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

/**
 * 泡泡玛特利润流向桑基图（2026H1）
 * 从营业收入到非GAAP归母净利润的完整流程
 */
export function sankeyChart(rows, { width, height }) {
  // 从 CSV 构建桑基图的 links 数据
  const links = rows.map(row => ({
    source: row.source,
    target: row.target,
    value: row.value,
  }));

  // 定义节点颜色
  const nodeColors = {
    '营业收入': PALETTE.navy,
    '营业成本': PALETTE.grey,
    '毛利': PALETTE.sage,
    '销售费用': PALETTE.orange,
    '管理费用': PALETTE.purple,
    '财务费用': PALETTE.brown,
    '营业利润': PALETTE.green,
    '投资收益': PALETTE.blue,
    '公允价值变动': PALETTE.blue,
    '其他收入': PALETTE.blue,
    '利润总额': PALETTE.sage,
    '所得税费用': PALETTE.grey,
    '净利润': PALETTE.green,
    '少数股东损益': PALETTE.grey,
    '归母净利润': PALETTE.coral,
    '非GAAP调整项': PALETTE.blue,
    '非GAAP归母净利润': PALETTE.red,
  };

  return {
    backgroundColor: '#fff',
    title: {
      ...titleStyle,
      text: '泡泡玛特利润流向分析（2026H1）',
      subtext: '从营业收入到非GAAP归母净利润的完整流程，单位：亿元',
      top: 18,
    },
    tooltip: {
      trigger: 'item',
      triggerOn: 'mousemove',
      textStyle: { fontFamily: FONT, fontSize: 13 },
      formatter: (params) => {
        if (params.dataType === 'edge') {
          return `${params.data.source} → ${params.data.target}<br/><b>${params.data.value.toFixed(2)} 亿元</b>`;
        } else {
          return `<b>${params.name}</b><br/>总额: ${params.value.toFixed(2)} 亿元`;
        }
      },
    },
    series: [
      {
        type: 'sankey',
        layout: 'none',
        emphasis: {
          focus: 'adjacency',
        },
        nodeAlign: 'left',
        layoutIterations: 0,
        nodeWidth: 26,
        nodeGap: 14,
        left: 120,
        right: 180,
        top: 110,
        bottom: 90,
        data: Object.keys(nodeColors).map(name => ({
          name,
          itemStyle: { color: nodeColors[name] },
        })),
        links,
        label: {
          color: PALETTE.ink,
          fontFamily: FONT,
          fontSize: 12,
          fontWeight: 'normal',
          formatter: (params) => {
            // 给每个节点标注名称和数值
            return `{name|${params.name}}\n{value|${params.value.toFixed(2)}亿}`;
          },
          rich: {
            name: {
              fontSize: 12,
              fontFamily: FONT,
              color: PALETTE.ink,
            },
            value: {
              fontSize: 11,
              fontFamily: FONT,
              color: PALETTE.grey,
              fontWeight: 'bold',
            },
          },
        },
        lineStyle: {
          color: 'gradient',
          curveness: 0.5,
          opacity: 0.3,
        },
        levels: [
          {
            depth: 0,
            label: { position: 'left' },
          },
          {
            depth: 1,
            label: { position: 'right' },
          },
          {
            depth: 2,
            label: { position: 'right' },
          },
          {
            depth: 3,
            label: { position: 'right' },
          },
          {
            depth: 4,
            label: { position: 'right' },
          },
          {
            depth: 5,
            label: { position: 'right' },
          },
        ],
      },
    ],
    graphic: [
      ...watermarks(width, height),
      footnote('数据来源：泡泡玛特财报 | @思考的Joey'),
    ],
  };
}