<?php

namespace App\Http\Controllers\Api;

use App\Contracts\Controller;
use App\Exceptions\UserNotFound;
use App\Http\Resources\Bid as BidResource;
use App\Http\Resources\Pirep as PirepResource;
use App\Http\Resources\Subfleet as SubfleetResource;
use App\Http\Resources\User as UserResource;
use App\Models\Bid;
use App\Models\Enums\PirepState;
use App\Repositories\Criteria\WhereCriteria;
use App\Repositories\FlightRepository;
use App\Repositories\PirepRepository;
use App\Repositories\UserRepository;
use App\Services\BidService;
use App\Services\FlightService;
use App\Services\UserService;
use Illuminate\Http\Request;
use Illuminate\Support\Facades\Auth;
use Prettus\Repository\Criteria\RequestCriteria;
use Prettus\Repository\Exceptions\RepositoryException;

class UserController extends Controller
{
    private $bidSvc;
    private $flightRepo;
    private $flightSvc;
    private $pirepRepo;
    private $userRepo;
    private $userSvc;

    /**
     * @param BidService       $bidSvc
     * @param FlightRepository $flightRepo
     * @param FlightService    $flightSvc
     * @param PirepRepository  $pirepRepo
     * @param UserRepository   $userRepo
     * @param UserService      $userSvc
     */
    public function __construct(
        BidService $bidSvc,
        FlightRepository $flightRepo,
        FlightService $flightSvc,
        PirepRepository $pirepRepo,
        UserRepository $userRepo,
        UserService $userSvc
    ) {
        $this->bidSvc = $bidSvc;
        $this->flightRepo = $flightRepo;
        $this->flightSvc = $flightSvc;
        $this->pirepRepo = $pirepRepo;
        $this->userRepo = $userRepo;
        $this->userSvc = $userSvc;
    }

    /**
     * @param Request $request
     *
     * @return int|mixed
     */
    protected function getUserId(Request $request)
    {
        $id = $request->get('id');
        if ($id === null || $id === 'me') {
            return Auth::user()->id;
        }

        return $request->get('id');
    }

    /**
     * Return the profile for the currently auth'd user
     *
     * @param Request $request
     *
     * @return UserResource
     */
    public function index(Request $request)
    {
        return $this->get(Auth::user()->id);
    }

    /**
     * Get the profile for the passed-in user
     *
     * @param $id
     *
     * @return UserResource
     */
    public function get($id)
    {
        $user = $this->userSvc->getUser($id);
        if ($user === null) {
            throw new UserNotFound();
        }

        return new UserResource($user);
    }

    /**
     * Return all of the bids for the passed-in user
     *
     * @param Request $request
     *
     * @throws \Illuminate\Database\Eloquent\ModelNotFoundException
     * @throws \App\Exceptions\BidExistsForFlight
     *
     * @return mixed
     */
    public function bids(Request $request)
    {
        $user_id = $this->getUserId($request);
        $user = $this->userSvc->getUser($user_id);
        if ($user === null) {
            throw new UserNotFound();
        }

        // Add a bid
        if ($request->isMethod('PUT') || $request->isMethod('POST')) {
            $flight_id = $request->input('flight_id');
            $flight = $this->flightRepo->find($flight_id);
            $bid = $this->bidSvc->addBid($flight, $user);

            return new BidResource($bid);
        }

        if ($request->isMethod('DELETE')) {
            if ($request->filled('bid_id')) {
                $bid = Bid::findOrFail($request->input('bid_id'));
                $flight_id = $bid->flight_id;
            } else {
                $flight_id = $request->input('flight_id');
            }

            $flight = $this->flightRepo->find($flight_id);
            $this->bidSvc->removeBid($flight, $user);
        }

        // Return the flights they currently have bids on
        $bids = $this->bidSvc->findBidsForUser($user);

        return BidResource::collection($bids);
    }

    /**
     * Return the fleet that this user is allowed to
     *
     * @param Request $request
     *
     * @return \Illuminate\Http\Resources\Json\AnonymousResourceCollection
     */
    public function fleet(Request $request)
    {
        $user = $this->userRepo->find($this->getUserId($request));
        if ($user === null) {
            throw new UserNotFound();
        }

        $subfleets = $this->userSvc->getAllowableSubfleets($user);

        return SubfleetResource::collection($subfleets);
    }

    /**
     * @param Request $request
     *
     * @throws RepositoryException
     *
     * @return \Illuminate\Http\Resources\Json\AnonymousResourceCollection
     */
    public function pireps(Request $request)
    {
        $this->pirepRepo->pushCriteria(new RequestCriteria($request));

        $where = [
            'user_id' => $this->getUserId($request),
        ];

        if (filled($request->query('state'))) {
            $where['state'] = $request->query('state');
        } else {
            $where[] = ['state', '!=', PirepState::CANCELLED];
        }

        $this->pirepRepo->pushCriteria(new WhereCriteria($request, $where));

        $pireps = $this->pirepRepo
            ->orderBy('created_at', 'desc')
            ->paginate();

        return PirepResource::collection($pireps);
    }
}
