Introduce per-instance chart (#4183)

* Introduce per-instance chart

* Implement chart view in client

* Handle note deleting

* More chart srcs

* Add drive stats

* Improve drive stats

* Fix bug

* Add icon

7 files changed, 374 insertions, 8 deletions

diff --git a/src/services/chart/instance.ts b/src/services/chart/instance.ts
new file mode 100644
index 0000000000..5af398b902
--- /dev/null
+++ b/src/services/chart/instance.ts
@@ -0,0 +1,302 @@
+import autobind from 'autobind-decorator';
+import Chart, { Obj } from '.';
+import User from '../../models/user';
+import Note from '../../models/note';
+import Following from '../../models/following';
+import DriveFile, { IDriveFile } from '../../models/drive-file';
+
+/**
+ * インスタンスごとのチャート
+ */
+type InstanceLog = {
+	requests: {
+		/**
+		 * 失敗したリクエスト数
+		 */
+		failed: number;
+
+		/**
+		 * 成功したリクエスト数
+		 */
+		succeeded: number;
+
+		/**
+		 * 受信したリクエスト数
+		 */
+		received: number;
+	};
+
+	notes: {
+		/**
+		 * 集計期間時点での、全投稿数
+		 */
+		total: number;
+
+		/**
+		 * 増加した投稿数
+		 */
+		inc: number;
+
+		/**
+		 * 減少した投稿数
+		 */
+		dec: number;
+	};
+
+	users: {
+		/**
+		 * 集計期間時点での、全ユーザー数
+		 */
+		total: number;
+
+		/**
+		 * 増加したユーザー数
+		 */
+		inc: number;
+
+		/**
+		 * 減少したユーザー数
+		 */
+		dec: number;
+	};
+
+	following: {
+		/**
+		 * 集計期間時点での、全フォロー数
+		 */
+		total: number;
+
+		/**
+		 * 増加したフォロー数
+		 */
+		inc: number;
+
+		/**
+		 * 減少したフォロー数
+		 */
+		dec: number;
+	};
+
+	followers: {
+		/**
+		 * 集計期間時点での、全フォロワー数
+		 */
+		total: number;
+
+		/**
+		 * 増加したフォロワー数
+		 */
+		inc: number;
+
+		/**
+		 * 減少したフォロワー数
+		 */
+		dec: number;
+	};
+
+	drive: {
+		/**
+		 * 集計期間時点での、全ドライブファイル数
+		 */
+		totalFiles: number;
+
+		/**
+		 * 集計期間時点での、全ドライブファイルの合計サイズ
+		 */
+		totalUsage: number;
+
+		/**
+		 * 増加したドライブファイル数
+		 */
+		incFiles: number;
+
+		/**
+		 * 増加したドライブ使用量
+		 */
+		incUsage: number;
+
+		/**
+		 * 減少したドライブファイル数
+		 */
+		decFiles: number;
+
+		/**
+		 * 減少したドライブ使用量
+		 */
+		decUsage: number;
+	};
+};
+
+class InstanceChart extends Chart<InstanceLog> {
+	constructor() {
+		super('instance', true);
+	}
+
+	@autobind
+	protected async getTemplate(init: boolean, latest?: InstanceLog, group?: any): Promise<InstanceLog> {
+		const calcUsage = () => DriveFile
+			.aggregate([{
+				$match: {
+					'metadata._user.host': group,
+					'metadata.deletedAt': { $exists: false }
+				}
+			}, {
+				$project: {
+					length: true
+				}
+			}, {
+				$group: {
+					_id: null,
+					usage: { $sum: '$length' }
+				}
+			}])
+			.then(res => res.length > 0 ? res[0].usage : 0);
+
+		const [
+			notesCount,
+			usersCount,
+			followingCount,
+			followersCount,
+			driveFiles,
+			driveUsage,
+		] = init ? await Promise.all([
+			Note.count({ '_user.host': group }),
+			User.count({ host: group }),
+			Following.count({ '_follower.host': group }),
+			Following.count({ '_followee.host': group }),
+			DriveFile.count({ 'metadata._user.host': group }),
+			calcUsage(),
+		]) : [
+			latest ? latest.notes.total : 0,
+			latest ? latest.users.total : 0,
+			latest ? latest.following.total : 0,
+			latest ? latest.followers.total : 0,
+			latest ? latest.drive.totalFiles : 0,
+			latest ? latest.drive.totalUsage : 0,
+		];
+
+		return {
+			requests: {
+				failed: 0,
+				succeeded: 0,
+				received: 0
+			},
+			notes: {
+				total: notesCount,
+				inc: 0,
+				dec: 0
+			},
+			users: {
+				total: usersCount,
