/**
 * 异常检测图表视觉语义（前端全场图 + 报告共用）
 *
 * 原则：
 * - 颜色优先表达诊断结论，不用彩虹色表达大量风机编号
 * - 异常使用红色和更高层级，散点统一圆形，避免只依赖颜色
 * - 连续变量使用感知均匀、色盲友好的 Viridis 色带
 */

export const DIAGNOSTIC_COLORS = {
  normal: "#2E90FA",
  anomaly: "#F04438",
  warning: "#F79009",
  reference: "#98A2B3",
  contract: "#E11D48",
  /** 全场风功率总图合同曲线：与异常红、正常蓝分开 */
  farmContract: "#7C3AED",
  mean: "#7F56D9",
  /** 单机降载点：深琥珀，浅底上要和正常蓝点分开 */
  deload: "#A16207",
  /** 单机风功率散点：停机 */
  shutdown: "#111827",
  blade1: "#2E90FA",
  blade2: "#12B76A",
  blade3: "#7F56D9",
};

export const DIAGNOSTIC_CATEGORICAL_COLORS = [
  "#2E90FA",
  "#12B76A",
  "#F79009",
  "#7F56D9",
  "#06AED4",
  "#EE46BC",
  "#6172F3",
  "#47CD89",
  "#FDB022",
  "#84ADFF",
];

/** 全场总图：正常风机冷色，异常风机红橙暖色；同组内用不同色相区分机组 */
export const FARM_NORMAL_COOL_COLORS = Object.freeze([
  "#3B82F6",
  "#06B6D4",
  "#0EA5E9",
  "#2563EB",
  "#14B8A6",
  "#6366F1",
  "#38BDF8",
  "#0D9488",
]);

export const FARM_ANOMALY_WARM_COLORS = Object.freeze([
  "#F04438",
  "#F97316",
  "#EF4444",
  "#FB7185",
  "#EA580C",
  "#E11D48",
  "#F59E0B",
  "#DC2626",
]);

export const DIAGNOSTIC_CONTINUOUS_COLORS = [
  "#440154",
  "#3B528B",
  "#21918C",
  "#5EC962",
  "#FDE725",
];

/** 报告点数色带：白 → 浅蓝 → 深蓝（浅底报告） */
export const DIAGNOSTIC_COUNT_COLORS = [
  "#FFFFFF",
  "#D6E8F8",
  "#7EB6E0",
  "#2E75B6",
  "#0B3A6E",
];

/**
 * 点数色带：低点数深、高点数亮。页面使用。
 */
export const PAGE_DIAGNOSTIC_COUNT_COLORS = [
  "#1a2740",
  "#234b73",
  "#2f74a8",
  "#3d9fd4",
  "#6ec8f0",
];

/**
 * 单机风功率散点「停机」点色。页面科技蓝深底需浅色才可见，
 * 浅色主题沿用 DIAGNOSTIC_COLORS.shutdown；报告始终用 shutdown 深色。
 */
export const PAGE_SHUTDOWN_COLORS = Object.freeze({
  dark: "#CBD5E1",
  light: DIAGNOSTIC_COLORS.shutdown,
});

/** 报告最小桨距角色带停靠：0% / 10% / 20% / 30% / 100% */
export const PITCH_MIN_REPORT_COLOR_STOPS = [
  [0, "#e6f4f5"],
  [0.1, "#74ABF7"],
  [0.2, "#3E7AF6"],
  [0.3, "#0000E4"],
  [1, "#020085"],
];

function hexToRgb(hex) {
  const text = String(hex || "").replace("#", "");
  return [
    parseInt(text.slice(0, 2), 16),
    parseInt(text.slice(2, 4), 16),
    parseInt(text.slice(4, 6), 16),
  ];
}

function rgbToHex(rgb) {
  return `#${rgb
    .map((value) =>
      Math.max(0, Math.min(255, Math.round(value)))
        .toString(16)
        .padStart(2, "0"),
    )
    .join("")}`;
}

