/**
 * 风场总图在 getAnomalyOverview 中的字段名。
 * 前端页面与 Node 报告必须共用，避免 Graph 字段映射漂移。
 */
export const FARM_GRAPH_FIELD_BY_TEMPLATE = {
  wind_power_curve: "model1WindpwrPowercurveGraph",
  wind_power_scatter: "model1WindpwrScatterGraph",
  yaw_static: "model2YawStaticyawGraph",
  yaw_twist: "model2YawCabletwistGraph",
  yaw_error: "model2YawYawerrorGraph",
  yaw_count: "model2YawYawcountGraph",
  pitch_coord: "model3PitchPitchcoordGraph",
  pitch_regulation: "model3PitchPitchregulationGraph",
  pitch_min: "model3PitchMinpitchGraph",
  ctrl_power_quality: "model4CtrlparamPowerqualityGraph",
  ctrl_op_state: "model4CtrlparamOperationstateGraph",
  ctrl_deload: "model4CtrlparamDeloadGraph",
  aero_cp: "model5AerodynamicsCpGraph",
  aero_tsr: "model5AerodynamicsTsrGraph",
  aero_tsr_wind: "model5AerodynamicsCpTsrGraph",
};

function overviewRecords(overviewData) {
  if (!overviewData) return [];
  if (Array.isArray(overviewData)) return overviewData;
  if (Array.isArray(overviewData.list)) return overviewData.list;
  if (Array.isArray(overviewData.records)) return overviewData.records;
  if (Array.isArray(overviewData.data)) return overviewData.data;
  if (typeof overviewData === "object") return [overviewData];
  return [];
}

function normalizeGraphSource(raw) {
  if (raw == null || raw === "") return null;
  if (typeof raw === "object") return raw;
  const text = String(raw).trim();
  if (!text || text === "null" || text === "undefined" || text === "NULL") {
    return null;
  }
  return text;
}

/** 从 getAnomalyOverview 取出各检测器总图 JSON 地址或内嵌对象 */
export function collectFarmGraphPaths(overviewData) {
  const paths = {};
  overviewRecords(overviewData).forEach((record) => {
    if (!record || typeof record !== "object") return;
    Object.entries(FARM_GRAPH_FIELD_BY_TEMPLATE).forEach(
      ([templateKey, graphField]) => {
        if (paths[templateKey]) return;
        const source = normalizeGraphSource(record[graphField]);
        if (source) paths[templateKey] = source;
      },
    );
  });
  return paths;
}

export function parseFarmGraphSource(source) {
  if (!source) return { kind: "empty", data: null, url: "" };
  if (typeof source === "object") {
    return { kind: "json", data: source, url: "" };
  }
  const text = String(source).trim();
  if (!text || text === "null" || text === "undefined" || text === "NULL") {
    return { kind: "empty", data: null, url: "" };
  }
  if (text.startsWith("{") || text.startsWith("[")) {
    try {
      return { kind: "json", data: JSON.parse(text), url: "" };
    } catch (_error) {
      return { kind: "empty", data: null, url: "" };
    }
  }
  return { kind: "url", data: null, url: text };
}