Resolve #4941

src/server/api/endpoints/users/groups/invite.ts

@@ -0,0 +1,104 @@
+import $ from 'cafy';
+import { ID } from '../../../../../misc/cafy-id';
+import define from '../../../define';
+import { ApiError } from '../../../error';
+import { getUser } from '../../../common/getters';
+import { UserGroups, UserGroupJoinings, UserGroupInvites } from '../../../../../models';
+import { genId } from '../../../../../misc/gen-id';
+import { UserGroupInvite } from '../../../../../models/entities/user-group-invite';
+
+export const meta = {
+	desc: {
+		'ja-JP': '指定したユーザーグループに指定したユーザーを招待します。',
+		'en-US': 'Invite a user to a user group.'
+	},
+
+	tags: ['groups', 'users'],
+
+	requireCredential: true,
+
+	kind: 'write:user-groups',
+
+	params: {
+		groupId: {
+			validator: $.type(ID),
+		},
+
+		userId: {
+			validator: $.type(ID),
+			desc: {
+				'ja-JP': '対象のユーザーのID',
+				'en-US': 'Target user ID'
+			}
+		},
+	},
+
+	errors: {
+		noSuchGroup: {
+			message: 'No such group.',
+			code: 'NO_SUCH_GROUP',
+			id: '583f8bc0-8eee-4b78-9299-1e14fc91e409'
+		},
+
+		noSuchUser: {
+			message: 'No such user.',
+			code: 'NO_SUCH_USER',
+			id: 'da52de61-002c-475b-90e1-ba64f9cf13a8'
+		},
+
+		alreadyAdded: {
+			message: 'That user has already been added to that group.',
+			code: 'ALREADY_ADDED',
+			id: '7e35c6a0-39b2-4488-aea6-6ee20bd5da2c'
+		},
+
+		alreadyInvited: {
+			message: 'That user has already been invited to that group.',
+			code: 'ALREADY_INVITED',
+			id: 'ee0f58b4-b529-4d13-b761-b9a3e69f97e6'
+		}
+	}
+};
+
+export default define(meta, async (ps, me) => {
+	// Fetch the group
+	const userGroup = await UserGroups.findOne({
+		id: ps.groupId,
+		userId: me.id,
+	});
+
+	if (userGroup == null) {
+		throw new ApiError(meta.errors.noSuchGroup);
+	}
+
+	// Fetch the user
+	const user = await getUser(ps.userId).catch(e => {
+		if (e.id === '15348ddd-432d-49c2-8a5a-8069753becff') throw new ApiError(meta.errors.noSuchUser);
+		throw e;
+	});
+
+	const joining = await UserGroupJoinings.findOne({
+		userGroupId: userGroup.id,
+		userId: user.id
+	});
+
+	if (joining) {
+		throw new ApiError(meta.errors.alreadyAdded);
+	}
+
+	const invite = await UserGroupInvites.findOne({
+		userGroupId: userGroup.id,
+		userId: user.id
+	});
+
+	if (invite) {
+		throw new ApiError(meta.errors.alreadyInvited);
+	}
+
+	await UserGroupInvites.save({
+		id: genId(),
+		createdAt: new Date(),
+		userId: user.id,
+		userGroupId: userGroup.id
+	} as UserGroupInvite);
+});