/** 按停靠位置铺成等距色阶，供 ECharts 连续色带按比例取色 */
export function expandColorStops(stops, steps = 101) {
  const sorted = [...stops].sort((a, b) => a[0] - b[0]);
  const colors = [];
  const last = Math.max(steps - 1, 1);
  for (let index = 0; index < steps; index += 1) {
    const t = index / last;
    let upper = sorted.findIndex((stop) => stop[0] >= t);
    if (upper < 0) upper = sorted.length - 1;
    const lower = Math.max(0, upper - (sorted[upper][0] === t ? 0 : 1));
    const [startT, startColor] = sorted[lower];
    const [endT, endColor] = sorted[upper];
    if (startT === endT) {
      colors.push(endColor);
      continue;
    }
    const ratio = (t - startT) / (endT - startT);
    const startRgb = hexToRgb(startColor);
    const endRgb = hexToRgb(endColor);
    colors.push(
      rgbToHex(
        startRgb.map(
          (value, channel) => value + (endRgb[channel] - value) * ratio,
        ),
      ),
    );
  }
  return colors;
}

export const PITCH_MIN_REPORT_COUNT_COLORS = expandColorStops(
  PITCH_MIN_REPORT_COLOR_STOPS,
);

export const DIAGNOSTIC_FARM_STYLES = Object.freeze({
  normal: Object.freeze({
    pointOpacity: 0.5,
    lineWidth: 1,
    lineOpacity: 0.5,
    z: 1,
  }),
  anomaly: Object.freeze({
    pointOpacity: 1,
    lineWidth: 2.4,
    lineOpacity: 1,
    z: 20,
  }),
  contract: Object.freeze({
    pointOpacity: 1,
    lineWidth: 3.8,
    lineOpacity: 1,
    z: 40,
  }),
  category: Object.freeze({
    pointOpacity: 0.88,
    lineWidth: 1.8,
    lineOpacity: 1,
    z: 2,
  }),
});

/** 全场图：正常点统一色、异常点统一红，图例按异常机组优先 */
export const FARM_STATUS_LEGEND_DETECTORS = new Set([
  "wind_power_curve",
  "wind_power_scatter",
  "yaw_static",
  "yaw_twist",
  "pitch_coord",
  "pitch_regulation",
  "ctrl_power_quality",
  "ctrl_op_state",
  "ctrl_deload",
  "aero_cp",
  "aero_tsr",
  "aero_tsr_wind",
]);

/** 按散点/点状态上色（正常点蓝、异常点红；以 pointAnomaly 或系列名拆分为准） */
const FARM_POINT_STATUS_COLOR_DETECTORS = new Set([
  "wind_power_curve",
  "wind_power_scatter",
  "yaw_static",
  "yaw_twist",
  "pitch_coord",
  "aero_cp",
  "aero_tsr",
  "aero_tsr_wind",
]);

export function usesFarmPointStatusColor(templateKey = "") {
  return FARM_POINT_STATUS_COLOR_DETECTORS.has(templateKey);
}

export function usesFarmTurbineStatusColor(templateKey = "") {
  return (
    FARM_STATUS_LEGEND_DETECTORS.has(templateKey) &&
    !FARM_POINT_STATUS_COLOR_DETECTORS.has(templateKey)
  );
}

/**
 * 静态偏航误差绝对值分档（度）：
 * [0,3]、 (3,5]、 >5
 */
export const YAW_ERROR_ABS_RANGES = Object.freeze([
  Object.freeze({
    key: "low",
    label: "[0,3]",
    color: DIAGNOSTIC_COLORS.blade2,
  }),
  Object.freeze({
    key: "mid",
    label: "(3,5]",
    color: DIAGNOSTIC_COLORS.warning,
  }),
  Object.freeze({
    key: "high",
    label: ">5",
    color: DIAGNOSTIC_COLORS.anomaly,
  }),
]);

export function classifyYawErrorAbsRange(value) {
  const abs = Math.abs(Number(value));
  if (!Number.isFinite(abs)) return null;
  if (abs <= 3) return YAW_ERROR_ABS_RANGES[0];
  if (abs <= 5) return YAW_ERROR_ABS_RANGES[1];
  return YAW_ERROR_ABS_RANGES[2];
}

export function yawErrorAbsRangeColor(value) {
  return classifyYawErrorAbsRange(value)?.color || DIAGNOSTIC_COLORS.normal;
}

export function countYawErrorAbsRanges(values = []) {
  const counts = YAW_ERROR_ABS_RANGES.map(() => 0);
  values.forEach((value) => {
    const range = classifyYawErrorAbsRange(value);
    if (!range) return;
    const idx = YAW_ERROR_ABS_RANGES.findIndex(
      (item) => item.key === range.key,
    );
    if (idx >= 0) counts[idx] += 1;
  });
  return counts;
}

export const FARM_STATUS_NORMAL_LEGEND = "正常机组";