+				inc: 0,
+				dec: 0
+			},
+			following: {
+				total: followingCount,
+				inc: 0,
+				dec: 0
+			},
+			followers: {
+				total: followersCount,
+				inc: 0,
+				dec: 0
+			},
+			drive: {
+				totalFiles: driveFiles,
+				totalUsage: driveUsage,
+				incFiles: 0,
+				incUsage: 0,
+				decFiles: 0,
+				decUsage: 0
+			}
+		};
+	}
+
+	@autobind
+	public async requestReceived(host: string) {
+		await this.inc({
+			requests: {
+				received: 1
+			}
+		}, host);
+	}
+
+	@autobind
+	public async requestSent(host: string, isSucceeded: boolean) {
+		const update: Obj = {};
+
+		if (isSucceeded) {
+			update.succeeded = 1;
+		} else {
+			update.failed = 1;
+		}
+
+		await this.inc({
+			requests: update
+		}, host);
+	}
+
+	@autobind
+	public async newUser(host: string) {
+		await this.inc({
+			users: {
+				total: 1,
+				inc: 1
+			}
+		}, host);
+	}
+
+	@autobind
+	public async updateNote(host: string, isAdditional: boolean) {
+		await this.inc({
+			notes: {
+				total: isAdditional ? 1 : -1,
+				inc: isAdditional ? 1 : 0,
+				dec: isAdditional ? 0 : 1,
+			}
+		}, host);
+	}
+
+	@autobind
+	public async updateFollowing(host: string, isAdditional: boolean) {
+		await this.inc({
+			following: {
+				total: isAdditional ? 1 : -1,
+				inc: isAdditional ? 1 : 0,
+				dec: isAdditional ? 0 : 1,
+			}
+		}, host);
+	}
+
+	@autobind
+	public async updateFollowers(host: string, isAdditional: boolean) {
+		await this.inc({
+			followers: {
+				total: isAdditional ? 1 : -1,
+				inc: isAdditional ? 1 : 0,
+				dec: isAdditional ? 0 : 1,
+			}
+		}, host);
+	}
+
+	@autobind
+	public async updateDrive(file: IDriveFile, isAdditional: boolean) {
+		const update: Obj = {};
+
+		update.totalFiles = isAdditional ? 1 : -1;
+		update.totalUsage = isAdditional ? file.length : -file.length;
+		if (isAdditional) {
+			update.incFiles = 1;
+			update.incUsage = file.length;
+		} else {
+			update.decFiles = 1;
+			update.decUsage = file.length;
+		}
+
+		await this.inc({
+			drive: update
+		}, file.metadata._user.host);
+	}
+}
+
+export default new InstanceChart();
diff --git a/src/services/drive/add-file.ts b/src/services/drive/add-file.ts
index 0e588d3442..9f3805f94b 100644
--- a/src/services/drive/add-file.ts
+++ b/src/services/drive/add-file.ts
@@ -13,17 +13,19 @@ import DriveFile, { IMetadata, getDriveFileBucket, IDriveFile } from '../../mode
 import DriveFolder from '../../models/drive-folder';
 import { pack } from '../../models/drive-file';
 import { publishMainStream, publishDriveStream } from '../stream';
-import { isLocalUser, IUser, IRemoteUser } from '../../models/user';
+import { isLocalUser, IUser, IRemoteUser, isRemoteUser } from '../../models/user';
 import delFile from './delete-file';
 import config from '../../config';
 import { getDriveFileWebpublicBucket } from '../../models/drive-file-webpublic';
 import { getDriveFileThumbnailBucket } from '../../models/drive-file-thumbnail';
 import driveChart from '../../services/chart/drive';
 import perUserDriveChart from '../../services/chart/per-user-drive';
+import instanceChart from '../../services/chart/instance';
 import fetchMeta from '../../misc/fetch-meta';
 import { GenerateVideoThumbnail } from './generate-video-thumbnail';
 import { driveLogger } from './logger';
 import { IImage, ConvertToJpeg, ConvertToWebp, ConvertToPng } from './image-processor';
+import Instance from '../../models/instance';
 
