---

import {
  DeepPartial,
  HistogramData,
  LineData,
  LineWidth,
  PriceScaleOptions,
  SeriesDataItemTypeMap,
  SeriesPartialOptionsMap,
  SeriesType,
  Time,
  WhitespaceData,
} from 'lightweight-charts';

import { IndicatorDataFormatter, indicatorLabelById } from '@src/core/Indicators';
import { ChartSeriesType } from '@src/types/chart';

export enum IndicatorsIds {
  Volume = 'vol',
  SMA = 'sma',
  EMA = 'ema',
  MACD = 'macd',
}

export type IndicatorData = HistogramData<Time> | LineData<Time> | WhitespaceData<Time>;

export type IndicatorType = 'SMA' | 'EMA' | 'RSI' | 'OHLC' | 'VOL';

export type IndicatorSetting = NumberIndicatorSetting | SelectIndicatorSetting;
export type IndicatorSettings = Record<string, string | number>;

export type IndicatorLabel = (typeof indicatorLabelById)[IndicatorsIds];

export interface IndicatorStateConfig {
  type: IndicatorType;
  id?: IndicatorsIds;
  period?: number;
  color?: string;
  lineWidth?: LineWidth;
  visible?: boolean;
  params?: Record<string, any>;
  pane?: string;
}

interface BaseIndicatorSetting {
  key: string;
  label: string;
}

interface NumberIndicatorSetting extends BaseIndicatorSetting {
  type: 'number';
  defaultValue: number;
  min?: number;
  max?: number;
  allowNegative?: boolean;
}

interface SelectIndicatorSetting extends BaseIndicatorSetting {
  type: 'select';
  defaultValue: string;
  options: { label: string; value: string }[];
}

export interface IndicatorSerie {
  id: string;
  name: ChartSeriesType;
  seriesOptions?: SeriesPartialOptionsMap[ChartSeriesType];
  priceScaleOptions?: DeepPartial<PriceScaleOptions>;
  priceScaleId?: string;
  dataFormatter?<T extends SeriesType>(params: IndicatorDataFormatter<T>): SeriesDataItemTypeMap<Time>[T][];
}

export interface IndicatorConfig {
  series: IndicatorSerie[];
  settings?: IndicatorSetting[];
  newPane?: boolean;
}