/**
 * 보조지표 일괄 설정 — Main 16종 + 전체 보조지표, 검색 필터
 */
import React, { useState, useEffect, useCallback, useRef, useMemo } from 'react';
import { useDraggablePanel } from '../hooks/useDraggablePanel';
import type { IndicatorConfig } from '../types';
import type { PlotDef, HLineDef } from '../utils/indicatorRegistry';
import {
  buildAllIndicatorDraftMap,
  applyAllDraftToChart,
  allDraftListFromMap,
  indicatorTypesOnChart,
  type MainIndicatorDraftMap,
} from '../utils/indicatorMainConfig';
import { resetConfigToDefaults } from '../utils/indicatorSettingsEditor';
import {
  getSettingsIndicatorTypes,
  filterSettingsIndicatorTypes,
  partitionFilteredTypes,
} from '../utils/indicatorSettingsList';
import IndicatorSettingsListSearch from './IndicatorSettingsListSearch';
import IndicatorSettingsListRow from './IndicatorSettingsListRow';
import type { IchimokuCloudColors } from '../utils/ichimokuConfig';
import { MAIN_INDICATOR_TYPES } from '../utils/indicatorMainTab';

export interface IndicatorBulkSettingsModalProps {
  open: boolean;
  indicators: IndicatorConfig[];
  chartMarket?: string;
  onApply: (result: {
    chartIndicators: IndicatorConfig[];
    allConfigs: IndicatorConfig[];
  }) => void;
  onLiveChartChange: (chartIndicators: IndicatorConfig[]) => void;
  onClose: () => void;
  getParams: (type: string, defaults: Record<string, number | string | boolean>) => Record<string, number | string | boolean>;
  getVisualConfig: (
    type: string,
    defaultPlots?: PlotDef[],
    defaultHlines?: HLineDef[],
  ) => { plots: PlotDef[]; hlines: HLineDef[]; cloudColors?: IchimokuCloudColors };
}

const ALL_TYPES = getSettingsIndicatorTypes();

const IndicatorBulkSettingsModal: React.FC<IndicatorBulkSettingsModalProps> = ({
  open,
  indicators,
  chartMarket = '',
  onApply,
  onLiveChartChange,
  onClose,
  getParams,
  getVisualConfig,
}) => {
  const [draftMap, setDraftMap] = useState<MainIndicatorDraftMap>({});
  const [expandedTypes, setExpandedTypes] = useState<Set<string>>(new Set());
  const [search, setSearch] = useState('');
  const {
    panelRef: dialogRef,
    dragging,
    onHeaderPointerDown, headerTouchStyle,
    panelStyle,
    headerCursor,
  } = useDraggablePanel({ centerOnMount: true });

  const onChartTypes = useMemo(() => indicatorTypesOnChart(indicators), [indicators]);

  const filtered = useMemo(
    () => filterSettingsIndicatorTypes(ALL_TYPES, search),
    [search],
  );
  const { main: filteredMain, other: filteredOther } = useMemo(
    () => partitionFilteredTypes(filtered),
    [filtered],
  );

  const prevOpenRef = useRef(false);
  useEffect(() => {
    if (open && !prevOpenRef.current) {
      setDraftMap(buildAllIndicatorDraftMap(indicators, getParams, getVisualConfig));
      setExpandedTypes(new Set());
      setSearch('');
    }
    prevOpenRef.current = open;
  }, [open, indicators, getParams, getVisualConfig]);

  const setTypeEnabled = useCallback((type: string, enabled: boolean) => {
    const next = new Set(onChartTypes);
    if (enabled) next.add(type);
    else next.delete(type);
    onLiveChartChange(applyAllDraftToChart(indicators, draftMap, next));
  }, [onChartTypes, indicators, draftMap, onLiveChartChange]);

  const updateType = useCallback((type: string, updated: IndicatorConfig) => {
    setDraftMap(prev => ({ ...prev, [type]: updated }));
  }, []);

  const toggleExpand = useCallback((type: string) => {
    setExpandedTypes(prev => {
      const next = new Set(prev);
      if (next.has(type)) next.delete(type);
      else next.add(type);
      return next;
    });
  }, []);

