Add posts with surveys support

lib/helpers/posts_helper.dart

@@ -2,6 +2,7 @@ import 'package:comunic/enums/post_kind.dart';
 import 'package:comunic/enums/post_visibility_level.dart';
 import 'package:comunic/enums/user_access_levels.dart';
 import 'package:comunic/helpers/comments_helper.dart';
+import 'package:comunic/helpers/survey_helper.dart';
 import 'package:comunic/lists/comments_list.dart';
 import 'package:comunic/lists/posts_list.dart';
 import 'package:comunic/models/api_request.dart';
@@ -40,14 +41,11 @@ class PostsHelper {
   /// Get the list of latest posts. Return the list of posts or null in case of
   /// failure
   Future<PostsList> getLatest({int from = 0}) async {
-    final response = await APIRequest(
-      uri: "posts/get_latest",
-      needLogin: true,
-      args: {
-        "include_groups": true.toString(),
-        "startFrom": from.toString(),
-      }
-    ).exec();
+    final response =
+        await APIRequest(uri: "posts/get_latest", needLogin: true, args: {
+      "include_groups": true.toString(),
+      "startFrom": from.toString(),
+    }).exec();
 
     if (response.code != 200) return null;
 
@@ -63,13 +61,10 @@ class PostsHelper {
   /// Get the list of posts of a user
   Future<PostsList> getUserPosts(int userID, {int from = 0}) async {
     final response = await APIRequest(
-        uri: "posts/get_user",
-        needLogin: true,
-        args: {
-          "userID": userID.toString(),
-          "startFrom": from.toString()
-        }
-    ).exec();
+            uri: "posts/get_user",
+            needLogin: true,
+            args: {"userID": userID.toString(), "startFrom": from.toString()})
+        .exec();
 
     if (response.code != 200) return null;
 
@@ -102,7 +97,8 @@ class PostsHelper {
       needLogin: true,
       args: {
         "postID": id.toString(),
-        "new_level": _APIPostsVisibilityLevelMap.map((k, v) => MapEntry(v, k))[level]
+        "new_level":
+            _APIPostsVisibilityLevelMap.map((k, v) => MapEntry(v, k))[level]
       },
     ).exec())
         .isOK;
@@ -120,6 +116,8 @@ class PostsHelper {
 
   /// Turn an API entry into a [Post] object
   Post _apiToPost(Map<String, dynamic> map) {
+    final postKind = _APIPostsKindsMap[map["kind"]];
+
     // Parse comments
     CommentsList comments;
     if (map["comments"] != null) {
@@ -128,28 +126,32 @@ class PostsHelper {
           .forEach((v) => comments.add(CommentsHelper.apiToComment(v)));
     }
 
+    final survey = postKind == PostKind.SURVEY
+        ? SurveyHelper.apiToSurvey(map["data_survey"])
+        : null;
+
     return Post(
-      id: map["ID"],
-      userID: map["userID"],
-      userPageID: map["user_page_id"],
-      groupID: map["group_id"],
-      timeSent: map["post_time"],
-      content: map["content"],
-      visibilityLevel: _APIPostsVisibilityLevelMap[map["visibility_level"]],
-      kind: _APIPostsKindsMap[map["kind"]],
-      fileSize: map["file_size"],
-      fileType: map["file_type"],
-      filePath: map["file_path"],
-      fileURL: map["file_path_url"],
-      timeEnd: map["time_end"],
-      linkURL: map["link_url"],
-      linkTitle: map["link_title"],
-      linkDescription: map["link_description"],
-      linkImage: map["link_image"],
-      likes: map["likes"],
-      userLike: map["userlike"],
-      access: _APIUserAccessMap[map["user_access"]],
-      comments: comments,
-    );
+        id: map["ID"],
+        userID: map["userID"],
+        userPageID: map["user_page_id"],
+        groupID: map["group_id"],
+        timeSent: map["post_time"],
+        content: map["content"],
+        visibilityLevel: _APIPostsVisibilityLevelMap[map["visibility_level"]],
+        kind: postKind,
+        fileSize: map["file_size"],
+        fileType: map["file_type"],
+        filePath: map["file_path"],
+        fileURL: map["file_path_url"],
+        timeEnd: map["time_end"],
+        linkURL: map["link_url"],
+        linkTitle: map["link_title"],
+        linkDescription: map["link_description"],
+        linkImage: map["link_image"],
+        likes: map["likes"],
+        userLike: map["userlike"],
+        access: _APIUserAccessMap[map["user_access"]],
+        comments: comments,
+        survey: survey);
   }
 }

lib/helpers/survey_helper.dart

@@ -0,0 +1,55 @@
+import 'package:comunic/models/api_request.dart';
+import 'package:comunic/models/survey.dart';
+import 'package:comunic/models/survey_choice.dart';
+import 'package:meta/meta.dart';
+
+/// Survey helper
+///
+/// @author Pierre HUBERT
+
+class SurveyHelper {
+  /// Cancel the response of a user to a survey
+  Future<bool> cancelResponse(Survey survey) async {
+    return (await APIRequest(
+            uri: "surveys/cancel_response",
+            needLogin: true,
+            args: {"postID": survey.postID.toString()}).exec())
+        .isOK;
+  }
+
+  /// Send the response of a user to a survey
+  Future<bool> respondToSurvey(
+      {@required Survey survey, @required SurveyChoice choice}) async {
+    assert(survey != null);
+    assert(choice != null);
+
+    return (await APIRequest(
+      uri: "surveys/send_response",
+      needLogin: true,
+      args: {
+        "postID": survey.postID.toString(),
+        "choiceID": choice.id.toString(),
+      },
+    ).exec())
+        .isOK;
+  }
+
+  /// Turn an API entry into a [Survey] object
+  static Survey apiToSurvey(Map<String, dynamic> map) {
+    // Parse survey responses
+    Set<SurveyChoice> choices = Set();
+
+    map["choices"].forEach((k, e) => choices.add(SurveyChoice(
+        id: e["choiceID"], name: e["name"], responses: e["responses"])));
+
+    return Survey(
+      id: map["ID"],
+      userID: map["userID"],
+      postID: map["postID"],
+      creationTime: map["creation_time"],
+      question: map["question"],
+      userChoice: map["user_choice"],
+      choices: choices,
+    );
+  }
+}