<?php

include '../../include/boot.php';
include '../../include/authenticate.php';

// generate JSON data to populate bar

$id = getval('id', '');

// Use id to work out search string for link and path to data requested e.g. to get field id for node expansion
$target_search = array();
$fc_parent = 0;
$parent_nodes = array();
$browse_field = 0;

$browse_elements = explode("-", $id);
$bcount = count($browse_elements);
$n = 0;
for ($n = 0; $n < $bcount; $n++) {
    $browseparts = explode(":", $browse_elements[$n]);
    $type = $browseparts[0];
    $browseid = isset($browseparts[1]) ? $browseparts[1] : 0;
    switch ($type) {
        case "RT":
            $target_search["restypes"] =  $browseid;
            $target_search["archive"] =  "";
            break;

        case "F":
            $browse_field = $browseid;
            break;

        case "N":
            $parent_nodes[] = $browseid;
            break;

        case "FC":
            if ($browseid != "") {
                $fc_parent = $browseid;
            }
            break;
    }

    if ($n == $bcount - 1) {
        // Last id - this decided what is requested
        $returntype =  $type;
        $returnid   = $browseid;
    }
}

// Generate data to return
$return_items  = array();
$n = 0;
switch ($returntype) {
    case "R":
        // Add resource types
        $restypes = get_resource_types();

        if (checkperm("a")) {
            // Add 'create new' option
            $return_items[$n] = array();
            $return_items[$n]["id"] = $id . "-RT:new";
            $return_items[$n]["name"] = $lang["resource_type_new"];
            $return_items[$n]["class"] = "New";
            $return_items[$n]["expandable"] = "false";
            $tgtparams = array();
            $tgtparams["type"]  = "resource_type";
            $tgtparams["noreload"] = "true";
            $tgturl = generateURL($baseurl_short . "pages/ajax/create_new.php", $tgtparams);
            $return_items[$n]["link"] = $tgturl;
            $return_items[$n]["modal"] = true;
            $n++;
        }

        foreach ($restypes as $restype) {
            if (!in_array($restype['ref'], $hide_resource_types)) {
                // Create link based on parent and current restype
                $return_items[$n] = array();
                $return_items[$n]["id"] = $id . "-RT:" . $restype["ref"];
                $return_items[$n]["name"] = escape(i18n_get_translated($restype["name"]));
                $return_items[$n]["class"] = "Restype";
                $return_items[$n]["expandable"] = "true";
                $tgtparams = array();
                $tgtparams["restypes"]  = $restype["ref"];
                $tgtparams["noreload"] = "true";
                $tgtparams["search"]  = "";
                $tgturl = generateURL($baseurl_short . "pages/search.php", $tgtparams);
                $return_items[$n]["link"] = $tgturl;
                $return_items[$n]["modal"] = false;
                $n++;
            }
        }

        $return_data["success"] = true;
        $return_data["items"] = $return_items;
        break;

    case "RT":
        // Resource type - get all applicable fields

        if (checkperm("a")) {
            // Add 'create new' option
            $return_items[$n] = array();
            $return_items[$n]["id"] = $id . "-F:new";
            $return_items[$n]["name"] = $lang["resource_type_field_new"];
            $return_items[$n]["class"] = "New";
            $return_items[$n]["expandable"] = "false";
            $tgtparams = array();
            $tgtparams["restypes"]  = "new";
            $tgtparams["type"]  = "resource_type_field";
            $tgtparams["noreload"] = "true";
            $tgturl = generateURL($baseurl_short . "pages/ajax/create_new.php", $tgtparams);
            $return_items[$n]["link"] = $tgturl;
            $return_items[$n]["modal"] = true;
            $n++;
        }

        $gettypes = [0,(int)$returnid]; // add selected resource type fields
        $allfields = get_resource_type_fields($gettypes, "order_by", 'asc', '', $FIXED_LIST_FIELD_TYPES);

        foreach ($allfields as $field) {
            if ($field["browse_bar"] && metadata_field_view_access($field["ref"]) && $field["type"] != FIELD_TYPE_DYNAMIC_KEYWORDS_LIST) {
                // Create link based on parent and current restype
                $return_items[$n] = array();
                $return_items[$n]["id"] = $id . "-F:" . $field["ref"];
                $return_items[$n]["name"] = i18n_get_translated($field["title"]);
                $return_items[$n]["class"] = "Field";
                $return_items[$n]["expandable"] = "true";
                $return_items[$n]["link"] = "";
                $return_items[$n]["modal"] = false;

