// Command migrate_refresh 一次性建表脚本（与 scripts/sql/*.sql 同源，手写 DDL 以保持与项目"SQL 托管表结构"约定一致）。
//
// 运行：go run ./scripts/migrate_refresh
// 可用环境变量 DB_DSN 覆盖连接串（默认 root:root@127.0.0.1:3306/db_dev）。
package main

import (
	"log"
	"os"

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

func main() {
	dsn := os.Getenv("DB_DSN")
	if dsn == "" {
		dsn = "root:root@tcp(127.0.0.1:3306)/db_dev?charset=utf8mb4&parseTime=True&loc=Local"
	}
	db, err := gorm.Open(mysql.Open(dsn), &gorm.Config{})
	if err != nil {
		log.Fatalf("open db: %v", err)
	}
	stmt := `CREATE TABLE IF NOT EXISTS refresh_tokens (
		id          BIGINT UNSIGNED NOT NULL AUTO_INCREMENT,
		user_id     INT UNSIGNED NOT NULL,
		token_hash  VARCHAR(64)  NOT NULL,
		expires_at  INT UNSIGNED NOT NULL DEFAULT 0,
		revoked     TINYINT UNSIGNED NOT NULL DEFAULT 0,
		user_agent  VARCHAR(255) NOT NULL DEFAULT '',
		ip          VARCHAR(64)  NOT NULL DEFAULT '',
		created_at  INT UNSIGNED NOT NULL DEFAULT 0,
		PRIMARY KEY (id),
		UNIQUE KEY uk_token_hash (token_hash),
		KEY idx_user_id (user_id)
	) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4;`
	if err := db.Exec(stmt).Error; err != nil {
		log.Fatalf("create refresh_tokens: %v", err)
	}
	log.Println("✓ refresh_tokens ready")
}