/**
 * 图表辅助函数
 * 用于处理异动标注等图表相关逻辑
 */

/**
 * 异动类型配置 - 科技感配色方案
 */
export const ALERT_TYPE_CONFIG = {
  surge_up: {
    label: '急涨',
    color: '#ff4d4f',
    gradient: ['#ff4d4f', '#ff7a45'],
    icon: 'TrendingUp',
    bgAlpha: 0.15,
    description: '概念板块出现快速上涨异动',
  },
  surge: {
    label: '异动',
    color: '#ff7a45',
    gradient: ['#ff7a45', '#ffa940'],
    icon: 'Zap',
    bgAlpha: 0.12,
    description: '概念板块出现明显异动信号',
  },
  surge_down: {
    label: '急跌',
    color: '#52c41a',
    gradient: ['#52c41a', '#73d13d'],
    icon: 'TrendingDown',
    bgAlpha: 0.15,
    description: '概念板块出现快速下跌异动',
  },
  volume_surge_up: {
    label: '放量急涨',
    color: '#eb2f96',
    gradient: ['#eb2f96', '#f759ab'],
    icon: 'Activity',
    bgAlpha: 0.15,
    description: '成交量放大伴随价格急涨，资金关注度高',
  },
  shrink_surge_up: {
    label: '缩量急涨',
    color: '#722ed1',
    gradient: ['#722ed1', '#9254de'],
    icon: 'Rocket',
    bgAlpha: 0.15,
    description: '成交量萎缩但价格急涨，筹码锁定良好',
  },
  volume_oscillation: {
    label: '放量震荡',
    color: '#13c2c2',
    gradient: ['#13c2c2', '#36cfc9'],
    icon: 'Waves',
    bgAlpha: 0.12,
    description: '成交量放大但价格震荡，多空分歧加大',
  },
  limit_up: {
    label: '涨停潮',
    color: '#fa541c',
    gradient: ['#fa541c', '#ff7a45'],
    icon: 'Flame',
    bgAlpha: 0.15,
    description: '板块内多只股票涨停，热度极高',
  },
  rank_jump: {
    label: '排名跃升',
    color: '#1890ff',
    gradient: ['#1890ff', '#40a9ff'],
    icon: 'ArrowUpCircle',
    bgAlpha: 0.12,
    description: '概念板块排名快速上升，关注度提升',
  },
  volume_spike: {
    label: '放量异动',
    color: '#faad14',
    gradient: ['#faad14', '#ffc53d'],
    icon: 'BarChart3',
    bgAlpha: 0.12,
    description: '成交量出现突发性放大',
  },
};

/**
 * 指标配置 - 包含详细提示说明
 */
export const METRIC_CONFIG = {
  final_score: {
    label: '综合评分',
    unit: '分',
    tooltip: '综合规则评分和机器学习评分的最终得分，分数越高表示异动信号越强。60分以上值得关注，80分以上为强信号。',
    format: (v) => Math.round(v),
    getColor: (v) => {
      if (v >= 80) return '#ff4d4f';
      if (v >= 60) return '#fa8c16';
      if (v >= 40) return '#faad14';
      return '#8c8c8c';
    },
  },
  rule_score: {
    label: '规则评分',
    unit: '分',
    tooltip: '基于预设规则计算的评分，包括涨跌幅、成交量、涨停数等多维度指标。',
    format: (v) => Math.round(v),
  },
  ml_score: {
    label: 'AI评分',
    unit: '分',
    tooltip: '机器学习模型预测的评分，基于历史数据训练，预测该异动后续表现概率。',
    format: (v) => Math.round(v),
  },
  confirm_ratio: {
    label: '确认率',
    unit: '%',
    tooltip: '异动信号的确认程度。100%表示信号完全确认，数值越高表示异动越稳定、越可靠。低于60%的信号可能是噪音。',
    format: (v) => Math.round(v * 100),
    getColor: (v) => {
      if (v >= 0.8) return '#52c41a';
      if (v >= 0.6) return '#faad14';
      return '#ff4d4f';
    },
  },
  alpha: {
    label: '超额收益',
    unit: '%',
    tooltip: '概念板块相对于大盘的超额涨跌幅（Alpha）。正值表示跑赢大盘，负值表示跑输大盘。该指标反映板块的相对强弱。',
    format: (v) => v?.toFixed(2),
    getColor: (v) => v >= 0 ? '#ff4d4f' : '#52c41a',
    showSign: true,
  },
  alpha_zscore: {
    label: 'Alpha强度',
    unit: 'σ',
    tooltip: 'Alpha的Z-Score标准化值，衡量超额收益的统计显著性。|值|>2表示异常强，|值|>1.5表示较强。正值表示异常上涨，负值表示异常下跌。',
    format: (v) => v?.toFixed(2),
    getColor: (v) => v >= 0 ? '#ff4d4f' : '#52c41a',
    showSign: true,
  },
  amt_zscore: {
    label: '成交额强度',
    unit: 'σ',
    tooltip: '成交额的Z-Score标准化值，衡量当前成交额相对于历史的异常程度。>2表示成交额异常放大，资金活跃度高。',
    format: (v) => v?.toFixed(2),
    getColor: (v) => {
      if (v >= 2) return '#eb2f96';
      if (v >= 1) return '#faad14';
      return '#8c8c8c';
    },
  },
  rank_zscore: {
    label: '排名变化强度',
    unit: 'σ',
    tooltip: '板块排名变化的Z-Score值。正值表示排名上升速度异常，>2表示排名跃升显著。',
    format: (v) => v?.toFixed(2),
    showSign: true,
  },
  momentum_3m: {
    label: '3分钟动量',
    unit: '',
    tooltip: '过去3分钟的价格动量指标，反映短期趋势强度。正值表示上涨动量，负值表示下跌动量。',
    format: (v) => v?.toFixed(3),
    getColor: (v) => v >= 0 ? '#ff4d4f' : '#52c41a',
    showSign: true,
  },
  momentum_5m: {
    label: '5分钟动量',
    unit: '',
    tooltip: '过去5分钟的价格动量指标，比3分钟动量更稳定，过滤掉更多噪音。',
    format: (v) => v?.toFixed(3),
    getColor: (v) => v >= 0 ? '#ff4d4f' : '#52c41a',
    showSign: true,
  },
  limit_up_ratio: {
    label: '涨停占比',
    unit: '%',
    tooltip: '板块内涨停股票数量占总股票数的比例。>10%表示板块热度高，>20%表示涨停潮。',
    format: (v) => Math.round(v * 100),
    getColor: (v) => {
      if (v >= 0.2) return '#ff4d4f';
      if (v >= 0.1) return '#fa8c16';
      if (v >= 0.05) return '#faad14';
      return '#8c8c8c';
    },
  },
};

