<?php
/* $Id$ */

/**
*Define all menu paths in one central place. This makes it easier to change the paths without having to search the entire code.
*/
function _vocabindex_menu_paths($path)
{
	$paths=array(
		'taxonomy'=>'admin/content/taxonomy',
		'admin_main'=>'admin/content/vocabindex',
		'admin_paths'=>'admin/content/vocabindex/paths',
		'admin_refresh'=>'admin/content/vocabindex/refresh',
		'admin_settings'=>'admin/content/vocabindex/settings',
	);
	
	return $paths[$path];
}

/**
*Implementation of hook_perm()
*/
function vocabindex_perm()
{
	return array('manage vocabulary index pages', 'view vocabulary index pages');
}

/**
*Implementation of hook_menu()
*/
function vocabindex_menu()
{
	//The settings page
	$items[_vocabindex_menu_paths('admin_main')]=array(
		'title'=>'Vocabulary index pages',
		'description'=>'Create index pages for vocabularies.',
		'access arguments'=>array('manage vocabulary index pages'),
		'page callback'=>'vocabindex_page_admin_paths',
		'file'=>'vocabindex.admin.inc',
	);
	
	$items[_vocabindex_menu_paths('admin_paths')]=array(
		'title'=>'Paths',
		'type'=>MENU_DEFAULT_LOCAL_TASK,
		'file'=>'vocabindex.admin.inc',
	);
	
	$items[_vocabindex_menu_paths('admin_settings')]=array(
		'title'=>'Settings',
		'description'=>'General settings.',
		'page callback'=>'drupal_get_form',
		'page arguments'=>array('vocabindex_admin'),
		'type'=>MENU_LOCAL_TASK,
		'file'=>'vocabindex.admin.inc',
	);
	
	$items[_vocabindex_menu_paths('admin_refresh')]=array(
		'title'=>'Refresh',
		'description'=>'Refresh all the index pages.',
		'page callback'=>'vocabindex_page_admin_refresh',
		'type'=>MENU_LOCAL_TASK,
		'file'=>'vocabindex.admin.inc',
	);
	
	$result=db_query("SELECT vi.path, v.name, v.description FROM {vocabindex} vi LEFT JOIN	{vocabulary} v ON vi.vid=v.vid");
	while($row=db_fetch_object($result))
	{
		//Menu callbacks for every vocabindex page
		$items[$row->path]=array(
			'title'=>$row->name,
			'description'=>$row->description,
			'access arguments'=>array('view vocabulary index pages'),
			'page callback'=>'vocabindex_view_page',
			'page arguments'=>array($row->path),
			'type'=>MENU_SUGGESTED_ITEM,
			'file'=>'vocabindex.view.inc',
		);
	}

	return $items;
}

/**
*Implementation of hook_theme()
*/
function vocabindex_theme()
{
	$functions['vocabindex_page']=array(
		'template'=>'vocabindex_page',
		'arguments'=>array(
			'description'=>NULL,
			'list'=>NULL,
		),
	);
	
	$functions['vocabindex_list']=array(
		'template'=>'vocabindex_list',
		'arguments'=>array(
			'list_items'=>NULL,
			'list_style'=>'threaded',
		),
	);
	
	$functions['vocabindex_list_item']=array(
		'template'=>'vocabindex_list_item',
		'arguments'=>array(
			'url'=>NULL,
			'name'=>NULL,
			'description'=>NULL,
			'zebra'=>NULL,
			'children'=>NULL,
		),
	);
	
	return $functions;
}

/**
*Implementation of hook_taxonomy()
*/
function vocabindex_taxonomy($op, $type, $array=NULL)
{
	//Include necessary files
	require_once(drupal_get_path('module', 'vocabindex').'/vocabindex.admin.inc');
	
	if($type=='vocabulary')
	{
		$vocab=$array;
		
		if($op=='update')
		{
			//Don't automatically refresh by default, as users won't expect their menu items to disappear.
			if(variable_get('vocabindex_vocab_auto_refresh', FALSE))
			{
				$path=db_result(db_query("SELECT path FROM {vocabindex} WHERE vid = %d", $vocab['vid']));
				vocabindex_create_index($vocab['vid'], $path);
			}
		}
		if($op=='delete')
		{
			vocabindex_delete_index(NULL, $vocab['vid']);
		}
		
		menu_rebuild();
	}
}