package redis

import (
	"common/log"
	"context"
	"errors"
	"time"
)

var ReleaseLockExpire = errors.New("release redis lock expire key")

func Acquire(ctx context.Context, key string, tag string, expiration time.Duration) (bool, error) {
	success, err := redisClient.SetNX(ctx, key, tag, expiration).Result()
	return success, err
}

func Release(ctx context.Context, key string, tag string) error {
	script := `  
    if redis.call("GET", KEYS[1]) == ARGV[1] then  
        return redis.call("DEL", KEYS[1])  
    else  
        return 0  
    end`

	// 执行 Lua 脚本
	result, err := redisClient.Eval(ctx, script, []string{key}, tag).Result()
	if err != nil {
		return err
	}
	// 检查返回值
	if result == int64(0) {
		log.Errorf("release redis lock expire key :%v", key)
		return ReleaseLockExpire
	}

	return nil
}