package storage

import (
	"context"
	"git.sch9.ru/new_gate/ms-tester/internal/models"
	"github.com/jmoiron/sqlx"
	"go.uber.org/zap"
)

type LanguageStorage struct {
	db     *sqlx.DB
	logger *zap.Logger
}

func NewLanguageStorage(db *sqlx.DB, logger *zap.Logger) *LanguageStorage {
	return &LanguageStorage{
		db:     db,
		logger: logger,
	}
}

func (storage *LanguageStorage) CreateLanguage(ctx context.Context, language *models.Language) (int32, error) {
	query := storage.db.Rebind(`
INSERT INTO languages
    (name,build_file_hash,execute_file_hash)
VALUES (?, ?, ?)
RETURNING id
`)

	rows, err := storage.db.QueryxContext(
		ctx,
		query,
		language.Name,
		"", //FIXME
		"",
	)
	if err != nil {
		return 0, handlePgErr(err)
	}

	defer rows.Close()
	var id int32
	err = rows.StructScan(&id)
	if err != nil {
		return 0, handlePgErr(err)
	}

	return id, nil

}

func (storage *LanguageStorage) ReadLanguageById(ctx context.Context, id int32) (*models.Language, error) {
	var language models.Language
	query := storage.db.Rebind("SELECT * from languages WHERE id=? LIMIT 1")
	err := storage.db.GetContext(ctx, &language, query, id)
	if err != nil {
		return nil, handlePgErr(err)
	}
	return &language, nil
}

func (storage *LanguageStorage) UpdateLanguage(ctx context.Context, id int32, language models.Language) error {
	query := storage.db.Rebind("UPDATE languages SET name=?") //FIXME add build file and execute file loading
	_, err := storage.db.ExecContext(ctx, query, language.Name)
	if err != nil {
		return handlePgErr(err)
	}

	return nil
}

func (storage *LanguageStorage) DeleteLanguage(ctx context.Context, id int32) error {
	query := storage.db.Rebind("DELETE FROM languages WHERE id=?")
	_, err := storage.db.ExecContext(ctx, query, id)
	if err != nil {
		return handlePgErr(err)
	}

	return nil
}