import { col } from '../csv.js';
import {
  FINANCIAL_COLORS, PALETTE, FONT, axisCommon, standalonePeriodAxis, titleStyle, standardLegend,
  financialViewDisclosure, financialViewLabel,
  lineDataWithSafeLabels,
  lineSeries, footnote, watermarks, LAYOUT,
} from '../theme.js';

/** 泡泡玛特三大现金流：展示经营造血、投资投入与筹资变化。 */
export function cashflowCompositionChart(rows, { width, height, view = 'all' }) {
  const barWidth = view === 'all' ? 10 : view === 'halfyear' ? 18.2 : 26;
  const netCashIncrease = lineDataWithSafeLabels(rows, {
    lineKey: 'net_cash_increase',
    barKeys: ['operating_cash_flow', 'investing_cash_flow', 'financing_cash_flow'],
  });

  return {
    backgroundColor: '#fff',
    title: {
      ...titleStyle,
      text: `泡泡玛特三大现金流与现金净增加（${financialViewLabel(view)}）`,
      subtext: ['单位：亿元；正值为流入，负值为流出', financialViewDisclosure(view)].filter(Boolean).join('\n'),
    },
    // 不手工指定 icon，让 ECharts 按系列类型生成：柱为矩形、折线为短线 + 空心圆。
    legend: standardLegend(['经营活动现金流', '投资活动现金流', '筹资活动现金流', '现金净增加']),
    grid: { left: 78, right: 42, top: LAYOUT.gridTop, bottom: 90 },
    tooltip: {
      trigger: 'axis',
      axisPointer: { type: 'shadow' },
      textStyle: { fontFamily: FONT },
      valueFormatter: (value) => `${value.toFixed(1)} 亿元`,
    },
    xAxis: { ...standalonePeriodAxis, data: col(rows, 'period') },
    yAxis: {
      ...axisCommon,
      type: 'value',
      name: '金额（亿元）',
      nameLocation: 'middle',
      nameGap: 52,
      nameTextStyle: { color: PALETTE.grey, fontSize: 13, fontFamily: FONT },
    },
    series: [
      { name: '经营活动现金流', type: 'bar', data: col(rows, 'operating_cash_flow'), barWidth, itemStyle: { color: FINANCIAL_COLORS.operatingCashFlow } },
      { name: '投资活动现金流', type: 'bar', data: col(rows, 'investing_cash_flow'), barWidth, itemStyle: { color: FINANCIAL_COLORS.investingCashFlow } },
      { name: '筹资活动现金流', type: 'bar', data: col(rows, 'financing_cash_flow'), barWidth, itemStyle: { color: FINANCIAL_COLORS.financingCashFlow } },
      {
        ...lineSeries({
          name: '现金净增加',
          data: netCashIncrease,
          color: FINANCIAL_COLORS.netCashIncrease,
          formatter: (p) => p.value.toFixed(1),
          width: 3,
        }),
        labelLayout: { moveOverlap: 'shiftY', hideOverlap: true },
        z: 10,
      },
    ],
    graphic: [
      ...watermarks(width, height),
      footnote('数据来源：泡泡玛特合并现金流量表；H2为单独半年 | @Joey知行记'),
    ],
  };
}