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

// 同比虚线用柱色的同色系深色变体：压在柱体和彼此之间都能区分，色相仍与柱对应
const REGIONS = [
  { key: 'china', name: '中国（含港澳台）', color: '#71AD81', lineColor: PALETTE.green },
  // 色板没有深棕，按 brown 加深
  { key: 'overseas', name: '海外', color: PALETTE.brown, lineColor: '#4A3117' },
];

function yoyByPeriod(rows, key) {
  const values = new Map(rows.map((row) => [row.period, row[key]]));
  return rows.map((row) => {
    const year = Number(row.period.slice(0, 4));
    const prior = values.get(`${year - 1}${row.period.slice(4)}`);
    return Number.isFinite(row[key]) && Number.isFinite(prior) && prior !== 0
      ? (row[key] / prior - 1) * 100
      : null;
  });
}

/** 中国与海外机器人商店单店收入：收入 ÷ 期初、期末平均机器人商店数。 */
export function robotStoreRevenueChart(rows, { width, height, view = 'all' }) {
  const values = REGIONS.flatMap((region) => col(rows, `${region.key}_per_store`)).filter(Number.isFinite);
  const yMax = Math.ceil(Math.max(...values) / 50) * 50;
  const yoySeries = REGIONS.map((region) => ({ ...region, data: yoyByPeriod(rows, `${region.key}_per_store`) }));
  const yoyValues = yoySeries.flatMap((region) => region.data).filter(Number.isFinite);
  const yoyMin = Math.min(0, Math.floor(Math.min(...yoyValues) / 50) * 50);
  const yoyMax = Math.max(50, Math.ceil(Math.max(...yoyValues) / 50) * 50);
  const legendItems = REGIONS.flatMap((region) => [region.name, `${region.name}同比`]);

  return {
    backgroundColor: '#fff',
    title: {
      ...titleStyle,
      text: `泡泡玛特机器人商店单店收入（${financialViewLabel(view)}）`,
      subtext: '柱状为单店收入；深色虚线为对应柱的单店收入同比；H2为下半年单期',
    },
    legend: standardLegend(legendItems, { itemGap: 18 }),
    grid: { left: 78, right: 42, top: LAYOUT.gridTop, bottom: 90 },
    tooltip: {
      trigger: 'axis',
      axisPointer: { type: 'shadow' },
      textStyle: { fontFamily: FONT },
      formatter: (params) => `<b>${params[0].axisValue}</b><br/>${params
        .filter((item) => Number.isFinite(item.value))
        .map((item) => `${item.marker}${item.seriesName}: ${Number(item.value).toFixed(1)}${item.seriesName.endsWith('同比') ? '%' : ' 万元/店'}`)
        .join('<br/>')}`,
    },
    xAxis: { ...standalonePeriodAxis, data: col(rows, 'period') },
    yAxis: [
      {
        ...axisCommon,
        type: 'value',
        name: '单店收入（万元/店）',
        nameLocation: 'middle',
        nameGap: 58,
        nameTextStyle: { color: PALETTE.grey, fontSize: 13, fontFamily: FONT },
        min: 0,
        max: yMax,
        interval: yMax / 5,
      },
      {
        ...axisCommon,
        type: 'value',
        name: '单店收入同比（%）',
        nameLocation: 'middle',
        nameGap: 60,
        nameRotate: -90,
        nameTextStyle: { color: PALETTE.grey, fontSize: 13, fontFamily: FONT },
        min: yoyMin,
        max: yoyMax,
        interval: 50,
        axisLabel: { ...axisCommon.axisLabel, formatter: '{value}%' },
        splitLine: { show: false },
      },
    ],
    series: [
      ...REGIONS.map((region) => ({
        ...barSeries({
          name: region.name,
          data: col(rows, `${region.key}_per_store`),
          color: region.color,
          barWidth: view === 'all' ? 28 : 52,
          formatter: (point) => point.value.toFixed(0),
        }),
        emphasis: { focus: 'series' },
      })),
      ...yoySeries.map((region) => ({
        ...lineSeries({
          name: `${region.name}同比`,
          data: region.data,
          color: region.lineColor,
          width: 2,
          formatter: (point) => `${point.value.toFixed(0)}%`,
        }),
        yAxisIndex: 1,
        lineStyle: { color: region.lineColor, width: 2, type: 'dashed' },
        z: 10,
      })),
    ],
    graphic: [
      ...watermarks(width, height),
      footnote('数据来源：泡泡玛特历年公告；海外收入=亚太+美洲+欧洲及其他的机器人商店收入；H2收入=全年−H1\n2024H1海外期末机器人商店数未披露，相关单店收入留空 | @Joey知行记'),
    ],
  };
}