performance-test/downLoadServer/src/server/utils/chartsCom/TwoDMarkersChart1.js

import { renderChart } from "../chartService/index.js";
import { colorSchemes } from "../colors.js";

export const generateTwoDMarkersChart1 = async (
  data,
  bucketName,
  objectName,
) => {
  try {
    // ✅ 1. 数据拆分（修复 enginName 拼写问题🔥）
    const scatterData = data.data.find(
      (item) => item.engineName !== "合同功率曲线",
    );

    const lineData = data.data.find(
      (item) =>
        item.engineName === "合同功率曲线" || item.enginName === "合同功率曲线",
    );

    if (!scatterData) {
      throw new Error("scatterData 不存在");
    }

    // ✅ 2. 颜色数据源
    const rawColorData =
      scatterData.colorbar?.length === scatterData.xData.length
        ? scatterData.colorbar
        : scatterData.color;

    const uniqueLabels = [...new Set(rawColorData)];

    const tickvals = uniqueLabels.map((_, i) => i + 1);

    const ticktext = uniqueLabels.map((dateStr) => {
      const date = new Date(dateStr);
      if (isNaN(date)) return dateStr; // 防止非法时间🔥
      const y = date.getFullYear();
      const m = String(date.getMonth() + 1).padStart(2, "0");
      return `${y}-${m}`;
    });

    const mapping = uniqueLabels.reduce((acc, cur, i) => {
      acc[cur] = i + 1;
      return acc;
    }, {});

    // ✅ 3. 颜色渐变（安全版）
    const colors = colorSchemes?.[0]?.colors || [];

    const safePick = (i) => colors[i] || colors[0] || "#1B2973";

    const colorStops = [safePick(0), safePick(4), safePick(8), safePick(12)];

    const colorscale = colorStops.map((c, i) => [
      i / (colorStops.length - 1),
      c,
    ]);

    if (colorscale.length < 2) {
      colorscale.push([1, safePick(0)]);
    }

    // ✅ 4. 映射颜色
    const colorValues = rawColorData.map((v) => mapping[v]);

    // ⚠️ 性能优化
    const pointCount = scatterData.xData.length;
    const markerSize = pointCount > 5000 ? 3 : 6;

    // ✅ 5. scatter trace
    const scatterTrace = {
      x: scatterData.xData,
      y: scatterData.yData,
      type: "scattergl",
      mode: "markers",
      name: scatterData.engineName,
      marker: {
        color: colorValues,
        colorscale,
        size: markerSize,
        colorbar: {
          title: { text: scatterData.colorbartitle || "时间" },
          tickvals,
          ticktext,
        },
        line: {
          color: "#fff",
          width: 0.3,
        },
      },
      customdata: rawColorData,
      hovertemplate:
        `${data.xaixs}: %{x}<br>` +
        `${data.yaixs}: %{y}<br>` +
        `时间: %{customdata}<extra></extra>`,
    };

    // ✅ 6. 合同曲线（优化：避免空对象加入🔥）
    const traces = [scatterTrace];

    if (lineData?.xData?.length && lineData?.yData?.length) {
      traces.push({
        x: lineData.xData,
        y: lineData.yData,
        type: "scatter",
        mode: "lines+markers",
        name: "合同功率曲线",
        line: { color: "red" },
        marker: { color: "red", size: 4 },
      });
    }

    // ✅ 7. layout
    const layout = {
      title: {
        text: scatterData.title || "散点图",
        font: { size: 16 },
      },
      xaxis: {
        title: data.xaixs,
        gridcolor: "rgb(255,255,255)",
        tickcolor: "rgb(255,255,255)",
        backgroundcolor: "#e5ecf6",
        showbackground: true,
        showline: true, // ✅ 显示 X 轴轴线
        zeroline: false,
        linecolor: "#ffffff", // ✅ X 轴轴线颜色设为白色
      },
      yaxis: {
        title: data.yaixs,
        gridcolor: "rgb(255,255,255)",
        tickcolor: "rgb(255,255,255)",
        backgroundcolor: "#e5ecf6",
        showbackground: true,
        showline: true, // ✅ 显示 X 轴轴线
        zeroline: false,
        linecolor: "#ffffff", // ✅ X 轴轴线颜色设为白色
      },
      showlegend: false,
      plot_bgcolor: "#e5ecf6",
      paper_bgcolor: "#e5ecf6",
    };

    // ✅ 8. 渲染
    const url = await renderChart({
      traces,
      layout,
      bucketName,
      objectName,
    });

    return url;
  } catch (error) {
    console.error("❌ 生成2D散点图失败:", error);
    throw error;
  }
};