package repositories

import (
	"context"
	"errors"
	"wm-backend/internal/mapper"
	"wm-backend/internal/models"
	db "wm-backend/sqlc_gen"

	"github.com/jackc/pgx/v5"
)

// GetUserByEmail retrieves a user by their email address using SQLC-generated queries.
// Returns nil, nil if no user is found.
func GetUserByEmail(ctx context.Context, queries *db.Queries, email string) (*models.User, error) {
	user, err := queries.GetUserByEmail(ctx, email)
	if err != nil {
		if errors.Is(err, pgx.ErrNoRows) {
			return nil, nil
		}
		return nil, err
	}
	return mapper.ToDomainUser(user), nil
}

func GetUserByUsername(ctx context.Context, queries *db.Queries, username string) (*models.User, error) {
	user, err := queries.GetUserByUsername(ctx, username)
	if err != nil {
		if errors.Is(err, pgx.ErrNoRows) {
			return nil, nil
		}
		return nil, err
	}
	return mapper.ToDomainUser(user), nil
}

// CreateUser inserts a new user using SQLC-generated queries.
// Returns the created user's ID as a string.
func CreateUser(ctx context.Context, queries *db.Queries, params db.CreateUserParams) (string, error) {
	id, err := queries.CreateUser(ctx, params)
	if err != nil {
		return "", err
	}
	return id.String(), nil
}