 const logger = driveLogger.createSubLogger('register', 'yellow');
 
@@ -523,6 +525,15 @@ export default async function(
 	// 統計を更新
 	driveChart.update(driveFile, true);
 	perUserDriveChart.update(driveFile, true);
+	if (isRemoteUser(driveFile.metadata._user)) {
+		instanceChart.updateDrive(driveFile, true);
+		Instance.update({ host: driveFile.metadata._user.host }, {
+			$inc: {
+				driveUsage: driveFile.length,
+				driveFiles: 1
+			}
+		});
+	}
 
 	return driveFile;
 }
diff --git a/src/services/drive/delete-file.ts b/src/services/drive/delete-file.ts
index 4211cd8291..c5c15ca20b 100644
--- a/src/services/drive/delete-file.ts
+++ b/src/services/drive/delete-file.ts
@@ -4,7 +4,10 @@ import DriveFileThumbnail, { DriveFileThumbnailChunk } from '../../models/drive-
 import config from '../../config';
 import driveChart from '../../services/chart/drive';
 import perUserDriveChart from '../../services/chart/per-user-drive';
+import instanceChart from '../../services/chart/instance';
 import DriveFileWebpublic, { DriveFileWebpublicChunk } from '../../models/drive-file-webpublic';
+import Instance from '../../models/instance';
+import { isRemoteUser } from '../../models/user';
 
 export default async function(file: IDriveFile, isExpired = false) {
 	if (file.metadata.storage == 'minio') {
@@ -84,4 +87,13 @@ export default async function(file: IDriveFile, isExpired = false) {
 	// 統計を更新
 	driveChart.update(file, false);
 	perUserDriveChart.update(file, false);
+	if (isRemoteUser(file.metadata._user)) {
+		instanceChart.updateDrive(file, false);
+		Instance.update({ host: file.metadata._user.host }, {
+			$inc: {
+				driveUsage: -file.length,
+				driveFiles: -1
+			}
+		});
+	}
 }
diff --git a/src/services/following/create.ts b/src/services/following/create.ts
index 65b80dcf84..05f4632582 100644
--- a/src/services/following/create.ts
+++ b/src/services/following/create.ts
@@ -12,6 +12,7 @@ import createFollowRequest from './requests/create';
 import perUserFollowingChart from '../../services/chart/per-user-following';
 import { registerOrFetchInstanceDoc } from '../register-or-fetch-instance-doc';
 import Instance from '../../models/instance';
+import instanceChart from '../../services/chart/instance';
 
 export default async function(follower: IUser, followee: IUser, requestId?: string) {
 	// check blocking
@@ -108,8 +109,7 @@ export default async function(follower: IUser, followee: IUser, requestId?: stri
 				}
 			});
 
-			// TODO
-			//perInstanceChart.newFollowing();
+			instanceChart.updateFollowing(i.host, true);
 		});
 	} else if (isLocalUser(follower) && isRemoteUser(followee)) {
 		registerOrFetchInstanceDoc(followee.host).then(i => {
@@ -119,8 +119,7 @@ export default async function(follower: IUser, followee: IUser, requestId?: stri
 				}
 			});
 
