refactoring

Resolve #7779

10 files changed, 509 insertions, 0 deletions

diff --git a/packages/backend/src/server/api/endpoints/channels/create.ts b/packages/backend/src/server/api/endpoints/channels/create.ts
new file mode 100644
index 0000000000..0cedfd6c6a
--- /dev/null
+++ b/packages/backend/src/server/api/endpoints/channels/create.ts
@@ -0,0 +1,68 @@
+import $ from 'cafy';
+import define from '../../define';
+import { ApiError } from '../../error';
+import { Channels, DriveFiles } from '@/models/index';
+import { Channel } from '@/models/entities/channel';
+import { genId } from '@/misc/gen-id';
+import { ID } from '@/misc/cafy-id';
+
+export const meta = {
+	tags: ['channels'],
+
+	requireCredential: true as const,
+
+	kind: 'write:channels',
+
+	params: {
+		name: {
+			validator: $.str.range(1, 128)
+		},
+
+		description: {
+			validator: $.nullable.optional.str.range(1, 2048)
+		},
+
+		bannerId: {
+			validator: $.nullable.optional.type(ID),
+		}
+	},
+
+	res: {
+		type: 'object' as const,
+		optional: false as const, nullable: false as const,
+		ref: 'Channel',
+	},
+
+	errors: {
+		noSuchFile: {
+			message: 'No such file.',
+			code: 'NO_SUCH_FILE',
+			id: 'cd1e9f3e-5a12-4ab4-96f6-5d0a2cc32050'
+		},
+	}
+};
+
+export default define(meta, async (ps, user) => {
+	let banner = null;
+	if (ps.bannerId != null) {
+		banner = await DriveFiles.findOne({
+			id: ps.bannerId,
+			userId: user.id
+		});
+
+		if (banner == null) {
+			throw new ApiError(meta.errors.noSuchFile);
+		}
+	}
+
+	const channel = await Channels.save({
+		id: genId(),
+		createdAt: new Date(),
+		userId: user.id,
+		name: ps.name,
+		description: ps.description || null,
+		bannerId: banner ? banner.id : null,
+	} as Channel);
+
+	return await Channels.pack(channel, user);
+});
diff --git a/packages/backend/src/server/api/endpoints/channels/featured.ts b/packages/backend/src/server/api/endpoints/channels/featured.ts
new file mode 100644
index 0000000000..dc1f49f960
--- /dev/null
+++ b/packages/backend/src/server/api/endpoints/channels/featured.ts
@@ -0,0 +1,28 @@
+import define from '../../define';
+import { Channels } from '@/models/index';
+
+export const meta = {
+	tags: ['channels'],
+
+	requireCredential: false as const,
+
+	res: {
+		type: 'array' as const,
+		optional: false as const, nullable: false as const,
+		items: {
+			type: 'object' as const,
+			optional: false as const, nullable: false as const,
+			ref: 'Channel',
+		}
+	},
+};
+
+export default define(meta, async (ps, me) => {
+	const query = Channels.createQueryBuilder('channel')
+		.where('channel.lastNotedAt IS NOT NULL')
+		.orderBy('channel.lastNotedAt', 'DESC');
+
+	const channels = await query.take(10).getMany();
+
+	return await Promise.all(channels.map(x => Channels.pack(x, me)));
+});
diff --git a/packages/backend/src/server/api/endpoints/channels/follow.ts b/packages/backend/src/server/api/endpoints/channels/follow.ts
new file mode 100644
index 0000000000..d4664e6996
--- /dev/null
+++ b/packages/backend/src/server/api/endpoints/channels/follow.ts
@@ -0,0 +1,48 @@
+import $ from 'cafy';
+import { ID } from '@/misc/cafy-id';
+import define from '../../define';
+import { ApiError } from '../../error';
+import { Channels, ChannelFollowings } from '@/models/index';
+import { genId } from '@/misc/gen-id';
+import { publishUserEvent } from '@/services/stream';
+
+export const meta = {
+	tags: ['channels'],
