<?php
// $Id$

/*
 * Help
 */
function isedoc_help($path, $arg) {
	$output = '';
	switch ($path) {
		case "admin/help#isedoc":
		$output = '<p>'.t("Import/Export books").'</p>';
		break;
	}
	return $output;
} // function isedoc_help

/**
 * Implementation of hook_perm().
 */
function isedoc_perm() {
  return array('admin isedoc', 'query isedoc');
}


/*
 * Block
 */
function isedoc_block($op = 'list', $delta = 0) {
	if ($op == 'list') {
		$block[0]["info"] = t('ISE docs');
		return $block;
	} else if ($op == 'view') {
		$block_content = '';
		$links = array();
		if (user_access('import isedoc')) {
			if (module_exists('isedoc_import')) {
			  $links[] = l('Import into...','admin/content/isedoc_import');
			} else {
			  $links[] = l('Enabled Import ...','admin/build/modules');
			}
		}
		if (user_access('export isedoc')) {
			if (module_exists('isedoc_export')) {
			  $links[] = l('Export from ...','admin/content/isedoc_export');
			} else {
			  $links[] = l('Enabled Export ...','admin/build/modules');
			}
		}
		$n = menu_get_object();
		if ($n) {
		  $links[] = l('What links here','node/'.$n->nid.'/whatlinkshere');

                  $l_url = url("node/".$n->nid, array('absolute' => True));
		  $links[] = l('Wikipedia backlinks', "http://en.wikipedia.org/w/index.php?title=Special:LinkSearch&target=" . rawurlencode($l_url));
		  $links[] = l('Google backlinks', "http://www.google.com/search?q=" . rawurlencode ('link:' . $l_url));
		}

		if (user_access('admin isedoc')) {
			$links[] = l('Update books','isedoc/update/_');
		}
		if (user_access('query isedoc')) {
			$links[] = l('Check/report','isedoc/report/doc/_');
		}
		if (isedoc_user_can_edit()) {
			$links[] = l('List Templates','isedoc/templates');
		}

		$block_content .= theme('item_list', $links);
		if ($block_content == '') {
			return;
		}
		$block['subject'] = 'Doc Control';
		$block['content'] = $block_content;
		return $block;
	}
} // function isedoc_block

/**
 * Implementation of hook_nodeapi().
 */
function isedoc_nodeapi(&$node, $op, $form = NULL, $a4 = NULL) {
  switch ($op) {
    case 'prepare':
      if ($node->type == 'doc' and is_callable(array($node, 'field_uuid'), TRUE)) {
        $l_uuid = $node->field_uuid[0]['value'];
        //drupal_set_message("uuid=[$l_uuid]");
        if ($l_uuid === NULL) {
          $l_uuid = isedoc_uuid();
          $node->field_uuid[0]['value'] = $l_uuid;
          //drupal_set_message(t("Set the UUID value to [$l_uuid]"));
        }
      }
      break;
  }
}

/*
 * Menu
 */

function isedoc_menu() {
  $items = array();
  $items['isedoc/update/%'] = array(
    'title' => t('Update documentation pages'),
    'page callback' => 'isedoc_update_pages',
    'page arguments' => array(2,3),
    'access arguments' => array('admin isedoc'),
    'file' => 'isedoc.update.inc',
    'type' => MENU_NORMAL_ITEM,
  );
  $items['isedoc/report/%/%'] = array(
    'title' => t('Check documentation pages and report'),
    'page callback' => 'isedoc_report',
    'page arguments' => array(2,3,4),
    'access arguments' => array('query isedoc'),
    'file' => 'isedoc.report.inc',
    'type' => MENU_NORMAL_ITEM,
  );
  $items['admin/settings/isedoc'] = array(
    'title' => 'IseDoc',
    'description' => 'ISE Documentation settings.',
    'page callback' => 'drupal_get_form',
    'page arguments' => array('isedoc_admin_settings'),
    'access arguments' => array('administer site configuration'),
    'type' => MENU_NORMAL_ITEM,
    'file' => 'isedoc.admin.inc',
  );
  $items['admin/settings/isedoc/nodes'] = array(
    'title' => 'General',
    'description' => 'General Settings.',
    'page callback' => 'drupal_get_form',
    'page arguments' => array('isedoc_admin_settings'),
    'access arguments' => array('administer site configuration'),
    'type' => MENU_DEFAULT_LOCAL_TASK,
    'file' => 'isedoc.admin.inc',
    'weight' => '-10',
  );  
  $items['node/%node/whatlinkshere'] = array(
    'title' => t('References'),
    'page callback' => 'isedoc_whatlinkshere',
    'page arguments' => array(1),
    'access arguments' => array('access content'),
    'file' => 'isedoc.whatlinkshere.inc',
    'weight' => 1,
    'type' => MENU_LOCAL_TASK,
  );
  $items['isedoc/templates'] = array(
    'title' => t('Templates'),
    'page callback' => 'isedoc_list_templates',
    'page arguments' => array(2),
    'access arguments' => array('edit any doc content'),
    'file' => 'isedoc.queries.inc',
    'weight' => 1,
    'type' => MENU_NORMAL_ITEM,
  );
  $items['isedoc/static/%'] = array(
    'title' => t('Redirect to static content'),
    'page callback' => 'isedoc_static_query',
    'page arguments' => array(1),
    'access arguments' => array('access content'),
    'file' => 'isedoc.static.inc',
    'type' => MENU_CALLBACK,
  );

  $items['isedoc/redirect/%/%'] = array(
    'title' => t('Redirect isedoc'),
    'page callback' => 'isedoc_redirect_query',
    'page arguments' => array(2,3,4),
    'access arguments' => array('access content'),
    'file' => 'isedoc.redirect_query.inc',
    'type' => MENU_CALLBACK,
  );
  $items['isedoc/uuid/%'] = array(
    'title' => t('Redirect using UUID'),
    'page callback' => 'isedoc_uuid_query',
    'page arguments' => array(2,3),
    'access arguments' => array('access content'),
    'file' => 'isedoc.uuid_query.inc',
    'type' => MENU_CALLBACK,
  );
  $items['isedoc/eis/%'] = array(
    'title' => t('Redirect using EIS entry'),
    'page callback' => 'isedoc_eis_query',
    'page arguments' => array(2),
    'access arguments' => array('access content'),
    'file' => 'isedoc.eis_query.inc',
    'type' => MENU_CALLBACK,
  );

  return $items;
}

/*
 * Lib
 */

function isedoc_uuid($prefix = '') {
	$chars = uniqid(md5(rand()));
	$uuid  = substr($chars,0,8) . '-';
	$uuid .= substr($chars,8,4) . '-';
	$uuid .= substr($chars,12,4) . '-';
	$uuid .= substr($chars,16,4) . '-';
	$uuid .= substr($chars,20,12);
	return $prefix . $uuid;
}

function isedoc_user_can_edit($type='doc') {
	return user_access('edit any '.$type.' content');
}

?>