/** 全场单值柱图：正常统一色、异常红，图例优先列出异常机组 */
export function buildFarmStatusBarSeries({
  categories = [],
  values = [],
  extras = [],
  anomalyFlags = [],
} = {}) {
  const flags = categories.map((_, idx) => Boolean(anomalyFlags[idx]));
  const abnormalNames = categories.filter((_, idx) => flags[idx]);
  const hasNormal = flags.some((flag) => !flag);
  const makeItem = (idx, color) => ({
    name: categories[idx],
    value: values[idx],
    extra: extras[idx],
    itemStyle: { color },
  });
  const series = [];
  if (hasNormal) {
    series.push({
      type: "bar",
      name: FARM_STATUS_NORMAL_LEGEND,
      color: DIAGNOSTIC_COLORS.normal,
      itemStyle: { color: DIAGNOSTIC_COLORS.normal },
      data: categories.map((_, idx) =>
        flags[idx] ? null : makeItem(idx, DIAGNOSTIC_COLORS.normal),
      ),
      barMaxWidth: 28,
      barGap: "-100%",
    });
  }
  abnormalNames.forEach((name) => {
    const hit = categories.indexOf(name);
    series.push({
      type: "bar",
      name,
      color: DIAGNOSTIC_COLORS.anomaly,
      itemStyle: { color: DIAGNOSTIC_COLORS.anomaly },
      data: categories.map((_, idx) =>
        idx === hit ? makeItem(idx, DIAGNOSTIC_COLORS.anomaly) : null,
      ),
      barMaxWidth: 28,
      barGap: "-100%",
    });
  });
  return {
    legendNames: [
      ...(hasNormal ? [FARM_STATUS_NORMAL_LEGEND] : []),
      ...abnormalNames,
    ],
    series,
  };
}

export function usesFarmStatusLegend(templateKey = "") {
  return FARM_STATUS_LEGEND_DETECTORS.has(templateKey);
}

function seriesText(rowOrLabel) {
  if (rowOrLabel && typeof rowOrLabel === "object") {
    return `${rowOrLabel.originalLabel || ""} ${rowOrLabel.label || ""}`;
  }
  return String(rowOrLabel || "");
}

/** 散点图内应叠加为折线的参考/功率曲线（非运行状态散点） */
export function isOverlayCurveSeries(rowOrLabel) {
  if (rowOrLabel?.__shared) return true;
  const text = seriesText(rowOrLabel);
  if (/参考功率|理论功率|合同功率|参考曲线/.test(text)) return true;
  if (/近90日.*功率曲线|近90日功率曲线/.test(text)) return true;
  return false;
}

/** 全场总图跨机组去重保留一条的参考曲线 */
export function isSharedOverlayCurveSeries(rowOrLabel) {
  const text = seriesText(rowOrLabel);
  if (/参考功率|理论功率|合同功率|参考曲线/.test(text)) return true;
  if (/近90日.*功率曲线|近90日功率曲线/.test(text)) return true;
  return false;
}

export function sharedOverlayCurveLabel(label) {
  const text = String(label || "");
  if (/近90日/.test(text)) return "近90日功率曲线";
  if (/合同功率/.test(text)) return "合同功率曲线";
  if (/参考功率|理论功率|参考曲线/.test(text)) return "参考功率曲线";
  return text;
}

export function isContractPowerCurve(rowOrLabel) {
  return /合同功率/.test(seriesText(rowOrLabel));
}

/** 单机图：合同功率曲线在散点/曲线下方，异常点压在正常点上面 */
export const SINGLE_TURBINE_CONTRACT_Z = 1;
export const SINGLE_TURBINE_SERIES_Z = 2;
export const SINGLE_TURBINE_ANOMALY_Z = 8;

export function diagnosticSingleSeriesZ(rowOrLabel) {
  const role = classifyDiagnosticSeries(rowOrLabel);
  if (role === "contract") return SINGLE_TURBINE_CONTRACT_Z;
  if (role === "anomaly" || role === "deload" || role === "shutdown") {
    return SINGLE_TURBINE_ANOMALY_Z;
  }
  return SINGLE_TURBINE_SERIES_Z;
}

function readSeriesCoord(point) {
  if (Array.isArray(point)) return point;
  if (Array.isArray(point?.value)) return point.value;
  return null;
}

