---

import { MoexChart, Timeframes } from 'moex-chart';

// eslint-disable-next-line import/no-unresolved -- MOEX_CHART
import { CompareManager } from 'moex-chart/dist/types/core/CompareManager';
import { useEffect, useRef, useState } from 'react';

import { useChangeProperties, useSelectProperties } from '@modules/widgetProperties';
import { ChartIndicativeData, ChartProps } from '@widgets/Chart/types';

import { MOEX_CHART_CONFIG } from '../constants';
import { dataSourceProvider, DataSourceProvider } from '../dataSourceProvide';

import type { IMoexChart } from 'moex-chart';

type TUseMoexChartProps = {
  symbol: string;
  indicativeData: ChartIndicativeData | undefined;
};

export const useMoexChart = ({ symbol, indicativeData }: TUseMoexChartProps) => {
  const moexChartState = useSelectProperties((wProps: Partial<ChartProps>) => wProps.moexChartState);

  const { updateProperties } = useChangeProperties<ChartProps>();

  const [isCompareOpen, setIsCompareOpen] = useState(false);

  const containerRef = useRef<HTMLDivElement | null>(null);
  const chartRef = useRef<MoexChart | null>(null);
  const compareManagerRef = useRef<null | CompareManager>(null);

  const timeframeRef = useRef<Timeframes | undefined>(moexChartState?.tf);
  const savedDataRef = useRef<string | undefined>(moexChartState?.savedData);
  const updateTimeframeRef = useRef<((tf: Timeframes) => void) | null>(null);

  useEffect(() => {
    timeframeRef.current = moexChartState?.tf;
    savedDataRef.current = moexChartState?.savedData;
  }, [moexChartState]);

  updateTimeframeRef.current = (tf: Timeframes) => {
    if (timeframeRef.current === tf) {
      return;
    }

    timeframeRef.current = tf;

    updateProperties((state) => {
      state.moexChartState = {
        ...state.moexChartState,
        tf,
      };
    });
  };

  const saveSnapshot = () => {
    const snapshot = chartRef.current?.getSnapshot();

    if (!snapshot) {
      return;
    }

    const savedData = JSON.stringify(snapshot);
    savedDataRef.current = savedData;

    updateProperties((state) => {
      state.moexChartState = {
        ...state.moexChartState,
        tf: timeframeRef.current || Timeframes['1m'],
        savedData,
      };
    });
  };

  const applySnapshot = () => {
    if (!savedDataRef.current || !chartRef.current) {
      return;
    }

    const savedSnapshot = JSON.parse(savedDataRef.current) as IMoexChart['snapshot'];
    const timeframe = timeframeRef.current || Timeframes['1m'];

    chartRef.current.setSnapshot({
      ...savedSnapshot,
      charts: savedSnapshot.charts.map((chartSnapshot) => ({
        ...chartSnapshot,
        symbol,
        timeframe,
      })),
    });

    compareManagerRef.current = chartRef.current.getCompareManager();
  };

  useEffect(() => {
    const container = containerRef.current;

    if (!container) {
      return undefined;
    }

    const timeframe = timeframeRef.current || Timeframes['1m'];
    const savedSnapshot = savedDataRef.current
      ? (JSON.parse(savedDataRef.current) as IMoexChart['snapshot'])
      : MOEX_CHART_CONFIG.snapshot;

    const chart = new MoexChart({
      ...MOEX_CHART_CONFIG,
      container,
      snapshot: {
        ...savedSnapshot,
        charts: savedSnapshot.charts.map((chartSnapshot) => ({
          ...chartSnapshot,
          symbol,
          timeframe,
        })),
      },
      chartCollectionPreset: {
        ...MOEX_CHART_CONFIG.chartCollectionPreset,
        openCompareModal: () => setIsCompareOpen(true),
        getDataSource: DataSourceProvider.getDataSource(indicativeData, (tf) => {
          updateTimeframeRef.current?.(tf);
        }),
        startRealtime: (getSymbols, getTimeframe, update) =>
          dataSourceProvider.startRealtime({
            getSymbols,
            getTimeframe,
            update,
          }),
      },
    });

    chartRef.current = chart;
    compareManagerRef.current = chart.getCompareManager();

    return () => {
      chartRef.current = null;
      compareManagerRef.current = null;
      chart.destroy();
    };
  }, [symbol, indicativeData]);

  return {
    containerRef,
    isCompareOpen,
    compareManagerRef,
    setIsCompareOpen,
    saveSnapshot,
    applySnapshot,
    hasSavedSnapshot: Boolean(moexChartState?.savedData),
  };
};