<?php
namespace JVBase\rest\routes;

use JVBase\JVB;
use JVBase\rest\RestRouteManager;
use JVBase\meta\MetaManager;
use JVBase\managers\UploadManager;
use WP_REST_Request;
use WP_REST_Response;
use WP_Error;
use Exception;

if (!defined('ABSPATH')) {
    exit; // Exit if accessed directly
}
class UploadRoutes extends RestRouteManager
{

    public function __construct()
    {
		$this->action = 'dash-';
        parent::__construct();
        add_filter(BASE.'handle_bulk_operation', [$this, 'processOperation'], 10, 3);
    }

    /**
     * Registers upload routes
     * @return void
     */
    public function registerRoutes():void
    {
        register_rest_route($this->namespace, '/uploads', [
            'methods' => 'POST',
            'callback' => [$this, 'handleUploadRequest'],
            'permission_callback' => [$this, 'checkPermission'],
            'args' => [
                'content' => [
                    'required' => true,
                    'type' => 'string'
                ],
                'user'   => [
                    'required'  => true,
                    'type'  => 'int'
                ],
                'post_id'   => [
                    'required'  => false,
                    'type'  => 'int'
                ],
                'term_id'   => [
                    'required'  => false,
                    'type'  => 'int'
                ],
                'field_name' => [
                    'required'  => false,
                    'type'  => 'string'
                ],
                'id' => [
                    'required'  => false,
                    'type'  => 'string'
                ],
                'mode' => [
                    'required'  => false,
                    'type'  => 'string',
                    'default' => 'direct'
                ]
            ]
        ]);

		register_rest_route($this->namespace, '/uploads/groups', [
			'methods' => 'POST',
			'callback' => [$this, 'handleGroupingRequest'],
			'permission_callback' => [$this, 'checkPermission'],
			'args' => [
				'id' => [
					'required' => true,
					'type' => 'string',
					'description' => 'Original upload operation ID'
				],
				'content' => [
					'required' => true,
					'type' => 'string'
				],
				'user' => [
					'required' => true,
					'type' => 'integer'
				],
			]
		]);

		register_rest_route($this->namespace, '/uploads/meta', [
			'methods' => 'POST',
			'callback' => [$this, 'handleMetadataUpdate'],
			'permission_callback' => [$this, 'checkPermission'],
			'args' => [
				'id' => [
					'type' => 'string',
					'required' => false,
					'description' => 'Original upload operation ID (for updates during processing)'
				],
				'attachment_ids' => [
					'type' => 'array',
					'required' => false,
					'description' => 'Direct attachment IDs (for updates after completion)',
					'items' => ['type' => 'integer']
				],
				'upload_ids' => [
					'type' => 'array',
					'required' => false,
					'description' => 'Frontend upload IDs to map to attachments',
					'items' => ['type' => 'string']
				],
				'metadata' => [
					'type' => 'object',
					'required' => true,
					'description' => 'Metadata changes to apply'
				],
				'user' => [
					'type' => 'integer',
					'required' => true
				]
			]
		]);
    }

    protected function buildUploadArgs(WP_REST_Request $request):array
    {
        $data = $request->get_params();
		error_log('Upload Args: '.print_r($data, true));
        $args = [
			'content'        => (array_key_exists('content', $data) && (array_key_exists(jvbGetValidType($data['content']), JVB_CONTENT) || $data['content'] === 'options')) ? jvbGetValidType($data['content']) : false,
            'user'            => (array_key_exists('user', $data) && $this->userCheck($data['user'])) ? (int)$data['user'] : false,
            'id'    => (array_key_exists('id', $data) && is_string($data['id'])) ? sanitize_text_field(str_replace('_upload', '', $data['id'])) : false,
            'post_id'        => (array_key_exists('post_id', $data) && is_numeric($data['post_id'])) ? absint($data['post_id']) : false,
            'term_id'        => (array_key_exists('term_id', $data) && is_numeric($data['term_id'])) ? absint($data['term_id']) : false,
            'field_name'    => (array_key_exists('field_name', $data) && is_string($data['field_name'])) ? sanitize_text_field($data['field_name']) : false,
            'mode'            => (array_key_exists('mode', $data) && in_array($data['mode'], ['direct', 'selection'])) ? sanitize_text_field($data['mode']) : false,
        ];

        if ((!$args['post_id'] && !$args['term_id']) && contentIsJVBUserType($args['content'])) {
            $args['post_id'] = (int)get_user_meta($args['user'], BASE.'link', true);
        }

        $args['upload'] = ($args['id']) ? $args['id'].'_upload' : false;
        return $args;
    }

    /**
     * Handle upload request with immediate feedback
     */
    /**
     * @param WP_REST_Request $request
     *
     * @return WP_REST_Response
     */
	public function handleUploadRequest(WP_REST_Request $request): WP_REST_Response
	{
		try {
			if (!isset($_FILES['files'])) {
				return $this->createStandardResponse(
					false,
					[],
					__('No files uploaded.', 'jvb')
				);
			}


			$args = $this->buildUploadArgs($request);
			error_log('Validating upload args: '.print_r($args, true));
			// Validation...
			$validation_errors = [];
			if (!$args['content'] && !$args['term_id'] && !$args['post_id']) $validation_errors[] = 'content or term or post id required';
			if (!$args['user']) $validation_errors[] = 'user';
			if (!$args['id']) $validation_errors[] = 'operation_id';
			if (!empty($validation_errors)) {
				error_log('Validation Errors: '.print_r($validation_errors, true));
				return $this->createStandardResponse(
					false,
					['missing_fields' => $validation_errors],
					'Required fields missing: ' . implode(', ', $validation_errors)
				);
			}