/** 单机图里异常系列的坐标范围，用来把被 yrange 裁掉的异常点拉回坐标轴 */
export function anomalySeriesAxisExtent(series = []) {
  let xMin = Infinity;
  let xMax = -Infinity;
  let yMin = Infinity;
  let yMax = -Infinity;
  let found = false;
  (series || []).forEach((item) => {
    if (classifyDiagnosticSeries(item?.name) !== "anomaly") return;
    (item.data || []).forEach((point) => {
      const coord = readSeriesCoord(point);
      if (!coord) return;
      const x = Number(coord[0]);
      const y = Number(coord[1]);
      if (Number.isFinite(x)) {
        if (x < xMin) xMin = x;
        if (x > xMax) xMax = x;
        found = true;
      }
      if (Number.isFinite(y)) {
        if (y < yMin) yMin = y;
        if (y > yMax) yMax = y;
        found = true;
      }
    });
  });
  if (!found) return null;
  return {
    xMin: Number.isFinite(xMin) ? xMin : null,
    xMax: Number.isFinite(xMax) ? xMax : null,
    yMin: Number.isFinite(yMin) ? yMin : null,
    yMax: Number.isFinite(yMax) ? yMax : null,
  };
}

/** 已锁定的轴范围若把异常点裁在外面，就扩到能包住这些点 */
export function expandAxisToExtent(axis, dataMin, dataMax) {
  if (!axis || dataMin == null || dataMax == null) return axis;
  const min = Number(axis.min);
  const max = Number(axis.max);
  if (Number.isFinite(min) && dataMin < min) axis.min = dataMin;
  if (Number.isFinite(max) && dataMax > max) axis.max = dataMax;
  return axis;
}

/** 变桨-转速-功率协调：横轴固定从该值起展示 */
export const PITCH_COORD_X_MIN = 1000;

/** 变桨协调仍读取 yrange；横轴最小值固定，不跟 xrange 起点走 */
export function usesDataAxisRange(templateKey) {
  return templateKey === "pitch_coord";
}

/**
 * 变桨协调横轴：最小固定为 1000。xrange 上限大于 1000 时沿用，否则最大值自适应。
 * @returns {boolean} 横轴最小值已锁定
 */
export function applyPitchCoordXAxis(axis, xrange) {
  if (!axis) return false;
  axis.min = PITCH_COORD_X_MIN;
  const max = Array.isArray(xrange) ? Number(xrange[1]) : NaN;
  if (Number.isFinite(max) && max > PITCH_COORD_X_MIN) {
    axis.max = max;
    axis.scale = false;
  } else {
    axis.max = undefined;
    axis.scale = true;
  }
  return true;
}

/**
 * 有 xrange / yrange 就设为坐标轴 min/max。
 * @returns {boolean} 是否已锁定
 */
export function lockAxisToRange(axis, range, convert) {
  if (!axis || !Array.isArray(range) || range.length < 2) return false;
  if (
    range[0] == null ||
    range[1] == null ||
    range[0] === "" ||
    range[1] === ""
  ) {
    return false;
  }
  const min = typeof convert === "function" ? convert(range[0]) : range[0];
  const max = typeof convert === "function" ? convert(range[1]) : range[1];
  if (min == null || max == null || min === "" || max === "") return false;
  if (typeof min === "number" && !Number.isFinite(min)) return false;
  if (typeof max === "number" && !Number.isFinite(max)) return false;
  axis.min = min;
  axis.max = max;
  axis.scale = false;
  return true;
}

