room, user, ddg autocomplete providers (wip)

src/autocomplete/AutocompleteProvider.js

@@ -1,3 +1,5 @@
 export default class AutocompleteProvider {
-
+    getName(): string {
+        return 'Default Provider';
+    }
 }

src/autocomplete/Autocompleter.js

@@ -1,7 +1,20 @@
 import CommandProvider from './CommandProvider';
+import DuckDuckGoProvider from './DuckDuckGoProvider';
+import RoomProvider from './RoomProvider';
+import UserProvider from './UserProvider';
 
-const COMPLETERS = [CommandProvider].map(completer => new completer());
+const PROVIDERS = [
+    CommandProvider,
+    DuckDuckGoProvider,
+    RoomProvider,
+    UserProvider
+].map(completer => new completer());
 
 export function getCompletions(query: String) {
-    return COMPLETERS.map(completer => completer.getCompletions(query));
+    return PROVIDERS.map(provider => {
+        return {
+            completions: provider.getCompletions(query),
+            provider
+        };
+    });
 }

src/autocomplete/CommandProvider.js

@@ -62,4 +62,8 @@ export default class CommandProvider extends AutocompleteProvider {
         }
         return Q.when(completions);
     }
+
+    getName() {
+        return 'Commands';
+    }
 }

src/autocomplete/DuckDuckGoProvider.js

@@ -0,0 +1,35 @@
+import AutocompleteProvider from './AutocompleteProvider';
+import Q from 'q';
+import 'whatwg-fetch';
+
+const DDG_REGEX = /\/ddg\w+(.+)$/;
+const REFERER = 'vector';
+
+export default class DuckDuckGoProvider extends AutocompleteProvider {
+    static getQueryUri(query: String) {
+        return `http://api.duckduckgo.com/?q=${encodeURIComponent(query)}&format=json&t=${encodeURIComponent(REFERER)}`;
+    }
+
+    getCompletions(query: String) {
+        if(!query)
+            return Q.when([]);
+
+        let promise = Q.defer();
+        fetch(DuckDuckGoProvider.getQueryUri(query), {
+            method: 'GET'
+        }).then(response => {
+            let results = response.Results.map(result => {
+                return {
+                    title: result.Text,
+                    description: result.Result
+                };
+            });
+            promise.resolve(results);
+        });
+        return promise;
+    }
+
+    getName() {
+        return 'Results from DuckDuckGo';
+    }
+}

src/autocomplete/RoomProvider.js

@@ -0,0 +1,31 @@
+import AutocompleteProvider from './AutocompleteProvider';
+import Q from 'q';
+import MatrixClientPeg from '../MatrixClientPeg';
+
+const ROOM_REGEX = /(?=#)[^\s]*/g;
+
+export default class RoomProvider extends AutocompleteProvider {
+    constructor() {
+        super();
+    }
+
+    getCompletions(query: String) {
+        let client = MatrixClientPeg.get();
+        let completions = [];
+        const matches = query.match(ROOM_REGEX);
+        if(!!matches) {
+            const command = matches[0];
+            completions = client.getRooms().map(room => {
+                return {
+                    title: room.name,
+                    subtitle: room.roomId
+                };
+            });
+        }
+        return Q.when(completions);
+    }
+
+    getName() {
+        return 'Rooms';
+    }
+}

src/autocomplete/UserProvider.js

@@ -0,0 +1,31 @@
+import AutocompleteProvider from './AutocompleteProvider';
+import Q from 'q';
+import MatrixClientPeg from '../MatrixClientPeg';
+
+const ROOM_REGEX = /@[^\s]*/g;
+
+export default class UserProvider extends AutocompleteProvider {
+    constructor() {
+        super();
+    }
+
+    getCompletions(query: String) {
+        let client = MatrixClientPeg.get();
+        let completions = [];
+        const matches = query.match(ROOM_REGEX);
+        if(!!matches) {
+            const command = matches[0];
+            completions = client.getUsers().map(user => {
+                return {
+                    title: user.displayName,
+                    description: user.userId
+                };
+            });
+        }
+        return Q.when(completions);
+    }
+
+    getName() {
+        return 'Users';
+    }
+}