<?php

namespace App\Models;

use Illuminate\Database\Eloquent\Model;
use Illuminate\Database\Eloquent\Builder;
use Illuminate\Database\Eloquent\Relations\BelongsTo;
use Illuminate\Database\Eloquent\Relations\HasMany;
use Illuminate\Database\Eloquent\Relations\MorphMany;

class Task extends Model
{
    protected $fillable = [
        'title', 'description', 'project_id', 'assignee_id', 'reporter_id',
        'priority', 'status', 'blocker_type', 'blocker_note', 'start_date', 'due_date', 'estimated_time',
        'actual_time', 'tags', 'sort_order', 'created_by',
    ];

    protected $casts = [
        'tags' => 'array',
        'start_date' => 'date',
        'due_date' => 'date',
        'estimated_time' => 'decimal:2',
        'actual_time' => 'decimal:2',
    ];

    public function scopeBlocked(Builder $query): Builder
    {
        return $query->where(function (Builder $blocked) {
            $blocked->whereNotNull('blocker_type')
                ->orWhereNotNull('blocker_note');
        });
    }

    public function getIsBlockedAttribute(): bool
    {
        return filled($this->blocker_type) || filled($this->blocker_note);
    }

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

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

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

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

    public function checklists(): HasMany
    {
        return $this->hasMany(Checklist::class);
    }

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

    public function comments(): MorphMany
    {
        return $this->morphMany(Comment::class, 'commentable');
    }

    public function files(): MorphMany
    {
        return $this->morphMany(File::class, 'fileable');
    }

    public function sprints()
    {
        return $this->belongsToMany(Sprint::class, 'sprint_task')->withTimestamps();
    }
}