  const handleResetAll = useCallback(() => {
    if (!window.confirm('목록에 있는 모든 보조지표 설정을 기본값으로 되돌릴까요?')) return;
    setDraftMap(prev => {
      const next = { ...prev };
      for (const type of ALL_TYPES) {
        const cfg = next[type];
        if (!cfg) continue;
        const reset = resetConfigToDefaults(cfg);
        const active = indicators.find(i => i.type === type);
        next[type] = {
          ...reset,
          id: onChartTypes.has(type) && active ? active.id : `template_${type}`,
        };
      }
      return next;
    });
  }, [indicators, onChartTypes]);

  const handleApply = useCallback(() => {
    const allConfigs = allDraftListFromMap(draftMap);
    const chartIndicators = applyAllDraftToChart(indicators, draftMap, onChartTypes);
    onApply({ chartIndicators, allConfigs });
    onClose();
  }, [draftMap, onChartTypes, indicators, onApply, onClose]);

  const renderRows = (types: string[]) => types.map(type => {
    const cfg = draftMap[type];
    if (!cfg) return null;
    return (
      <IndicatorSettingsListRow
        key={type}
        type={type}
        config={cfg}
        enabled={onChartTypes.has(type)}
        chartMarket={chartMarket}
        expanded={expandedTypes.has(type)}
        variant="bulk"
        onToggleExpand={() => toggleExpand(type)}
        onToggleEnabled={on => setTypeEnabled(type, on)}
        onChange={updated => updateType(type, updated)}
      />
    );
  });

  if (!open) return null;

  return (
    <div className="ibsm-overlay" onMouseDown={e => { if (e.target === e.currentTarget) onClose(); }}>
      <div
        ref={dialogRef}
        className="ibsm-dialog ibsm-dialog-wide"
        onMouseDown={e => e.stopPropagation()}
        style={{
          ...panelStyle,
          zIndex: 5001,
          cursor: dragging ? 'grabbing' : undefined,
        }}
      >
        <div
          className="gc-popup-header ibsm-header"
          onPointerDown={onHeaderPointerDown}
          style={{ cursor: headerCursor, ...headerTouchStyle }}
        >
          <span className="gc-popup-title ibsm-header-title">📊 보조지표 설정</span>
          <div className="ibsm-header-actions">
            <button type="button" className="ibsm-icon-btn" onClick={handleResetAll} title="전체 기본값">↻</button>
            <button type="button" className="gc-popup-close ibsm-icon-btn" onClick={onClose} title="닫기">✕</button>
          </div>
        </div>

        <IndicatorSettingsListSearch
          value={search}
          onChange={setSearch}
          totalCount={ALL_TYPES.length}
          filteredCount={filtered.length}
          className="ibsm-search-block"
        />

        <p className="ibsm-hint">
          <strong>Main</strong> 탭 {MAIN_INDICATOR_TYPES.length}종을 상단에 두었습니다. 우측 스위치로 차트에 즉시 추가·제거하고,
          ▼에서 파라미터·색상을 편집할 수 있습니다. <strong>적용</strong> 시 DB 기본값에 저장됩니다.
        </p>

        <div className="ibsm-body">
          {filtered.length === 0 ? (
            <div className="no-results ind-settings-no-results">
              &apos;{search}&apos; 검색 결과 없음
            </div>
          ) : (
            <>
              {filteredMain.length > 0 && (
                <section className="ind-settings-section">
                  <h3 className="ind-settings-section-title">
                    Main 보조지표 <span className="ind-settings-section-count">{filteredMain.length}</span>
                  </h3>
                  {renderRows(filteredMain)}
                </section>
              )}
              {filteredOther.length > 0 && (
                <section className="ind-settings-section">
                  <h3 className="ind-settings-section-title">
                    기타 보조지표 <span className="ind-settings-section-count">{filteredOther.length}</span>
                  </h3>
                  {renderRows(filteredOther)}
                </section>
              )}
            </>
          )}
        </div>

        <div className="ibsm-footer">
          <button type="button" className="ism-btn-cancel" onClick={onClose}>취소</button>
          <button type="button" className="ism-btn-ok" onClick={handleApply}>적용</button>
        </div>
      </div>
    </div>
  );
};

export default IndicatorBulkSettingsModal;