export function classifyDiagnosticSeries(rowOrLabel) {
  const text = seriesText(rowOrLabel);
  if (/合同功率/.test(text)) return "contract";
  if (/桨叶\s*1/.test(text)) return "blade1";
  if (/桨叶\s*2/.test(text)) return "blade2";
  if (/桨叶\s*3/.test(text)) return "blade3";
  // 单机风功率散点运行状态（须先于「正常/异常」通用匹配）
  if (/停机/.test(text)) return "shutdown";
  if (/降载/.test(text) && !/累计降载|降载率|降载占比|降载判定/.test(text)) {
    return "deload";
  }
  if (/异常/.test(text) && !/正常/.test(text)) return "anomaly";
  if (/上限|下限|阈值|警戒|频繁/.test(text)) return "warning";
  if (/均值|平均|趋势/.test(text)) return "mean";
  if (isOverlayCurveSeries(rowOrLabel)) return "reference";
  if (/参考|理论|合同|基准|标准/.test(text) || rowOrLabel?.__shared) {
    return "reference";
  }
  if (/正常/.test(text)) return "normal";
  return "category";
}

/**
 * 系列颜色。options.pageTheme 时「停机」改用页面可见色（深色主题浅灰），
 * 报告与单机浅色主题不传该选项，保持 shutdown 深色不变。
 */
export function diagnosticSeriesColor(rowOrLabel, index = 0, options = {}) {
  const role = classifyDiagnosticSeries(rowOrLabel);
  if (options.pageTheme && role === "shutdown") {
    return options.darkTheme
      ? PAGE_SHUTDOWN_COLORS.dark
      : PAGE_SHUTDOWN_COLORS.light;
  }
  if (DIAGNOSTIC_COLORS[role]) return DIAGNOSTIC_COLORS[role];
  const safeIndex = Math.abs(Number(index) || 0);
  return DIAGNOSTIC_CATEGORICAL_COLORS[
    safeIndex % DIAGNOSTIC_CATEGORICAL_COLORS.length
  ];
}

function paletteIndexOf(rowOrLabel, index = 0) {
  const turbineIndex = Number(rowOrLabel?.turbineIndex);
  if (Number.isFinite(turbineIndex)) return Math.abs(turbineIndex);
  return Math.abs(Number(index) || 0);
}

function turbineAnomalyFlag(rowOrLabel) {
  if (!rowOrLabel || typeof rowOrLabel !== "object") return null;
  // pointAnomaly 拆分后的行级 anomaly 优先于整机 extra.anomaly，避免正常点被整机标红
  if (typeof rowOrLabel.anomaly === "boolean") return rowOrLabel.anomaly;
  if (typeof rowOrLabel.extra?.anomaly === "boolean")
    return rowOrLabel.extra.anomaly;
  return null;
}

/**
 * 全场总图是否按「异常风机」上色。
 */
export function isFarmAnomalyTurbine(rowOrLabel, templateKey = "") {
  const flagged = turbineAnomalyFlag(rowOrLabel);
  if (typeof flagged === "boolean") return flagged;
  return classifyDiagnosticSeries(rowOrLabel) === "anomaly";
}

export function farmStatusPaletteColor(
  rowOrLabel,
  index = 0,
  templateKey = "",
) {
  const palette = isFarmAnomalyTurbine(rowOrLabel, templateKey)
    ? FARM_ANOMALY_WARM_COLORS
    : FARM_NORMAL_COOL_COLORS;
  return palette[paletteIndexOf(rowOrLabel, index) % palette.length];
}

