package mysql

import (
	"context"
	"database/sql"

	"secunda-test/internal/domain"
	"secunda-test/internal/service"
)

type UserRepository struct{ db *sql.DB }

func NewUserRepository(db *sql.DB) *UserRepository { return &UserRepository{db: db} }

func (r *UserRepository) Create(ctx context.Context, email, passwordHash, name string) (domain.User, error) {
	res, err := r.db.ExecContext(ctx, `INSERT INTO users(email,password_hash,name) VALUES(?,?,?)`, email, passwordHash, name)
	if err != nil {
		return domain.User{}, err
	}
	id, _ := res.LastInsertId()
	return r.FindByID(ctx, id)
}

func (r *UserRepository) FindByEmail(ctx context.Context, email string) (domain.User, error) {
	return r.scan(r.db.QueryRowContext(ctx, `SELECT id,email,password_hash,name,created_at FROM users WHERE email=?`, email))
}

func (r *UserRepository) FindByID(ctx context.Context, id int64) (domain.User, error) {
	return r.scan(r.db.QueryRowContext(ctx, `SELECT id,email,password_hash,name,created_at FROM users WHERE id=?`, id))
}

func (r *UserRepository) scan(row *sql.Row) (domain.User, error) {
	var u domain.User
	err := row.Scan(&u.ID, &u.Email, &u.PasswordHash, &u.Name, &u.CreatedAt)
	if err == sql.ErrNoRows {
		return domain.User{}, service.ErrNotFound
	}
	return u, err
}