feat: Add functionality for adding people to a tag (GSoC)

schema.graphql

@@ -50,6 +50,11 @@ enum ActionItemsOrderByInput {
   dueDate_DESC
 }
 
+input AddPeopleToUserTagInput {
+  tagId: ID!
+  userIds: [ID!]!
+}
+
 type Address {
   city: String
   countryCode: String
@@ -1058,6 +1063,7 @@ type Mutation {
   addLanguageTranslation(data: LanguageInput!): Language!
   addOrganizationCustomField(name: String!, organizationId: ID!, type: String!): OrganizationCustomField!
   addOrganizationImage(file: String!, organizationId: String!): Organization!
+  addPeopleToUserTag(input: AddPeopleToUserTagInput!): UserTag
   addPledgeToFundraisingCampaign(campaignId: ID!, pledgeId: ID!): FundraisingCampaignPledge!
   addUserCustomData(dataName: String!, dataValue: Any!, organizationId: ID!): UserCustomData!
   addUserImage(file: String!): User!
@@ -1914,6 +1920,12 @@ type UserTag {
   to.
   """
   usersAssignedTo(after: String, before: String, first: PositiveInt, last: PositiveInt): UsersConnection
+
+  """
+  A connection field to traverse a list of Users this UserTag is not assigned
+  to, to see and select among them and assign this tag.
+  """
+  usersToAssignTo(after: String, before: String, first: PositiveInt, last: PositiveInt): UsersConnection
 }
 
 """A default connection on the UserTag type."""