-			// TODO
-			//perInstanceChart.newFollower();
+			instanceChart.updateFollowers(i.host, true);
 		});
 	}
 	//#endregion
diff --git a/src/services/following/delete.ts b/src/services/following/delete.ts
index 87eaf826e5..93f72b51d8 100644
--- a/src/services/following/delete.ts
+++ b/src/services/following/delete.ts
@@ -7,6 +7,9 @@ import renderUndo from '../../remote/activitypub/renderer/undo';
 import { deliver } from '../../queue';
 import perUserFollowingChart from '../../services/chart/per-user-following';
 import Logger from '../../misc/logger';
+import { registerOrFetchInstanceDoc } from '../register-or-fetch-instance-doc';
+import Instance from '../../models/instance';
+import instanceChart from '../../services/chart/instance';
 
 const logger = new Logger('following/delete');
 
@@ -41,6 +44,30 @@ export default async function(follower: IUser, followee: IUser) {
 	});
 	//#endregion
 
+	//#region Update instance stats
+	if (isRemoteUser(follower) && isLocalUser(followee)) {
+		registerOrFetchInstanceDoc(follower.host).then(i => {
+			Instance.update({ _id: i._id }, {
+				$inc: {
+					followingCount: -1
+				}
+			});
+
+			instanceChart.updateFollowing(i.host, false);
+		});
+	} else if (isLocalUser(follower) && isRemoteUser(followee)) {
+		registerOrFetchInstanceDoc(followee.host).then(i => {
+			Instance.update({ _id: i._id }, {
+				$inc: {
+					followersCount: -1
+				}
+			});
+
+			instanceChart.updateFollowers(i.host, false);
+		});
+	}
+	//#endregion
+
 	perUserFollowingChart.update(follower, followee, false);
 
 	// Publish unfollow event
diff --git a/src/services/note/create.ts b/src/services/note/create.ts
index 0b71a9670c..126d698b08 100644
--- a/src/services/note/create.ts
+++ b/src/services/note/create.ts
@@ -24,6 +24,7 @@ import isQuote from '../../misc/is-quote';
 import notesChart from '../../services/chart/notes';
 import perUserNotesChart from '../../services/chart/per-user-notes';
 import activeUsersChart from '../../services/chart/active-users';
+import instanceChart from '../../services/chart/instance';
 
 import { erase, concat } from '../../prelude/array';
 import insertNoteUnread from './unread';
@@ -229,8 +230,7 @@ export default async (user: IUser, data: Option, silent = false) => new Promise<
 				}
 			});
 
-			// TODO
-			//perInstanceChart.newNote();
+			instanceChart.updateNote(i.host, true);
 		});
 	}
 
diff --git a/src/services/note/delete.ts b/src/services/note/delete.ts
index 8e8c20bfce..2b797545ed 100644
--- a/src/services/note/delete.ts
+++ b/src/services/note/delete.ts
@@ -1,5 +1,5 @@
 import Note, { INote } from '../../models/note';
-import { IUser, isLocalUser } from '../../models/user';
+import { IUser, isLocalUser, isRemoteUser } from '../../models/user';
 import { publishNoteStream } from '../stream';
 import renderDelete from '../../remote/activitypub/renderer/delete';
 import { renderActivity } from '../../remote/activitypub/renderer';
@@ -12,6 +12,9 @@ import config from '../../config';
 import NoteUnread from '../../models/note-unread';
 import read from './read';
 import DriveFile from '../../models/drive-file';
+import { registerOrFetchInstanceDoc } from '../register-or-fetch-instance-doc';
+import Instance from '../../models/instance';
+import instanceChart from '../../services/chart/instance';
 
 /**
  * 投稿を削除します。
@@ -91,4 +94,16 @@ export default async function(user: IUser, note: INote) {
 	// 統計を更新
 	notesChart.update(note, false);
 	perUserNotesChart.update(user, note, false);
+
+	if (isRemoteUser(user)) {
+		registerOrFetchInstanceDoc(user.host).then(i => {
+			Instance.update({ _id: i._id }, {
+				$inc: {
+					notesCount: -1
+				}
+			});
+
+			instanceChart.updateNote(i.host, false);
+		});
+	}
 }