package handlers

import (
	"context"
	oapi "nyanimedb/api"
	sqlc "nyanimedb/sql"
	"strconv"

	"github.com/jackc/pgx/v5"
	"github.com/oapi-codegen/runtime/types"
)

type Server struct {
	db *sqlc.Queries
}

func NewServer(db *sqlc.Queries) Server {
	return Server{db: db}
}

func parseInt64(s string) (int32, error) {
	i, err := strconv.ParseInt(s, 10, 64)
	return int32(i), err
}

func mapUser(u sqlc.GetUserByIDRow) oapi.User {
	return oapi.User{
		AvatarId:     u.AvatarID,
		CreationDate: u.CreationDate,
		DispName:     u.DispName,
		Id:           &u.ID,
		Mail:         (*types.Email)(u.Mail),
		Nickname:     u.Nickname,
		UserDesc:     u.UserDesc,
	}
}

func (s Server) GetUsersUserId(ctx context.Context, req oapi.GetUsersUserIdRequestObject) (oapi.GetUsersUserIdResponseObject, error) {
	userID, err := parseInt64(req.UserId)
	if err != nil {
		return oapi.GetUsersUserId404Response{}, nil
	}
	user, err := s.db.GetUserByID(context.TODO(), int64(userID))
	if err != nil {
		if err == pgx.ErrNoRows {
			return oapi.GetUsersUserId404Response{}, nil
		}
		return nil, err
	}
	return oapi.GetUsersUserId200JSONResponse(mapUser(user)), nil
}