package scrobbler

import (
	"database/sql"
	"fmt"
	"os"

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

func initdb(dbpath string) error {
	if _, err := os.Stat(dbpath); err == nil {
		return fmt.Errorf("%s already exists", dbpath)
	}

	db, err := sql.Open("sqlite3", dbpath)
	if err != nil {
		return err
	}
	defer db.Close()

	sqlStmt := `create table records (id text primary key,
				title text,
				artist text,
                album text,
                duration int,
                playtime int,
                time timestamp
			);`

	_, err = db.Exec(sqlStmt)
	if err != nil {
		return err
	}

	return nil
}

func opendatabase(dbpath string) (*sql.DB, error) {
	var err error
	_, err = os.Stat(dbpath)

	if err != nil {
		if err := initdb(dbpath); err != nil {
			return nil, err
		}
	}

	db, err := sql.Open("sqlite3", dbpath)
	if err != nil {
		return nil, fmt.Errorf("unable to open database: %s", err)
	}

	return db, nil
}