<?php

use Engelsystem\Models\Room;
use Engelsystem\Models\User\User;

/**
 * @param array $old_shift
 * @param array $new_shift
 */
function mail_shift_change($old_shift, $new_shift)
{
    $users = ShiftEntries_by_shift($old_shift['SID']);
    $old_room = Room::find($old_shift['RID']);
    $new_room = Room::find($new_shift['RID']);

    $noticeable_changes = false;

    $message = __('A Shift you are registered on has changed:');
    $message .= "\n";

    if ($old_shift['name'] != $new_shift['name']) {
        $message .= sprintf(__('* Shift type changed from %s to %s'), $old_shift['name'], $new_shift['name']) . "\n";
        $noticeable_changes = true;
    }

    if ($old_shift['title'] != $new_shift['title']) {
        $message .= sprintf(__('* Shift title changed from %s to %s'), $old_shift['title'], $new_shift['title']) . "\n";
        $noticeable_changes = true;
    }

    if ($old_shift['start'] != $new_shift['start']) {
        $message .= sprintf(
                __('* Shift Start changed from %s to %s'),
                date('Y-m-d H:i', $old_shift['start']),
                date('Y-m-d H:i', $new_shift['start'])
            ) . "\n";
        $noticeable_changes = true;
    }

    if ($old_shift['end'] != $new_shift['end']) {
        $message .= sprintf(
                __('* Shift End changed from %s to %s'),
                date('Y-m-d H:i', $old_shift['end']),
                date('Y-m-d H:i', $new_shift['end'])
            ) . "\n";
        $noticeable_changes = true;
    }

    if ($old_shift['RID'] != $new_shift['RID']) {
        $message .= sprintf(__('* Shift Location changed from %s to %s'), $old_room->name, $new_room->name) . "\n";
        $noticeable_changes = true;
    }

    if (!$noticeable_changes) {
        // There are no changes worth sending an E-Mail
        return;
    }

    $message .= "\n";
    $message .= __('The updated Shift:') . "\n";

    $message .= $new_shift['name'] . "\n";
    $message .= $new_shift['title'] . "\n";
    $message .= date('Y-m-d H:i', $new_shift['start']) . ' - ' . date('H:i', $new_shift['end']) . "\n";
    $message .= $new_room->name . "\n\n";
    $message .= url('/shifts', ['action' => 'view', 'shift_id' => $new_shift['SID']]) . "\n";

    foreach ($users as $user) {
        $user = (new User())->forceFill($user);
        if ($user->settings->email_shiftinfo) {
            engelsystem_email_to_user(
                $user,
                __('Your Shift has changed'),
                $message,
                true
            );
        }
    }
}

/**
 * @param array $shift
 */
function mail_shift_delete($shift)
{
    $users = ShiftEntries_by_shift($shift['SID']);
    $room = Room::find($shift['RID']);

    $message = __('A Shift you are registered on was deleted:') . "\n";

    $message .= $shift['name'] . "\n";
    $message .= $shift['title'] . "\n";
    $message .= date('Y-m-d H:i', $shift['start']) . ' - ' . date('H:i', $shift['end']) . "\n";
    $message .= $room->name . "\n";

    foreach ($users as $user) {
        $user = (new User())->forceFill($user);
        if ($user->settings->email_shiftinfo) {
            $userMessage = $message;
            if ($shift['start'] < time() && !$user['freeloaded']) {
                $userMessage .= "\n" . __('Since the deleted shift was already done, we added a worklog entry instead, to keep your work hours correct.') . "\n";
            }

            engelsystem_email_to_user($user, __('Your Shift was deleted'), $userMessage, true);
        }
    }
}

/**
 * @param User  $user
 * @param array $shift
 */
function mail_shift_assign($user, $shift)
{
    if (!$user->settings->email_shiftinfo) {
        return;
    }

    $room = Room::find($shift['RID']);

    $message = __('You have been assigned to a Shift:') . "\n";
    $message .= $shift['name'] . "\n";
    $message .= $shift['title'] . "\n";
    $message .= date('Y-m-d H:i', $shift['start']) . ' - ' . date('H:i', $shift['end']) . "\n";
    $message .= $room->name . "\n\n";
    $message .= url('/shifts', ['action' => 'view', 'shift_id' => $shift['SID']]) . "\n";

    engelsystem_email_to_user($user, __('Assigned to Shift'), $message, true);
}

/**
 * @param User  $user
 * @param array $shift
 */
function mail_shift_removed($user, $shift)
{
    if (!$user->settings->email_shiftinfo) {
        return;
    }

    $room = Room::find($shift['RID']);

    $message = __('You have been removed from a Shift:') . "\n";
    $message .= $shift['name'] . "\n";
    $message .= $shift['title'] . "\n";
    $message .= date('Y-m-d H:i', $shift['start']) . ' - ' . date('H:i', $shift['end']) . "\n";
    $message .= $room->name . "\n";

    engelsystem_email_to_user($user, __('Removed from Shift'), $message, true);
}