			$secured_files = $this->processFileUploads($_FILES['files'], $args);
			if (empty($secured_files)) {
				error_log('Images not processed');
				return $this->createStandardResponse(
					false,
					[],
					'No valid files could be processed'
				);
			}


			$queue = JVB()->queue();
			error_log('Queuing Operation...');
			$queue->queueOperation(
				'image_upload',
				$args['user'],
				[
					'secured_files' => $secured_files,
					'upload_map'	=>  explode(',',$request->get_param('upload_map')),
					'content' => $args['content'],
					'post_id' => $args['post_id'],
					'term_id' => $args['term_id'],
					'field_name' => $args['field_name'],
					'mode' => $args['mode'],
					'operation_id' => $args['id']
				],
				[
					'operation_id' => $args['upload'],
					'chunk_key'	=> 'secured_files',
					'chunk_size' => 5,
					'priority' => 'high',
					'notification' => true,
				]
			);

			error_log('Adding dependent operations...');


			if ($args['mode'] !== 'selection') {
				$queue->queueOperation(
					'attach_upload_to_content',
					$args['user'],
					$args,
					[
						'operation_id' => $args['id'],
						'priority' => 'high',
						'depends_on' => $args['upload']
					]
				);
			}

			$queue->queueOperation(
				'temporary_cleanup',
				$args['user'],
				[
					'files' => $secured_files,
					'content' => $args['content'],
					'user' => $args['user']
				],
				[
					'priority' => 'low',
					'chunk_size'	=> 5,
					'chunk_key'	=> 'files',
					'depends_on' => $args['upload'],
				]
			);

			return $this->createStandardResponse(
				true,
				[
					'files_count' => count($secured_files),
					'operation_id' => $args['id'],
					'upload_operation_id' => $args['upload']
				],
				'Files secured and queued for processing'
			);

		} catch (Exception $e) {
			// Error handling...
			JVB()->error()->log(
				'[UploadRoutes]:handleUploadRequest',
				$e->getMessage(),
				[
					'request_data' => $request->get_params(),
					'files_info' => $this->getFilesInfo($_FILES),
					'trace' => $e->getTraceAsString()
				]
			);

			return $this->createStandardResponse(
				false,
				['error_code' => 'upload_failed'],
				'Upload processing failed: ' . $e->getMessage()
			);
		}
	}

	protected function processFileUploads(array $files, array $args): array
	{
		$uploader = new UploadManager($args['content'], $args['user']);
		$secured_files = [];

		// Handle different file array structures
//		if ($args['mode'] === 'selection') {
//			// Selection mode: files[group][index]
//			foreach ($files['tmp_name'] as $group => $images) {
//				if (is_array($images)) {
//					foreach ($images as $index => $tmp_name) {
//						if ($files['error'][$group][$index] === UPLOAD_ERR_OK) {
//							$file = [
//								'name' => $files['name'][$group][$index],
//								'type' => $files['type'][$group][$index],
//								'tmp_name' => $tmp_name,
//								'error' => $files['error'][$group][$index],
//								'size' => $files['size'][$group][$index]
//							];
//							$secured_files[$group][] = $uploader->secureUploadedFile($file);
//						}
//					}
//				}
//			}
//		} else {
			// Direct mode: files[index] or files[0][index]
			$tmp_names = isset($files['tmp_name'][0]) && is_array($files['tmp_name'][0])
				? $files['tmp_name'][0]
				: $files['tmp_name'];

			foreach ($tmp_names as $index => $tmp_name) {
				$file_data = isset($files['tmp_name'][0]) && is_array($files['tmp_name'][0]) ? [
					'name' => $files['name'][0][$index],
					'type' => $files['type'][0][$index],
					'tmp_name' => $tmp_name,
					'error' => $files['error'][0][$index],
					'size' => $files['size'][0][$index]
				] : [
					'name' => $files['name'][$index],
					'type' => $files['type'][$index],
					'tmp_name' => $tmp_name,
					'error' => $files['error'][$index],
					'size' => $files['size'][$index]
				];

				if ($file_data['error'] === UPLOAD_ERR_OK) {
					$secured_files[] = $uploader->secureUploadedFile($file_data);
				}
			}
//		}

		return $secured_files;
	}

    /**
     * Process upload operation in the background
     */
    /**
     * @param WP_Error|array $result
     * @param object $operation
     * @param array $data
     *
     * @return array|WP_Error
     */
    public function processOperation(WP_Error|array $result, object $operation, array $data):WP_Error|array
    {
        switch ($operation->type) {
            case 'image_upload':
                return $this->processImageUpload($result, $operation, $data);
			case 'process_upload_groups':
				return $this->processUploadGroups($result, $operation, $data);
			case 'update_metadata':
				return $this->processMetadataUpdate($result, $operation, $data);
			case 'temporary_cleanup':
                return $this->processTemporaryCleanup($result, $operation, $data);
            case 'attach_upload_to_content':
                return $this->attachUploadToContent($result, $operation, $data);
            default:
                return $result;
        }
    }

	/**
	 * Process attachment metadata updates
	 */
	protected function processAttachmentMetadata(WP_Error|array $result, object $operation, array $data): WP_Error|array
	{
		try {
			$metadata_updates = $data['metadata_updates'];
			$updated_count = 0;
			$failed_count = 0;
			$results = [];

			foreach ($metadata_updates as $update) {
				try {
					$attachment_id = (int)$update['attachment_id'];
					$upload_id = $update['upload_id'];