+
+	requireCredential: true as const,
+
+	kind: 'write:channels',
+
+	params: {
+		channelId: {
+			validator: $.type(ID),
+		},
+	},
+
+	errors: {
+		noSuchChannel: {
+			message: 'No such channel.',
+			code: 'NO_SUCH_CHANNEL',
+			id: 'c0031718-d573-4e85-928e-10039f1fbb68'
+		},
+	}
+};
+
+export default define(meta, async (ps, user) => {
+	const channel = await Channels.findOne({
+		id: ps.channelId,
+	});
+
+	if (channel == null) {
+		throw new ApiError(meta.errors.noSuchChannel);
+	}
+
+	await ChannelFollowings.insert({
+		id: genId(),
+		createdAt: new Date(),
+		followerId: user.id,
+		followeeId: channel.id,
+	});
+
+	publishUserEvent(user.id, 'followChannel', channel);
+});
diff --git a/packages/backend/src/server/api/endpoints/channels/followed.ts b/packages/backend/src/server/api/endpoints/channels/followed.ts
new file mode 100644
index 0000000000..be239a01d6
--- /dev/null
+++ b/packages/backend/src/server/api/endpoints/channels/followed.ts
@@ -0,0 +1,49 @@
+import $ from 'cafy';
+import { ID } from '@/misc/cafy-id';
+import define from '../../define';
+import { Channels, ChannelFollowings } from '@/models/index';
+import { makePaginationQuery } from '../../common/make-pagination-query';
+
+export const meta = {
+	tags: ['channels', 'account'],
+
+	requireCredential: true as const,
+
+	kind: 'read:channels',
+
+	params: {
+		sinceId: {
+			validator: $.optional.type(ID),
+		},
+
+		untilId: {
+			validator: $.optional.type(ID),
+		},
+
+		limit: {
+			validator: $.optional.num.range(1, 100),
+			default: 5
+		},
+	},
+
+	res: {
+		type: 'array' as const,
+		optional: false as const, nullable: false as const,
+		items: {
+			type: 'object' as const,
+			optional: false as const, nullable: false as const,
+			ref: 'Channel',
+		}
+	},
+};
+
+export default define(meta, async (ps, me) => {
+	const query = makePaginationQuery(ChannelFollowings.createQueryBuilder(), ps.sinceId, ps.untilId)
+		.andWhere({ followerId: me.id });
+
+	const followings = await query
+		.take(ps.limit!)
+		.getMany();
+
+	return await Promise.all(followings.map(x => Channels.pack(x.followeeId, me)));
+});
diff --git a/packages/backend/src/server/api/endpoints/channels/owned.ts b/packages/backend/src/server/api/endpoints/channels/owned.ts
new file mode 100644
index 0000000000..4a2e9db17b
--- /dev/null
+++ b/packages/backend/src/server/api/endpoints/channels/owned.ts
@@ -0,0 +1,49 @@
+import $ from 'cafy';
+import { ID } from '@/misc/cafy-id';
+import define from '../../define';
+import { Channels } from '@/models/index';
+import { makePaginationQuery } from '../../common/make-pagination-query';
+
+export const meta = {
+	tags: ['channels', 'account'],
+
+	requireCredential: true as const,
+
+	kind: 'read:channels',
+
+	params: {
+		sinceId: {
+			validator: $.optional.type(ID),
+		},
+
+		untilId: {
+			validator: $.optional.type(ID),
+		},
+
+		limit: {
+			validator: $.optional.num.range(1, 100),
+			default: 5
+		},
+	},
+
+	res: {
+		type: 'array' as const,
+		optional: false as const, nullable: false as const,
+		items: {
+			type: 'object' as const,
+			optional: false as const, nullable: false as const,
+			ref: 'Channel',
+		}
+	},
+};
+
+export default define(meta, async (ps, me) => {
+	const query = makePaginationQuery(Channels.createQueryBuilder(), ps.sinceId, ps.untilId)
+		.andWhere({ userId: me.id });
+
+	const channels = await query
+		.take(ps.limit!)
