gralias/handlers/game.go

package handlers

import (
	"context"
	"errors"
	"fmt"
	"gralias/models"
	"html/template"
	"net/http"
	"strconv"
	"strings"
)

func HandleCreateRoom(w http.ResponseWriter, r *http.Request) {
	// parse payload
	payload := &models.RoomReq{
		RoomPass: r.PostFormValue("room_pass"),
		RoomName: r.PostFormValue("room_name"),
	}
	// create a room
	room, err := createRoom(r.Context(), payload)
	if err != nil {
		msg := "failed to create a room"
		log.Error(msg, "error", err)
		abortWithError(w, msg)
		return
	}
	ctx := context.WithValue(r.Context(), "current_room", room.ID)
	fi, err := getFullInfoByCtx(ctx)
	if err != nil {
		msg := "failed to get full info from ctx"
		log.Error(msg, "error", err)
		abortWithError(w, msg)
		return
	}
	fi.State.RoomID = room.ID
	fi.Room = room
	fi.Room.IsPublic = true // hardcode for local test; move to form
	if err := saveFullInfo(fi); err != nil {
		msg := "failed to set current room to session"
		log.Error(msg, "error", err)
		abortWithError(w, msg)
		return
	}
	notify(models.NotifyRoomListUpdate, "")
	tmpl, err := template.ParseGlob("components/*.html")
	if err != nil {
		abortWithError(w, err.Error())
		return
	}
	if err := tmpl.ExecuteTemplate(w, "base", fi); err != nil {
		log.Error("failed to execute base template", "error", err)
	}
}

func HandleJoinTeam(w http.ResponseWriter, r *http.Request) {
	if err := r.ParseForm(); err != nil {
		log.Error("failed to parse form", "error", err)
		abortWithError(w, err.Error())
		return
	}
	team := r.PostFormValue("team")
	role := r.PostFormValue("role")
	if team == "" || role == "" {
		msg := "missing team or role"
		log.Error(msg)
		abortWithError(w, msg)
		return
	}
	// get username
	fi, err := getFullInfoByCtx(r.Context())
	if err != nil {
		abortWithError(w, err.Error())
		return
	}
	if fi.Room.IsRunning && role == "mime" {
		err = errors.New("cannot join as mime when game is running")
		abortWithError(w, err.Error())
		return
	}
	fi, err = joinTeam(r.Context(), role, team)
	if err != nil {
		abortWithError(w, err.Error())
		return
	}
	// reveal all cards
	if fi.State.Role == "mime" {
		fi.Room.MimeView() // there must be a better way
	} else {
		fi.Room.GuesserView()
	}
	// return html
	tmpl, err := template.ParseGlob("components/*.html")
	if err != nil {
		abortWithError(w, err.Error())
		return
	}
	notify(models.NotifyRoomUpdatePrefix+fi.Room.ID, "")
	if err := tmpl.ExecuteTemplate(w, "base", fi); err != nil {
		log.Error("failed to execute base template", "error", err)
	}
}

func HandleEndTurn(w http.ResponseWriter, r *http.Request) {
	// get username
	fi, err := getFullInfoByCtx(r.Context())
	if err != nil {
		abortWithError(w, err.Error())
		return
	}
	// check if one who pressed it is from the team who has the turn
	if fi.Room.TeamTurn != fi.State.Team {
		msg := fmt.Sprintln("unexpected team turn:" + fi.Room.TeamTurn)
		abortWithError(w, msg)
		return
	}
	fi.Room.ChangeTurn()
	fi.Room.MimeDone = false
	if err := saveFullInfo(fi); err != nil {
		abortWithError(w, err.Error())
		return
	}
	// return html
	tmpl, err := template.ParseGlob("components/*.html")
	if err != nil {
		abortWithError(w, err.Error())
		return
	}
	notifyBotIfNeeded(fi)
	notify(models.NotifyRoomUpdatePrefix+fi.Room.ID, "")
	if err := tmpl.ExecuteTemplate(w, "base", fi); err != nil {
		log.Error("failed to execute base template", "error", err)
	}
}