/**
 * 触发规则配置
 */
export const TRIGGERED_RULES_CONFIG = {
  alpha_moderate: { label: 'Alpha中等', color: '#ff7a45', description: '超额收益达到中等水平' },
  alpha_strong: { label: 'Alpha强', color: '#ff4d4f', description: '超额收益达到强势水平' },
  amt_moderate: { label: '成交额中等', color: '#faad14', description: '成交额异常放大中等' },
  amt_strong: { label: '成交额强', color: '#fa8c16', description: '成交额异常放大明显' },
  limit_up_moderate: { label: '涨停中等', color: '#eb2f96', description: '涨停股票数量适中' },
  limit_up_extreme: { label: '涨停极端', color: '#ff4d4f', description: '涨停股票数量很多' },
  momentum_3m_moderate: { label: '3分钟动量', color: '#1890ff', description: '短期动量信号触发' },
  momentum_3m_strong: { label: '3分钟强动量', color: '#096dd9', description: '短期强动量信号' },
  combo_alpha_amt: { label: 'Alpha+成交额', color: '#722ed1', description: '超额收益和成交额双重确认' },
  combo_alpha_limitup: { label: 'Alpha+涨停', color: '#eb2f96', description: '超额收益和涨停双重确认' },
  early_session: { label: '早盘信号', color: '#13c2c2', description: '开盘30分钟内的异动' },
  'decay:accelerating': { label: '加速中', color: '#52c41a', description: '异动正在加速' },
  'decay:stable': { label: '稳定', color: '#1890ff', description: '异动保持稳定' },
  'decay:fading': { label: '衰减中', color: '#8c8c8c', description: '异动正在衰减' },
};

/**
 * 获取异动标注的配色和符号
 * @param {string} alertType - 异动类型
 * @param {number} importanceScore - 重要性得分
 * @returns {Object} { color, symbol, symbolSize }
 */
export const getAlertStyle = (alertType, importanceScore = 0.5) => {
  const config = ALERT_TYPE_CONFIG[alertType] || ALERT_TYPE_CONFIG.surge;
  const baseSize = 30;
  const sizeBonus = Math.min(importanceScore * 20, 15);

  let symbol = 'pin';
  switch (alertType) {
    case 'surge_up':
    case 'surge':
    case 'volume_surge_up':
    case 'shrink_surge_up':
      symbol = 'triangle';
      break;
    case 'surge_down':
      symbol = 'path://M0,0 L10,0 L5,10 Z';
      break;
    case 'limit_up':
      symbol = 'diamond';
      break;
    case 'rank_jump':
      symbol = 'circle';
      break;
    case 'volume_spike':
    case 'volume_oscillation':
      symbol = 'rect';
      break;
    default:
      symbol = 'pin';
  }

  return {
    color: config.color,
    gradient: config.gradient,
    symbol,
    symbolSize: baseSize + sizeBonus,
  };
};

/**
 * 获取异动类型的显示标签
 * @param {string} alertType - 异动类型
 * @returns {string} 显示标签
 */
export const getAlertTypeLabel = (alertType) => {
  return ALERT_TYPE_CONFIG[alertType]?.label || alertType || '异动';
};