+		.getMany();
+
+	return await Promise.all(channels.map(x => Channels.pack(x, me)));
+});
diff --git a/packages/backend/src/server/api/endpoints/channels/pin-note.ts b/packages/backend/src/server/api/endpoints/channels/pin-note.ts
new file mode 100644
index 0000000000..e69de29bb2
--- /dev/null
+++ b/packages/backend/src/server/api/endpoints/channels/pin-note.ts
diff --git a/packages/backend/src/server/api/endpoints/channels/show.ts b/packages/backend/src/server/api/endpoints/channels/show.ts
new file mode 100644
index 0000000000..803ce6363d
--- /dev/null
+++ b/packages/backend/src/server/api/endpoints/channels/show.ts
@@ -0,0 +1,43 @@
+import $ from 'cafy';
+import { ID } from '@/misc/cafy-id';
+import define from '../../define';
+import { ApiError } from '../../error';
+import { Channels } from '@/models/index';
+
+export const meta = {
+	tags: ['channels'],
+
+	requireCredential: false as const,
+
+	params: {
+		channelId: {
+			validator: $.type(ID),
+		},
+	},
+
+	res: {
+		type: 'object' as const,
+		optional: false as const, nullable: false as const,
+		ref: 'Channel',
+	},
+
+	errors: {
+		noSuchChannel: {
+			message: 'No such channel.',
+			code: 'NO_SUCH_CHANNEL',
+			id: '6f6c314b-7486-4897-8966-c04a66a02923'
+		},
+	}
+};
+
+export default define(meta, async (ps, me) => {
+	const channel = await Channels.findOne({
+		id: ps.channelId,
+	});
+
+	if (channel == null) {
+		throw new ApiError(meta.errors.noSuchChannel);
+	}
+
+	return await Channels.pack(channel, me);
+});
diff --git a/packages/backend/src/server/api/endpoints/channels/timeline.ts b/packages/backend/src/server/api/endpoints/channels/timeline.ts
new file mode 100644
index 0000000000..0ed057a11e
--- /dev/null
+++ b/packages/backend/src/server/api/endpoints/channels/timeline.ts
@@ -0,0 +1,85 @@
+import $ from 'cafy';
+import { ID } from '@/misc/cafy-id';
+import define from '../../define';
+import { ApiError } from '../../error';
+import { Notes, Channels } from '@/models/index';
+import { makePaginationQuery } from '../../common/make-pagination-query';
+import { activeUsersChart } from '@/services/chart/index';
+
+export const meta = {
+	tags: ['notes', 'channels'],
+
+	requireCredential: false as const,
+
+	params: {
+		channelId: {
+			validator: $.type(ID),
+		},
+
+		limit: {
+			validator: $.optional.num.range(1, 100),
+			default: 10,
+		},
+
+		sinceId: {
+			validator: $.optional.type(ID),
+		},
+
+		untilId: {
+			validator: $.optional.type(ID),
+		},
+
+		sinceDate: {
+			validator: $.optional.num,
+		},
+
+		untilDate: {
+			validator: $.optional.num,
+		},
+	},
+
+	res: {
+		type: 'array' as const,
+		optional: false as const, nullable: false as const,
+		items: {
+			type: 'object' as const,
+			optional: false as const, nullable: false as const,
+			ref: 'Note',
+		}
+	},
+
+	errors: {
+		noSuchChannel: {
+			message: 'No such channel.',
+			code: 'NO_SUCH_CHANNEL',
+			id: '4d0eeeba-a02c-4c3c-9966-ef60d38d2e7f'
+		}
+	}
+};
+
+export default define(meta, async (ps, user) => {
+	const channel = await Channels.findOne({
+		id: ps.channelId,
+	});
+
+	if (channel == null) {
+		throw new ApiError(meta.errors.noSuchChannel);
+	}
+
+	//#region Construct query
+	const query = makePaginationQuery(Notes.createQueryBuilder('note'), ps.sinceId, ps.untilId, ps.sinceDate, ps.untilDate)
+		.andWhere('note.channelId = :channelId', { channelId: channel.id })
+		.innerJoinAndSelect('note.user', 'user')
+		.leftJoinAndSelect('note.reply', 'reply')
+		.leftJoinAndSelect('note.renote', 'renote')
+		.leftJoinAndSelect('reply.user', 'replyUser')
+		.leftJoinAndSelect('renote.user', 'renoteUser')
+		.leftJoinAndSelect('note.channel', 'channel');
+	//#endregion
+
