import type { EChartsOption } from 'echarts';

export function getSmartMaxAndInterval(data1: number[], data2: number[], maxSplits = 5) {
  const maxVal = Math.max(...data1, ...data2, 0);
  if (maxVal === 0) return { max: maxSplits, interval: 1 };
  const roughInterval = maxVal / maxSplits;
  const magnitude = Math.pow(10, Math.floor(Math.log10(roughInterval)));
  const residual = roughInterval / magnitude;
  let niceInterval: number;
  if (residual <= 1) niceInterval = 1;
  else if (residual <= 2) niceInterval = 2;
  else if (residual <= 5) niceInterval = 5;
  else niceInterval = 10;
  const interval = niceInterval * magnitude;
  return { max: interval * maxSplits, interval };
}

const ADMIN_PIE_COLORS = ['#2d6fcf', '#4fa0a8', '#5e9acc', '#b29f60', '#af5172', '#8a61d2', '#6f2c9b', '#9d7173', '#887456', '#9eac71'];
const NON_ADMIN_PIE_COLORS = ['#7bb06c', '#489d61', '#4e97a6', '#3953d4', '#4e3ec5', '#6f2c9b', '#9d7173', '#887456', '#9eac71', '#8e5aac'];

export function buildAdminPieOption(data: { value: number; name: string }[]): EChartsOption {
  const coloredData = data.map((item, index) => ({
    ...item,
    itemStyle: { color: ADMIN_PIE_COLORS[index % ADMIN_PIE_COLORS.length] }
  }));
  return {
    tooltip: {
      trigger: 'item',
      formatter: '{b}: <br/>  {c} ({d}%)',
      backgroundColor: 'rgba(0, 0, 0, .5)',
      textStyle: { fontSize: 12, color: 'rgba(255, 255, 255, .8)' }
    },
    legend: {
      bottom: '0',
      show: true,
      textStyle: { color: '#809ABE', fontSize: 12 },
      icon: 'circle',
      itemWidth: 6.5,
      itemHeight: 6.5,
      itemGap: 15
    },
    color: ADMIN_PIE_COLORS,
    series: [
      {
        name: '行政执法类别数量及占比',
        type: 'pie',
        radius: [52, 72],
        center: ['50%', '50%'],
        itemStyle: { borderRadius: 1 },
        label: {
          show: true,
          formatter: '{b|{b}} ' + '{b|:}' + '\n ' + '{a|{c}}' + '{d| ({d}%)}',
          rich: {
            a: { color: '#3aaefb', fontSize: 12, lineHeight: 16 },
            b: { color: 'rgba(255, 255, 255, .6)', fontSize: 12, lineHeight: 16 },
            d: { color: '#3aaefb', fontSize: 12 }
          }
        },
        labelLine: { show: true, length: 20, length2: 5, smooth: 0 },
        data: coloredData
      }
    ]
  };
}

export function buildNonAdminPieOption(data: { value: number; name: string }[]): EChartsOption {
  const coloredData = data.map((item, index) => ({
    ...item,
    itemStyle: { color: NON_ADMIN_PIE_COLORS[index % NON_ADMIN_PIE_COLORS.length] }
  }));
  return {
    tooltip: {
      trigger: 'item',
      formatter: '{b}: <br/>  {c} ({d}%)',
      backgroundColor: 'rgba(0, 0, 0, .5)',
      textStyle: { fontSize: 12, color: 'rgba(255, 255, 255, .8)' }
    },
    legend: {
      bottom: '-1%',
      show: true,
      textStyle: { color: '#809ABE', fontSize: 12 },
      icon: 'circle',
      itemWidth: 6.5,
      itemHeight: 6.5,
      itemGap: 15
    },
    color: NON_ADMIN_PIE_COLORS,
    series: [
      {
        name: '非行政执法类别数量及占比',
        type: 'pie',
        radius: [52, 72],
        center: ['50%', '40%'],
        itemStyle: { borderRadius: 1 },
        label: {
          show: true,
          formatter: '{b|{b}} ' + '{b|:}' + '\n ' + '{a|{c}}' + '{d| ({d}%)}',
          rich: {
            a: { color: '#3aaefb', fontSize: 12, lineHeight: 16 },
            b: { color: 'rgba(255, 255, 255, .6)', fontSize: 12, lineHeight: 16 },
            d: { color: '#3aaefb', fontSize: 12 }
          }
        },
        labelLine: { show: true, length: 20, length2: 5, smooth: 0 ,maxSurfaceAngle: 80 },
        data: coloredData
      }
    ]
  };
}