/**
 * 获取异动类型的详细描述
 * @param {string} alertType - 异动类型
 * @returns {string} 描述
 */
export const getAlertTypeDescription = (alertType) => {
  return ALERT_TYPE_CONFIG[alertType]?.description || '概念板块出现异动信号';
};

/**
 * 获取异动类型的配色
 * @param {string} alertType - 异动类型
 * @returns {Object} { color, gradient, bgAlpha }
 */
export const getAlertTypeColor = (alertType) => {
  const config = ALERT_TYPE_CONFIG[alertType] || ALERT_TYPE_CONFIG.surge;
  return {
    color: config.color,
    gradient: config.gradient,
    bgAlpha: config.bgAlpha,
  };
};

/**
 * 生成图表标注点数据
 * @param {Array} alerts - 异动数据数组
 * @param {Array} times - 时间数组
 * @param {Array} prices - 价格数组
 * @param {number} priceMax - 最高价格（用于无法匹配时间时的默认位置）
 * @param {number} maxCount - 最大显示数量
 * @returns {Array} ECharts markPoint data
 */
export const getAlertMarkPoints = (alerts, times, prices, priceMax, maxCount = 15) => {
  if (!alerts || alerts.length === 0) return [];

  // 按重要性排序，限制显示数量
  const sortedAlerts = [...alerts]
    .sort((a, b) => (b.final_score || b.importance_score || 0) - (a.final_score || a.importance_score || 0))
    .slice(0, maxCount);

  return sortedAlerts.map((alert) => {
    // 找到对应时间的价格
    const timeIndex = times.indexOf(alert.time);
    const price = timeIndex >= 0 ? prices[timeIndex] : (alert.index_price || priceMax);

    const { color, gradient, symbol, symbolSize } = getAlertStyle(
      alert.alert_type,
      alert.final_score / 100 || alert.importance_score || 0.5
    );

    // 格式化标签
    let label = alert.concept_name || '';
    if (label.length > 6) {
      label = label.substring(0, 5) + '...';
    }

    // 添加涨停数量（如果有）
    if (alert.limit_up_count > 0) {
      label += `\n涨停: ${alert.limit_up_count}`;
    }

    const isDown = alert.alert_type === 'surge_down';

    return {
      name: alert.concept_name,
      coord: [alert.time, price],
      value: label,
      symbol,
      symbolSize,
      itemStyle: {
        color: {
          type: 'linear',
          x: 0, y: 0, x2: 0, y2: 1,
          colorStops: [
            { offset: 0, color: gradient[0] },
            { offset: 1, color: gradient[1] },
          ],
        },
        borderColor: 'rgba(255,255,255,0.8)',
        borderWidth: 2,
        shadowBlur: 8,
        shadowColor: `${color}66`,
      },
      label: {
        show: true,
        position: isDown ? 'bottom' : 'top',
        formatter: '{b}',
        fontSize: 10,
        fontWeight: 500,
        color: isDown ? '#52c41a' : '#ff4d4f',
        backgroundColor: 'rgba(255,255,255,0.95)',
        padding: [3, 6],
        borderRadius: 4,
        borderColor: color,
        borderWidth: 1,
        shadowBlur: 4,
        shadowColor: 'rgba(0,0,0,0.1)',
      },
      alertData: alert, // 存储原始数据
    };
  });
};

/**
 * 格式化分数显示
 * @param {number} score - 分数
 * @returns {string} 格式化后的分数
 */
export const formatScore = (score) => {
  if (score === null || score === undefined) return '-';
  return Math.round(score).toString();
};

/**
 * 获取分数对应的颜色
 * @param {number} score - 分数 (0-100)
 * @returns {string} 颜色代码
 */
export const getScoreColor = (score) => {
  const s = score || 0;
  if (s >= 80) return '#ff4d4f';
  if (s >= 60) return '#fa8c16';
  if (s >= 40) return '#faad14';
  return '#8c8c8c';
};

/**
 * 获取分数等级标签
 * @param {number} score - 分数 (0-100)
 * @returns {Object} { label, color }
 */
export const getScoreLevel = (score) => {
  const s = score || 0;
  if (s >= 80) return { label: '强信号', color: '#ff4d4f' };
  if (s >= 60) return { label: '中等', color: '#fa8c16' };
  if (s >= 40) return { label: '一般', color: '#faad14' };
  return { label: '弱信号', color: '#8c8c8c' };
};

/**
 * 格式化指标值
 * @param {string} metricKey - 指标键名
 * @param {number} value - 值
 * @returns {Object} { formatted, color, showSign }
 */
export const formatMetric = (metricKey, value) => {
  const config = METRIC_CONFIG[metricKey];
  if (!config || value === null || value === undefined) {
    return { formatted: '-', color: '#8c8c8c', showSign: false };
  }

  const formatted = config.format(value);
  const color = config.getColor ? config.getColor(value) : '#8c8c8c';

  return {
    formatted: config.showSign && value > 0 ? `+${formatted}` : formatted,
    color,
    unit: config.unit,
    label: config.label,
    tooltip: config.tooltip,
  };
};