+	const timeline = await query.take(ps.limit!).getMany();
+
+	if (user) activeUsersChart.update(user);
+
+	return await Notes.packMany(timeline, user);
+});
diff --git a/packages/backend/src/server/api/endpoints/channels/unfollow.ts b/packages/backend/src/server/api/endpoints/channels/unfollow.ts
new file mode 100644
index 0000000000..700f8e93ba
--- /dev/null
+++ b/packages/backend/src/server/api/endpoints/channels/unfollow.ts
@@ -0,0 +1,45 @@
+import $ from 'cafy';
+import { ID } from '@/misc/cafy-id';
+import define from '../../define';
+import { ApiError } from '../../error';
+import { Channels, ChannelFollowings } from '@/models/index';
+import { publishUserEvent } from '@/services/stream';
+
+export const meta = {
+	tags: ['channels'],
+
+	requireCredential: true as const,
+
+	kind: 'write:channels',
+
+	params: {
+		channelId: {
+			validator: $.type(ID),
+		},
+	},
+
+	errors: {
+		noSuchChannel: {
+			message: 'No such channel.',
+			code: 'NO_SUCH_CHANNEL',
+			id: '19959ee9-0153-4c51-bbd9-a98c49dc59d6'
+		},
+	}
+};
+
+export default define(meta, async (ps, user) => {
+	const channel = await Channels.findOne({
+		id: ps.channelId,
+	});
+
+	if (channel == null) {
+		throw new ApiError(meta.errors.noSuchChannel);
+	}
+
+	await ChannelFollowings.delete({
+		followerId: user.id,
+		followeeId: channel.id,
+	});
+
+	publishUserEvent(user.id, 'unfollowChannel', channel);
+});
diff --git a/packages/backend/src/server/api/endpoints/channels/update.ts b/packages/backend/src/server/api/endpoints/channels/update.ts
new file mode 100644
index 0000000000..9b447bd04b
--- /dev/null
+++ b/packages/backend/src/server/api/endpoints/channels/update.ts
@@ -0,0 +1,94 @@
+import $ from 'cafy';
+import { ID } from '@/misc/cafy-id';
+import define from '../../define';
+import { ApiError } from '../../error';
+import { Channels, DriveFiles } from '@/models/index';
+
+export const meta = {
+	tags: ['channels'],
+
+	requireCredential: true as const,
+
+	kind: 'write:channels',
+
+	params: {
+		channelId: {
+			validator: $.type(ID),
+		},
+
+		name: {
+			validator: $.optional.str.range(1, 128)
+		},
+
+		description: {
+			validator: $.nullable.optional.str.range(1, 2048)
+		},
+
+		bannerId: {
+			validator: $.nullable.optional.type(ID),
+		}
+	},
+
+	res: {
+		type: 'object' as const,
+		optional: false as const, nullable: false as const,
+		ref: 'Channel',
+	},
+
+	errors: {
+		noSuchChannel: {
+			message: 'No such channel.',
+			code: 'NO_SUCH_CHANNEL',
+			id: 'f9c5467f-d492-4c3c-9a8d-a70dacc86512'
+		},
+
+		accessDenied: {
+			message: 'You do not have edit privilege of the channel.',
+			code: 'ACCESS_DENIED',
+			id: '1fb7cb09-d46a-4fdf-b8df-057788cce513'
+		},
+
+		noSuchFile: {
+			message: 'No such file.',
+			code: 'NO_SUCH_FILE',
+			id: 'e86c14a4-0da2-4032-8df3-e737a04c7f3b'
+		},
+	}
+};
+
+export default define(meta, async (ps, me) => {
+	const channel = await Channels.findOne({
+		id: ps.channelId,
+	});
+
+	if (channel == null) {
+		throw new ApiError(meta.errors.noSuchChannel);
+	}
+
+	if (channel.userId !== me.id) {
+		throw new ApiError(meta.errors.accessDenied);
+	}
+
+	// tslint:disable-next-line:no-unnecessary-initializer
+	let banner = undefined;
+	if (ps.bannerId != null) {
+		banner = await DriveFiles.findOne({
+			id: ps.bannerId,
+			userId: me.id
+		});
+
+		if (banner == null) {
+			throw new ApiError(meta.errors.noSuchFile);
+		}
+	} else if (ps.bannerId === null) {
+		banner = null;
+	}
+
+	await Channels.update(channel.id, {
+		...(ps.name !== undefined ? { name: ps.name } : {}),
+		...(ps.description !== undefined ? { description: ps.description } : {}),
+		...(banner ? { bannerId: banner.id } : {}),
+	});
+
+	return await Channels.pack(channel.id, me);
+});