feat: Enhance low resolution character retrieval with customizable page size

server/api/resource.go

@@ -349,6 +349,22 @@ func handleGetLowResolutionCharacters(c fiber.Ctx) error {
 		return model.NewRequestError("Invalid page number")
 	}
 
+	// 支持自定义页面大小，默认50，最大1000
+	pageSizeStr := c.Query("page_size")
+	if pageSizeStr == "" {
+		pageSizeStr = "50"
+	}
+	pageSize, err := strconv.Atoi(pageSizeStr)
+	if err != nil {
+		return model.NewRequestError("Invalid page_size parameter")
+	}
+	if pageSize > 1000 {
+		pageSize = 1000 // 限制最大页面大小
+	}
+	if pageSize < 1 {
+		pageSize = 1
+	}
+
 	maxWidthStr := c.Query("max_width")
 	if maxWidthStr == "" {
 		maxWidthStr = "800" // 默认最大宽度800px
@@ -367,7 +383,7 @@ func handleGetLowResolutionCharacters(c fiber.Ctx) error {
 		return model.NewRequestError("Invalid max_height parameter")
 	}
 
-	characters, totalPages, err := service.GetLowResolutionCharacters(page, maxWidth, maxHeight)
+	characters, totalPages, err := service.GetLowResolutionCharacters(page, pageSize, maxWidth, maxHeight)
 	if err != nil {
 		return err
 	}

server/service/resource.go

@@ -803,12 +803,16 @@ func UpdateCharacterImage(uid, resourceID, characterID, imageID uint) error {
 }
 
 // GetLowResolutionCharacters 获取低清晰度的角色图片
-func GetLowResolutionCharacters(page int, maxWidth, maxHeight int) ([]model.LowResCharacterView, int, error) {
-	const pageSize = 50 // 每页50个角色
-
+func GetLowResolutionCharacters(page int, pageSize int, maxWidth, maxHeight int) ([]model.LowResCharacterView, int, error) {
 	if page <= 0 {
 		page = 1
 	}
+	if pageSize <= 0 {
+		pageSize = 50 // 默认每页50个角色
+	}
+	if pageSize > 1000 {
+		pageSize = 1000 // 限制最大页面大小
+	}
 
 	offset := (page - 1) * pageSize