					// Verify attachment exists and user has permission
					if (!$this->verifyAttachmentAccess($attachment_id, $operation->user_id)) {
						$failed_count++;
						$results[] = [
							'upload_id' => $upload_id,
							'attachment_id' => $attachment_id,
							'success' => false,
							'error' => 'Attachment not found or no permission'
						];
						continue;
					}

					// Apply metadata updates
					$updated_fields = [];

					// Update alt text
					if (isset($update['alt'])) {
						$alt_text = sanitize_text_field($update['alt']);
						update_post_meta($attachment_id, '_wp_attachment_image_alt', $alt_text);
						$updated_fields[] = 'alt';
					}

					// Update title
					if (isset($update['title'])) {
						$title = sanitize_text_field($update['title']);
						wp_update_post([
							'ID' => $attachment_id,
							'post_title' => $title
						]);
						$updated_fields[] = 'title';
					}

					// Update caption
					if (isset($update['caption'])) {
						$caption = sanitize_textarea_field($update['caption']);
						wp_update_post([
							'ID' => $attachment_id,
							'post_excerpt' => $caption
						]);
						$updated_fields[] = 'caption';
					}

					// Update description
					if (isset($update['description'])) {
						$description = sanitize_textarea_field($update['description']);
						wp_update_post([
							'ID' => $attachment_id,
							'post_content' => $description
						]);
						$updated_fields[] = 'description';
					}

					$updated_count++;
					$results[] = [
						'upload_id' => $upload_id,
						'attachment_id' => $attachment_id,
						'success' => true,
						'updated_fields' => $updated_fields
					];

				} catch (Exception $e) {
					$failed_count++;
					$results[] = [
						'upload_id' => $update['upload_id'] ?? 'unknown',
						'attachment_id' => $update['attachment_id'] ?? 0,
						'success' => false,
						'error' => $e->getMessage()
					];
				}
			}

			return [
				'success' => true,
				'data' => $results,
				'updated_count' => $updated_count,
				'failed_count' => $failed_count,
				'message' => "Metadata updated: {$updated_count} succeeded, {$failed_count} failed"
			];

		} catch (Exception $e) {
			JVB()->error()->log(
				'[UploadRoutes]:processAttachmentMetadata',
				$e->getMessage(),
				[
					'operation_id' => $operation->id,
					'user_id' => $operation->user_id
				]
			);

			return new WP_Error(
				'metadata_processing_failed',
				$e->getMessage(),
				[
					'operation_id' => $operation->id,
					'error_code' => 'metadata_update_error'
				]
			);
		}
	}

	/**
	 * Verify user has access to attachment
	 */
	protected function verifyAttachmentAccess(int $attachment_id, int $user_id): bool
	{
		$attachment = get_post($attachment_id);

		if (!$attachment || $attachment->post_type !== 'attachment') {
			return false;
		}

		// Check if user owns the attachment or has admin privileges
		return ($attachment->post_author == $user_id) || current_user_can('manage_options');
	}

	protected function processImageUpload(WP_Error|array $result, object $operation, array $data): WP_Error|array
	{
		try {
			$uploader = new UploadManager($data['content'], $operation->user_id);
			$processed_results = [];

			// Extract frontend metadata if available
			$frontend_metadata = $this->extractFrontendMetadata($data);


			foreach ($data['secured_files'] as $index => $secured_file) {
				$result = $uploader->processImageFromStorage(
					$secured_file['temp_path'],
					$data['content'],
					(int)($data['post_id'] ?? 0),
					(int)($data['term_id'] ?? 0),
					$secured_file['original_name'] ?? ''
				);

				if (!is_wp_error($result)) {
					$standardized = $this->standardizeImageResult($result);

					// FIX: Proper mapping using consistent naming
					if (isset($data['upload_map'][$index])) {
						$standardized['upload_id'] = $data['upload_map'][$index];
					} else {
						error_log("Warning: No upload_map found for index {$index}");
						$standardized['upload_id'] = 'unknown_' . $index;
					}

					$file_metadata = $frontend_metadata[$index] ?? null;
					if ($file_metadata) {
						$this->applyFrontendMetadata($standardized['attachment_id'], $file_metadata);
					}

					$processed_results[] = $standardized;
				}
			}

			// Update field metadata if specified
			if ($data['field_name']) {
				$this->updateFieldMetadata($data, $processed_results);
			}

			return [
				'success' => true,
				'result' => $processed_results
			];

		} catch (Exception $e) {
			JVB()->error()->log(
				'[UploadRoutes]:processImageUpload',
				$e->getMessage(),
				[
					'operation_id' => $operation->id,
					'user_id' => $operation->user_id,
					'content' => $data['content'],
					'upload_map' => $data['upload_map'] ?? 'missing'
				]
			);

			return [
				'success'	=> false,
				'result'	=> $e->getMessage()
			];
		}
	}
	protected function extractFrontendMetadata(array $data): array
	{
		$metadata = [];

		// Check if we have metadata in the request
		if (isset($_POST['metadata'])) {
			foreach ($_POST['metadata'] as $index => $meta_json) {
				$decoded = json_decode($meta_json, true);
				if ($decoded) {
					$metadata[$index] = $decoded;
				}
			}
		}

		return $metadata;
	}

	protected function applyFrontendMetadata(int $attachment_id, array $metadata): void
	{
		// Update alt text
		if (!empty($metadata['alt'])) {
			update_post_meta($attachment_id, '_wp_attachment_image_alt', sanitize_text_field($metadata['alt']));
		}

