import {
  PALETTE, FONT, titleStyle, footnote, watermarks,
LAYOUT, } from '../theme.js';

/**
 * 泡泡玛特区域渠道同比增速图（2026H1 vs 2025H1）
 * 垂直条形图，每个渠道使用统一颜色
 */
export function regionChannelYoyChart(rows, { width, height }) {
  // 按区域和渠道重组数据
  const regions = ['中国', '海外', '亚太', '美洲', '欧洲及其他'];
  const channels = ['线下渠道', '线上渠道', '批发及其他'];

  // 构建数据映射
  const dataMap = {};
  rows.forEach(row => {
    const key = `${row.region}_${row.channel}`;
    dataMap[key] = row.yoy;
  });

  // 为每个渠道构建数据系列
  const seriesData = channels.map(channel => {
    return regions.map(region => {
      const key = `${region}_${channel}`;
      return dataMap[key] || 0;
    });
  });

  // 为每个渠道定义统一的颜色
  const channelColors = {
    '线下渠道': PALETTE.navy,
    '线上渠道': PALETTE.coral,
    '批发及其他': PALETTE.sage,
  };

  return {
    backgroundColor: '#fff',
    title: {
      ...titleStyle,
      text: '泡泡玛特区域渠道同比增速（2026H1 vs 2025H1）',
      subtext: '各区域渠道同比增速对比',
      top: 18,
    },
    legend: {
      data: channels.map(name => ({ name, icon: 'rect' })),  // 全部柱状图
      top: LAYOUT.legendTop,
      itemGap: 32,
      textStyle: { fontFamily: FONT, fontSize: 13 },
    },
    tooltip: {
      trigger: 'axis',
      axisPointer: { type: 'shadow' },
      textStyle: { fontFamily: FONT },
      formatter: (params) => {
        let result = `<b>${params[0].axisValue}</b><br/>`;
        params.forEach(p => {
          const value = p.value;
          const sign = value >= 0 ? '+' : '';
          result += `${p.marker}${p.seriesName}: ${sign}${value.toFixed(1)}%<br/>`;
        });
        return result;
      },
    },
    grid: {
      left: 80,
      right: 60,
      top: 145,
      bottom: 90,
      containLabel: false,
    },
    xAxis: {
      type: 'category',
      data: regions,
      axisLine: {
        show: true,
        lineStyle: { color: '#333', width: 2 }
      },
      axisTick: { show: false },
      axisLabel: {
        fontFamily: FONT,
        fontSize: 12,
        color: '#333',
      },
    },
    yAxis: {
      type: 'value',
      axisLine: { show: false },
      axisTick: { show: false },
      splitLine: {
        show: true,
        lineStyle: { color: '#e8e8e8', width: 1 }
      },
      axisLabel: {
        formatter: '{value}%',
        fontFamily: FONT,
        fontSize: 12,
        color: '#8c8c8c',
      },
    },
    series: channels.map((channel, idx) => ({
      name: channel,
      type: 'bar',
      data: seriesData[idx],
      itemStyle: { color: channelColors[channel] },
      barWidth: 47,
      label: {
        show: true,
        position: 'inside',
        formatter: (params) => {
          const value = params.value;
          const sign = value >= 0 ? '+' : '';
          return `${sign}${value.toFixed(1)}%`;
        },
        fontFamily: FONT,
        fontSize: 12,
        color: '#fff',
        fontWeight: 'bold',
      },
    })),
    graphic: [
      ...watermarks(width, height),
      footnote('数据来源：泡泡玛特财报（2026H1 vs 2025H1同比）| @思考的Joey'),
    ],
  };
}