<?php

namespace App\Http\Controllers\Bo;

use App\Enums\BreederType;
use App\Http\Controllers\Controller;
use App\Http\Requests\Bo\BreederIndexRequest;
use App\Models\CafelEggBreeder;
use App\Models\CafelPoultryBreeder;
use Illuminate\Database\Query\Builder;
use Illuminate\Support\Facades\DB;

class BreederController extends Controller
{
    /**
     * Display a listing of the resource.
     *
     * @param \App\Http\Requests\Bo\BreederIndexRequest $request
     * @return \Illuminate\Http\Response
     * @throws \ErrorException If request type is unhandled.
     */
    public function index(BreederIndexRequest $request)
    {
        $showEgg     = false;
        $showPoultry = false;
        $breeders    = DB::query();

        // * Query Breeders cafel Ids
        if ($request->type) {
            switch ($request->type) {
                case BreederType::egg():
                    $showEgg = true;
                    $this->getEggBreeders($request, $breeders);
                    break;
                case BreederType::poultry():
                    $showPoultry = true;
                    $this->getPoultryBreeders($request, $breeders);
                    break;
                default:
                    throw new \ErrorException("Unhandled BreederType type '$request->type'");
            }
        } else {
            $showEgg     = true;
            $showPoultry = true;
            $this->getEggBreeders($request, $breeders);
            $breeders = $breeders->union(function ($q) use ($request) {
                $this->getPoultryBreeders($request, $q);
            });
        }//end if

        /** @var \Illuminate\Pagination\LengthAwarePaginator */
        $breeders = $breeders->orderBy('cafel_code', 'DESC')->paginate();

        if ($showEgg) {
            /** @var \Illuminate\Database\Eloquent\Builder $eggBreeders */
            $eggBreeders = CafelEggBreeder::whereIn(
                'cafel_code',
                $breeders->getCollection()->pluck('cafel_code')->all()
            );
            $eggBreeders = $eggBreeders->get();
        }
        if ($showPoultry) {
            /** @var \Illuminate\Database\Eloquent\Builder $poultryBreeders */
            $poultryBreeders = CafelPoultryBreeder::whereIn(
                'cafel_code',
                $breeders->getCollection()->pluck('cafel_code')->all()
            );
            $poultryBreeders = $poultryBreeders->get();
        }

        switch (true) {
            case $showEgg and $showPoultry:
                $breeders->setCollection($eggBreeders->merge($poultryBreeders)->sortBy('cafel_code'));
                break;
            case $showEgg:
                $breeders->setCollection($eggBreeders);
                break;
            case $showPoultry:
                $breeders->setCollection($poultryBreeders);
                break;
        }

        // * Randomize
        $breeders->setCollection($breeders->getCollection()->sortBy('cafel_code'));

        $searchFields = trans('Code Cafel, EDE, INUAV, Nom, Prénom, Ville, Code postal');

        return view('back.breeders.index', [
            'breeders' => $breeders,
            'searchFields' => $searchFields
        ]);
    }

    /**
     * View breeder
     *
     * @param \App\Models\CafelEggBreeder|\App\Models\CafelPoultryBreeder $breeder
     * @return \Illuminate\Contracts\View\View|\Illuminate\Contracts\View\Factory
     * @throws \ErrorException If $breeder model is unhandled.
     */
    public function show($breeder)
    {
        if (!($breeder instanceof CafelEggBreeder) and !($breeder instanceof CafelPoultryBreeder)) {
            throw new \ErrorException(__METHOD__ . 'Only handles egg and poultry breeder classes');
        }
        return view('back.breeders.show', compact('breeder'));
    }

    /**
     * Query poultry breeders
     *
     * @param BreederIndexRequest $request
     * @param Builder             $breeders
     * @return void
     */
    private function getPoultryBreeders(BreederIndexRequest $request, Builder &$breeders)
    {
        $breeders->select('cafel_code')->from('cafel_poultry_breeders');
        if ($request->search) {
            $this->searchQuery(
                $breeders,
                'cafel_poultry_breeders',
                $request->search,
                'cafel_code',
                'firstname',
                'lastname',
                'city',
                'postcode',
                'inuavs'
            );
        }
    }

    /**
     * Query Egg breeders
     *
     * @param BreederIndexRequest $request
     * @param Builder             $breeders
     * @return void
     */
    private function getEggBreeders(BreederIndexRequest $request, Builder &$breeders)
    {
        $breeders = $breeders->select('cafel_code')->from('cafel_egg_breeders');
        if ($request->search) {
            $this->searchQuery(
                $breeders,
                'cafel_egg_breeders',
                $request->search,
                'cafel_code',
                'ede_code',
                'firstname',
                'lastname',
                'city',
                'postcode',
                'inuavs'
            );
        }
    }
}