feat: 支持批量生图

Co-authored-by: Copilot <copilot@github.com>

server/api/images/history/[id]/public.post.ts

@@ -1,5 +1,8 @@
-// server/api/images/history/[id]/public.post.ts - 生图历史公开接口：将当前用户单条生图记录发布到广场。
-import type { IImagePublicStateData } from "#shared/types/openai";
+// server/api/images/history/[id]/public.post.ts - 生图历史公开接口：将当前用户单个批次中选定的图片发布到广场。
+import type {
+  IImagePublicStateData,
+  IImagePublicStateRequest
+} from "#shared/types/openai";
 import {
   clearNewApiAuthCookies,
   createApiLogger,
@@ -17,9 +20,10 @@ import {
  *
  * 流程：
  * 1. 从 httpOnly cookie 读取当前用户 ID。
- * 2. 只允许公开当前用户、未软删除的生图记录。
- * 3. 允许图片尚未归档时先创建公开记录；广场列表会等 hostedImageUrl 可用后再展示。
- * 4. 不返回上游响应、图床响应或内部错误详情。
+ * 2. 只允许公开当前用户、未软删除的生图批次记录。
+ * 3. 请求体可指定 imageIds 和 coverImageId；空 body 时兼容旧前端，默认公开全部成功图。
+ * 4. 允许图片尚未归档时先创建公开记录；广场列表会等封面 hostedImageUrl 可用后再展示。
+ * 5. 不返回上游响应、图床响应或内部错误详情。
  */
 export default defineEventHandler(async (event) => {
   const logger = createApiLogger("images.history.public.publish");
@@ -28,13 +32,32 @@ export default defineEventHandler(async (event) => {
   try {
     const userId = getNewApiUserIdFromCookie(event);
     const recordId = parseRecordId(getRouterParam(event, "id"));
+    const requestBody = await readBody<IImagePublicStateRequest | null>(event);
+
+    if (
+      requestBody === null ||
+      typeof requestBody !== "object" ||
+      Array.isArray(requestBody)
+    ) {
+      return createErrorResponse(400, "请求体必须是 JSON 对象");
+    }
+
+    const imageIds = parseImageIds(requestBody.imageIds);
+    const coverImageId = parseRecordId(requestBody.coverImageId);
 
     logger.info("公开参数", {
       userId,
-      recordId: recordId.toString()
+      recordId: recordId.toString(),
+      imageCount: imageIds.length,
+      coverImageId: coverImageId.toString()
     });
 
-    const result = await publishImageGenerationToPlaza(userId, recordId);
+    const result = await publishImageGenerationToPlaza({
+      userId,
+      recordId,
+      imageIds,
+      coverImageId
+    });
 
     if (!result) {
       logger.warn("记录不存在", {
@@ -52,9 +75,19 @@ export default defineEventHandler(async (event) => {
       return createErrorResponse(403, "图片已下架，无法公开");
     }
 
+    if (result === "INVALID_IMAGES") {
+      logger.warn("公开图片参数无效", {
+        userId,
+        recordId: recordId.toString()
+      });
+      return createErrorResponse(400, "请选择可公开的图片");
+    }
+
     logger.done("成功", {
       userId,
-      recordId: recordId.toString()
+      recordId: recordId.toString(),
+      imageCount: result.imageIds?.length ?? 0,
+      coverImageId: result.coverImageId
     });
 
     return createSuccessResponse<IImagePublicStateData>(result, "图片已公开");
@@ -68,7 +101,7 @@ export default defineEventHandler(async (event) => {
     }
 
     if (isBadRequestError(error)) {
-      return createErrorResponse(400, "生图记录 ID 不正确");
+      return createErrorResponse(400, getBadRequestMessage(error));
     }
 
     logger.error("失败", {
@@ -90,6 +123,17 @@ const parseRecordId = (value: string | undefined): bigint => {
   return BigInt(value);
 };
 
+const parseImageIds = (value: unknown): bigint[] => {
+  if (!Array.isArray(value) || value.length === 0) {
+    throw createError({
+      statusCode: 400,
+      statusMessage: "请选择可公开的图片"
+    });
+  }
+
+  return Array.from(new Set(value.map((item) => parseRecordId(String(item)))));
+};
+
 const isBadRequestError = (error: unknown): boolean => {
   return (
     typeof error === "object" &&
@@ -98,3 +142,17 @@ const isBadRequestError = (error: unknown): boolean => {
     error.statusCode === 400
   );
 };
+
+const getBadRequestMessage = (error: unknown) => {
+  if (
+    typeof error === "object" &&
+    error !== null &&
+    "statusMessage" in error &&
+    typeof error.statusMessage === "string" &&
+    error.statusMessage
+  ) {
+    return error.statusMessage;
+  }
+
+  return "生图记录 ID 不正确";
+};