<?php

/**
 * Pronamic framework edit post
 */
function pronamic_framework_shortcode_edit_post_form($atts, $content = null) {
	$result = '';

	if(is_user_logged_in()) {
		$post_id = filter_input(INPUT_GET, 'post', FILTER_SANITIZE_NUMBER_INT);

		// Post
		$post = get_post($post_id);
		$post_type = get_post_type($post_id);
		$post_type_object = get_post_type_object($post_type);

		if( $post_type_object ) {
			if ( current_user_can( $post_type_object->cap->edit_posts, $post_id ) ) {
				// Query start
				global $wp_query;

				$query = array(
					'p' => $post_id , 
					'post_type' => 'any'
				);
		
				$original_query = $wp_query;
				$wp_query = null;
				$wp_query = new WP_Query($query);
		
				// Template
				ob_start();

				$template = plugin_dir_path(Pronamic_Framework::$file) . '/templates/edit-post-form.php';

				load_template($template, false);
				
				$result = ob_get_clean();
		
				// Query end
				$wp_query = null;
				$wp_query = $original_query;
				wp_reset_postdata();
			}
		}
	}

	return $result;
}

add_shortcode('pronamic_edit_post_form', 'pronamic_framework_shortcode_edit_post_form');

function pronamic_framework_maybe_save_post() {
	if(isset($_POST['pronamic_framework_edit_post_submit'])) {
		$post_ID = filter_input( INPUT_POST, 'post_ID', FILTER_SANITIZE_NUMBER_INT );

		// Post
		$post_title = filter_input( INPUT_POST, 'post_title', FILTER_SANITIZE_STRING );

		$post_content = filter_input( INPUT_POST, 'post_content', FILTER_UNSAFE_RAW );
		$post_content = wp_kses_post( $post_content );

		$post = array(
			'ID' => $post_ID , 
			'post_title' => $post_title , 
			'post_content' => $post_content
		);

		$result = wp_update_post( $post );

		if($result !== 0) {
			
		} else {
			
		}

		// Meta
		$meta = filter_input(INPUT_POST, 'post_meta', FILTER_SANITIZE_STRING, FILTER_REQUIRE_ARRAY);

		foreach($meta as $key => $value) {
			update_post_meta( $post_ID, $key, $value );
		}

		// Attachments
		if(isset($_FILES['post_attachments'])) {
			require_once ABSPATH . 'wp-admin/includes/file.php';
			require_once ABSPATH . 'wp-admin/includes/media.php';
			require_once ABSPATH . 'wp-admin/includes/post.php';

			$post_mime_types = get_post_mime_types();

			foreach($_FILES['post_attachments']['error'] as $key => $error) {
				if($error == UPLOAD_ERR_OK) { // no error
					$tmp_name = $_FILES['post_attachments']['tmp_name'][$key];
					$name = $_FILES['post_attachments']['name'][$key];

					$bits = file_get_contents($tmp_name);

					$result = wp_upload_bits($name, null, $bits);
	
					if($result['error'] === false) { // no error
						$file_type = wp_check_filetype($result['file']);
						
						$keys = array_keys( wp_match_mime_types( array_keys( $post_mime_types ), $file_type ) );
						$type = array_shift( $keys );

						$attachment = array(
							'post_title' => $name ,
							'post_mime_type' => $file_type['type'] , 
							'guid' => $result['url'] , 
							'post_parent' => $post_ID 
						);

						$attachment_id = wp_insert_attachment( $attachment, $result['file'], $post_ID );

						$meta_data = wp_generate_attachment_metadata( $attachment_id, $result['file'] );

						$updated = wp_update_attachment_metadata( $attachment_id, $meta_data );
						
						if($type == 'image') {
							update_post_meta( $post_ID, '_thumbnail_id', $attachment_id );							
						} 
					}
				}
			}
		}
	}
}

add_action('init', 'pronamic_framework_maybe_save_post');