feat: Webhook (#8457)

* feat: introduce webhook

* wip

* wip

* wip

* Update CHANGELOG.md

packages/backend/src/models/entities/webhook.ts

@@ -0,0 +1,73 @@
+import { PrimaryColumn, Entity, Index, JoinColumn, Column, ManyToOne } from 'typeorm';
+import { User } from './user.js';
+import { id } from '../id.js';
+
+export const webhookEventTypes = ['mention', 'unfollow', 'follow', 'followed', 'note', 'reply', 'renote', 'reaction'] as const;
+
+@Entity()
+export class Webhook {
+	@PrimaryColumn(id())
+	public id: string;
+
+	@Column('timestamp with time zone', {
+		comment: 'The created date of the Antenna.',
+	})
+	public createdAt: Date;
+
+	@Index()
+	@Column({
+		...id(),
+		comment: 'The owner ID.',
+	})
+	public userId: User['id'];
+
+	@ManyToOne(type => User, {
+		onDelete: 'CASCADE',
+	})
+	@JoinColumn()
+	public user: User | null;
+
+	@Column('varchar', {
+		length: 128,
+		comment: 'The name of the Antenna.',
+	})
+	public name: string;
+
+	@Index()
+	@Column('varchar', {
+		length: 128, array: true, default: '{}',
+	})
+	public on: (typeof webhookEventTypes)[number][];
+
+	@Column('varchar', {
+		length: 1024,
+	})
+	public url: string;
+
+	@Column('varchar', {
+		length: 1024,
+	})
+	public secret: string;
+
+	@Index()
+	@Column('boolean', {
+		default: true,
+	})
+	public active: boolean;
+
+	/**
+	 * 直近のリクエスト送信日時
+	 */
+	@Column('timestamp with time zone', {
+		nullable: true,
+	})
+	public latestSentAt: Date | null;
+
+	/**
+	 * 直近のリクエスト送信時のHTTPステータスコード
+	 */
+	@Column('integer', {
+		nullable: true,
+	})
+	public latestStatus: number | null;
+}