<?php

namespace App\Console\Commands;

use App\Services\MicrosoftGraph\MsgraphModelChangeService;
use Illuminate\Console\Command;
use Illuminate\Support\Facades\Log;

class ProcessModelChanges extends Command
{
    protected $signature = 'msgraph:process-model-changes {--limit=10 : Maximum number of changes to process}';
    protected $description = 'Process pending Microsoft Graph model changes (committee/workgroup created/updated/deleted)';

    protected $modelChangeService;

    public function __construct(MsgraphModelChangeService $modelChangeService)
    {
        parent::__construct();
        $this->modelChangeService = $modelChangeService;
    }

    public function handle()
    {
        $limit = (int) $this->option('limit');

        $this->info('🔄 Processing Microsoft Graph model changes...');

        // Get pending changes
        $pendingChanges = $this->modelChangeService->getAllPendingModelChanges()
            ->take($limit);

        if ($pendingChanges->isEmpty()) {
            $this->info('✅ No pending model changes found.');
            return;
        }

        $this->info("📋 Found {$pendingChanges->count()} pending model changes to process:");

        $processed = 0;
        $errors = 0;

        foreach ($pendingChanges as $change) {
            try {
                $modelType = class_basename($change->model_type);
                $modelTitle = $change->model_title;

                $this->info("🔄 Processing {$change->action} for {$modelType}: {$modelTitle}");

                // Here you would implement the actual Microsoft Graph API calls
                // For now, we'll just simulate the processing
                $this->processModelChange($change);

                // Mark as processed
                $change->update([
                    'processed' => true,
                    'processed_at' => now()
                ]);

                $processed++;
                $this->info("   ✅ Processed successfully");

            } catch (\Exception $e) {
                $errors++;
                $this->error("   ❌ Error processing change: " . $e->getMessage());

                // Log the error but continue processing other changes
                Log::error('Error processing model change', [
                    'change_id' => $change->id,
                    'error' => $e->getMessage(),
                    'change_data' => $change->toArray()
                ]);
            }
        }

        $this->info("\n📊 Processing Summary:");
        $this->info("   ✅ Successfully processed: {$processed}");
        if ($errors > 0) {
            $this->error("   ❌ Errors encountered: {$errors}");
        }

        $this->info('🎉 Model change processing completed!');
    }

    private function processModelChange($change)
    {
        // This is where you would implement the actual Microsoft Graph API calls
        // For now, we'll just simulate the processing based on the action type

        switch ($change->action) {
            case 'model_created':
                $this->info("   📝 Would create {$change->model_type} in Microsoft Graph");
                break;

            case 'model_deleted':
                $this->info("   🗑️ Would delete {$change->model_type} from Microsoft Graph");
                break;

            case 'status_changed':
                $this->info("   🔄 Would update status from '{$change->old_status}' to '{$change->new_status}'");
                break;

            case 'title_changed':
                $this->info("   ✏️ Would update title from '{$change->old_title}' to '{$change->new_title}' ({$change->language})");
                break;

            default:
                $this->info("   ❓ Unknown action: {$change->action}");
                break;
        }

        // Simulate processing time
        usleep(100000); // 0.1 seconds
    }
}