		// Update title
		if (!empty($metadata['title'])) {
			wp_update_post([
				'ID' => $attachment_id,
				'post_title' => sanitize_text_field($metadata['title'])
			]);
		}

		// Update caption
		if (!empty($metadata['caption'])) {
			wp_update_post([
				'ID' => $attachment_id,
				'post_excerpt' => sanitize_textarea_field($metadata['caption'])
			]);
		}
	}
	protected function countProcessedFiles(array $processed_results): int
	{
		$count = 0;
		foreach ($processed_results as $result) {
			if (is_array($result) && isset($result[0])) {
				// Grouped results
				$count += count($result);
			} else {
				// Single result
				$count++;
			}
		}
		return $count;
	}
	protected function updateFieldMetadata(array $data, array $processed_results): void
	{
		if (!$data['field_name']) return;

		$type = ($data['post_id']) ? 'post' : (($data['term_id']) ? 'term' : false);
		if (!$type) return;

		$ID = ($type == 'post') ? $data['post_id'] : $data['term_id'];
		$meta = new MetaManager($ID, $type);

		// Get attachment IDs from processed results
		$attachment_ids = [];
		if ($data['mode'] == 'selection') {
			// Selection mode: grouped results
			foreach ($processed_results as $group => $files) {
				foreach ($files as $file_result) {
					$attachment_ids[] = $file_result['attachment_id'];
				}
			}
		} else {
			// Direct mode: flat array
			foreach ($processed_results as $file_result) {
				$attachment_ids[] = $file_result['attachment_id'];
			}
		}

		if (!empty($attachment_ids)) {
			$value = implode(',', array_map('absint', $attachment_ids));
			$meta->updateValue($data['field_name'], $value);
		}
	}

	/**
	 * Standardize image processing results for frontend
	 */
	protected function standardizeImageResult(array $result): array
	{
		return [
			'attachment_id' => $result['attachment_id'],
			'url' => $result['url'],
			'file_path' => $result['file'] ?? '',
			'success' => $result['success'] ?? true,
			'metadata' => [
				'alt_text' => get_post_meta($result['attachment_id'], '_wp_attachment_image_alt', true),
				'title' => get_the_title($result['attachment_id']),
				'mime_type' => get_post_mime_type($result['attachment_id'])
			]
		];
	}

	/**
	 * Get files info for error logging
	 */
	protected function getFilesInfo(array $files): array
	{
		return [
			'files_count' => is_array($files['name']) ? count($files['name']) : 1,
			'total_size' => is_array($files['size']) ? array_sum($files['size']) : $files['size'],
			'file_types' => is_array($files['type']) ? array_unique($files['type']) : [$files['type']]
		];
	}

    /**
     * @param WP_Error $result
     * @param object $operation
     * @param array $data
     *
     * @return array|WP_Error
     */
    public function processTemporaryCleanup(WP_Error|array $result, object $operation, array $data):WP_Error|array
    {
		error_log('Processing Temporary Cleanup...');
        $JVB = JVB();
        $logger = $JVB->error();

		$uploader = new UploadManager($data['content'], $data['user']);

        // Check if we have files to clean up
        if (empty($data['files']) || !is_array($data['files'])) {
            return ['success' => true, 'result' => 'No files to clean up'];
        }

        $success_count = 0;
        $error_count = 0;
        $skipped_count = 0;

        foreach ($data['files'] as $file_data) {
            // Skip if we don't have a temp path
            if (empty($file_data['temp_path'])) {
                $skipped_count++;
                continue;
            }

            $temp_path = $file_data['temp_path'];

            try {
                // Only remove if the file exists
                if (file_exists($temp_path)) {
                    if (@unlink($temp_path)) {
                        $success_count++;
                    } else {
                        $error_count++;
                        $logger->log(
                            'temp_cleanup',
                            'Failed to delete temporary file',
                            ['file' => $temp_path],
                            'warning'
                        );
                    }
                } else {
                    // File already gone, count as success
                    $skipped_count++;
                }
            } catch (Exception $e) {
                $error_count++;
                $logger->log(
                    '[UploadManager]:processTempCleanupOperation',
                    'Error during temp file cleanup: ' . $e->getMessage(),
                    ['file' => $temp_path],
                    'warning'
                );
            }
        }

        // After cleaning individual files, check if directory is empty and can be removed
        $uploader->cleanupEmptyTempDirs($operation->user_id);

        return [
            'success' => true,
			'result' => [
				'removed' => $success_count,
				'errors' => $error_count,
				'skipped' => $skipped_count,
				'message' => "Temporary files cleanup completed: {$success_count} removed, {$error_count} errors, {$skipped_count} skipped"
			]
        ];
    }

	protected function attachUploadToContent($result, $operation, $args):array|false
	{
		error_log('STARTING ATTACHING UPLOAD');
		error_log('Upload ID: '.print_r($args['upload'], true));
		$uploadOperation = JVB()->queue()->getOperation($args['upload'], true);
		error_log('Upload Operation from Attach Image to Content: '.print_r($uploadOperation, true));
		error_log('Args: '.print_r($args, true));


