<?php

namespace Modules\ProjectManagement\Models;

use App\Models\User;
use App\Traits\HasPublicIdentifier;
use Illuminate\Database\Eloquent\Model;
use Illuminate\Database\Eloquent\Relations\BelongsTo;
use Modules\ProjectManagement\Enums\DelayReason;
use Modules\ProjectManagement\Enums\WeatherCondition;

class TaskDelay extends Model
{
    use HasPublicIdentifier;

    protected $fillable = [
        'task_id',
        'reason_type',
        'weather_condition',
        'delay_date',
        'lost_hours',
        'notes',
        'reported_by',
    ];

    protected function casts(): array
    {
        return [
            'reason_type' => DelayReason::class,
            'weather_condition' => WeatherCondition::class,
            'delay_date' => 'date',
            'lost_hours' => 'decimal:2',
        ];
    }

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

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

    protected static function booted(): void
    {
        static::created(function (TaskDelay $td) {
            if (auth()->check() && $td->task) {
                $reason = $td->reason_type instanceof DelayReason ? $td->reason_type->label() : $td->reason_type;
                $dateStr = $td->delay_date ? $td->delay_date->format('Y-m-d') : 'unknown date';
                $td->task->activities()->create([
                    'user_id' => auth()->id(),
                    'description' => "logged delay: '{$reason}' on {$dateStr} ({$td->lost_hours}h lost).",
                    'type' => 'delay_add',
                ]);
            }
        });

        static::updated(function (TaskDelay $td) {
            if (auth()->check() && $td->task) {
                $dirty = $td->getDirty();
                $changes = [];
                if (array_key_exists('lost_hours', $dirty)) {
                    $changes[] = "changed delay hours to {$td->lost_hours}h";
                }
                if (array_key_exists('reason_type', $dirty)) {
                    $reason = $td->reason_type instanceof DelayReason ? $td->reason_type->label() : $td->reason_type;
                    $changes[] = "changed delay reason to '{$reason}'";
                }
                if (!empty($changes)) {
                    $td->task->activities()->create([
                        'user_id' => auth()->id(),
                        'description' => "updated delay: " . implode(', ', $changes) . '.',
                        'type' => 'delay_update',
                    ]);
                }
            }
        });

        static::deleted(function (TaskDelay $td) {
            if (auth()->check() && $td->task) {
                $reason = $td->reason_type instanceof DelayReason ? $td->reason_type->label() : $td->reason_type;
                $dateStr = $td->delay_date ? $td->delay_date->format('Y-m-d') : 'unknown date';
                $td->task->activities()->create([
                    'user_id' => auth()->id(),
                    'description' => "removed delay: '{$reason}' on {$dateStr}.",
                    'type' => 'delay_remove',
                ]);
            }
        });
    }

    // --- Accessors ---

    public function getIsWeatherRelatedAttribute(): bool
    {
        return $this->reason_type === DelayReason::Weather;
    }

    public function getLostDaysAttribute(): float
    {
        return round((float) $this->lost_hours / 8, 1);
    }
}