/**
 * 财务表格共享主题配置
 *
 * 用于统一 BalanceSheetTable、IncomeStatementTable、CashflowTable 等表格组件的主题样式
 */

import type { ThemeConfig } from 'antd';

/** Ant Design 黑金主题配置 */
export const BLACK_GOLD_TABLE_THEME: ThemeConfig = {
  token: {
    colorBgContainer: 'transparent',
    colorText: '#E2E8F0',
    colorTextHeading: '#D4AF37',
    colorBorderSecondary: 'rgba(212, 175, 55, 0.2)',
  },
  components: {
    Table: {
      headerBg: 'rgba(26, 32, 44, 0.8)',
      headerColor: '#D4AF37',
      rowHoverBg: 'rgba(212, 175, 55, 0.1)',
      borderColor: 'rgba(212, 175, 55, 0.15)',
      cellPaddingBlock: 6,
      cellPaddingInline: 8,
      // 表头紧凑样式
      headerSplitColor: 'transparent',
    },
  },
};

/**
 * 生成表格样式 CSS
 * @param className 表格容器的 className
 */
export const getTableStyles = (className: string): string => `
  .${className} .ant-table {
    background: transparent !important;
  }
  .${className} .ant-table-thead > tr > th {
    background: rgba(26, 32, 44, 0.8) !important;
    color: #D4AF37 !important;
    border-bottom: 1px solid rgba(212, 175, 55, 0.3) !important;
    font-weight: 600;
    font-size: 13px;
    padding: 4px 8px !important;
    margin: 0 !important;
  }
  .${className} .ant-table-thead > tr {
    margin: 0 !important;
  }
  .${className} .ant-table-header {
    margin: 0 !important;
    padding: 0 !important;
  }
  .${className} .ant-table-tbody > tr > td {
    border-bottom: 1px solid rgba(212, 175, 55, 0.1) !important;
    color: #E2E8F0;
    font-size: 12px;
  }
  .${className} .ant-table-tbody > tr:hover > td {
    background: rgba(212, 175, 55, 0.08) !important;
  }
  .${className} .ant-table-tbody > tr.total-row > td {
    background: rgba(212, 175, 55, 0.15) !important;
    font-weight: 600;
  }
  .${className} .ant-table-tbody > tr.section-header > td {
    background: rgba(212, 175, 55, 0.08) !important;
    font-weight: 600;
    color: #D4AF37;
  }
  .${className} .ant-table-cell-fix-left,
  .${className} .ant-table-cell-fix-right {
    background: #1A202C !important;
  }
  .${className} .ant-table-tbody > tr:hover .ant-table-cell-fix-left,
  .${className} .ant-table-tbody > tr:hover .ant-table-cell-fix-right {
    background: rgba(26, 32, 44, 0.95) !important;
  }
  .${className} .positive-change {
    color: #E53E3E;
  }
  .${className} .negative-change {
    color: #48BB78;
  }
  .${className} .ant-table-placeholder {
    background: transparent !important;
  }
  .${className} .ant-empty-description {
    color: #A0AEC0;
  }
`;

/**
 * 计算同比变化（YoY）
 * @param data 数据数组
 * @param currentValue 当前值
 * @param currentPeriod 当前期间
 * @param path 数据路径
 * @param getValueByPath 获取路径值的函数
 */
export const calculateYoY = <T extends { period: string }>(
  data: T[],
  currentValue: number | undefined,
  currentPeriod: string,
  path: string,
  getValueByPath: (item: T, path: string) => number | undefined
): number | null => {
  if (currentValue === undefined || currentValue === null) return null;

  const currentDate = new Date(currentPeriod);
  const lastYearPeriod = data.find((item) => {
    const date = new Date(item.period);
    return (
      date.getFullYear() === currentDate.getFullYear() - 1 &&
      date.getMonth() === currentDate.getMonth()
    );
  });

  if (!lastYearPeriod) return null;

  const lastYearValue = getValueByPath(lastYearPeriod, path);
  if (lastYearValue === undefined || lastYearValue === 0) return null;

  return ((currentValue - lastYearValue) / Math.abs(lastYearValue)) * 100;
};