		$field = ($args['field_name']??false) ? $args['field_name'] : 'post_thumbnail';
		$ID = $args['post_id']??$args['term_id'];
		$return = [
			'success'	=> false,
			'results'	=> []
		];
		$images = array_map('absint', array_column(json_decode($uploadOperation->result, true),'attachment_id'));
		error_log('Images: '.print_r($images, true));
		error_log('Parsed ID: '.print_r($ID, true));
		if (array_key_exists('content', $args) && $args['content'] === 'options') {
			$meta = new MetaManager(null, 'options');
			if (str_contains($args['field_name'], ':')) {
				$result = $meta->updateRepeaterRowField($args['field_name'], (count($images) === 1) ? $images[0] : $images);
			} else {
				$result = $meta->updateValue($args['field_name'], (count($images) === 1) ? $images[0] : $images);
			}
			$return = [
				'success'	=> $result,
			];
		} elseif (str_starts_with($field, 'new_') && !$ID) {
			//Create post
			$success = [
				'created'	=> [],
				'errors'	=> []
			];
			$i = 1;
			foreach ($images as $img) {
				$ID = wp_insert_post([
					'post_type'		=> jvbCheckBase($args['content']),
					'post_author'	=> $operation->user_id,
					'post_title'	=> 'New '.JVB_CONTENT[$args['content']]['singular'].' '.$i,
					'post_content'	=> ' ',
					'post_excerpt'	=> ' '
				], true);

				error_log('Created Post: '.print_r($ID, true));

				if ($ID && !is_wp_error($ID)) {
					$success['created'][] = $ID;
					set_post_thumbnail($ID, $img);
				}else {
					$success['errors'][] = $ID;
				}
				$i++;
			}
			$return = [
				'success'	=> true,
				'result'	=> $success
			];
		} else {
			if ($args['post_id']) {
				$type = 'post';
			} elseif ($args['term_id']) {
				$type = 'term';
			}
			error_log('ID: '.print_r($ID, true));
			error_log('Type: '.print_r($type, true));
			$meta = new MetaManager($ID, $type);

			$images = implode(',', $images);
			error_log('Processed Image IDs: '.$images);
			$success = $meta->updateValue($field, $images);

			$return = [
				'success'	=> $success,
				'result'	=> 'Field '.$field.' updated successfully'
			];
		}

		return $return;
	}

	protected function createStandardResponse(bool $success, array $data = [], string $message = '', string $operation_id = ''): WP_REST_Response
	{
		$response = [
			'success' => $success,
			'message' => $message,
			'data' => $data,
			'timestamp' => current_time('mysql')
		];

		if ($operation_id) {
			$response['operation_id'] = $operation_id;
		}

		return new WP_REST_Response($response);
	}

	/**
	 * Handle metadata update requests
	 */
	public function handleMetadataUpdate(WP_REST_Request $request): WP_REST_Response
	{
		try {
			$data = $request->get_params();

			// Validate user permissions
			if (!$this->userCheck($data['user'])) {
				return $this->createStandardResponse(
					false,
					['error_code' => 'invalid_user'],
					'Invalid user specified'
				);
			}

			if (!empty($data['attachment_ids'])) {
				// Phase 2B: Direct attachment update (images already processed)
				return $this->updateAttachmentMetadataDirect($data);
			}
			elseif (!empty($data['operation_id'])) {
				// Phase 2A: Queue metadata update with dependency on upload operation
				return $this->queueMetadataUpdate($data);
			}

			return $this->createStandardResponse(
				false,
				['error_code' => 'missing_identifiers'],
				'Must provide either attachment_ids or operation_id'
			);

		} catch (Exception $e) {
			JVB()->error()->log(
				'[UploadRoutes]:handleMetadataUpdate',
				$e->getMessage(),
				[
					'request_data' => $request->get_params(),
					'trace' => $e->getTraceAsString()
				]
			);

			return $this->createStandardResponse(
				false,
				['error_code' => 'metadata_update_failed'],
				'Metadata update failed: ' . $e->getMessage()
			);
		}
	}
	/**
	 * Update metadata directly on completed attachments
	 */
	protected function updateAttachmentMetadataDirect(array $data): WP_REST_Response
	{
		$updated_count = 0;
		$errors = [];

		foreach ($data['attachment_ids'] as $attachment_id) {
			try {
				// Verify attachment exists and user has permission
				if (!$this->canUserEditAttachment($data['user'], $attachment_id)) {
					$errors[] = "No permission to edit attachment {$attachment_id}";
					continue;
				}

				$this->applyMetadataToAttachment($attachment_id, $data['metadata']);
				$updated_count++;

			} catch (Exception $e) {
				$errors[] = "Failed to update attachment {$attachment_id}: " . $e->getMessage();
			}
		}

		return $this->createStandardResponse(
			$updated_count > 0,
			[
				'updated_count' => $updated_count,
				'errors' => $errors,
				'attachment_ids' => $data['attachment_ids']
			],
			$updated_count > 0 ?
				"Updated metadata for {$updated_count} attachment(s)" :
				'No attachments were updated'
		);
	}
	/**
	 * Queue metadata update with dependency on upload operation
	 */
	protected function queueMetadataUpdate(array $data): WP_REST_Response
	{
		$queue = JVB()->queue();

		// Generate unique operation ID for this metadata update
		$metadata_operation_id = 'meta_' . uniqid();

		$queue->queueOperation(
			'update_metadata',
			$data['user'],
			[
				'original_operation_id' => $data['operation_id'],
				'upload_ids' => $data['upload_ids'] ?? [],
				'metadata' => $data['metadata']
			],
			[
				'operation_id' => $metadata_operation_id,
				'depends_on' => $data['operation_id'], // Wait for upload completion
				'priority' => 'medium',
				'notification' => false // Don't spam notifications for metadata updates
			]
		);

		return $this->createStandardResponse(
			true,
			[
				'metadata_operation_id' => $metadata_operation_id,
				'depends_on' => $data['operation_id'],
				'upload_ids' => $data['upload_ids'] ?? []
			],
			'Metadata update queued - will apply after upload completes'
		);
	}

