<?php

namespace App\Controllers;

use Psr\Http\Message\ResponseInterface as Response;
use Psr\Http\Message\ServerRequestInterface as Request;
use App\Models\Source;
use App\Models\SyncLog;

class MediaSourceController extends AdminBaseController
{
    private $source;
    private $syncLog;

    public function __construct(\PDO $pdo, \Slim\Views\Twig $view)
    {
        parent::__construct($pdo, $view);
        $this->source = new Source($pdo);
        $this->syncLog = new SyncLog($pdo);
    }

    // List all sources
    public function index(Request $request, Response $response, array $args): Response
    {
        $sources = $this->source->all();
        
        return $this->render($response, 'admin/sources.twig', [
            'sources' => $sources,
            'current_route' => 'sources'
        ]);
    }

    // Show create form
    public function create(Request $request, Response $response, array $args): Response
    {
        return $this->render($response, 'admin/sources/create.twig', [
            'current_route' => 'sources'
        ]);
    }

    // Store new source
    public function store(Request $request, Response $response, array $args): Response
    {
        $data = $request->getParsedBody();
        
        // Basic validation
        if (empty($data['name']) || empty($data['type']) || empty($data['path'])) {
            $this->flash->addMessage('error', 'Name, type, and path are required');
            return $response->withHeader('Location', '/admin/sources/create')->withStatus(302);
        }

        try {
            $sourceData = [
                'name' => $data['name'],
                'type' => $data['type'],
                'path' => $data['path'],
                'username' => $data['username'] ?? null,
                'password' => !empty($data['password']) ? password_hash($data['password'], PASSWORD_DEFAULT) : null,
                'is_active' => isset($data['is_active']) ? 1 : 0,
                'created_at' => date('Y-m-d H:i:s'),
                'updated_at' => date('Y-m-d H:i:s')
            ];

            $this->source->create($sourceData);
            $this->flash->addMessage('success', 'Source created successfully');
            return $response->withHeader('Location', '/admin/sources')->withStatus(302);
            
        } catch (\Exception $e) {
            $this->flash->addMessage('error', 'Error creating source: ' . $e->getMessage());
            return $response->withHeader('Location', '/admin/sources/create')->withStatus(302);
        }
    }

    // Show edit form
    public function edit(Request $request, Response $response, array $args): Response
    {
        $id = $args['id'];
        $source = $this->source->find($id);
        
        if (!$source) {
            $this->flash->addMessage('error', 'Source not found');
            return $response->withHeader('Location', '/admin/sources')->withStatus(302);
        }
        
        return $this->render($response, 'admin/sources/edit.twig', [
            'source' => $source,
            'current_route' => 'sources'
        ]);
    }

    // Update source
    public function update(Request $request, Response $response, array $args): Response
    {
        $id = $args['id'];
        $data = $request->getParsedBody();
        
        try {
            $sourceData = [
                'name' => $data['name'],
                'type' => $data['type'],
                'path' => $data['path'],
                'username' => $data['username'] ?? null,
                'is_active' => isset($data['is_active']) ? 1 : 0,
                'updated_at' => date('Y-m-d H:i:s')
            ];
            
            // Only update password if provided
            if (!empty($data['password'])) {
                $sourceData['password'] = password_hash($data['password'], PASSWORD_DEFAULT);
            }

            $this->source->update($id, $sourceData);
            $this->flash->addMessage('success', 'Source updated successfully');
            return $response->withHeader('Location', '/admin/sources')->withStatus(302);
            
        } catch (\Exception $e) {
            $this->flash->addMessage('error', 'Error updating source: ' . $e->getMessage());
            return $response->withHeader('Location', '/admin/sources/' . $id . '/edit')->withStatus(302);
        }
    }

    // Delete source
    public function destroy(Request $request, Response $response, array $args): Response
    {
        $id = $args['id'];
        
        try {
            $this->source->delete($id);
            $this->flash->addMessage('success', 'Source deleted successfully');
        } catch (\Exception $e) {
            $this->flash->addMessage('error', 'Error deleting source: ' . $e->getMessage());
        }
        
        return $response->withHeader('Location', '/admin/sources')->withStatus(302);
    }

    // Start sync for a source
    public function startSync(Request $request, Response $response, array $args): Response
    {
        $sourceId = $args['id'];
        $source = $this->source->find($sourceId);
        
        if (!$source) {
            return $this->json($response, [
                'success' => false,
                'message' => 'Source not found'
            ], 404);
        }
        
        try {
            // Create a sync log entry
            $logId = $this->syncLog->create([
                'source_id' => $sourceId,
                'type' => 'full',
                'status' => 'pending',
                'started_at' => date('Y-m-d H:i:s'),
                'created_at' => date('Y-m-d H:i:s')
            ]);
            
            // Start sync in background (you'll need to implement this)
            $this->startBackgroundSync($sourceId, $logId);
            
            return $this->json($response, [
                'success' => true,
                'message' => 'Sync started',
                'log_id' => $logId
            ]);
            
        } catch (\Exception $e) {
            return $this->json($response, [
                'success' => false,
                'message' => 'Error starting sync: ' . $e->getMessage()
            ], 500);
        }
    }
    
    // Get sync status
    public function syncStatus(Request $request, Response $response, array $args): Response
    {
        $logId = $args['log_id'] ?? null;
        
        if (!$logId) {
            return $this->json($response, [
                'success' => false,
                'message' => 'Log ID is required'
            ], 400);
        }
        
        $log = $this->syncLog->find($logId);
        
        if (!$log) {
            return $this->json($response, [
                'success' => false,
                'message' => 'Sync log not found'
            ], 404);
        }
        
        return $this->json($response, [
            'success' => true,
            'status' => $log['status'],
            'progress' => $log['progress'] ?? 0,
            'message' => $log['message'] ?? ''
        ]);
    }
    
    // Start background sync process
    private function startBackgroundSync($sourceId, $logId)
    {
        // This is a simplified example - you'll need to implement this based on your needs
        $command = sprintf(
            'php %s/console.php sync:source %d --log=%d > /dev/null 2>&1 &',
            dirname(__DIR__, 3),
            $sourceId,
            $logId
        );
        
        exec($command);
    }
}