main.go

package main

import (
	"encoding/json"
	"fmt"
	"log"
	"net/http"
)

/******************** DATA STRUCTS ***********************/

// Player represents a player
type Player struct {
	ID   int
	Name string
}

// Game represents a game object in the database
type Game struct {
	ID       int
	Player1  Player
	Player2  Player
	Channels [2]chan string
}

// Move represents a move in the game
type Move struct {
	GameID   int    `json:"game_id"`
	Player   int    `json:"player"`
	MoveData string `json:"move"`
	GameOver bool   `json:"game_over"`
}

var (
	gameData map[int]Game
)

/************** MAIN FUNCTION **********************/

func main() {
	gameData = make(map[int]Game)

	http.HandleFunc("/", hello)

	http.HandleFunc("/move", move)
	http.HandleFunc("/create", createGame)
	http.HandleFunc("/join", joinGame)

	err := http.ListenAndServe(":8080", nil)
	if err != nil {
		log.Println("could not start server")
	}
}

/************************ HANDLERS ************************/

func hello(w http.ResponseWriter, r *http.Request) {
	fmt.Fprintf(w, "Big Tac Toe")
}

func move(w http.ResponseWriter, r *http.Request) {
	jsonData := readJsonFromRequest(r)

	var move Move
	err := json.Unmarshal(jsonData, &move)
	if err != nil {
		log.Println("could not decode json data into Move struct")
	}

	game := gameData[move.GameID]
	sendChan := game.Channels[move.Player]
	recChan := game.Channels[1-move.Player]
	sendChan <- move.MoveData

	if move.GameOver {
		fmt.Fprintf(w, "Game over!")
		return
	}

	response := <-recChan
	fmt.Fprintf(w, response)
}

func createGame(w http.ResponseWriter, r *http.Request) {
	fmt.Fprintf(w, "hello")
}

func joinGame(w http.ResponseWriter, r *http.Request) {
	fmt.Fprintf(w, "hello")
}