	/**
	 * Process metadata update operation (called by queue processor)
	 */
	public function processMetadataUpdate(WP_Error|array $result, object $operation, array $data): WP_Error|array
	{
		try {
			// Get the completed upload operation to map upload IDs to attachment IDs
			$uploadOperation = JVB()->queue()->getOperation($data['original_operation_id']);

			if (!$uploadOperation || $uploadOperation->status !== 'completed') {
				throw new Exception('Original upload operation not found or not completed');
			}

			$uploadResults = json_decode($uploadOperation->result, true);
			if (!$uploadResults || !$uploadResults['success']) {
				throw new Exception('Original upload operation failed');
			}

			// Build mapping from upload IDs to attachment IDs
			$uploadIdToAttachment = $this->buildUploadToAttachmentMapping(
				$data['upload_ids'],
				$uploadResults['data']
			);

			if (empty($uploadIdToAttachment)) {
				throw new Exception('No valid upload ID to attachment ID mappings found');
			}

			// Apply metadata to each mapped attachment
			$updated_count = 0;
			$errors = [];

			foreach ($uploadIdToAttachment as $uploadId => $attachmentId) {
				try {
					$this->applyMetadataToAttachment($attachmentId, $data['metadata']);
					$updated_count++;
				} catch (Exception $e) {
					$errors[] = "Upload {$uploadId} (Attachment {$attachmentId}): " . $e->getMessage();
				}
			}

			return [
				'success' => $updated_count > 0,
				'result'	=> [
					'updated_count' => $updated_count,
					'mappings' => $uploadIdToAttachment,
					'errors' => $errors,
					'message' => "Applied metadata to {$updated_count} attachment(s)"
				]
			];

		} catch (Exception $e) {
			JVB()->error()->log(
				'[UploadRoutes]:processMetadataUpdate',
				$e->getMessage(),
				[
					'operation_id' => $operation->id,
					'original_operation_id' => $data['original_operation_id'] ?? 'unknown'
				]
			);

			return [
				'success'	=> false,
				'result'	=> $e->getMessage()
			];
		}
	}

	/**
	 * Build mapping from frontend upload IDs to WordPress attachment IDs
	 */
	protected function buildUploadToAttachmentMapping(array $uploadIds, array $uploadResults): array
	{
		$mapping = [];

		// Handle both flat array and grouped results
		if (isset($uploadResults[0]) && is_array($uploadResults[0]) && isset($uploadResults[0]['attachment_id'])) {
			// Flat array of results
			foreach ($uploadResults as $index => $result) {
				if (isset($uploadIds[$index]) && isset($result['attachment_id'])) {
					$mapping[$uploadIds[$index]] = $result['attachment_id'];
				}
			}
		} else {
			// Grouped results (selection mode)
			$resultIndex = 0;
			foreach ($uploadResults as $group) {
				if (is_array($group)) {
					foreach ($group as $result) {
						if (isset($uploadIds[$resultIndex]) && isset($result['attachment_id'])) {
							$mapping[$uploadIds[$resultIndex]] = $result['attachment_id'];
						}
						$resultIndex++;
					}
				}
			}
		}

		return $mapping;
	}

	/**
	 * Apply metadata to a WordPress attachment
	 */
	protected function applyMetadataToAttachment(int $attachment_id, array $metadata): void
	{
		$updates = [];

		// Handle title update
		if (isset($metadata['title']) && !empty($metadata['title'])) {
			$updates['post_title'] = sanitize_text_field($metadata['title']);
		}

		// Handle caption update
		if (isset($metadata['caption'])) {
			$updates['post_excerpt'] = sanitize_textarea_field($metadata['caption']);
		}

		// Update post if we have title or caption changes
		if (!empty($updates)) {
			$updates['ID'] = $attachment_id;
			$result = wp_update_post($updates);

			if (is_wp_error($result)) {
				throw new Exception('Failed to update attachment post: ' . $result->get_error_message());
			}
		}

		// Handle alt text update (stored as post meta)
		if (isset($metadata['alt'])) {
			$alt_result = update_post_meta(
				$attachment_id,
				'_wp_attachment_image_alt',
				sanitize_text_field($metadata['alt'])
			);

			if ($alt_result === false) {
				throw new Exception('Failed to update alt text meta');
			}
		}

		// Handle any custom metadata fields
		if (isset($metadata['custom']) && is_array($metadata['custom'])) {
			foreach ($metadata['custom'] as $key => $value) {
				$meta_key = 'jvb_' . sanitize_key($key);
				update_post_meta($attachment_id, $meta_key, sanitize_text_field($value));
			}
		}

		// Clear any attachment caches
		clean_attachment_cache($attachment_id);
	}

	/**
	 * Check if user can edit attachment
	 */
	protected function canUserEditAttachment(int $user_id, int $attachment_id): bool
	{
		// Basic permission check - attachment must exist
		$attachment = get_post($attachment_id);
		if (!$attachment || $attachment->post_type !== 'attachment') {
			return false;
		}

		// User must be the author or have edit capabilities
		if ($attachment->post_author == $user_id) {
			return true;
		}

