package wordle

import (
	"net/http"

	"gitea.konchin.com/ytshih/inp2025/game/server/middlewares"
	"gitea.konchin.com/ytshih/inp2025/game/types"
	"gitea.konchin.com/ytshih/inp2025/game/utils"
	"github.com/gorilla/websocket"
	"github.com/uptrace/bunrouter"
	"github.com/vmihailenco/msgpack/v5"
)

func gameFlow(
	dataCh chan types.WordleState,
	retCh chan error,
) {
	// TODO
}

func (self *handlers) WSGetState(
	w http.ResponseWriter,
	req bunrouter.Request,
) error {
	ctx := req.Context()

	c, err := upgrader.Upgrade(w, req, nil)
	if err != nil {
		return middlewares.HTTPError{
			StatusCode:  http.StatusInternalServerError,
			Message:     "failed to upgrade websocket",
			OriginError: err,
		}
	}
	defer c.Close()

	dataCh := make(chan types.WordleState)
	retCh := make(chan error)

	go gameFlow(dataCh, retCh)
	for {
		select {
		case err := <-retCh:
			if err != nil {
				return middlewares.HTTPError{
					StatusCode:  http.StatusInternalServerError,
					Message:     "wordle server error",
					OriginError: err,
				}
			}
			break
		case data := <-dataCh:
			b, err := msgpack.Marshal(data)
			if err != nil {
				return middlewares.HTTPError{
					StatusCode:  http.StatusInternalServerError,
					Message:     "failed to marshal data into msgpack",
					OriginError: err,
				}
			}
			c.WriteMessage(websocket.BinaryMessage, b)
		}
	}

	return utils.Success(w)
}