jandl-taskmanager-app/be/app/Models/MasterTask.php

<?php

namespace App\Models;

use Illuminate\Database\Eloquent\Factories\HasFactory;
use Illuminate\Database\Eloquent\Model;

class MasterTask extends Model
{
    use HasFactory;

    public $timestamps = true;
    public $guarded = ['id'];

    public function subtasks()
    {
        return $this->hasMany(SubTask::class);
    }

    public function project()
    {
        return $this->belongsTo(Project::class);
    }

    public function attachments()
    {
        return $this->hasMany(Attachment::class);
    }

    public function team()
    {
        return $this->belongsTo(Team::class);
    }

    // vracia userov, ktori su priradeni k subtasku ale nepatria do teamu
    public function getUsersOutsideTeamAttribute()
    {
        $users = $this->subtasks->pluck('user')->unique();

        //remove null values - priprady, kedy bol user zmazany
        $users = $users->filter();
        
        // ak nie je uvedeny ziaden team, tak sa vratia vsetci useri
        if (!$this->team){
            return $users;
        }

        return $users->filter(function ($user) {
            return !in_array($this->team->id, isset($user->teams) ? $user->teams->pluck('id')->unique()->toArray() : []);
        });
    }

    public static function generateMasterTaskColor()
    {
        // return random value from array
        return collect(['#E9FFE5', '#F6ECD3', '#FDE1FF', '#FFC9C9', '#DADEF8', '#EDFFFE', '#FFDED7'])->random();
    }

    public function deleteAttachments()
    {
        foreach ( $this->attachments as $attachment ) {
            $attachment->deleteFromS3();
        }

        $this->attachments()->delete();

        return true;
    }

    public function recalculateEstimatedTime()
    {
        $this->estimated_time = $this->subtasks->sum('estimated_time');
        $this->save();
    }

    public function recalculateTrackedTime()
    {
        $trackedTime = 0.0;

        foreach ( $this->subtasks as $subtask ) {
            $trackedTime += $subtask->timesheets->sum('time');
        }

        $this->tracked_time = $trackedTime;
        $this->save();

    }
}