/
main.go
190 lines (152 loc) · 4.14 KB
/
main.go
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package main
import (
"encoding/json"
"github.com/DanLB/tictactoe/game"
"io/ioutil"
"net/http"
"log"
"github.com/nu7hatch/gouuid"
"github.com/daaku/go.httpgzip"
)
//Map of Game ID to Game
var gameMap = make(map[string]game.Game)
var waitingGames = make(chan string, 100) //Stores the gameId
var nextPlayerId uint32 = 10001
func main() {
initLogging()
newGame := game.NewGame()
newGame.GameId = generateGameId()
newGame.PlayerX = 10000
newGame.TurnId = newGame.PlayerX;
gameMap[newGame.GameId] = newGame
waitingGames <- newGame.GameId
game.Log("Starting the server on port 80")
http.Handle("/", httpgzip.NewHandler(http.FileServer(http.Dir("./static/"))))
http.HandleFunc("/tictactoe", index)
http.HandleFunc("/tictactoe/register", newRegistration)
http.HandleFunc("/tictactoe/forfeit", forfeit)
http.HandleFunc("/tictactoe/turn", turnReceived)
http.ListenAndServe(":80", nil)
}
func initLogging() {
err := game.Init()
if err != nil {
log.Fatal(err.Error)
}
}
func generateGameId() string {
u4, err := uuid.NewV4()
if err != nil {
log.Println("error:", err.Error())
return ""
}
uuid := u4.String()
game.Log("Generating game ID: " + uuid)
return uuid
}
func index(w http.ResponseWriter, r *http.Request) {
w.Write([]byte("Hello World"))
}
func forfeit(w http.ResponseWriter, r *http.Request) {
if r.Body == nil {
w.WriteHeader(400);
results := game.Results{Error: "Game ID and Player ID is required."}
jsonResults, err := json.Marshal(results)
if err != nil {
handleError(w, err.Error())
return
}
w.Write(jsonResults)
return
}
body, err := ioutil.ReadAll(r.Body)
if err != nil {
handleError(w, err.Error())
return
}
defer r.Body.Close()
var forfeiter game.Turn
json.Unmarshal(body, &forfeiter)
game.Log("Player " + string(forfeiter.PlayerId) + " forfeited.")
delete(gameMap, forfeiter.GameId)
}
// func newGame(w http.ResponseWriter, r *http.Request) {
// //todo constructor to generate game.
// newGame := game.NewGame()
// newGame.GameId = generateGameId()
// //todo create getNextPlayerId()
// // newGame.PlayerX = nextPlayerId++;
// newGame.TurnId = newGame.PlayerX;
// gameMap[newGame.GameId] = newGame
// waitingGames <- newGame.GameId
// game.Log("New game, currently " + len(waitingGames) + " waiting games.")
// }
func newRegistration(w http.ResponseWriter, r *http.Request) {
select {
case gameId := <- waitingGames:
gameToPlay := gameMap[gameId]
gameToPlay.PlayerY = nextPlayerId
gameMap[gameId] = gameToPlay
jsonResults, err := json.Marshal(game.Info{
GameId: gameToPlay.GameId,
PlayerId: gameToPlay.PlayerY,
OpponentId: gameToPlay.PlayerX,
PlayerX: gameToPlay.PlayerX,
})
if err != nil {
handleError(w, err.Error())
} else {
nextPlayerId++
w.Write(jsonResults)
return
}
default:
newGame := game.NewGame()
newGame.GameId = generateGameId()
newGame.PlayerX = nextPlayerId
nextPlayerId = nextPlayerId + 1
newGame.TurnId = newGame.PlayerX;
gameMap[newGame.GameId] = newGame
waitingGames <- newGame.GameId
newRegistration(w, r)
}
}
func turnReceived(w http.ResponseWriter, r *http.Request) {
if r.Body == nil {
return
}
body, err := ioutil.ReadAll(r.Body)
if err != nil {
handleError(w, err.Error())
return
}
defer r.Body.Close()
var currentTurn game.Turn
err = json.Unmarshal(body, ¤tTurn)
if err != nil {
handleError(w, err.Error())
return
}
currentGame, ok := gameMap[currentTurn.GameId]
var results game.Results
if ok == false {
results = game.Results{Error: "Game does not exist"}
} else {
game.Log(currentTurn)
results = currentGame.HandleTurn(currentTurn)
if results.Winner > 0 {
delete(gameMap, currentTurn.GameId)
} else {
gameMap[currentTurn.GameId] = currentGame
}
}
jsonResults, err := json.Marshal(results)
if err != nil {
handleError(w, err.Error())
return
}
w.Write(jsonResults)
}
func handleError(w http.ResponseWriter, err string) {
http.Error(w, err, http.StatusInternalServerError)
}