书籍列表接口新增参数

internal/consts/ads.go

@@ -0,0 +1,38 @@
+package consts
+
+// AdState 广告状态枚举
+type AdState int
+
+const (
+	StateFetchFailed    AdState = iota + 1 // 拉取失败
+	StateFetchSuccess                      // 拉取成功
+	StateDisplayFailed                     // 显示失败
+	StateDisplaySuccess                    // 显示成功
+	StateNotWatched                        // 未观看完成
+	StateWatched                           // 观看完成
+	StateNotClicked                        // 未点击
+	StateClicked                           // 已点击
+	StateNotDownloaded                     // 未下载
+	StateDownloaded                        // 已下载
+)
+
+// GetStateDescription 获取状态描述
+func GetStateDescription(state AdState) string {
+	descriptions := map[AdState]string{
+		StateFetchFailed:    "拉取失败",
+		StateFetchSuccess:   "拉取成功",
+		StateDisplayFailed:  "显示失败",
+		StateDisplaySuccess: "显示成功",
+		StateNotWatched:     "未观看完成",
+		StateWatched:        "观看完成",
+		StateNotClicked:     "未点击",
+		StateClicked:        "已点击",
+		StateNotDownloaded:  "未下载",
+		StateDownloaded:     "已下载",
+	}
+
+	if desc, exists := descriptions[state]; exists {
+		return desc
+	}
+	return "未知状态"
+}