refactor: 将redis各个业务分离

backend/internal/middleware/redis/zset.go

@@ -0,0 +1,59 @@
+package redis
+
+import (
+	"context"
+	"time"
+
+	redis "github.com/redis/go-redis/v9"
+)
+
+func (c *Client) ZincrBy(ctx context.Context, key string, member string, score float64) error {
+	if c == nil || c.rdb == nil {
+		return nil
+	}
+	return c.rdb.ZIncrBy(ctx, key, score, member).Err()
+}
+
+func (c *Client) Expire(ctx context.Context, key string, ttl time.Duration) error {
+	if c == nil || c.rdb == nil {
+		return nil
+	}
+	return c.rdb.Expire(ctx, key, ttl).Err()
+}
+
+func (c *Client) ZUnionStore(ctx context.Context, dst string, keys []string, aggregate string) error {
+	if c == nil || c.rdb == nil {
+		return nil
+	}
+	return c.rdb.ZUnionStore(ctx, dst, &redis.ZStore{
+		Keys:      keys,
+		Aggregate: aggregate,
+	}).Err()
+}
+
+func (c *Client) Exists(ctx context.Context, key string) (bool, error) {
+	if c == nil || c.rdb == nil {
+		return false, nil
+	}
+	n, err := c.rdb.Exists(ctx, key).Result()
+	return n > 0, err
+}
+
+func (c *Client) ZRevRange(ctx context.Context, key string, start, stop int64) ([]string, error) {
+	if c == nil || c.rdb == nil {
+		return nil, nil
+	}
+	return c.rdb.ZRevRange(ctx, key, start, stop).Result()
+}
+
+func (c *Client) ZRevRangeByScore(ctx context.Context, key string, max, min string, offset, count int64) ([]string, error) {
+	if c == nil || c.rdb == nil {
+		return nil, nil
+	}
+	return c.rdb.ZRevRangeByScore(ctx, key, &redis.ZRangeBy{
+		Max:    max,
+		Min:    min,
+		Offset: offset,
+		Count:  count,
+	}).Result()
+}