implemented exhibition metadata storage

Assets/RothenburgAR/Scripts/Updater/ApiInfo.cs

@@ -31,22 +31,22 @@ namespace RothenburgAR.Updater
     public class VersioncheckAnswer
     {
         public List<string> languages { get; set; }
-        public List<Version> data { get; set; }
+        public List<ExhibitionVersion> data { get; set; }
     }
 
     [Serializable]
-    public class Version
+    public class ExhibitionVersion
     {
         public string id { get; set; }
-        public VersionInfo meta;
+        public VersionInfo meta { get; set; }
-        //VersionInfo tracker;
+        public VersionInfo tracker { get; set; }
     }
 
     [Serializable]
     public class VersionInfo
     {
-        public VersionStatus status;
+        public VersionStatus status { get; set; }
-        public string updateUrl;
+        public string updateUrl { get; set; }
     }
 
     public enum VersionStatus

Assets/RothenburgAR/Scripts/Updater/UpdaterBehaviour.cs

@@ -1,8 +1,11 @@
 using System.Collections;
 using System.Collections.Generic;
+using System.Linq;
 using UnityEngine;
 using System;
 using Newtonsoft.Json;
+using RothenburgAR.Common;
+using System.IO;
 
 namespace RothenburgAR.Updater
 {
@@ -12,11 +15,7 @@ namespace RothenburgAR.Updater
 
         void Start()
         {
-            /*	
+            /*	TODO: allg. fragen
-                zum app-start einmal prüfen, wenn neues da ist anzeigen und evtl. runterladen (wenn nicht getaktete verbindung)
-                    neue startszene, die guckt und updatet und dann zur mainScene weiterleitet
-                    auf getaktete verbindung prüfen (Application.internetReachability)
-
                 punkt zum eintragen der credentials? user will ja nur seine/nur bestimmte exhibitions haben schätz ich
                 oder beim update auswählen lassen, welche kommen sollen
             */
@@ -46,9 +45,9 @@ namespace RothenburgAR.Updater
                 Debug.Log(httpHandler.download.text);
 
                 //versionAnswer = JsonConvert.DeserializeObject<VersioncheckAnswer>(httpHandler.download.text);
-                VersionAnswer = JsonConvert.DeserializeObject<VersioncheckAnswer>(@"{""data"":[{""id"":""a"",""meta"":{""status"":""ok"",""updateUrl"":""https://lambdalike.pa.kaim.network/meta/006e164c-5e31-4ddf-adf5-df7016c8b3a7/de""}},{""id"":""b"",""meta"":{""status"":""updated"",""updateUrl"":""https://lambdalike.pa.kaim.network/meta/006e164c-5e31-4ddf-adf5-df7016c8b3a7/de""}}]}");
+                VersionAnswer = JsonConvert.DeserializeObject<VersioncheckAnswer>(@"{""data"":[{""id"":""a"",""meta"":{""status"":""ok"",""updateUrl"":""https://lambdalike.pa.kaim.network/meta/006e164c-5e31-4ddf-adf5-df7016c8b3a7/de""},""tracker"":""meta"":{""status"":""ok"",""updateUrl"":""https://lambdalike.pa.kaim.network/meta/006e164c-5e31-4ddf-adf5-df7016c8b3a7/de""}},{""id"":""b"",""meta"":{""status"":""updated"",""updateUrl"":""https://lambdalike.pa.kaim.network/meta/006e164c-5e31-4ddf-adf5-df7016c8b3a7/de""},""tracker"":""meta"":{""status"":""ok"",""updateUrl"":""https://lambdalike.pa.kaim.network/meta/006e164c-5e31-4ddf-adf5-df7016c8b3a7/de""}}]}");
 
-                if (VersionAnswer.data.TrueForAll(d => d.meta.status == VersionStatus.ok))
+                if (VersionAnswer.data.TrueForAll(d => d.meta.status == VersionStatus.ok && d.tracker.status == VersionStatus.ok))
                 {
                     // no updates required, continue to app
                     LoadMainScene();
@@ -68,15 +67,74 @@ namespace RothenburgAR.Updater
 
         private void TriggerUpdate()
         {
-            // TODO instantiate component that performs the update?
+            // TODO create centralized network error feedback hub thing
-            /* trigger tiered updates in order
+            /*
-             *      languages           //no http
+             * dir structure:
-             *      data                //no http
+             *     data
-             *          tracker         //1 request
+             *         exhibitions
-             *          meta            //1 request
+             *             id
-             *              poi         //n requests
+             *                 tracker.dat
-             *                  media   //n requests
+             *                 tracker.xml
+             *                 de
+             *                     meta.json
+             *                 en
+             *                     meta.json
+             *             id
+             *                 ...
+             *         poi
+             *             ...
+             *         media
+             *             ...
              */
+
+            //TODO write languages to file the app can read
+
+            var updatedMeta = VersionAnswer.data.Where(d => d.meta.status == VersionStatus.updated).ToList();
+            var updatedTracker = VersionAnswer.data.Where(d => d.tracker.status == VersionStatus.updated).ToList();
+            updatedMeta.Union(updatedTracker).ToList().ForEach(updatedExhibition =>
+            {
+                // create exhibition directories
+                var path = Path.Combine(PathHelper.ExhibitionPath, updatedExhibition.id);
+                if (!Directory.Exists(path))
+                {
+                    Directory.CreateDirectory(path);
+                }
+            });
+
+            updatedMeta.ForEach(d => UpdateMeta(d));
+            updatedTracker.ForEach(d => UpdateTracker(d));
+
+            var deletedMeta = VersionAnswer.data.Where(d => d.meta.status == VersionStatus.deleted).ToList();
+            var deletedTracker = VersionAnswer.data.Where(d => d.tracker.status == VersionStatus.deleted).ToList();
+            //TODO figure out if you can delete a tracker but not the meta (or vice versa)
+        }
+
+        private void UpdateMeta(ExhibitionVersion exhibition)
+        {
+            foreach (var lang in VersionAnswer.languages)
+            {
+                var path = Path.Combine(PathHelper.ExhibitionPath, lang);
+                var url = ApiInfo.ExhibitionEndpoint.Replace("{lang}", lang).Replace("{id}", exhibition.id);
+                var http = new HttpRequest(url, HttpVerb.GET).send();
+                http.operation.completed += ar =>
+                {
+                    //TODO check for network errors/timeouts (and find out if operation.completed() is the right place for that)
+                    if (!Directory.Exists(path))
+                    {
+                        Directory.CreateDirectory(path);
+                    }
+
+                    File.WriteAllText(Path.Combine(path, "meta.json"), http.download.text, System.Text.Encoding.UTF8);
+
+                    //TODO parse json into object and download poi data
+                };
+            }
+
+        }
+
+        private void UpdateTracker(ExhibitionVersion exhibition)
+        {
+            throw new NotImplementedException();
         }
 
         private static void LoadMainScene()