package api

import (
	"database/sql"
	"net/http"

	"gitea.konchin.com/ytshih/inp2025/game/backend/middlewares"
	"github.com/uptrace/bunrouter"
)

type GetUserOutput struct {
	Username string `json:"username"`
}

// GetUser
//
//	@Accept		json
//	@Param		username	query	string	true	"Username to be queried"
//	@Success	200
//	@Failure	400
//	@Router		/api/user [get]
func (self *Handlers) GetUser(
	w http.ResponseWriter,
	req bunrouter.Request,
) error {
	ctx := req.Context()

	username := req.URL.Query().Get("username")
	if username == "" {
		return middlewares.HTTPError{
			StatusCode: http.StatusBadRequest,
			Message:    "must provide username",
		}
	}

	user, err := self.db.GetUser(ctx, username)
	if err != nil {
		if err == sql.ErrNoRows {
			return middlewares.HTTPError{
				StatusCode:  http.StatusNotFound,
				Message:     "user not exist",
				OriginError: err,
			}
		}
		return middlewares.HTTPError{
			StatusCode:  http.StatusInternalServerError,
			Message:     "failed to get user",
			OriginError: err,
		}
	}

	return bunrouter.JSON(w, GetUserOutput{
		Username: user.Username,
	})
}