<?php

/*
 * Copyright © 2020 Miguel Nogueira
 *
 *   This file is part of Raspberry Staff Manager.
 *
 *     Raspberry Staff Manager is free software: you can redistribute it and/or modify
 *     it under the terms of the GNU General Public License as published by
 *     the Free Software Foundation, either version 3 of the License, or
 *     (at your option) any later version.
 *
 *     Raspberry Staff Manager is distributed in the hope that it will be useful,
 *     but WITHOUT ANY WARRANTY; without even the implied warranty of
 *     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *     GNU General Public License for more details.
 *
 *     You should have received a copy of the GNU General Public License
 *     along with Raspberry Staff Manager.  If not, see <https://www.gnu.org/licenses/>.
 */

namespace App\Console\Commands;

use App\Application;
use App\Events\ApplicationApprovedEvent;
use App\Events\ApplicationDeniedEvent;
use Illuminate\Console\Command;

class CountVotes extends Command
{
    /**
     * The name and signature of the console command.
     *
     * @var string
     */
    protected $signature = 'votes:evaluate {--d|dryrun : Controls whether passing applicants should be promoted (e.g. only show results)}';

    /**
     * The console command description.
     *
     * @var string
     */
    protected $description = 'Iterates through eligible applications and determines if they should be approved based on the number of votes';

    /**
     * Create a new command instance.
     *
     * @return void
     */
    public function __construct()
    {
        parent::__construct();
    }

    /**
     * Execute the console command.
     *
     * @return mixed
     */
    public function handle()
    {
        $eligibleApps = Application::where('applicationStatus', 'STAGE_PEERAPPROVAL')->get();
        $pbar = $this->output->createProgressBar($eligibleApps->count());

        if ($eligibleApps->isEmpty()) {
            $this->error('𐄂 There are no applications that need to be processed.');

            return false;
        }

        foreach ($eligibleApps as $application) {
            $votes = $application->votes;
            $voteCount = $application->votes->count();

            $positiveVotes = 0;
            $negativeVotes = 0;

            if ($voteCount > 5) {
                $this->info('Counting votes for application ID '.$application->id);
                foreach ($votes as $vote) {
                    switch ($vote->allowedVoteType) {
                        case 'VOTE_APPROVE':
                            $positiveVotes++;
                            break;
                        case 'VOTE_DENY':
                            $negativeVotes++;
                            break;
                    }
                }

                $this->info('Total votes for application ID '.$application->id.': '.$voteCount);
                $this->info('Calculating criteria...');
                $negativeVotePercent = floor(($negativeVotes / $voteCount) * 100);
                $positiveVotePercent = floor(($positiveVotes / $voteCount) * 100);

                $pollResult = $positiveVotePercent > $negativeVotePercent;

                $this->table([
                    '% of approval votes',
                    '% of denial votes',
                ], [ // array of arrays, e.g. rows
                    [
                        $positiveVotePercent.'%',
                        $negativeVotePercent.'%',
                    ],
                ]);

                if ($pollResult) {
                    $this->info('✓ Dispatched promotion event for applicant '.$application->user->name);
                    if (! $this->option('dryrun')) {
                        $application->response->vacancy->vacancyCount -= 1;
                        $application->response->vacancy->save();

                        event(new ApplicationApprovedEvent(Application::find($application->id)));
                    } else {
                        $this->warn('Dry run: Event won\'t be dispatched');
                    }

                    $pbar->advance();
                } else {
                    if (! $this->option('dryrun')) {
                        event(new ApplicationDeniedEvent(Application::find($application->id)));
                    } else {
                        $this->warn('Dry run: Event won\'t be dispatched');
                    }

                    $pbar->advance();
                    $this->error('𐄂 Applicant '.$application->user->name.' does not meet vote criteria (Majority)');
                }
            } else {
                $this->warn('Application ID'.$application->id.' did not have enough votes for processing (min 5)');
            }
        }

        $pbar->finish();

        return true;
    }
}