/**
 * 全场图颜色语义：
 * - 风功率曲线/散点、偏航分析 / 扭缆 / 变桨协调、气动 Cp/TSR：正常点蓝、异常点红（pointAnomaly）；
 * - 变桨一致性、电能质量、运行状态、降载：异常机组整机红，正常机组统一蓝（无 pointAnomaly 时）；有 pointAnomaly 时仍按点拆分后的行级 anomaly；
 * - 参考 / 阈值 / 均值保持语义色。
 * - 单机「降载黄 / 停机黑」仅用于单机风功率散点；全场总图一律红/蓝。
 */
export function diagnosticFarmSeriesColor(
  rowOrLabel,
  index = 0,
  templateKey = "",
) {
  const role = classifyDiagnosticSeries(rowOrLabel);
  if (
    role === "contract" ||
    role === "reference" ||
    role === "warning" ||
    role === "mean"
  ) {
    return diagnosticSeriesColor(rowOrLabel, index);
  }
  if (templateKey === "wind_power_curve") {
    return isFarmAnomalyTurbine(rowOrLabel, templateKey)
      ? DIAGNOSTIC_COLORS.anomaly
      : DIAGNOSTIC_COLORS.normal;
  }
  if (usesFarmPointStatusColor(templateKey)) {
    return role === "anomaly" || role === "deload" || role === "shutdown"
      ? DIAGNOSTIC_COLORS.anomaly
      : DIAGNOSTIC_COLORS.normal;
  }
  if (usesFarmTurbineStatusColor(templateKey)) {
    // 报告拼接单机图时可能残留 label=降载/停机，按异常红而非单机黄/黑
    if (role === "deload" || role === "shutdown") {
      return DIAGNOSTIC_COLORS.anomaly;
    }
    return isFarmAnomalyTurbine(rowOrLabel, templateKey)
      ? DIAGNOSTIC_COLORS.anomaly
      : DIAGNOSTIC_COLORS.normal;
  }
  if (role === "deload" || role === "shutdown") {
    return diagnosticSeriesColor(rowOrLabel, index);
  }
  return farmStatusPaletteColor(rowOrLabel, index, templateKey);
}

export function farmTurbineLegendName(rowOrLabel) {
  const obj = rowOrLabel && typeof rowOrLabel === "object" ? rowOrLabel : null;
  let text = String(obj?.engineName || obj?.turbine || "").trim();
  if (!text) {
    text = String(obj?.label || rowOrLabel || "")
      .replace(/\s*(正常数据|异常点|正常|异常|降载|停机)$/u, "")
      .trim();
  }
  if (!text) return "";
  if (/^\d+$/.test(text)) return `${text}号`;
  return text;
}

export function farmStatusSeriesName(
  row,
  legendMode = "normal",
  templateKey = "",
) {
  const turbine = farmTurbineLegendName(row);
  if (!turbine) return row?.label || "";
  if (legendMode !== "anomaly") return turbine;
  const role = classifyDiagnosticSeries(row);
  const matchLegend = usesFarmTurbineStatusColor(templateKey)
    ? isFarmAnomalyTurbine(row, templateKey) ||
      role === "deload" ||
      role === "shutdown"
    : role === "anomaly" || role === "deload" || role === "shutdown";
  return matchLegend ? turbine : `${turbine} 正常`;
}

export function pickFarmStatusLegend(rows = [], templateKey = "") {
  const map = new Map();
  let hasNormal = false;
  (rows || []).forEach((row) => {
    if (!row || row.__shared) return;
    const role = classifyDiagnosticSeries(row);
    if (
      role === "contract" ||
      role === "reference" ||
      role === "warning" ||
      role === "mean"
    ) {
      return;
    }
    const name = farmTurbineLegendName(row);
    if (!name) return;
    const anomalous = usesFarmTurbineStatusColor(templateKey)
      ? isFarmAnomalyTurbine(row, templateKey) ||
        role === "deload" ||
        role === "shutdown"
      : role === "anomaly" ||
        role === "deload" ||
        role === "shutdown" ||
        isFarmAnomalyTurbine(row, templateKey);
    if (usesFarmPointStatusColor(templateKey)) {
      if (role === "normal") hasNormal = true;
    } else if (!anomalous) {
      hasNormal = true;
    }
    map.set(name, Boolean(map.get(name)) || anomalous);
  });
  const entries = [...map.entries()];
  const abnormal = entries.filter(([, flag]) => flag).map(([name]) => name);
  if (abnormal.length) {
    return {
      mode: "anomaly",
      names: hasNormal ? [FARM_STATUS_NORMAL_LEGEND, ...abnormal] : abnormal,
    };
  }
  return { mode: "normal", names: entries.map(([name]) => name) };
}

export function buildFarmNormalLegendSeries() {
  return {
    name: FARM_STATUS_NORMAL_LEGEND,
    type: "scatter",
    data: [],
    symbol: "circle",
    color: DIAGNOSTIC_COLORS.normal,
    itemStyle: { color: DIAGNOSTIC_COLORS.normal },
    tooltip: { show: false },
    silent: true,
    z: 0,
  };
}

export function ensureFarmNormalLegendSeries(series = [], legendPick) {
  if (!legendPick?.names?.includes(FARM_STATUS_NORMAL_LEGEND)) return series;
  if (series.some((item) => item.name === FARM_STATUS_NORMAL_LEGEND)) {
    return series;
  }
  return [buildFarmNormalLegendSeries(), ...series];
}

