package db

import (
	"database/sql"
	"fmt"
	"strings"

	_ "github.com/mattn/go-sqlite3"
)

type SqliteConnector struct {
}

func (c SqliteConnector) connect(config *DBConfig) *Connection {
	var params []string

	if len(config.Journal) > 0 {
		params = append(params, "_journal="+config.Journal)
	}
	if len(config.Locking) > 0 {
		params = append(params, "_locking="+config.Locking)
	}
	if len(config.Mode) > 0 {
		params = append(params, "mode="+config.Mode)
	}
	if config.Synchronous > 0 {
		params = append(params, fmt.Sprintf("_sync=%d", config.Synchronous))
	}

	var dsn string
	if len(config.Dsn) > 0 {
		dsn = config.Dsn
	} else {
		dsn = fmt.Sprintf("file:%s?%s", config.File, strings.Join(params, "&"))
	}
	db, err := sql.Open(DriverSqlite3, dsn)
	if err != nil {
		panic(err.Error())
	}
	err = db.Ping()
	if err != nil {
		panic(err)
	}

	return &Connection{
		RxDB:   db,
		DB:     db,
		Config: config,
	}
}