<?php

namespace App\Services\Intranet;

use App\Models\User;
use Carbon\Carbon;

class Vacation extends Api {

    public $intranet_id;
    public $user_id;
    public $start_date;
    public $end_date;
    public $type;
    public $name;
    public $approved;

    public function __construct($intranet_id, $ldap_username, $start_date, $end_date, $type, $halfday, $approved) {
        $startend = $this->getStartEndDate($start_date, $end_date, $halfday, $ldap_username);

        $this->intranet_id = $intranet_id;
        $this->user_id = $this->getUserId($ldap_username);
        $this->start_date = (isset($startend['start'])) ? $startend['start'] : null;
        $this->end_date = (isset($startend['end'])) ? $startend['end'] : null;
        $this->type = $type;
        $this->name = $this->getVacationName($type);
        $this->approved = $approved;
    }

    public static function fromDate($date) {
        $vacations = self::getVacations($date);

        return collect(array_map(function($vacation) {
            return new Vacation( $vacation['id'], $vacation['user']['ldap_username'], $vacation['start_date'], $vacation['end_date'], $vacation['vacation_type']['name'], $vacation['halfday_position'], $vacation['approved']);
        }, $vacations))->reject(function($vacation) {
            return $vacation->user_id === null;
        });
    }

    public function toArray() {
        return [
            'intranet_id' => $this->intranet_id,
            'user_id' => $this->user_id,
            'start' => date('Y-m-d H:i:s', strtotime($this->start_date)),
            'end' => date('Y-m-d H:i:s', strtotime($this->end_date)),
            'type' => $this->type,
            'name' => $this->name,
            'approved' => $this->approved,
        ];
    }

    private function getVacationName($vacation_type) {
        switch ($vacation_type) {
            case 'home_office':
                return 'Home Office';
            case 'vacation':
                return 'Vacation';
            case 'free_day':
                return 'Free day';
            default:
                return 'Other';
        }
    }

    private function getUserId($ldap_username) {
        $user = User::where('ldap_username', $ldap_username)->first();

        return ($user) ? $user->id : null;
    }

    // vyratanie zaciatku a konca dovolenky na zaklade toho, ci sa jedna o cely den alebo polden a na zaklade toho, co ma user zadane v pracovnej dobe
    private function getStartEndDate($start_date, $end_date, $halfday, $ldap_username) {
        $user = User::where('ldap_username', $ldap_username)->first();

        if (!$user) return null;

        $workStart = $user->work_start;
        $workEnd = $user->work_end;

        // convert hour integer number to time hours
        $workStart = sprintf('%02d:%02d', (int) $workStart, fmod($workStart, 1) * 60);
        $workEnd = sprintf('%02d:%02d', (int) $workEnd, fmod($workEnd, 1) * 60);

        if ($halfday == 'start') {
            $start = $start_date . ' ' . $workStart;
            $end = date('Y-m-d H:i:s', strtotime($start . ' + 4 hours'));

            return ['start' => $start, 'end' => $end];
        } else if ($halfday == 'end') {
            $end = $end_date . ' ' . $workEnd;
            $start = date('Y-m-d H:i:s', strtotime($end . ' - 4 hours'));

            return ['start' => $start, 'end' => $end];
        } else if ($halfday == null) {
            $start = date('Y-m-d H:i:s', strtotime($start_date . ' ' . $workStart));
            $end = date('Y-m-d H:i:s', strtotime($end_date . ' ' . $workEnd));

            return ['start' => $start, 'end' => $end];
        }
    }
}