import { col } from '../csv.js';
import {
  PALETTE, FONT, axisCommon, periodAxis, titleStyle, legendStyle,
  lineSeries, footnote, watermarks, LAYOUT,
} from '../theme.js';

/** 泡泡玛特营运资本效率：存货、应收、应付与现金转换周期。 */
export function workingCapitalDaysChart(rows, { width, height }) {
  const series = [
    { key: 'inventory_days', name: '存货周转天数', color: PALETTE.orange, width: 2.4 },
    { key: 'receivable_days', name: '应收周转天数', color: PALETTE.blue, width: 2.2 },
    { key: 'payable_days', name: '应付周转天数', color: PALETTE.purple, width: 2.2 },
    { key: 'cash_conversion_cycle', name: '现金转换周期', color: PALETTE.red, width: 3.2 },
  ];

  return {
    backgroundColor: '#fff',
    title: {
      ...titleStyle,
      text: '泡泡玛特营运资本效率',
      subtext: '现金转换周期 = 存货周转天数 + 应收周转天数 − 应付周转天数',
    },
    legend: { ...legendStyle, top: LAYOUT.legendTop, data: series.map((item) => item.name) },
    grid: { left: 78, right: 42, top: LAYOUT.gridTop, bottom: 90 },
    tooltip: {
      trigger: 'axis',
      textStyle: { fontFamily: FONT },
      valueFormatter: (value) => `${value.toFixed(1)} 天`,
    },
    xAxis: { ...periodAxis, data: col(rows, 'period') },
    yAxis: {
      ...axisCommon,
      type: 'value',
      name: '天数',
      nameLocation: 'middle',
      nameGap: 42,
      nameTextStyle: { color: PALETTE.grey, fontSize: 13, fontFamily: FONT },
      min: 0,
    },
    series: series.map((item) => ({
      ...lineSeries({
        name: item.name,
        data: col(rows, item.key),
        color: item.color,
        formatter: (p) => p.value.toFixed(0),
        width: item.width,
      }),
      label: item.key === 'cash_conversion_cycle'
        ? { show: true, color: item.color, fontFamily: FONT, fontSize: 11, formatter: (p) => `${p.value.toFixed(0)}天` }
        : { show: false },
      z: item.key === 'cash_conversion_cycle' ? 10 : 1,
    })),
    graphic: [
      ...watermarks(width, height),
      footnote('数据来源：泡泡玛特财务指标（合并报表）| @思考的Joey'),
    ],
  };
}