Inititial commit

gamemanagment.go

@@ -0,0 +1,92 @@
+package main
+
+import (
+	"bytes"
+	"encoding/json"
+	"net/http"
+	"werwolf/core"
+)
+
+var games []JSON_Game
+
+type JSON_Game struct {
+	Token    string `json:"token"`
+	Username string `json:"username"`
+	Gamename string `json:"gamename"`
+}
+
+// getGame returns a reference to a game-Object identified by token
+func getGame(token string) (*JSON_Game, bool) {
+	for _, g := range games {
+		if g.Token == token {
+			return &g, true
+		}
+	}
+	return nil, false
+}
+
+// addGame adds a game-Object game to the list of active games or replaces an inactive game.
+func addGame(game JSON_Game) bool {
+	a := true
+	for _, g := range games {
+		if g.Token == "" {
+			g = game
+			a = false
+			return true
+		}
+	}
+	if a {
+		games = append(games, game)
+	}
+	return true
+}
+
+// removeGame disables a game-Object by setting its token to none. Object to be edited is identified by token. Returns true if successfull or false if not found.
+func removeGame(token string) bool {
+	for _, g := range games {
+		if g.Token == token {
+			g.Token = ""
+			return true
+		}
+	}
+	return false
+}
+
+func newGame(responseWriter http.ResponseWriter, request *http.Request) {
+	var game = new(JSON_Game)
+	buf := new(bytes.Buffer)
+	buf.ReadFrom(request.Body)
+
+	if json.Unmarshal(buf.Bytes(), game) == nil {
+		game.Token = randomString(32)
+		if addGame(*game) {
+			core.SendObject(&responseWriter, game)
+			addGame(*game)
+		} else {
+			sendError(&responseWriter, "game_creation")
+		}
+	} else {
+		sendError(&responseWriter, "json")
+	}
+}
+
+func joinGame(responseWriter http.ResponseWriter, request *http.Request) {
+	var game = new(JSON_Game)
+	buf := new(bytes.Buffer)
+	buf.ReadFrom(request.Body)
+
+	if json.Unmarshal(buf.Bytes(), game) == nil {
+		game, succ := getGame(game.Token)
+		if succ {
+			core.SendObject(&responseWriter, *game)
+		} else {
+			sendError(&responseWriter, "game_notfound")
+		}
+	} else {
+		sendError(&responseWriter, "json")
+	}
+}
+
+func sendError(responseWriter *http.ResponseWriter, errorMsg string) {
+	core.SendObject(responseWriter, map[string]string{"state": errorMsg + "_error"})
+}