Initial commit

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>

skd/skdg/shortrecommend.go

@@ -0,0 +1,49 @@
+package skdg
+
+const (
+	defaultShortRecommendCron        = "CRON_TZ=Asia/Shanghai 0 5/10 * * * ?"
+	defaultShortRecommendKeyTTLHours = 72
+	defaultProdInitializationLimit   = 50_000
+)
+
+// ShortRecommendConfig 控制定时队列生成。Enabled 未配置时默认启用。
+type ShortRecommendConfig struct {
+	Enabled                 *bool  `json:"enabled"`
+	Cron                    string `json:"cron"`
+	KeyTTLHours             int    `json:"keyTTLHours"`
+	MaxInitializationWrites *int64 `json:"maxInitializationWrites"`
+}
+
+func (c *GlobalConfig) ShortRecommendEnabled() bool {
+	return c == nil || c.ShortRecommend.Enabled == nil || *c.ShortRecommend.Enabled
+}
+
+func (c *GlobalConfig) ShortRecommendCron() string {
+	if c == nil || c.ShortRecommend.Cron == "" {
+		return defaultShortRecommendCron
+	}
+	return c.ShortRecommend.Cron
+}
+
+func (c *GlobalConfig) ShortRecommendKeyTTL() int {
+	if c == nil || c.ShortRecommend.KeyTTLHours <= 0 {
+		return defaultShortRecommendKeyTTLHours
+	}
+	return c.ShortRecommend.KeyTTLHours
+}
+
+func (c *GlobalConfig) ShortRecommendInitializationLimit() int64 {
+	if c == nil {
+		return 0
+	}
+	if c.ShortRecommend.MaxInitializationWrites != nil {
+		if *c.ShortRecommend.MaxInitializationWrites < 0 {
+			return 0
+		}
+		return *c.ShortRecommend.MaxInitializationWrites
+	}
+	if c.Base.Env == "prod" {
+		return defaultProdInitializationLimit
+	}
+	return 0
+}