/** 全场散点统一点径：正常点与异常点一样大，只靠颜色和绘制顺序区分 */
export const FARM_SCATTER_SYMBOL_SIZE = 4;

export function diagnosticFarmSymbolSize(
  _rowOrLabel,
  _pointCount = 0,
  _templateKey = "",
) {
  return FARM_SCATTER_SYMBOL_SIZE;
}

export function diagnosticFarmStyle(rowOrLabel, templateKey = "") {
  const role = classifyDiagnosticSeries(rowOrLabel);
  if (role === "contract") {
    return DIAGNOSTIC_FARM_STYLES.contract;
  }
  if (role === "reference" || role === "warning" || role === "mean") {
    return Object.freeze({
      ...(DIAGNOSTIC_FARM_STYLES[role] || DIAGNOSTIC_FARM_STYLES.category),
      z: 30,
    });
  }
  const base = DIAGNOSTIC_FARM_STYLES[role] || DIAGNOSTIC_FARM_STYLES.category;
  const pointAnomalyRole =
    role === "anomaly" || role === "deload" || role === "shutdown";
  const farmAnomaly =
    isFarmAnomalyTurbine(rowOrLabel, templateKey) ||
    role === "deload" ||
    role === "shutdown";
  if (pointAnomalyRole) {
    const anomaly = DIAGNOSTIC_FARM_STYLES.anomaly;
    return {
      ...base,
      z: anomaly.z,
      lineWidth: Math.max(base.lineWidth, anomaly.lineWidth),
      lineOpacity: anomaly.lineOpacity,
      pointOpacity: 1,
    };
  }
  if (usesFarmTurbineStatusColor(templateKey) && farmAnomaly) {
    const anomaly = DIAGNOSTIC_FARM_STYLES.anomaly;
    return {
      ...base,
      z: anomaly.z,
      lineWidth: Math.max(base.lineWidth, anomaly.lineWidth),
      lineOpacity: anomaly.lineOpacity,
      pointOpacity: anomaly.pointOpacity,
    };
  }
  return base;
}

/** 全场总图绘制顺序：异常点压在正常点上面，仍与坐标轴同一层，避免独立 zlevel 丢点 */
export function farmSeriesPaintOrder(rowOrLabel, templateKey = "") {
  const style = diagnosticFarmStyle(rowOrLabel, templateKey);
  const role = classifyDiagnosticSeries(rowOrLabel);
  const lifted =
    role === "anomaly" ||
    role === "deload" ||
    role === "shutdown" ||
    (usesFarmTurbineStatusColor(templateKey) &&
      isFarmAnomalyTurbine(rowOrLabel, templateKey) &&
      role !== "normal" &&
      role !== "contract" &&
      role !== "reference" &&
      role !== "warning" &&
      role !== "mean");
  return {
    z: lifted ? Math.max(Number(style.z) || 0, 20) : Number(style.z) || 1,
    z2: lifted ? 30 : 0,
    zlevel: 0,
  };
}

export function diagnosticBladeStyle(rowOrLabel) {
  const role = classifyDiagnosticSeries(rowOrLabel);
  if (role === "blade1") {
    return { symbol: "rect", lineType: "dashed", showSymbol: true };
  }
  if (role === "blade2") {
    return { symbol: "circle", lineType: "solid", showSymbol: true };
  }
  if (role === "blade3") {
    return { symbol: "triangle", lineType: "dotted", showSymbol: true };
  }
  return null;
}

export function diagnosticSeriesSymbol(rowOrLabel, fallback = "circle") {
  const role = classifyDiagnosticSeries(rowOrLabel);
  if (role === "blade1") return "rect";
  if (role === "blade2") return "circle";
  if (role === "blade3") return "triangle";
  return fallback || "circle";
}

export function diagnosticLineType(rowOrLabel) {
  const role = classifyDiagnosticSeries(rowOrLabel);
  if (role === "contract") return "solid";
  if (role === "warning" || role === "reference" || role === "mean") {
    return "dashed";
  }
  if (role === "blade1") return "dashed";
  if (role === "blade3") return "dotted";
  return "solid";
}