package sqldb

import (
	"dashboard/dao/sqldb/mysql"
	"dashboard/dao/sqldb/sqlite"
	"dashboard/models"
	"dashboard/settings"
	"fmt"
	"os"
	"path/filepath"
	"strings"

	_ "github.com/go-sql-driver/mysql"
	"github.com/jmoiron/sqlx"
	_ "github.com/mattn/go-sqlite3"
)

const (
	mysqlDsn = "%s:%s@tcp(%s:%d)/%s?charset=utf8mb4&parseTime=True&loc=Local"
)

func NewDb(conf *settings.SqlConfig) (BaseDb, error) {
	if strings.Contains(conf.Type, "sqlite") {
		cleanDir := filepath.Clean(conf.Database)

		// 确保目标目录存在
		if err := os.MkdirAll(filepath.Dir(cleanDir), 0755); err != nil {
			return nil, err
		}

		db, err := sqlx.Connect("sqlite3", conf.Database)
		if err != nil {
			return nil, err
		}

		return &sqlite.Sqlite3{Db: db}, nil
	}

	if strings.Contains(conf.Type, "mysql") || strings.Contains(conf.Type, "maridb") {
		dsn := fmt.Sprintf(mysqlDsn, conf.Username, conf.Password, conf.Host, conf.Port, conf.Database)
		db, err := sqlx.Connect("mysql", dsn)
		if err != nil {
			return nil, err
		}

		db.SetMaxOpenConns(conf.MaxConns)

		return &mysql.Mysql{Db: db}, nil
	}

	return nil, models.ErrorSqlInitErr
}