package main

import (
	"fmt"
	"log"

	"gorm.io/driver/mysql"
	"gorm.io/gorm"
)

const (
	DbDSN = "root:bindbox2025kdy@tcp(150.158.78.154:3306)/dev_game?charset=utf8mb4&parseTime=True&loc=Local"
)

func main() {
	db, err := gorm.Open(mysql.Open(DbDSN), &gorm.Config{})
	if err != nil {
		log.Fatalf("DB connection failed: %v", err)
	}

	fmt.Println("Checking User 9090 coupons status...")
	var results []map[string]interface{}
	db.Raw("SELECT id, coupon_id, status, balance_amount, valid_end FROM user_coupons WHERE user_id = 9090").Scan(&results)
	for _, res := range results {
		fmt.Printf("ID: %v, CouponID: %v, Status: %v, Balance: %v, ValidEnd: %v\n",
			res["id"], res["coupon_id"], res["status"], res["balance_amount"], res["valid_end"])
	}

	fmt.Println("\nChecking for coupons that are status=3 but balance=0 and not yet time-expired...")
	var count int64
	db.Raw("SELECT count(*) FROM user_coupons WHERE status = 3 AND balance_amount = 0 AND valid_end > NOW()").Scan(&count)
	fmt.Printf("Found %d such coupons.\n", count)
}