From d362c0faab256494b8244e5e5abcc608116cbb91 Mon Sep 17 00:00:00 2001
From: Pierre HUBERT <pierre.git@communiquons.org>
Date: Sat, 21 Mar 2020 09:15:21 +0100
Subject: [PATCH] Can get the list of post targets of a user

---
 src/controllers/PostsController.ts | 16 ++++++++++++
 src/controllers/Routes.ts          |  2 ++
 src/helpers/FriendsHelper.ts       | 19 ++++++++++++++
 src/helpers/GroupsHelper.ts        | 40 ++++++++++++++++++++++++++++++
 4 files changed, 77 insertions(+)

diff --git a/src/controllers/PostsController.ts b/src/controllers/PostsController.ts
index 0e481c4..48acae9 100644
--- a/src/controllers/PostsController.ts
+++ b/src/controllers/PostsController.ts
@@ -18,6 +18,7 @@ import { pathUserData } from "../utils/UserDataUtils";
 import { statSync } from "fs";
 import { lookup } from "mime-types";
 import { NewSurvey } from "../entities/NewSurvey";
+import { FriendsHelper } from "../helpers/FriendsHelper";
 
 /**
  * Posts controller
@@ -349,6 +350,21 @@ export class PostsController {
 		h.success();
 	}
 
+	/**
+	 * Get the lists of targets where the current user can create posts
+	 * 
+	 * @param h Request handler
+	 */
+	public static async GetTargets(h: RequestHandler) {
+		const friends = await FriendsHelper.GetListThatAllowsPostsFromUser(h.getUserId());
+		const groups = await GroupsHelper.GetListUserWhereCanCreatePosts(h.getUserId());
+
+		h.send({
+			friends: friends,
+			groups: groups
+		});
+	}
+
 	/**
 	 * Send multiple posts to the API
 	 * 
diff --git a/src/controllers/Routes.ts b/src/controllers/Routes.ts
index cb06747..14c5900 100644
--- a/src/controllers/Routes.ts
+++ b/src/controllers/Routes.ts
@@ -200,6 +200,8 @@ export const Routes : Route[] = [
 
 	{path: "/posts/delete", cb: (h) => PostsController.DeletePost(h)},
 
+	{path: "/posts/getAvailableTargets", cb: (h) => PostsController.GetTargets(h)},
+
 
 
 	// Notifications controller
diff --git a/src/helpers/FriendsHelper.ts b/src/helpers/FriendsHelper.ts
index 5ff7192..046bf75 100644
--- a/src/helpers/FriendsHelper.ts
+++ b/src/helpers/FriendsHelper.ts
@@ -44,6 +44,25 @@ export class FriendsHelper {
 		return results.map((r) => this.DbToFriend(r));
 	}
 
+	/**
+	 * Get the list of friends of a given user who allows
+	 * him to create post on their pages
+	 * 
+	 * @param userID ID of the user making the request
+	 */
+	public static async GetListThatAllowsPostsFromUser(userID: number) : Promise<Array<number>> {
+		const list = await DatabaseHelper.Query({
+			table: FRIENDS_TABLE,
+			where: {
+				autoriser_post_page: 1,
+				ID_amis: userID
+			},
+			fields: ["ID_personne as user_id"]
+		});
+
+		return list.map((e) => e.user_id);
+	}
+
 	/**
 	 * Get information about a single membership
 	 * 
diff --git a/src/helpers/GroupsHelper.ts b/src/helpers/GroupsHelper.ts
index 9a0f7e0..849e222 100644
--- a/src/helpers/GroupsHelper.ts
+++ b/src/helpers/GroupsHelper.ts
@@ -83,6 +83,46 @@ export class GroupsHelper {
 		return list.map(e => e.groups_id);
 	}
 
+	/**
+	 * Get the list of gruops of a user where the users can create
+	 * posts
+	 * 
+	 * @param userID The ID of the target user
+	 */
+	public static async GetListUserWhereCanCreatePosts(userID: number) : Promise<Array<number>> {
+		const list = await DatabaseHelper.Query({
+			// Members table
+			table: GROUPS_MEMBERS_TABLE,
+			tableAlias: "m",
+
+			// Groups liist table
+			joins: [
+				{
+					table: GROUPS_LIST_TABLE,
+					tableAlias: "g",
+					condition: "m.groups_id = g.id"
+				}
+			],
+
+			where: {
+				user_id: userID
+			},
+
+			customWhere: "level = ? OR level = ? OR (level = ? AND posts_level = ?)",
+			customWhereArgs: [
+				GroupMembershipLevels.ADMINISTRATOR.toString(),
+				GroupMembershipLevels.MODERATOR.toString(),
+
+				GroupMembershipLevels.MEMBER.toString(),
+				GroupPostsCreationLevel.POSTS_LEVEL_ALL_MEMBERS.toString()
+			],
+
+			fields: ["g.id"]
+		});
+
+		return list.map((e) => e.id);
+	}
+
 	/**
 	 * Get information about a group
 	 *