func HandleStartGame(w http.ResponseWriter, r *http.Request) {
	fi, err := getFullInfoByCtx(r.Context())
	if err != nil {
		abortWithError(w, err.Error())
		return
	}
	// check if enough players
	if err := fi.Room.CanStart(); err != nil {
		abortWithError(w, err.Error())
		return
	}
	fi.Room.IsRunning = true
	fi.Room.IsOver = false
	fi.Room.TeamTurn = "blue"
	fi.Room.OpenedThisTurn = 0
	fi.Room.ThisTurnLimit = 0
	loadCards(fi.Room)
	fi.Room.UpdateCounter()
	fi.Room.TeamWon = ""
	action := models.Action{
		Actor:      fi.State.Username,
		ActorColor: string(fi.State.Team),
		WordColor:  string(fi.State.Team),
		Action:     models.ActionTypeGameStarted,
	}
	fi.Room.ActionHistory = append(fi.Room.ActionHistory, action)
	if err := saveFullInfo(fi); err != nil {
		abortWithError(w, err.Error())
		return
	}
	// reveal all cards
	if fi.State.Role == "mime" {
		fi.Room.MimeView()
	} else {
		fi.Room.GuesserView()
	}
	// return html
	tmpl, err := template.ParseGlob("components/*.html")
	if err != nil {
		abortWithError(w, err.Error())
		return
	}
	notifyBotIfNeeded(fi)
	// to update only the room that should be updated
	notify(models.NotifyRoomUpdatePrefix+fi.Room.ID, "")
	// notify(models.NotifyBacklogPrefix+fi.Room.ID, "game started")
	if err := tmpl.ExecuteTemplate(w, "room", fi); err != nil {
		log.Error("failed to execute room template", "error", err)
	}
}

func HandleJoinRoom(w http.ResponseWriter, r *http.Request) {
	roomID := r.URL.Query().Get("id")
	room, err := getRoomByID(roomID)
	if err != nil {
		abortWithError(w, err.Error())
		return
	}
	tmpl, err := template.ParseGlob("components/*.html")
	if err != nil {
		abortWithError(w, err.Error())
		return
	}
	fi, err := getFullInfoByCtx(r.Context())
	if err != nil {
		// INFO: if non-loggined user join: prompt to login
		fi = &models.FullInfo{}
		fi.LinkLogin = roomID
		if err := tmpl.ExecuteTemplate(w, "base", fi); err != nil {
			log.Error("failed to execute base template", "error", err)
		}
		// abortWithError(w, err.Error())
		return
	}
	// room.PlayerList = append(room.PlayerList, fi.State.Username)
	fi.State.RoomID = room.ID
	fi.Room = room
	fi.List = nil
	if err := saveFullInfo(fi); err != nil {
		abortWithError(w, err.Error())
		return
	}
	if err := tmpl.ExecuteTemplate(w, "room", fi); err != nil {
		log.Error("failed to execute room template", "error", err)
	}
}

func HandleGiveClue(w http.ResponseWriter, r *http.Request) {
	if err := r.ParseForm(); err != nil {
		abortWithError(w, err.Error())
		return
	}
	clue := r.PostFormValue("clue")
	num := r.PostFormValue("number")
	fi, err := getFullInfoByCtx(r.Context())
	if err != nil {
		abortWithError(w, err.Error())
		return
	}
	guessLimitU64, err := strconv.ParseUint(num, 10, 8)
	if err != nil {
		abortWithError(w, err.Error())
		return
	}
	// validations ===
	if fi.State.Team != models.UserTeam(fi.Room.TeamTurn) {
		err = errors.New("not your team's move")
		abortWithError(w, err.Error())
		return
	}
	if fi.State.Role != "mime" {
		err = errors.New("need to be mime to open the card")
		abortWithError(w, err.Error())
		return
	}
	if fi.Room.MimeDone {
		// team already have a clue
		abortWithError(w, "your team already has a clue")
		return
	}
	// check if the clue is the same as one of the existing words
	for _, card := range fi.Room.Cards {
		if strings.EqualFold(card.Word, clue) {
			msg := fmt.Sprintf("cannot use existing word (%s) as a clue", clue)
			abortWithError(w, msg)
			return
		}
	}
	// ===
	action := models.Action{
		Actor:      fi.State.Username,
		ActorColor: string(fi.State.Team),
		WordColor:  string(fi.State.Team),
		Action:     models.ActionTypeClue,
		Word:       clue,
		Number:     num,
	}
	fi.Room.ActionHistory = append(fi.Room.ActionHistory, action)
	fi.Room.MimeDone = true
	fi.Room.ThisTurnLimit = uint8(guessLimitU64) + 1
	if guessLimitU64 == 0 {
		fi.Room.ThisTurnLimit = 9
	}
	fi.Room.OpenedThisTurn = 0
	log.Debug("given clue", "clue", clue, "limit", fi.Room.ThisTurnLimit)
	notify(models.NotifyBacklogPrefix+fi.Room.ID, clue+num)
	notifyBotIfNeeded(fi)
	if err := saveFullInfo(fi); err != nil {
		abortWithError(w, err.Error())
		return
	}
}

func HandleRenotifyBot(w http.ResponseWriter, r *http.Request) {
	fi, err := getFullInfoByCtx(r.Context())
	if err != nil {
		abortWithError(w, err.Error())
		return
	}
	notifyBotIfNeeded(fi)
}