no more omit

src/client/js.js

@@ -0,0 +1,107 @@
+class DB {
+    constructor() {
+        if (typeof(localStorage) === "undefined") {
+            throw new Error('Hmmm... no "localStorage" support');
+        }
+    }
+
+    get(key) {
+        b = localStorage.getItem(key);
+        if (b) {
+            b = JSON.parse(b);
+        } else {
+            b = null;
+        }
+        return b
+    }
+
+    set(key, value) {
+        b = JSON.stringify(value);
+        localStorage.setItem(key, b);
+    }
+
+    del(key) {
+        localStorage.removeItem(key);
+    }
+}
+
+class Requests {
+    put(remote, body, callback) {
+        this.http("put", remote, callback, body);
+    }
+
+    post(remote, body, callback) {
+        this.http("post", remote, callback, body);
+    }
+
+    get(remote, callback) {
+        this.http("get", remote, callback, null);
+    }
+
+    http(method, remote, callback, body) {
+       var xmlhttp = new XMLHttpRequest();
+       xmlhttp.onreadystatechange = function() {
+          if (xmlhttp.readyState == XMLHttpRequest.DONE) {
+             callback(xmlhttp.responseText, xmlhttp.status);
+          }
+       };
+       xmlhttp.open(method, remote, true);
+       if (typeof body == "undefined") {
+          body = null;
+       }
+       xmlhttp.send(body);
+    }
+}
+
+class Games {
+    constructor() {
+        this.db = new DB();
+        this.requests = new Requests();
+    }
+
+    list(cb) {
+        this.requests.get("/api/games", (text) => {
+            var list = JSON.parse(text);
+            cb(list);
+        });
+    }
+
+    get(id, cb) {
+        this.requests.get("/api/games/"+id, (text, status) => {
+            if (status != 200) {
+                throw new Error("bad status getting game: "+status+": "+text);
+            }
+            var game = JSON.parse(text);
+            cb(game);
+        });
+    }
+
+    create(id, cb) {
+        this.requests.post("/api/games/"+id, null, (text, status) => {
+            if (status != 200) {
+                throw new Error("bad status creating game: "+status+": "+text);
+            }
+            var game = JSON.parse(text);
+            cb(game);
+        });
+    }
+
+    update(id, game, cb) {
+        this.requests.put("/api/games/"+id, JSON.stringify(game), (text, status) => {
+            if (status != 200) {
+                throw new Error("bad status updating game: "+status+": "+text);
+            }
+            var game2 = JSON.parse(text);
+            cb(game2);
+        });
+    }
+}
+
+games = new Games()
+games.create("id", console.log);
+games.list((ids) => {
+    console.log(ids);
+    ids.forEach((id) => {
+        games.get(id, console.log);
+    });
+});