                $n++;
            }
        }

        $return_data["success"] = true;
        $return_data["items"] = $return_items;
        break;

    case "F":
        // Get nodes for field
        if (isset($parentnode) && $parentnode > 0) {
            $parent = $parentnode;
        } else {
            $parent = null;
        }

        if (metadata_field_view_access($returnid)) {
            $fielddata = get_resource_type_field($returnid);
            if (!$fielddata["browse_bar"] || !metadata_field_view_access($returnid) || !in_array($fielddata["type"], $FIXED_LIST_FIELD_TYPES) || $fielddata["type"] == FIELD_TYPE_DYNAMIC_KEYWORDS_LIST) {
                break;
            }

            if (checkperm("k") || checkperm('a') || ($fielddata["type"] == FIELD_TYPE_DYNAMIC_KEYWORDS_LIST && !checkperm("bdk" . $returnid))) {
                // Add 'create new' option
                $return_items[$n] = array();
                $return_items[$n]["id"] = $id . "-N:new";
                $return_items[$n]["name"] = $lang["add"];
                $return_items[$n]["class"] = "New";
                $return_items[$n]["expandable"] = "false";
                $tgtparams = array();
                $tgtparams["type"]  = "node";
                $tgtparams["field"]  = $returnid;
                $tgtparams["parent"]  = $parent;
                $tgtparams["noreload"] = "true";
                $tgturl = generateURL($baseurl_short . "pages/ajax/create_new.php", $tgtparams);
                $return_items[$n]["link"] = $tgturl;
                $return_items[$n]["modal"] = true;
                $n++;
            }

            $nodes = get_nodes($returnid, $parent, false);

            if ((bool) $fielddata['automatic_nodes_ordering']) {
                $nodes = reorder_nodes($nodes);
            }

            foreach ($nodes as $node) {
                // Create link based on parent and current restype
                $return_items[$n] = array();
                $return_items[$n]["id"] = $id . "-N:" . $node["ref"];
                $return_items[$n]["name"] = escape(i18n_get_translated($node["name"]));
                $return_items[$n]["class"] = "Node";
                $return_items[$n]["expandable"] = (is_parent_node($node["ref"])) ? "true" : "false";

                $tgtparams = array();
                $tgtparams["search"]  = NODE_TOKEN_PREFIX . $node["ref"];
                $tgtparams["noreload"] = "true";
                $tgturl = generateURL($baseurl_short . "pages/search.php", $tgtparams, $target_search);
                $return_items[$n]["link"] = $tgturl;
                $return_items[$n]["modal"] = false;
                $return_items[$n]["drop"] = true;
                $n++;
            }

            $return_data["success"] = true;
            $return_data["items"] = $return_items;
        }
        break;

    case "N":
        // Get subnodes for node
        if (metadata_field_view_access($browse_field)) {
            $fielddata = get_resource_type_field($browse_field);
            if (!$fielddata["browse_bar"] || !metadata_field_view_access($browse_field) || !in_array($fielddata["type"], $FIXED_LIST_FIELD_TYPES) || $fielddata["type"] == FIELD_TYPE_DYNAMIC_KEYWORDS_LIST) {
                break;
            }

            if (checkperm("k") || checkperm('a') || ($fielddata["type"] == FIELD_TYPE_DYNAMIC_KEYWORDS_LIST && !checkperm("bdk" . $returnid))) {
                // Add 'create new' option
                $return_items[$n] = array();
                $return_items[$n]["id"] = $id . "-N:new";
                $return_items[$n]["name"] = $lang["add"];
                $return_items[$n]["class"] = "New";
                $return_items[$n]["expandable"] = "false";
                $tgtparams = array();
                $tgtparams["type"]  = "node";
                $tgtparams["field"]  = $browse_field;
                $tgtparams["parent_nodes"]  = implode(",", $parent_nodes);
                $tgtparams["noreload"] = "true";
                $tgturl = generateURL($baseurl_short . "pages/ajax/create_new.php", $tgtparams);
                $return_items[$n]["link"] = $tgturl;
                $return_items[$n]["modal"] = true;
                $n++;
            }

            $nodes = get_nodes($browse_field, $returnid, false);

            if ((bool) $fielddata['automatic_nodes_ordering']) {
                $nodes = reorder_nodes($nodes);
            }

            foreach ($nodes as $node) {
                $return_items[$n] = array();
                $return_items[$n]["id"] = $id . "-N:" . $node["ref"];
                $return_items[$n]["name"] = escape(i18n_get_translated($node["name"]));
                $return_items[$n]["class"] = "Node";
                $return_items[$n]["expandable"] = (is_parent_node($node["ref"])) ? "true" : "false";
                $tgtparams = array();
                $tgtparams["search"]  = NODE_TOKEN_PREFIX . $node["ref"];
                $tgtparams["noreload"] = "true";
                $tgturl = generateURL($baseurl_short . "pages/search.php", $tgtparams, $target_search);
                $return_items[$n]["link"] = $tgturl;
                $return_items[$n]["modal"] = false;
                $return_items[$n]["drop"] = true;
                $n++;
            }

            $return_data["success"] = true;
            $return_data["items"] = $return_items;
        }
        break;

    // Featured collection
    case "FC":
        $fc_parent = validate_collection_parent(array("parent" => $fc_parent));
        $can_create = checkperm("h") && can_create_collections();
        // Add 'create new' option
        if ($can_create) {
            $item = array(
                "id" => "{$id}-FC:new",
                "name" => escape($lang["create"]),
                "class" => "New",
                "expandable" => "false",
                "link" => generateURL(
                    "{$baseurl_short}pages/collections_featured.php",
                    array(
                        "new" => "true",
                        "cta" => "true",
                        "parent" => $fc_parent,
                    )
                ),
                "modal" => true,
            );

