<?php

namespace App\Models;

use Illuminate\Database\Eloquent\Model;
use Illuminate\Database\Eloquent\Relations\BelongsTo;
use Illuminate\Database\Eloquent\Relations\BelongsToMany;
use Illuminate\Database\Eloquent\Relations\HasMany;

class Department extends Model
{
    protected $fillable = ['name', 'description', 'type', 'parent_id', 'manager_id', 'manager_changed_at', 'is_active', 'sort_order'];

    protected $casts = [
        'is_active' => 'boolean',
        'manager_changed_at' => 'datetime',
    ];

    public function parent(): BelongsTo
    {
        return $this->belongsTo(Department::class, 'parent_id');
    }

    public function children(): HasMany
    {
        return $this->hasMany(Department::class, 'parent_id')->orderBy('sort_order');
    }

    public function manager(): BelongsTo
    {
        return $this->belongsTo(User::class, 'manager_id');
    }

    public function users(): HasMany
    {
        return $this->hasMany(User::class, 'department_id');
    }

    public function members(): BelongsToMany
    {
        return $this->belongsToMany(User::class, 'department_user')
            ->withPivot(['role_in_team', 'is_primary', 'joined_at'])
            ->withTimestamps();
    }
}