<?php

namespace App\Models\Admin;

use App\Models\User;
use Illuminate\Database\Eloquent\Model;
use Illuminate\Database\Eloquent\Relations\BelongsTo;
use Illuminate\Database\Eloquent\SoftDeletes;

class AdminRoadmapMilestone extends Model
{
    use SoftDeletes;

    protected $table = 'admin_roadmap_milestones';

    protected $fillable = [
        'plan_id',
        'title',
        'description',
        'status',
        'due_date',
        'completed_at',
        'assignee_id',
        'sort_order',
        'created_by',
        'updated_by',
        'deleted_by',
    ];

    protected $casts = [
        'plan_id' => 'integer',
        'due_date' => 'date',
        'completed_at' => 'datetime',
        'assignee_id' => 'integer',
        'sort_order' => 'integer',
        'created_by' => 'integer',
        'updated_by' => 'integer',
        'deleted_by' => 'integer',
    ];

    public const STATUS_PENDING = 'pending';

    public const STATUS_COMPLETED = 'completed';

    public static function getStatuses(): array
    {
        return [
            self::STATUS_PENDING => '진행중',
            self::STATUS_COMPLETED => '완료',
        ];
    }

    public function plan(): BelongsTo
    {
        return $this->belongsTo(AdminRoadmapPlan::class, 'plan_id');
    }

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

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

    public function getStatusLabelAttribute(): string
    {
        return self::getStatuses()[$this->status] ?? $this->status;
    }

    public function getIsCompletedAttribute(): bool
    {
        return $this->status === self::STATUS_COMPLETED;
    }

    public function getDdayAttribute(): ?int
    {
        if (! $this->due_date) {
            return null;
        }

        return now()->startOfDay()->diffInDays($this->due_date, false);
    }

    public function getDueStatusAttribute(): ?string
    {
        if (! $this->due_date || $this->status === self::STATUS_COMPLETED) {
            return null;
        }
        $dday = $this->dday;
        if ($dday < 0) {
            return 'overdue';
        }
        if ($dday <= 7) {
            return 'due_soon';
        }

        return 'normal';
    }
}