            $return_items[$n] = $item;
            $n++;
        }

        $featured_collections = get_featured_collections($fc_parent, array());
        usort($featured_collections, "order_featured_collections");
        foreach ($featured_collections as $fc) {
            $is_featured_collection_category = is_featured_collection_category($fc);
            $child_collection_count = count(get_featured_collections($fc['ref'], []));
            $id_part = ($is_featured_collection_category ? "FC" : "C");
            $link = generateURL("{$baseurl_short}pages/search.php", array("search" => "!collection{$fc["ref"]}", "noreload" => "true"));
            if ($is_featured_collection_category) {
                $link = generateURL("{$baseurl_short}pages/collections_featured.php", array("parent" => $fc["ref"], "noreload" => "true"));
            }

            $item = array(
                "id" => "{$id}-{$id_part}:{$fc["ref"]}",
                "name" => escape(strip_prefix_chars(i18n_get_translated($fc["name"]), "*")),
                "class" => ($is_featured_collection_category ? "Featured" : "Col"),
                "expandable" => (($is_featured_collection_category && $child_collection_count > 0) || ($can_create && $id_part === 'FC') ? "true" : "false"), # js/browsebar_js.php requires this to be a string.
                "link" => $link,
                "modal" => false,
                "drop" => !$is_featured_collection_category,
            );

            $return_items[$n] = $item;
            $n++;
        }

        $return_data["success"] = true;
        $return_data["items"] = $return_items;
        break;

    case "C":
        // My collections
        if (can_create_collections()) {
            // Add 'create new' option
            $return_items[$n] = array();
            $return_items[$n]["id"] = $id . "-C:new";
            $return_items[$n]["name"] = $lang["createnewcollection"];
            $return_items[$n]["class"] = "New";
            $return_items[$n]["expandable"] = "false";
            $tgtparams = array();
            $tgtparams["type"]  = "collection";
            $tgtparams["noreload"] = "true";
            $tgturl = generateURL($baseurl_short . "pages/ajax/create_new.php", $tgtparams);
            $return_items[$n]["link"] = $tgturl;
            $return_items[$n]["modal"] = true;
            $n++;
        }

        $mycols = get_user_collections($userref);
        foreach ($mycols as $mycol) {
            // Create link based on parent
            $return_items[$n] = array();
            $return_items[$n]["id"] = $id . "-C:" . $mycol["ref"];
            $return_items[$n]["name"] = i18n_get_collection_name($mycol["name"]);
            $return_items[$n]["class"] = "Col";
            $return_items[$n]["expandable"] = "false";

            $tgtparams = array();
            $tgtparams["search"] = "!collection" . $mycol["ref"];
            $tgtparams["noreload"] = "true";
            $tgturl = generateURL($baseurl_short . "pages/search.php", $tgtparams);
            $return_items[$n]["link"] = $tgturl;
            $return_items[$n]["modal"] = false;
            $return_items[$n]["drop"] = true;
            $n++;
        }

        $return_data["success"] = true;
        $return_data["items"] = $return_items;
        break;

    case "WF":
        // Workflow states
        $showstates = array();
        for ($s = -2; $s <= 3; $s++) {
            if (!checkperm("z" . $s)) {
                $showstates[] = $s;
            }
        }

        foreach ($additional_archive_states as $additional_archive_state) {
            if (!checkperm("z" . $additional_archive_state)) {
                $showstates[] = $additional_archive_state;
            }
        }

        foreach ($showstates as $showstate) {
            // Create link based on parent
            $return_items[$n] = array();
            $return_items[$n]["id"] = $id . "-A:" . $showstate;
            $return_items[$n]["name"] = isset($lang["status" . $showstate]) ? $lang["status" . $showstate] : $showstate;
            $return_items[$n]["class"] = "State";
            $return_items[$n]["expandable"] = "false";

            $tgtparams = array();
            $tgtparams["search"] = "";
            $tgtparams["restypes"] = "";
            $tgtparams["archive"] = $showstate;
            $tgtparams["noreload"] = "true";
            $tgturl = generateURL($baseurl_short . "pages/search.php", $tgtparams);
            $return_items[$n]["link"] = $tgturl;
            $return_items[$n]["modal"] = false;

            // Set an icon
            $icon = $workflowicons[$showstate] ?? (WORKFLOW_DEFAULT_ICONS[$showstate] ?? WORKFLOW_DEFAULT_ICON);
            $return_items[$n]["icon"] = "<i class='fa-fw " . escape($icon)  . "'></i>";
            $n++;
        }

        $return_data["success"] = true;
        $return_data["items"] = $return_items;
        break;

    default:
        // TODO Return an error
        $return_data["success"] = false;
        $return_data["message"] = "ERROR";
        break;
}

echo json_encode($return_data);
exit();