import type { AiotAlarmApi } from '#/api/aiot/alarm';

const TYPE_NAMES: Record<string, string> = {
  leave_post: '离岗检测',
  intrusion: '周界入侵',
  illegal_parking: '车辆违停',
  vehicle_congestion: '车辆拥堵',
};

const TYPE_COLORS: Record<string, string> = {
  leave_post: '#1890ff',
  intrusion: '#f5222d',
  illegal_parking: '#fa8c16',
  vehicle_congestion: '#722ed1',
};

const LEVEL_NAMES: Record<number, string> = {
  0: '紧急',
  1: '重要',
  2: '普通',
  3: '轻微',
};

const LEVEL_COLORS: Record<number, string> = {
  0: '#f5222d',
  1: '#fa8c16',
  2: '#1890ff',
  3: '#8c8c8c',
};

/** 告警趋势折线图（每种类型独立一条线，都从0开始） */
export function getTrendChartOptions(data: AiotAlarmApi.TrendItem[]): any {
  const dates = data.map((d) => d.date.slice(5)); // MM-DD
  const types = Object.keys(TYPE_NAMES);

  return {
    tooltip: {
      trigger: 'axis',
      axisPointer: { type: 'line' },
    },
    legend: {
      data: types.map((t) => TYPE_NAMES[t]),
      bottom: 0,
    },
    grid: { left: '3%', right: '4%', bottom: '12%', top: '8%', containLabel: true },
    xAxis: {
      type: 'category',
      boundaryGap: false,
      data: dates,
    },
    yAxis: { type: 'value', minInterval: 1 },
    series: types.map((type) => ({
      name: TYPE_NAMES[type],
      type: 'line',
      smooth: true,
      symbol: 'circle',
      symbolSize: 6,
      emphasis: { focus: 'series' },
      itemStyle: { color: TYPE_COLORS[type] },
      lineStyle: { width: 2 },
      data: data.map((d) => (d[type] as number) || 0),
    })),
  };
}

/** 告警类型环形图 */
export function getTypePieChartOptions(
  byType: Record<string, number>,
): any {
  const data = Object.entries(byType)
    .map(([type, count]) => ({
      name: TYPE_NAMES[type] || type,
      value: count,
      itemStyle: { color: TYPE_COLORS[type] },
    }))
    .filter((d) => d.value > 0);
  const total = data.reduce((s, d) => s + d.value, 0);

  return {
    tooltip: { trigger: 'item', formatter: '{b}: {c} ({d}%)' },
    legend: { bottom: 0, left: 'center' },
    graphic: {
      type: 'text',
      left: 'center',
      top: '42%',
      style: {
        text: `${total}`,
        fontSize: 28,
        fontWeight: 'bold',
        fill: '#333',
        textAlign: 'center',
      },
    },
    series: [
      {
        type: 'pie',
        radius: ['45%', '70%'],
        center: ['50%', '48%'],
        avoidLabelOverlap: false,
        label: { show: false },
        data,
      },
    ],
  };
}

/** 设备告警 Top10 横向条形图 */
export function getDeviceTopChartOptions(
  data: AiotAlarmApi.DeviceTopItem[],
): any {
  const sorted = [...data].reverse(); // 最多的在上面
  return {
    tooltip: { trigger: 'axis', axisPointer: { type: 'shadow' } },
    grid: { left: '3%', right: '8%', bottom: '3%', top: '3%', containLabel: true },
    xAxis: { type: 'value', minInterval: 1 },
    yAxis: {
      type: 'category',
      data: sorted.map((d) => {
        const name = d.deviceName || d.deviceId;
        return name.length > 12 ? `${name.slice(0, 12)}...` : name;
      }),
      axisLabel: { fontSize: 11 },
    },
    series: [
      {
        type: 'bar',
        data: sorted.map((d) => d.count),
        itemStyle: {
          color: {
            type: 'linear',
            x: 0, y: 0, x2: 1, y2: 0,
            colorStops: [
              { offset: 0, color: '#1890ff' },
              { offset: 1, color: '#36cfc9' },
            ],
          },
          borderRadius: [0, 4, 4, 0],
        },
        barMaxWidth: 20,
        label: { show: true, position: 'right', fontSize: 11 },
      },
    ],
  };
}

/** 告警级别分布柱状图 */
export function getLevelBarChartOptions(
  byLevel: Record<string, number>,
): any {
  const levels = [0, 1, 2, 3];
  return {
    tooltip: { trigger: 'axis', axisPointer: { type: 'shadow' } },
    grid: { left: '3%', right: '4%', bottom: '3%', top: '8%', containLabel: true },
    xAxis: {
      type: 'category',
      data: levels.map((l) => LEVEL_NAMES[l]),
    },
    yAxis: { type: 'value', minInterval: 1 },
    series: [
      {
        type: 'bar',
        data: levels.map((l) => ({
          value: byLevel[l] || 0,
          itemStyle: { color: LEVEL_COLORS[l], borderRadius: [4, 4, 0, 0] },
        })),
        barMaxWidth: 40,
        label: { show: true, position: 'top', fontSize: 11 },
      },
    ],
  };
}

/** 24小时时段分布柱状图 */
export function getHourDistChartOptions(
  data: AiotAlarmApi.HourDistItem[],
): any {
  const counts = data.map((d) => d.count);
  const maxCount = Math.max(...counts, 1);
  return {
    tooltip: { trigger: 'axis', formatter: '{b}时: {c}次' },
    grid: { left: '3%', right: '4%', bottom: '3%', top: '8%', containLabel: true },
    xAxis: {
      type: 'category',
      data: data.map((d) => `${d.hour}`),
      axisLabel: { formatter: '{value}时', fontSize: 10 },
    },
    yAxis: { type: 'value', minInterval: 1 },
    series: [
      {
        type: 'bar',
        data: counts.map((c) => ({
          value: c,
          itemStyle: {
            color: c >= maxCount * 0.8 ? '#f5222d' : c >= maxCount * 0.5 ? '#fa8c16' : '#1890ff',
            borderRadius: [3, 3, 0, 0],
          },
        })),
        barMaxWidth: 16,
      },
    ],
  };
}