<?php namespace App\Http\Controllers\Auth;

use App\User;
use App\Http\Requests;
use App\Http\Controllers\Controller;
use Illuminate\Contracts\Auth\Guard;
use Illuminate\Contracts\Auth\PasswordBroker;
use Symfony\Component\HttpKernel\Exception\NotFoundHttpException;

class PasswordController extends Controller {

	/**
	 * The Guard implementation.
	 *
	 * @var Guard
	 */
	protected $auth;

	/**
	 * The password broker implementation.
	 *
	 * @var PasswordBroker
	 */
	protected $passwords;

	/**
	 * Create a new password controller instance.
	 *
	 * @param  PasswordBroker  $passwords
	 * @return void
	 */
	public function __construct(Guard $auth, PasswordBroker $passwords)
	{
		$this->auth = $auth;
		$this->passwords = $passwords;

		$this->middleware('guest');
	}

	/**
	 * Display the form to request a password reset link.
	 *
	 * @return Response
	 */
	public function getEmail()
	{
		return view('auth.password');
	}

	/**
	 * Send a reset link to the given user.
	 *
	 * @param  EmailPasswordLinkRequest  $request
	 * @return Response
	 */
	public function postEmail(Requests\Auth\EmailPasswordLinkRequest $request)
	{
		switch ($response = $this->passwords->sendResetLink($request->only('email')))
		{
			case PasswordBroker::INVALID_USER:
				return redirect()->back()->withErrors(['email' =>trans($response)]);

			case PasswordBroker::RESET_LINK_SENT:
				return redirect()->back()->with('status', trans($response));
		}
	}

	/**
	 * Display the password reset view for the given token.
	 *
	 * @param  string  $token
	 * @return Response
	 */
	public function getReset($token = null)
	{
		if (is_null($token))
		{
			throw new NotFoundHttpException;
		}

		return view('auth.reset')->with('token', $token);
	}

	/**
	 * Reset the given user's password.
	 *
	 * @param  ResetPasswordRequest  $request
	 * @return Response
	 */
	public function postReset(Requests\Auth\ResetPasswordRequest $request)
	{
		$credentials = $request->only(
			'email', 'password', 'password_confirmation', 'token'
		);

		$response = $this->passwords->reset($credentials, function($user, $password)
		{
			$user->password = bcrypt($password);

			$user->save();
		});

		switch ($response)
		{
			case PasswordBroker::INVALID_PASSWORD:
			case PasswordBroker::INVALID_TOKEN:
			case PasswordBroker::INVALID_USER:
				return redirect()->back()
							->withInput($request->only('email'))
							->withErrors(['email' => trans($response)]);

			case PasswordBroker::PASSWORD_RESET:
				return $this->loginAndRedirect($request->email);
		}
	}

	/**
	 * Login the user with the given e-mail address and redirect home.
	 *
	 * @param  string  $email
	 * @return Response
	 */
	protected function loginAndRedirect($email)
	{
		$this->auth->login(User::where('email', $email)->firstOrFail());

		return redirect('/home');
	}

}