package sea

import (
	"os"
	"fmt"
	"errors"

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

// ============= SEA ============

type Sea struct {
	db *sqlx.DB
}

func Connect() (*Sea, error) {
	user := os.Getenv("SEA_USER")
	if user == "" {
		return nil, errors.New("Не установлена переменная SEA_USER")
	}

	password := os.Getenv("SEA_PASSWORD")
	if password == "" {
		return nil, errors.New("Не установлена переменная SEA_PASSWORD")
	}

	db, err := openDB(user, password)
	if err != nil {
		return nil, err
	}
	sea := Sea{db: db}
	return &sea, nil
}

func openDB(user, password string) (*sqlx.DB, error) {
	conn := fmt.Sprintf("%s:%s@(xigmanas:3306)/sea", user, password)
	db, err := sqlx.Open("mysql", conn)
	if err != nil {
		return nil, err
	}
	return db, nil
}

// ============= ALBUM ============

type Album struct {
	Seria string
	Cnt   int
	Hash  string
}

func (s *Sea) Albums() ([]Album, error) {
	cmd := "call getAlbums()"
	var albums []Album
	err := s.db.Select(&albums, cmd)
	if err != nil {
		return nil, err
	}
	return albums, nil
}