<?php
function _asset_include() {
	// load the views hooks if the views module is enabled
	if (module_exists('views')) require_once(drupal_get_path('module', 'asset') . '/inc/asset_views.inc');

	// Load all our module 'on behalfs'.
	$files = drupal_system_listing('asset_.*\.inc$', drupal_get_path('module', 'asset') . '/inc/modules', 'name', 0);
	foreach ($files as $file) {
		// The filename format is very specific. It must be asset_MODULENAME.inc
		$module = substr_replace($file->name, '', 0, 6);
		if (module_exists($module)) require_once($file->filename);
	}
}

/**
 * Utility function to return an array of available formatters for a file suitable for FAPI #options
 *
 * @param $filename
 *    Filename to retrieve options for.  Will also work with just an extension.
 */
function asset_formatter_options($type = '*', $filename = null) {
	$pos = strrpos($filename, '.');
	if ($pos === false) {
		// allow for case where extension is passed instead of filename
		$ext = $filename;
	} else {
		$ext = substr($filename, $pos +1);
	}
	$formatters = asset_get_formatters();
	$options = array();
	if (is_array($formatters[$type][$ext])) {
		foreach ($formatters[$type][$ext] as $formatter) {
			$options[$formatter['module'] .':'. $formatter['format']] = $formatter['name'];
		}
	}
	if (is_array($formatters[$type]['*'])) {
		foreach ($formatters[$type]['*'] as $formatter) {
			$options[$formatter['module'] .':'. $formatter['format']] = $formatter['name'];
		}
	}
	if (is_array($formatters['*']['*'])) {
		foreach ($formatters['*']['*'] as $formatter) {
			$options[$formatter['module'] .':'. $formatter['format']] = $formatter['name'];
		}
	}
	return $options;
}

/**
 * Get the default formatter for a given type and extension
 */
function asset_get_default_formatter($type, $ext, $teaser = FALSE) {
	$prefix = 'asset_default_formatter_'. ($teaser ? 'teaser_' : '');
	$vars = array(
	$prefix . $type .'_'. $ext,
	$prefix . $type .'_*',
	$prefix .'*_*',
	);
	foreach ($vars as $var) {
		if ($formatter = variable_get($var, false)) {
			break;
		}
	}
	// if var is not set, then cascade through possible formatters to find a suitable one
	if (!$formatter) {
		
		$formatters = asset_get_formatters();

		if (isset ($formatters[$type][$ext][0])) {
			$format = $formatters[$type][$ext][0];
		} elseif (isset($formatters[$type]['*'][0]) ) {
			$format = $formatters[$type]['*'][0];
			
		} else {
			$format = $formatters['*']['*'][0];
		}
		$formatter = $format['module'] .':'. $format['format'];
	}
	
	return $formatter;
}

/**
 * Modified version of file_transfer()
 *
 * Only output image formats and do not require src to be in file_directory_path
 */
function asset_img_output($src) {
	ob_end_clean();
	$mimes = array(
    'jpg' => 'image/jpeg',
    'gif' => 'image/gif',
    'png' => 'image/x-png',
	);
	$info = pathinfo($src);
	if (!$mimes[$info['extension']]) {
		return drupal_not_found();
	}
	header('Content-type: '. $mimes[$info['extension']]);
	if ($fd = fopen($src, 'rb')) {
		while (!feof($fd)) {
			print fread($fd, 1024);
		}
		fclose($fd);
	} else {
		drupal_not_found();
	}
	exit();
}

/**
 * Wrapper for file_check_directory that also checks/adds a matching asset
 */
function asset_check_directory(&$directory, $mode = 0, $form_item = NULL, $form_values = array()) {
	$return = file_check_directory(file_create_path($directory), $mode, $form_item);
	if ($return && $mode && !empty($form_values)) {
		$asset = asset_load(array('dirname' => $form_values['parent'], 'filename' => $form_values['title']));
		if (!$asset) {
			$asset = new stdClass();
			$asset->filepath = $directory;
			$asset->filesize = 0;
			$asset->type = 'directory';
			asset_save($asset, $form_values);
		}
	}
	return $return;
}

/**
 * Helper function to build a query string from an array
 */
function asset_build_query($data) {
	foreach ($data as $k => $v) {
		$items[] = "$k=$v";
	}
	return join('&', $items);
}

/**
 * wrapper around pathinfo() that strips file_directory_path from path and .
 * from dirname
 */
function asset_pathinfo($path) {
	$path = trim(str_replace(file_directory_path(), '', $path), '/');
	$info = pathinfo($path);
	if ($info['dirname'] == '.') {
		$info['dirname'] = '';
	}
	return $info;

}
?>