1 files changed, 129 insertions, 0 deletions
diff --git a/packages/backend/src/services/blocking/create.ts b/packages/backend/src/services/blocking/create.ts
new file mode 100644
index 0000000000..6aadc847a9
--- /dev/null
+++ b/packages/backend/src/services/blocking/create.ts
@@ -0,0 +1,129 @@
+import { publishMainStream, publishUserEvent } from '@/services/stream';
+import { renderActivity } from '@/remote/activitypub/renderer/index';
+import renderFollow from '@/remote/activitypub/renderer/follow';
+import renderUndo from '@/remote/activitypub/renderer/undo';
+import renderBlock from '@/remote/activitypub/renderer/block';
+import { deliver } from '@/queue/index';
+import renderReject from '@/remote/activitypub/renderer/reject';
+import { User } from '@/models/entities/user';
+import { Blockings, Users, FollowRequests, Followings, UserListJoinings, UserLists } from '@/models/index';
+import { perUserFollowingChart } from '@/services/chart/index';
+import { genId } from '@/misc/gen-id';
+import { IdentifiableError } from '@/misc/identifiable-error';
+
+export default async function(blocker: User, blockee: User) {
+	await Promise.all([
+		cancelRequest(blocker, blockee),
+		cancelRequest(blockee, blocker),
+		unFollow(blocker, blockee),
+		unFollow(blockee, blocker),
+		removeFromList(blockee, blocker),
+	]);
+
+	await Blockings.insert({
+		id: genId(),
+		createdAt: new Date(),
+		blockerId: blocker.id,
+		blockeeId: blockee.id,
+	});
+
+	if (Users.isLocalUser(blocker) && Users.isRemoteUser(blockee)) {
+		const content = renderActivity(renderBlock(blocker, blockee));
+		deliver(blocker, content, blockee.inbox);
+	}
+}
+
+async function cancelRequest(follower: User, followee: User) {
+	const request = await FollowRequests.findOne({
+		followeeId: followee.id,
+		followerId: follower.id
+	});
+
+	if (request == null) {
+		return;
+	}
+
+	await FollowRequests.delete({
+		followeeId: followee.id,
+		followerId: follower.id
+	});
+
+	if (Users.isLocalUser(followee)) {
+		Users.pack(followee, followee, {
+			detail: true
+		}).then(packed => publishMainStream(followee.id, 'meUpdated', packed));
+	}
+
+	if (Users.isLocalUser(follower)) {
+		Users.pack(followee, follower, {
+			detail: true
+		}).then(packed => {
+			publishUserEvent(follower.id, 'unfollow', packed);
+			publishMainStream(follower.id, 'unfollow', packed);
+		});
+	}
+
+	// リモートにフォローリクエストをしていたらUndoFollow送信
+	if (Users.isLocalUser(follower) && Users.isRemoteUser(followee)) {
+		const content = renderActivity(renderUndo(renderFollow(follower, followee), follower));
+		deliver(follower, content, followee.inbox);
+	}
+
+	// リモートからフォローリクエストを受けていたらReject送信
+	if (Users.isRemoteUser(follower) && Users.isLocalUser(followee)) {
+		const content = renderActivity(renderReject(renderFollow(follower, followee, request.requestId!), followee));
+		deliver(followee, content, follower.inbox);
+	}
+}
+
+async function unFollow(follower: User, followee: User) {
+	const following = await Followings.findOne({
+		followerId: follower.id,
+		followeeId: followee.id
+	});
+
+	if (following == null) {
+		return;
+	}
+
+	Followings.delete(following.id);
+
+	//#region Decrement following count
+	Users.decrement({ id: follower.id }, 'followingCount', 1);
+	//#endregion
+
+	//#region Decrement followers count
+	Users.decrement({ id: followee.id }, 'followersCount', 1);
+	//#endregion
+
+	perUserFollowingChart.update(follower, followee, false);
+
+	// Publish unfollow event
+	if (Users.isLocalUser(follower)) {
+		Users.pack(followee, follower, {
+			detail: true
+		}).then(packed => {
+			publishUserEvent(follower.id, 'unfollow', packed);
+			publishMainStream(follower.id, 'unfollow', packed);
+		});
+	}
+
+	// リモートにフォローをしていたらUndoFollow送信
+	if (Users.isLocalUser(follower) && Users.isRemoteUser(followee)) {
+		const content = renderActivity(renderUndo(renderFollow(follower, followee), follower));
+		deliver(follower, content, followee.inbox);
+	}
+}
+
+async function removeFromList(listOwner: User, user: User) {
+	const userLists = await UserLists.find({
+		userId: listOwner.id,
+	});
+
+	for (const userList of userLists) {
+		await UserListJoinings.delete({
+			userListId: userList.id,
+			userId: user.id,
+		});
+	}
+}