<?php

namespace App\Console\Commands;

use App\User;
use App\Account;
use App\Reminder;
use App\Jobs\SendReminderEmail;
use Illuminate\Console\Command;
use App\Jobs\SetNextReminderDate;

class SendReminders extends Command
{
    /**
     * The name and signature of the console command.
     *
     * @var string
     */
    protected $signature = 'send:reminders';

    /**
     * The console command description.
     *
     * @var string
     */
    protected $description = 'Send reminders that are scheduled for the contacts';

    /**
     * Execute the console command.
     *
     * @return mixed
     */
    public function handle()
    {
        // Grab all the reminders that are supposed to be sent in the next two days
        // Why 2? because in terms of timezone, we can have up to more than 24 hours
        // between two timezones and we need to take into accounts reminders
        // that are not in the same timezone.
        $reminders = Reminder::where('next_expected_date', '<', now()->addDays(2))
                                ->orderBy('next_expected_date', 'asc')->get();

        foreach ($reminders as $reminder) {
            // Skip the reminder if the contact has been deleted (and for some
            // reasons, the reminder hasn't)
            if (! $reminder->contact) {
                $reminder->delete();
                continue;
            }
            $this->handleReminder($reminder);
        }
    }

    private function handleReminder($reminder)
    {
        $account = $reminder->contact->account;
        $numberOfUsersInAccount = $account->users->count();
        $counter = 1;

        foreach ($account->users as $user) {
            if ($user->shouldBeReminded($reminder->next_expected_date)) {
                if (! $account->hasLimitations()) {
                    dispatch(new SendReminderEmail($reminder, $user));
                }

                if ($counter == $numberOfUsersInAccount) {
                    // We should only do this when we are sure that this is
                    // the last user who should be warned in this account.
                    dispatch(new SetNextReminderDate($reminder, $user->timezone));
                }
            }
            $counter++;
        }
    }
}