Function fetchReport

web/src/pages/Report.tsx:61–152

()

    if (!isPresetLoaded) return;

    const fetchReport = async () => {
      try {
        setIsLoading(true);
        setError(null);
        setReport("");
        setStatusMessage("准备生成报告...");

        const url = selectedPreset
          ? `/api/report?preset=${encodeURIComponent(selectedPreset)}`
          : "/api/report";

        setIsStreaming(true);

        const eventSource = new EventSource(
          url + (url.includes("?") ? "&" : "?") + "stream=true",
          {
            withCredentials: true,
          }
        );

        // Handle different event types
        eventSource.addEventListener("chunk", (event) => {
          try {
            const data = JSON.parse(event.data);
            setReport((prev) => (prev || "") + data.content);
          } catch (err) {
            console.log(err);
            // If it's not valid JSON, treat it as plain text
            setReport((prev) => (prev || "") + event.data);
          }
        });

        eventSource.addEventListener("status", (event) => {
          try {
            const data = JSON.parse(event.data);
            setStatusMessage(data.message);
          } catch (err) {
            console.error("Error parsing status message:", err);
          }
        });

        eventSource.addEventListener("complete", (event) => {
          try {
            const data = JSON.parse(event.data);
            if (data.message) {
              setReport(data.message);
            }
            setStatusMessage("报告生成完成");
            setTimeout(() => setStatusMessage(null), 3000);
          } catch (err) {
            console.error("Error parsing complete message:", err);
          } finally {
            eventSource.close();
            setIsStreaming(false);
            setIsLoading(false);
          }
        });