		// Check if user has edit_posts capability
		$user = get_user_by('id', $user_id);
		return $user && user_can($user, 'skip_moderation');
	}

	public function handleGroupingRequest(WP_REST_Request $request): WP_REST_Response
	{
		error_log('Handling Group Request from UploadRoutes.php');
		try {
			$data = $request->get_params();
			error_log('Processing Data: '.print_r($data, true));

			if (!array_key_exists($data['content'], JVB_CONTENT)) {
				return $this->createStandardResponse(
					false,
					['error_code' => 'invalid_content'],
					'Invalid content type specified'
				);
			}


			//Get the operationIDs of the image uploads for the depends on
			$operationIDs = [];
			foreach ($data['posts'] as $index => $post) {
				foreach ($post['images'] as $img) {
					if (array_key_exists('operationId', $img)) {
						$operationIDs[] = $img['operationId'];
					}
				}
			}
			$operationIDs = array_unique($operationIDs);


			$queue = JVB()->queue();
			$queue->queueOperation(
				'process_upload_groups',
				$data['user'],
				$data,
				[
					'operation_id'	=> $data['id'],
					'depends_on'	=> $operationIDs
				]
			);

			return $this->createStandardResponse(
				true,
				[
					'operation_id' => $data['id'],
					'count' => count($data['posts'] ?? [])
				],
				'Operation queued successfully'
			);

		} catch (Exception $e) {
			JVB()->error()->log(
				'[UploadRoutes]:handleGroupingRequest',
				$e->getMessage(),
				[
					'request_data' => $request->get_params(),
					'trace' => $e->getTraceAsString()
				]
			);

			return $this->createStandardResponse(
				false,
				['error_code' => 'grouping_failed'],
				'Grouping operation failed: ' . $e->getMessage()
			);
		}
	}

	protected function processUploadGroups(WP_Error|array $result, object $operation, array $data): WP_Error|array
	{
		try {
			error_log('Processing Upload Groups - Data: ' . print_r($data, true));

			$queue = JVB()->queue();
			$all_uploaded_images = [];
			$used_upload_ids = [];

			// Collect all uploaded images from dependencies
			foreach(json_decode($operation->dependencies, true) as $operationID) {
				$o = $queue->getOperation($operationID);
				$r = json_decode($o->result, true);

				error_log('Saved operation'.print_r($r, true));
				if ($r['success'] && isset($r['data'])) {
					foreach ($r['data'] as $img) {
						$uploadKey = $img['upload_id'];
						$all_uploaded_images[$uploadKey] = [
							'upload_id' => $img['upload_id'],
							'attachment_id' => (int)$img['attachment_id'],
							'operation_id' => $operationID
						];
					}
				}
			}


			$content = jvbCheckBase($data['content']);
			$user = (int)$data['user'];
			$created_posts = [];

			foreach ($data['posts'] as $index => $post) {
				$new_post_id = wp_insert_post([
					'post_type' => $content,
					'post_author' => $user,
					'post_status' => 'draft',
					'post_title' => array_key_exists('post_title', $post['fields'])
						? sanitize_text_field($post['fields']['post_title'])
						: 'New ' . JVB_CONTENT[$data['content']]['singular'],
					'post_excerpt' => array_key_exists('post_excerpt', $post['fields'])
						? sanitize_text_field($post['fields']['post_excerpt'])
						: '',
				]);

				if ($new_post_id && !is_wp_error($new_post_id)) {
					$created_posts[] = $new_post_id;

					// Extract featured image
					$featured_upload_id = array_key_exists('featured', $post['fields'])
						? $post['fields']['featured']
						: $post['images'][0]['upload_id'] ?? null;

					$featured_attachment_id = null;
					$gallery_attachment_ids = [];

					// Process all images for this post
					foreach ($post['images'] as $img) {
						$upload_id = $img['upload_id'];
						$used_upload_ids[] = $upload_id;

						if (isset($all_uploaded_images[$upload_id])) {
							$attachment_id = $all_uploaded_images[$upload_id]['attachment_id'];

							if ($upload_id === $featured_upload_id) {
								$featured_attachment_id = $attachment_id;
							} else {
								$gallery_attachment_ids[] = $attachment_id;
							}
						} else {
							error_log("Warning: Could not find attachment for upload_id: {$upload_id}");
						}
					}

					// Set featured image
					if ($featured_attachment_id) {
						set_post_thumbnail($new_post_id, (int)$featured_attachment_id);
					}

					// Set gallery images
					if (!empty($gallery_attachment_ids)) {
						$meta = new MetaManager($new_post_id, 'post');
						$fields = jvbGetFields($data['content'], 'post');

						foreach ($fields as $name => $config) {
							if ($config['type'] === 'gallery') {
								$meta->updateValue($name, implode(',', $gallery_attachment_ids));
								break;
							}
						}
					}
				}
			}

			// Cleanup unused uploaded images
			$unused_images = array_diff_key($all_uploaded_images, array_flip($used_upload_ids));
			$cleanup_result = $this->cleanupUnusedImages($unused_images);

			return [
				'success' => true,
				'result'	=> [
					'created_posts' => $created_posts,
					'total_posts' => count($created_posts),
					'used_images' => count($used_upload_ids),
					'cleaned_up_images' => $cleanup_result['cleaned_count'],
					'cleanup_errors' => $cleanup_result['errors'],
					'message' => "Created " . count($created_posts) . " post(s) from uploads"
				]
			];