src/resolvers/Mutation/addPeopleToUserTag.ts

@@ -0,0 +1,202 @@
+import { Types } from "mongoose";
+import {
+  TAG_NOT_FOUND,
+  USER_DOES_NOT_BELONG_TO_TAGS_ORGANIZATION,
+  USER_NOT_AUTHORIZED_ERROR,
+  USER_NOT_FOUND_ERROR,
+} from "../../constants";
+import { errors, requestContext } from "../../libraries";
+import type { InterfaceAppUserProfile, InterfaceUser } from "../../models";
+import {
+  AppUserProfile,
+  OrganizationTagUser,
+  TagUser,
+  User,
+} from "../../models";
+import { cacheAppUserProfile } from "../../services/AppUserProfileCache/cacheAppUserProfile";
+import { findAppUserProfileCache } from "../../services/AppUserProfileCache/findAppUserProfileCache";
+import { cacheUsers } from "../../services/UserCache/cacheUser";
+import { findUserInCache } from "../../services/UserCache/findUserInCache";
+import type { MutationResolvers } from "../../types/generatedGraphQLTypes";
+
+/**
+ * This function enables an admin to assign a tag to multiple users.
+ * @param _parent - parent of current request
+ * @param args - payload provided with the request
+ * @param context - context of entire application
+ * @remarks The following checks are done:
+ * 1. If the current user exists and has a profile.
+ * 2. If the tag object exists.
+ * 3. If the current user is an admin for the organization of the tag.
+ * 4. If each user to be assigned the tag exists and belongs to the tag's organization.
+ * 5. Assign the tag only to users who do not already have it.
+ * @returns Array of users to whom the tag was assigned.
+ */
+
+export const addPeopleToUserTag: MutationResolvers["addPeopleToUserTag"] =
+  async (_parent, args, context) => {
+    let currentUser: InterfaceUser | null;
+    const userFoundInCache = await findUserInCache([context.userId]);
+    currentUser = userFoundInCache[0];
+    if (currentUser === null) {
+      currentUser = await User.findOne({
+        _id: context.userId,
+      }).lean();
+      if (currentUser !== null) {
+        await cacheUsers([currentUser]);
+      }
+    }
+
+    // Checks whether the currentUser exists.
+    if (!currentUser) {
+      throw new errors.NotFoundError(
+        requestContext.translate(USER_NOT_FOUND_ERROR.MESSAGE),
+        USER_NOT_FOUND_ERROR.CODE,
+        USER_NOT_FOUND_ERROR.PARAM,
+      );
+    }
+
+    // Get the tag object
+    const tag = await OrganizationTagUser.findOne({
+      _id: args.input.tagId,
+    }).lean();
+
+    if (!tag) {
+      throw new errors.NotFoundError(
+        requestContext.translate(TAG_NOT_FOUND.MESSAGE),
+        TAG_NOT_FOUND.CODE,
+        TAG_NOT_FOUND.PARAM,
+      );
+    }
+
+    let currentUserAppProfile: InterfaceAppUserProfile | null;
+
+    const appUserProfileFoundInCache = await findAppUserProfileCache([
+      currentUser.appUserProfileId.toString(),
+    ]);
+
+    currentUserAppProfile = appUserProfileFoundInCache[0];
+    if (currentUserAppProfile === null) {
+      currentUserAppProfile = await AppUserProfile.findOne({
+        userId: currentUser._id,
+      }).lean();
+      if (currentUserAppProfile !== null) {
+        await cacheAppUserProfile([currentUserAppProfile]);
+      }
+    }
+    if (!currentUserAppProfile) {
+      throw new errors.UnauthorizedError(
+        requestContext.translate(USER_NOT_AUTHORIZED_ERROR.MESSAGE),
+        USER_NOT_AUTHORIZED_ERROR.CODE,
+        USER_NOT_AUTHORIZED_ERROR.PARAM,
+      );
+    }
+
+    // Boolean to determine whether user is an admin of the organization of the tag.
+    const currentUserIsOrganizationAdmin = currentUserAppProfile.adminFor.some(
+      (orgId) =>
+        orgId &&
+        new Types.ObjectId(orgId.toString()).equals(tag.organizationId),
+    );
+    //check whether current user can assign tag to users or not
+    if (
+      !(currentUserIsOrganizationAdmin || currentUserAppProfile.isSuperAdmin)
+    ) {
+      throw new errors.UnauthorizedError(
+        requestContext.translate(USER_NOT_AUTHORIZED_ERROR.MESSAGE),
+        USER_NOT_AUTHORIZED_ERROR.CODE,
+        USER_NOT_AUTHORIZED_ERROR.PARAM,
+      );
+    }
+
+    // Check if the request users exist
+    const requestUsers = await User.find({
+      _id: { $in: args.input.userIds },
+    }).lean();
+
+    const requestUserMap = new Map(
+      requestUsers.map((user) => [user._id.toString(), user]),
+    );
+
+    // Validate each user to be assigned the tag
+    const validRequestUsers = [];
+    for (const userId of args.input.userIds) {
+      const requestUser = requestUserMap.get(userId);
+
+      if (!requestUser) {
+        throw new errors.NotFoundError(
+          requestContext.translate(USER_NOT_FOUND_ERROR.MESSAGE),
+          USER_NOT_FOUND_ERROR.CODE,
+          USER_NOT_FOUND_ERROR.PARAM,
+        );
+      }
+
+      // Check that the user to which the tag is to be assigned is a member of the tag's organization
+      const requestUserBelongsToTagOrganization =
+        requestUser.joinedOrganizations.some((orgId) =>
+          orgId.equals(tag.organizationId),
+        );
+
+      if (!requestUserBelongsToTagOrganization) {
+        throw new errors.UnauthorizedError(
+          requestContext.translate(
+            USER_DOES_NOT_BELONG_TO_TAGS_ORGANIZATION.MESSAGE,
+          ),
+          USER_DOES_NOT_BELONG_TO_TAGS_ORGANIZATION.CODE,
+          USER_DOES_NOT_BELONG_TO_TAGS_ORGANIZATION.PARAM,
+        );
+      }
+
+      validRequestUsers.push(requestUser);
+    }
+
+    // Check existing tag assignments
+    const existingTagAssignments = await TagUser.find({
+      userId: { $in: validRequestUsers.map((user) => user._id) },
+      tagId: tag._id,
+    }).lean();
+
+    const existingAssignmentsMap = existingTagAssignments.map((assign) =>
+      assign.userId.toString(),
+    );
+
+    // Filter out users who already have the tag
+    const newAssignments = validRequestUsers.filter(
+      (user) => !existingAssignmentsMap.includes(user._id.toString()),
+    );
+
+    if (newAssignments.length === 0) {
+      return tag; // No new assignments to be made
+    }
+
+    // Assign all the ancestor tags
+    const allAncestorTags = [tag._id];
+    let currentTag = tag;
+    while (currentTag?.parentTagId) {
+      const currentParentTag = await OrganizationTagUser.findOne({
+        _id: currentTag.parentTagId,
+      }).lean();
+
+      if (currentParentTag) {
+        allAncestorTags.push(currentParentTag?._id);
+        currentTag = currentParentTag;
+      }
+    }
+
+    const tagUserDocs = newAssignments.flatMap((userId) =>
+      allAncestorTags.map((tagId) => ({
+        updateOne: {
+          filter: { userId, tagId },
+          update: { $setOnInsert: { userId, tagId } },
+          upsert: true,
+          setDefaultsOnInsert: true,
+        },
+      })),
+    );
+
+    if (tagUserDocs.length > 0) {
+      await TagUser.bulkWrite(tagUserDocs);
+    }
+
+    return tag;
+  };

src/resolvers/Mutation/index.ts

@@ -8,6 +8,7 @@ import { addOrganizationImage } from "./addOrganizationImage";
 import { addUserCustomData } from "./addUserCustomData";
 import { addUserImage } from "./addUserImage";
 import { addUserToUserFamily } from "./addUserToUserFamily";
+import { addPeopleToUserTag } from "./addPeopleToUserTag";
 import { assignUserTag } from "./assignUserTag";
 import { blockPluginCreationBySuperadmin } from "./blockPluginCreationBySuperadmin";
 import { blockUser } from "./blockUser";
@@ -125,6 +126,7 @@ export const Mutation: MutationResolvers = {
   addUserCustomData,
   addUserImage,
   addUserToUserFamily,
+  addPeopleToUserTag,
   removeUserFamily,
   removeUserFromUserFamily,
   createUserFamily,

src/resolvers/UserTag/index.ts

@@ -3,10 +3,12 @@ import { childTags } from "./childTags";
 import { organization } from "./organization";
 import { parentTag } from "./parentTag";
 import { usersAssignedTo } from "./usersAssignedTo";
+import { usersToAssignTo } from "./usersToAssignTo";
 
 export const UserTag: UserTagResolvers = {
   childTags,
   organization,
   parentTag,
   usersAssignedTo,
+  usersToAssignTo,
 };