export function buildTrendLineOption(
  times: string[],
  ins: number[],
  ent: number[],
  insName: string,
  entName: string,
  leftAxisName: string,
  rightAxisName: string = '被执法企业数量（家）'
): EChartsOption {
  const { max, interval } = getSmartMaxAndInterval(ins, ent, 5);
  return {
    tooltip: {
      trigger: 'axis',
      backgroundColor: 'rgba(0, 0, 0, .5)',
      borderColor: 'rgba(46, 130, 253, .5)',
      axisPointer: { lineStyle: { color: 'rgba(255, 255, 255, .8)' } },
      textStyle: { fontSize: 12, color: 'rgba(255, 255, 255, .8)' }
    },
    legend: {
      data: [insName, entName],
      right: 0,
      top: 0,
      itemGap: 15,
      textStyle: { fontSize: 12, color: 'rgba(255,255,255,.5)' }
    },
    color: ['rgba(69,139,252,1)', '#f59036'],
    grid: { left: '3%', right: '3%', bottom: '0', containLabel: true },
    xAxis: [
      {
        type: 'category',
        boundaryGap: false,
        axisLabel: { show: true, color: 'rgba(255,255,255,.5)' },
        axisLine: { lineStyle: { color: 'rgba(255,255,255,.1)' } },
        data: times
      }
    ],
    yAxis: [
      {
        type: 'value',
        name: leftAxisName,
        position: 'left',
        axisLine: { lineStyle: { color: 'rgba(69,139,252,.7)' } },
        axisLabel: { formatter: '{value}', color: 'rgba(69,139,252,.7)' },
        splitLine: { lineStyle: { color: 'rgba(255,255,255,.1)' } },
        max,
        interval
      },
      {
        type: 'value',
        name: rightAxisName,
        position: 'right',
        axisLine: { lineStyle: { color: 'rgba(245,144,54,.65)' } },
        axisLabel: { formatter: '{value}', color: 'rgba(245,144,54,.65)' },
        splitLine: { lineStyle: { color: 'rgba(255,255,255,.1)' } },
        max,
        interval
      }
    ],
    series: [
      {
        name: insName,
        type: 'line',
        lineStyle: { width: 2, type: 'solid', color: 'rgba(69,139,252,1)' },
        itemStyle: { color: 'rgba(69,139,252,1)' },
        symbol: 'circle',
        symbolSize: 6,
        label: { show: false },
        data: ins
      },
      {
        name: entName,
        type: 'line',
        yAxisIndex: 1,
        lineStyle: { width: 2, type: 'solid', color: 'rgba(245,144,54,.7)' },
        itemStyle: { color: 'rgba(245,144,54,.7)' },
        symbol: 'circle',
        symbolSize: 6,
        label: { show: false },
        data: ent
      }
    ]
  };
}

export function buildRankBarOption(names: string[], values: number[], seriesName: string): EChartsOption {
  return {
    tooltip: { trigger: 'axis' },
    grid: { left: '5%', right: '0', bottom: '5%', top: '15%', containLabel: true },
    xAxis: [
      {
        type: 'category',
        data: names,
        axisLine: { show: false },
        axisTick: { show: false },
        axisLabel: {
          interval: 0,
          rotate: 30,
          color: '#999',
          fontSize: 12,
          formatter: (value: string) => (value.length > 6 ? value.slice(0, 6) + '...' : value)
        }
      }
    ],
    yAxis: [
      {
        type: 'value',
        splitLine: { show: true, lineStyle: { color: 'transparent' } },
        axisLine: { show: false },
        axisTick: { show: false },
        axisLabel: { color: '#79a3ca', fontSize: 12 }
      }
    ],
    series: [
      {
        name: seriesName,
        type: 'bar',
        barWidth: '25%',
        showBackground: true,
        backgroundStyle: { borderRadius: [5, 5, 0, 0] },
        itemStyle: { borderRadius: [5, 5, 0, 0], color: '#7ca9fb' },
        label: { show: true, position: 'outside' },
        data: values
      }
    ]
  };
}

