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+;;; sx-networks.el --- user network information  -*- lexical-binding: t; -*-
+
+;; Copyright (C) 2014  Sean Allred
+
+;; Author: Sean Allred <code@seanallred.com>
+
+;; This program is free software; you can redistribute it and/or modify
+;; it under the terms of the GNU General Public License as published by
+;; the Free Software Foundation, either version 3 of the License, or
+;; (at your option) any later version.
+
+;; This program is distributed in the hope that it will be useful,
+;; but WITHOUT ANY WARRANTY; without even the implied warranty of
+;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+;; GNU General Public License for more details.
+
+;; You should have received a copy of the GNU General Public License
+;; along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+;;; Commentary:
+
+;;
+
+;;; Code:
+
+(require 'sx-method)
+(require 'sx-cache)
+(require 'sx-site)
+
+(defun sx-network--get-associated ()
+    (sx-cache-get
+     'network-user
+     '(sx-network--update)))
+
+(defun sx-network--update ()
+  "Update user information."
+  (setq sx-network--user-information
+        (sx-method-call "me/associated"
+                        '((types . "main_site;meta_site"))
+                        'nil
+                        'warn))
+  (setq sx-network--user-sites (sx-network--map-site-url-to-site-api))
+  (sx-cache-set 'network-user sx-network--user-information))
+
+(defun sx-network--ensure-user ()
+  "Ensure user-cache is available.
+
+This should be called during initialization."
+  (cond
+   ((not sx-network--user-information)
+    (or (sx-network--get-associated)
+        (sx-network--update)))
+   ((not sx-network--user-sites)
+    (sx-network--map-site-url-to-site-api))))
+
+(defun sx-network--map-site-url-to-site-api ()
+  "Convert `me/associations' to a set of `api_site_parameter's.
+
+`me/associations' does not return `api_site_parameter' so cannot
+be directly used to retrieve content per site.  This creates a
+list of sites the user is active on."
+  (let ((sites-info (mapcar (lambda (x)
+                              (cons (cdr (assoc 'site_url x))
+                                    (cdr (assoc 'api_site_parameter
+                                                x))))
+                            (sx-site--get-site-list))))
+    (mapcar '(lambda (loc)
+               (let ((u-site (cdr (assoc 'site_url loc))))
+                 (when (member u-site (mapcar 'car sites-info))
+                   (cdr (assoc u-site sites-info)))))
+            (sx-network--user-information))))
+
+(defvar sx-network--user-information nil
+  "User information for the various sites.")
+
+(defvar sx-network--user-sites nil
+  "List of sites where user already has an account.")
+
+(provide sx-networks)
+;;; sx-networks.el ends here
+
+;; Local Variables:
+;; indent-tabs-mode: nil
+;; End: