Replace RSC streaming with /api/ai Route Handler for Docker reliability.

Server Actions + createStreamableValue kept failing in production; fetch-based text stream avoids RSC serialization issues and shows readable error messages. Co-authored-by: Cursor <cursoragent@cursor.com>
2026-06-10 22:39:09 +08:00
parent 0f3bc2c50a
commit dba0245cb1
13 changed files with 342 additions and 384 deletions
@@ -0,0 +1,145 @@
+import {
+  calculateBazi,
+  formatBaziForPrompt,
+} from "@/lib/calc/bazi";
+import {
+  formatLiuyaoTimingForPrompt,
+  formatTimingForPrompt,
+  getTimingInfoWithLongitude,
+} from "@/lib/calc/timing";
+import {
+  extractChangeDetails,
+  extractZhangMingRen,
+  readGuaMarkdown,
+} from "@/lib/content/zhouyi";
+import {
+  BAZI_SYSTEM_PROMPT,
+  COMBINED_SYSTEM_PROMPT,
+  LIUYAO_SYSTEM_PROMPT,
+} from "@/lib/prompts";
+import type { AiRequestBody } from "@/lib/ai/types";
+
+export async function buildAiMessages(
+  body: AiRequestBody,
+): Promise<{ system: string; user: string }> {
+  switch (body.mode) {
+    case "liuyao": {
+      const input = body.payload;
+      const { timing, trueSolarTime } = getTimingInfoWithLongitude(
+        input.calcDate,
+        input.calcTime,
+        input.longitude,
+      );
+      const timingText = formatLiuyaoTimingForPrompt(
+        timing,
+        trueSolarTime,
+        input.locationName,
+        input.longitude,
+      );
+
+      let guaDetailText = "";
+      try {
+        const guaDetail = await readGuaMarkdown(input.guaMark);
+        const explain = extractZhangMingRen(guaDetail) ?? "";
+        const changeList = extractChangeDetails(
+          guaDetail,
+          input.guaChange,
+          input.guaTitle,
+        );
+        guaDetailText = [explain, changeList.join("\n")]
+          .filter(Boolean)
+          .join("\n");
+      } catch {
+        guaDetailText = "";
+      }
+
+      return {
+        system: LIUYAO_SYSTEM_PROMPT,
+        user: `${timingText}
+
+【卦象】
+${input.guaTitle} ${input.guaResult} ${input.guaChange}
+
+【问事】
+${input.question}
+
+${guaDetailText}`,
+      };
+    }
+    case "bazi": {
+      const { input, question, birthPlaceName } = body.payload;
+      const chart = calculateBazi(input);
+      const chartText = formatBaziForPrompt(chart);
+      return {
+        system: BAZI_SYSTEM_PROMPT,
+        user: `【出生时空】
+出生地：${birthPlaceName}
+
+【排盘信息】
+${chartText}
+
+【问事】
+${question}`,
+      };
+    }
+    case "combined": {
+      const input = body.payload;
+      const chart = calculateBazi(input.birth);
+      const chartText = formatBaziForPrompt(chart);
+      const { timing, trueSolarTime } = getTimingInfoWithLongitude(
+        input.calcDate,
+        input.calcTime,
+        input.currentLongitude,
+      );
+      const timingText = [
+        formatTimingForPrompt(
+          timing,
+          input.currentPlaceName,
+          input.currentLongitude,
+        ),
+        `真太阳时：${trueSolarTime}`,
+      ].join("\n");
+
+      let hexagramText = "";
+      if (input.hexagram) {
+        const { guaMark, guaTitle, guaResult, guaChange } = input.hexagram;
+        try {
+          const guaDetail = await readGuaMarkdown(guaMark);
+          const explain = extractZhangMingRen(guaDetail) ?? "";
+          const changeList = extractChangeDetails(
+            guaDetail,
+            guaChange,
+            guaTitle,
+          );
+          hexagramText = [
+            "",
+            "【卦象 · 可选六爻】",
+            `${guaTitle} ${guaResult} ${guaChange}`,
+            explain,
+            changeList.join("\n"),
+          ].join("\n");
+        } catch {
+          hexagramText = [
+            "",
+            "【卦象 · 可选六爻】",
+            `${input.hexagram.guaTitle} ${input.hexagram.guaResult} ${input.hexagram.guaChange}`,
+          ].join("\n");
+        }
+      }
+
+      return {
+        system: COMBINED_SYSTEM_PROMPT,
+        user: `【人和 · 八字排盘】
+出生地：${input.birthPlaceName}
+${chartText}
+
+${timingText}
+${hexagramText}
+
+【问事】
+${input.question}`,
+      };
+    }
+  }
+  throw new Error("未知 AI 模式");
+}