<?php

namespace App\Http\Controllers\NominationEnsembles;

use App\Http\Controllers\Controller;
use App\Models\NominationEnsemble;
use App\Models\NominationEnsembleEntry;

class MeobdaNominationSeatingController extends Controller implements NominationSeatingController
{
    public function index()
    {
        $ensembles = NominationEnsemble::all();
        $ensemble = null;

        return view('nomination_ensembles.meobda.admin.seating', compact('ensembles', 'ensemble'));
    }

    public function show(NominationEnsemble $ensemble)
    {
        $ensembles = NominationEnsemble::all();
        $nominations = [];

        if ($ensemble->data['seated'] ?? false) {
            $nominations = NominationEnsembleEntry::where('nomination_ensemble_id', $ensemble->id)
                ->orderBy('data->instrument')
                ->orderByRaw('CAST(data->"$.seat" AS UNSIGNED)')
                ->with('student.school')
                ->get();
            $nominations = $nominations->groupBy(function ($item) {
                return $item->data['split'];
            });
            foreach ($nominations as $split => $splitNoms) {
                $nominations[$split] = $splitNoms->groupBy(function ($item) {
                    return $item->data['instrument'];
                });
            }
        }

        return view('nomination_ensembles.meobda.admin.seating', compact('ensembles', 'ensemble', 'nominations'));
    }

    public function seat(NominationEnsemble $ensemble)
    {
        $validData = request()->validate([
            'action' => 'required|in:seat,clear',
        ]);
        $action = $validData['action'];
        $data = $ensemble['data'];
        $nominations = NominationEnsembleEntry::where('nomination_ensemble_id',
            $ensemble->id)->inRandomOrder()->get();
        $groupedNominations = $nominations->groupBy(function ($nom) {
            return $nom->data['instrument'];
        });

        if ($action == 'seat') {
            // If no split names are set, make the name of the ensemble the only split name
            $splits = $data['split_names'];
            if (count($splits) < 2 && strlen($splits[0]) < 2) {
                $splits[0] = $ensemble->name;
            }
            $splitOn = 0;

            foreach ($ensemble->data['instruments'] as $instrument) {
                if (! $groupedNominations->has($instrument['name'])) {
                    continue;
                }
                $seatOn = 1;
                foreach ($groupedNominations[$instrument['name']] as $nomination) {
                    $nomData = $nomination['data'];
                    $nomData['seat'] = $seatOn;
                    $nomData['split'] = $splits[$splitOn];
                    $nomination->data = $nomData;
                    $nomination->save();

                    $splitOn++;
                    if ($splitOn >= count($splits)) {
                        $seatOn++;
                        $splitOn = 0;
                    }
                }
            }

            $data['seated'] = true;

        }

        if ($action == 'clear') {
            $data['seated'] = false;
            foreach ($nominations as $nomination) {
                $nomData = $nomination['data'];
                unset($nomData['split']);
                unset($nomData['seat']);
                $nomination->data = $nomData;
                $nomination->save();
            }
        }
        $ensemble->data = $data;
        $ensemble->save();

        return redirect(route('nomination.admin.seating.show', [$ensemble]));
    }
}