export function buildAutoRatePieOption(data: { value: number; name: string }[]): EChartsOption {
  return {
    tooltip: {
      trigger: 'item',
      formatter: '{b}: {c} ({d}%)'
    },
    series: [
      {
        name: '委托执法数量及占比',
        type: 'pie',
        radius: ['42%', '60%'],
        padAngle: 3,
        itemStyle: { borderColor: '#fff', borderWidth: 1 },
        label: {
          show: true,
          formatter: '{b|{b}}: {a|{c}}{d| ({d}%)}',
          rich: {
            a: { color: 'rgba(0, 0, 0, .6)', fontSize: 12 },
            b: { color: 'rgba(0, 0, 0, .85)', fontSize: 12 },
            d: { color: 'rgba(0, 0, 0, .6)', fontSize: 12 }
          }
        },
        labelLine: { show: true, length: 30, length2: 50 },
        color: ['#5292fc', '#91cc75', '#fac858', '#ef6667', '#73c0df', '#3ba272', '#fc8352', '#9b60b4', '#9ebafc', '#0047eb'],
        data
      }
    ]
  };
}

const RING_COLORS = ['#5292fc', '#91cc75', '#fac858', '#ef6667', '#73c0df', '#3ba272', '#fc8352', '#9b60b4', '#9ebafc', '#0047eb'];

export function buildRingPieOption(name: string, data: { value: number; name: string }[]): EChartsOption {
  return {
    tooltip: {
      trigger: 'item',
      formatter: '{b}: {c} ({d}%)'
    },
    series: [
      {
        name,
        type: 'pie',
        radius: ['42%', '60%'],
        padAngle: 3,
        itemStyle: { borderColor: '#fff', borderWidth: 1 },
        labelLine: { show: true, length: 30, length2: 10 },
        color: RING_COLORS,
        data
      }
    ]
  };
}

function toPercent(value: number, total: number) {
  if (!total) return '0%';
  return `${((value / total) * 100).toFixed(2)}%`;
}

export function buildHorizontalBarOption(
  categories: string[],
  values: number[],
  color: string,
  bgColor: string
): EChartsOption {
  const total = values.reduce((s, v) => s + v, 0);
  const percentData = values.map((v) => toPercent(v, total));
  return {
    tooltip: { trigger: 'axis', axisPointer: { type: 'shadow' } },
    grid: { left: '3%', right: '15%', bottom: '3%', containLabel: true },
    xAxis: { type: 'value', show: false, splitLine: { show: false } },
    yAxis: {
      type: 'category',
      data: categories,
      axisLine: { show: false },
      axisTick: { show: false },
      splitLine: { show: false }
    },
    series: [
      {
        name: '数量',
        type: 'bar',
        data: values.map((value, index) => ({ value, percent: percentData[index] })),
        barWidth: 12,
        showBackground: true,
        backgroundStyle: { borderRadius: 10, color: bgColor },
        label: {
          show: true,
          position: 'right',
          color: '#666',
          formatter: '{c} ({@percent})'
        },
        itemStyle: { borderRadius: 8, color }
      }
    ]
  };
}

export function buildDistrictBarOption(
  districts: string[],
  singleLaw: number[],
  unionLaw: number[],
  enfEnt: number[],
  entEeduction: number[],
  compAddress: number[],
  entAddress: number[]
): EChartsOption {
  return {
    tooltip: { trigger: 'axis' },
    legend: {
      top: 0,
      right: 0,
      itemGap: 20,
      itemWidth: 10,
      itemHeight: 10,
      data: ['单独执法', '联合执法', '被执法企业', '入企压减率', '涉企投诉', '企业数量']
    },
    grid: { left: '0', right: '0', bottom: '0', top: '20%', containLabel: true },
    xAxis: [{ type: 'category', data: districts, axisLine: { show: false }, axisTick: { show: false } }],
    yAxis: [{ type: 'value', splitLine: { lineStyle: { color: 'rgba(255,255,255,.1)' } } }],
    series: [
      { name: '单独执法', type: 'bar', stack: 'total', data: singleLaw, color: '#5292fc' },
      { name: '联合执法', type: 'bar', stack: 'total', data: unionLaw, color: '#91cc75' },
      { name: '被执法企业', type: 'bar', data: enfEnt, color: '#fac858' },
      { name: '入企压减率', type: 'bar', data: entEeduction, color: '#ef6667' },
      { name: '涉企投诉', type: 'bar', data: compAddress, color: '#73c0df' },
      { name: '企业数量', type: 'bar', data: entAddress, color: '#3ba272' }
    ]
  };
}

export function mapObjectArrayToPie(data: Record<string, number>[]) {
  return data.map((obj) => {
    const [name, value] = Object.entries(obj)[0];
    return { name, value: Number(value) };
  });
}

export function formatPercent(value: string | number, digits = 2) {
  return `${parseFloat(String(value)).toFixed(digits)}%`;
}