<?php

namespace App\Http\Controllers;

use Illuminate\Http\Request;
use App\Http\Resources\Game as GameResource;
use App\Game;

class GameControllerAPI extends Controller
{
    public function index()
    {
        return GameResource::collection(Game::all());
    }

    public function lobby()
    {
        return GameResource::collection(Game::where('status', 'pending')->get());
    }

    public function gamesStatus($status)
    {
        return GameResource::collection(Game::where('status', $status)->get());
    }

    public function getGame($id)
    {
        return new GameResource(Game::find($id));
    }

    public function store(Request $request)
    {
        $request->validate([
                'player1' => 'required',
            ]);
        $game = new Game();
        $game->fill($request->all());
        // No matter what status and winner was defined on the client.
        // When creating a game it will always assume "pending" status
        // and winner will be null
        $game->status = 'pending';
        $game->winner = null;
        $game->save();
        return response()->json(new GameResource($game), 201);
    }

    public function joinAndStart(Request $request, $id)
    {
        $player2 = $request->all()["player2"];
        $game = Game::findOrFail($id);
        if (!(is_null($game->player2) || ($game->player2 == ""))) {
            return response()->json(array('code'=> 409, 'message' => 'Cannot join a game that already has a second player'), 409);
        }
        if (is_null($game->status) || ($game->status != "pending")) {
            return response()->json(array('code'=> 409, 'message' => 'Cannot join a game whose status is not "pending"'), 409);
        }
        $game->player2 = $player2;
        $game->status = 'active';
        $game->save();
        return new GameResource($game);
    }

    public function endgame($id, $winner)
    {
        $game = Game::findOrFail($id);
        if (is_null($game->player1) || ($game->player1 == "")) {
            return response()->json(array('code'=> 409, 'message' => 'Cannot end a game that has no first player'), 409);
        }
        if (is_null($game->player2) || ($game->player2 == "")) {
            return response()->json(array('code'=> 409, 'message' => 'Cannot end a game that has no second player'), 409);
        }
        if (is_null($game->status) || ($game->status != "active")) {
            return response()->json(array('code'=> 409, 'message' => 'Cannot end a game whose status is not "active"'), 409);
        }
        if (($winner != 0) && ($winner != 1) && ($winner != 2)) {
            return response()->json(array('code'=> 409, 'message' => 'To end a game winner must be 0 (tie), 1 (player1) or 2 (player2)'), 409);
        }
        $game->winner = $winner;
        $game->status = 'complete';
        $game->save();
        return new GameResource($game);
    }
}