		} catch (Exception $e) {
			JVB()->error()->log(
				'[UploadRoutes]:processUploadGroups',
				$e->getMessage(),
				[
					'operation_id' => $operation->id,
					'user_id' => $operation->user_id,
					'posts_count' => count($data['posts'] ?? [])
				]
			);

			return [
				'success' => false,
				'result' => $e->getMessage()
			];
		}
	}

	protected function cleanupUnusedImages(array $unused_images): array
	{
		$cleaned_count = 0;
		$errors = [];

		foreach ($unused_images as $upload_id => $image_data) {
			try {
				$attachment_id = $image_data['attachment_id'];

				// Verify this attachment exists and wasn't already deleted
				if (get_post($attachment_id)) {
					// Delete the attachment and its files
					$deleted = wp_delete_attachment($attachment_id, true);

					if ($deleted) {
						$cleaned_count++;
						error_log("Cleaned up unused image: attachment_id {$attachment_id}, upload_id {$upload_id}");
					} else {
						$errors[] = "Failed to delete attachment {$attachment_id} for upload {$upload_id}";
					}
				} else {
					// Attachment already doesn't exist, count as cleaned
					$cleaned_count++;
				}

			} catch (Exception $e) {
				$errors[] = "Error cleaning up upload {$upload_id}: " . $e->getMessage();
			}
		}

		return [
			'cleaned_count' => $cleaned_count,
			'errors' => $errors
		];
	}

	function getAttachmentID(array $image, array $storedResults): int|false
	{
		error_log('Looking for upload_id: ' . ($image['upload_id'] ?? 'NOT SET'));
		error_log('Available results: ' . print_r(array_keys($storedResults), true));

		foreach ($storedResults as $operationID => $uploads) {
			foreach ($uploads as $upload) {
				// FIX: Handle both case variations
				$stored_upload_id = $upload['upload_id'];
				$search_upload_id = $image['upload_id'];

				if ($stored_upload_id === $search_upload_id) {
					error_log("Found match! upload_id: {$search_upload_id} -> attachment_id: {$upload['attachment_id']}");
					return (int)$upload['attachment_id'];
				}
			}
		}

		error_log("No match found for upload_id: " . ($image['upload_id'] ?? 'MISSING'));
		return false;
	}

	function extractFeaturedItem(array &$items, string $meta_key = 'featured'): array
	{
		// Handle empty array
		if (empty($items)) {
			return [
				'featured' => null,
				'remaining' => []
			];
		}

		$featured_index = null;

		// First pass: look for featured item
		foreach ($items as $index => $item) {
			if (isset($item['meta'][$meta_key])) {
				$featured_index = $index;
				break;
			}
		}

		// If no featured item found, use first item (index 0)
		if ($featured_index === null) {
			$featured_index = 0;
		}

		// Extract the featured/first item
		$featured = $items[$featured_index];

		// Remove the item from the original array
		unset($items[$featured_index]);

		// Re-index the array to maintain sequential indices
		$remaining = array_values($items);

		return [
			'featured' => $featured,
			'remaining' => $remaining
		];
	}

	protected function mapUploadIdsToAttachments(array $uploadIds, array $uploadedImages): array
	{
		$mappedImages = [];

		foreach ($uploadIds as $uploadId) {
			$imageData = $this->findImageByUploadId($uploadId, $uploadedImages);
			if ($imageData) {
				$mappedImages[] = $imageData;
			}
		}

		return $mappedImages;
	}

	protected function findImageByUploadId(string $uploadId, array $uploadedImages): ?array
	{
		// Handle both flat array and grouped results
		foreach ($uploadedImages as $image) {
			if (is_array($image)) {
				// If it's a grouped result, check each image in the group
				if (isset($image[0]) && is_array($image[0])) {
					foreach ($image as $groupImage) {
						if (isset($groupImage['upload_id']) && $groupImage['upload_id'] === $uploadId) {
							return $groupImage;
						}
					}
				} else {
					// Single image result
					if (isset($image['upload_id']) && $image['upload_id'] === $uploadId) {
						return $image;
					}
				}
			}
		}

		return null;
	}

	protected function determineFeaturedImage(array $group, array $groupImages): ?int
	{
		// Check if user has starred a specific image
		if (!empty($group['featured_upload_id'])) {
			foreach ($groupImages as $image) {
				if (isset($image['upload_id']) && $image['upload_id'] === $group['featured_upload_id']) {
					return $image['attachment_id'];
				}
			}
		}

		// Default to first image
		return !empty($groupImages) ? $groupImages[0]['attachment_id'] : null;
	}

	protected function sanitizeGroupMetadata(array $metadata): array
	{
		$sanitized = [];

		foreach ($metadata as $key => $value) {
			$sanitizedKey = sanitize_key($key);

			if (is_string($value)) {
				$sanitized[$sanitizedKey] = sanitize_text_field($value);
			} elseif (is_array($value)) {
				$sanitized[$sanitizedKey] = array_map('sanitize_text_field', $value);
			} else {
				$sanitized[$sanitizedKey] = $value;
			}
		}

		return $sanitized;
	}

	protected function generatePostTitle(string $content, int $userId): string
	{
		$username = get_user_meta($userId, 'first_name', true) ?: get_user_meta($userId, 'display_name', true);
		$link = get_user_meta($userId, BASE.'link', true);
		$city = function_exists('jvbArtistCity') ? jvbArtistCity($link) : '';

		$title = ucfirst($content);
		if ($username) {
			$title .= ' by ' . $username;
		}
		if ($city) {
			$title .= ' from ' . $city;
		}

		return $title;
	}
}