<?php

namespace App\Models;

use Illuminate\Database\Eloquent\Factories\HasFactory;
use Illuminate\Database\Eloquent\Model;
use Illuminate\Database\Eloquent\Relations\BelongsTo;
use Illuminate\Database\Eloquent\Relations\HasMany;
use Illuminate\Database\Eloquent\SoftDeletes;

class Task extends Model
{
    use HasFactory, SoftDeletes;

    public const STATUSES = ['todo', 'in_progress', 'done', 'blocked', 'waiting_review'];

    protected $fillable = [
        'title',
        'description',
        'status',
        'project_id',
        'priority',
        'due_at',
        'started_at',
        'completed_at',
        'estimated_hours',
        'actual_hours',
    ];

    protected $casts = [
        'due_at' => 'datetime',
        'started_at' => 'datetime',
        'completed_at' => 'datetime',
    ];

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

    public function comments(): HasMany
    {
        return $this->hasMany(TaskComment::class)->orderBy('created_at');
    }

    public function scopeByStatus($query, string $status)
    {
        return $query->where('status', $status);
    }

    public function scopeTodo($query)
    {
        return $query->where('status', 'todo');
    }

    public function scopeInProgress($query)
    {
        return $query->where('status', 'in_progress');
    }

    public function scopeDone($query)
    {
        return $query->where('status', 'done');
    }

    public function scopeBlocked($query)
    {
        return $query->where('status', 'blocked');
    }

    public function scopeWaitingReview($query)
    {
        return $query->where('status', 'waiting_review');
    }

    public function scopeDueSoon($query, int $days = 3)
    {
        return $query->where('due_at', '>=', now())
            ->where('due_at', '<=', now()->addDays($days))
            ->where('status', '!=', 'done');
    }

    public function scopeOverdue($query)
    {
        return $query->where('due_at', '<', now())
            ->where('status', '!=', 'done');
    }
}