<?php

namespace App\Services;

use App\Models\ServiceTask;
use App\Models\TaskItem;
use App\Enums\ServiceTaskStatus;
use Illuminate\Support\Facades\DB;

class ServiceTaskManager
{
    public function startTask(ServiceTask $task): void
    {
        $task->update([
            'status' => ServiceTaskStatus::InProgress,
            'started_at' => now(),
        ]);
        
        // Log activity
    }

    public function completeTaskItem(TaskItem $item, array $data = []): void
    {
        $item->update([
            'is_completed' => true,
            'completed_at' => now(),
            'completed_by' => auth()->id(),
            'data' => $data,
        ]);

        $this->checkIfTaskCanBeValidated($item->serviceTask);
    }

    protected function checkIfTaskCanBeValidated(ServiceTask $task): void
    {
        $allMandatoryCompleted = $task->taskItems()
            ->where('is_mandatory', true)
            ->where('is_completed', false)
            ->count() === 0;

        if ($allMandatoryCompleted && $task->status !== ServiceTaskStatus::WaitingValidation && $task->status !== ServiceTaskStatus::Completed) {
            $task->update(['status' => ServiceTaskStatus::WaitingValidation]);
            
            // Notify service manager
            $users = \App\Models\User::role($task->service->name)->get();
            \Illuminate\Support\Facades\Notification::send($users, new \App\Notifications\ServiceTaskReadyForValidationNotification($task));
        }
    }

    public function validateTask(ServiceTask $task): void
    {
        $task->update([
            'status' => ServiceTaskStatus::Completed,
            'completed_at' => now(),
            'validated_by' => auth()->id(),
        ]);

        // Notify RH that a service has completed their task
        $rhUsers = \App\Models\User::role('RH')->get();
        \Illuminate\Support\Facades\Notification::send($rhUsers, new \App\Notifications\ServiceTaskValidatedNotification($task));

        // Trigger check on the parent integration request
        app(IntegrationService::class)->checkCompletion($task->integrationRequest);
    }

    public function rejectTask(ServiceTask $task, string $reason): void
    {
        $task->update([
            'status' => ServiceTaskStatus::Rejected,
        ]);
        
        // Notify service users
        $users = \App\Models\User::role($task->service->name)->get();
        \Illuminate\Support\Facades\Notification::send($users, new \App\Notifications\ServiceTaskRejectedNotification($task, $reason));
    }
}