.priceAxisLabels = null;

    this.panesMap.forEach((pane) => {
      pane.destroy();
    });

    this.panesMap.clear();
  }

  private refreshPriceScaleControls(): void {
    this.panesMap.forEach((pane) => {
      pane.refreshPriceScaleControls();
    });
  }

  private destroyPane(id: number): void {
    const pane = this.panesMap.get(id);

    if (!pane) {
      return;
    }

    const paneIndex = pane.paneIndex();

    this.panesMap.delete(id);
    pane.destroy();

    if (paneIndex >= 0) {
      this.sharedPaneParams.lwcChart.removePane(paneIndex);
    }

    this.syncPaneContainers();
    this.priceAxisLabels?.invalidate();
  }

  private syncPaneContainers(): void {
    this.panesMap.forEach((pane) => {
      pane.schedulePaneContainerSync();
    });
  }

  private handlePriceScaleStateChange = (): void => {
    this.priceAxisLabels?.invalidate();
  };
}