1 files changed, 430 insertions, 0 deletions
diff --git a/src/util/entities/Member.ts b/src/util/entities/Member.ts
new file mode 100644
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+++ b/src/util/entities/Member.ts
@@ -0,0 +1,430 @@
+import { PublicUser, User } from "./User";
+import { Message } from "./Message";
+import {
+	BeforeInsert,
+	BeforeUpdate,
+	Column,
+	Entity,
+	Index,
+	JoinColumn,
+	JoinTable,
+	ManyToMany,
+	ManyToOne,
+	PrimaryGeneratedColumn,
+	RelationId,
+} from "typeorm";
+import { Guild } from "./Guild";
+import { Config, emitEvent, BannedWords, FieldErrors } from "../util";
+import {
+	GuildCreateEvent,
+	GuildDeleteEvent,
+	GuildMemberAddEvent,
+	GuildMemberRemoveEvent,
+	GuildMemberUpdateEvent,
+	MessageCreateEvent,
+
+} from "../interfaces";
+import { HTTPError } from "lambert-server";
+import { Role } from "./Role";
+import { BaseClassWithoutId } from "./BaseClass";
+import { Ban, PublicGuildRelations } from ".";
+import { DiscordApiErrors } from "../util/Constants";
+
+export const MemberPrivateProjection: (keyof Member)[] = [
+	"id",
+	"guild",
+	"guild_id",
+	"deaf",
+	"joined_at",
+	"last_message_id",
+	"mute",
+	"nick",
+	"pending",
+	"premium_since",
+	"roles",
+	"settings",
+	"user",
+];
+
+@Entity("members")
+@Index(["id", "guild_id"], { unique: true })
+export class Member extends BaseClassWithoutId {
+	@PrimaryGeneratedColumn()
+	index: string;
+
+	@Column()
+	@RelationId((member: Member) => member.user)
+	id: string;
+
+	@JoinColumn({ name: "id" })
+	@ManyToOne(() => User, {
+		onDelete: "CASCADE",
+	})
+	user: User;
+
+	@Column()
+	@RelationId((member: Member) => member.guild)
+	guild_id: string;
+
+	@JoinColumn({ name: "guild_id" })
+	@ManyToOne(() => Guild, {
+		onDelete: "CASCADE",
+	})
+	guild: Guild;
+
+	@Column({ nullable: true })
+	nick?: string;
+
+	@JoinTable({
+		name: "member_roles",
+		joinColumn: { name: "index", referencedColumnName: "index" },
+		inverseJoinColumn: {
+			name: "role_id",
+			referencedColumnName: "id",
+		},
+	})
+	@ManyToMany(() => Role, { cascade: true })
+	roles: Role[];
+
+	@Column()
+	joined_at: Date;
+
+	@Column({ type: "bigint", nullable: true })
+	premium_since?: number;
+
+	@Column()
+	deaf: boolean;
+
+	@Column()
+	mute: boolean;
+
+	@Column()
+	pending: boolean;
+
+	@Column({ type: "simple-json", select: false })
+	settings: UserGuildSettings;
+
+	@Column({ nullable: true })
+	last_message_id?: string;
+
+	/**
+	@JoinColumn({ name: "id" })
+	@ManyToOne(() => User, {
+		onDelete: "DO NOTHING",
+	// do not auto-kick force-joined members just because their joiners left the server
+	}) **/
+	@Column({ nullable: true })
+	joined_by?: string;
+
+	// TODO: add this when we have proper read receipts
+	// @Column({ type: "simple-json" })
+	// read_state: ReadState;
+
+	@BeforeUpdate()
+	@BeforeInsert()
+	validate() {
+		if (this.nick) {
+			this.nick = this.nick.split("\n").join("");
+			this.nick = this.nick.split("\t").join("");
+			if (BannedWords.find(this.nick)) throw FieldErrors({ nick: { message: "Bad nickname", code: "INVALID_NICKNAME" } });
+		}
+	}
+
+	static async IsInGuildOrFail(user_id: string, guild_id: string) {
+		if (await Member.count({ where: { id: user_id, guild: { id: guild_id } } })) return true;
+		throw new HTTPError("You are not member of this guild", 403);
+	}
+
+	static async removeFromGuild(user_id: string, guild_id: string) {
+		const guild = await Guild.findOneOrFail({ select: ["owner_id"], where: { id: guild_id } });
+		if (guild.owner_id === user_id) throw new Error("The owner cannot be removed of the guild");
+		const member = await Member.findOneOrFail({ where: { id: user_id, guild_id }, relations: ["user"] });
+
+		// use promise all to execute all promises at the same time -> save time
+		return Promise.all([
+			Member.delete({
+				id: user_id,
+				guild_id,
+			}),
+			Guild.decrement({ id: guild_id }, "member_count", -1),
+
+			emitEvent({
+				event: "GUILD_DELETE",
+				data: {
+					id: guild_id,
+				},
+				user_id: user_id,
+			} as GuildDeleteEvent),
+			emitEvent({
+				event: "GUILD_MEMBER_REMOVE",
+				data: { guild_id, user: member.user },
+				guild_id,
+			} as GuildMemberRemoveEvent),
+		]);
+	}
+
+	static async addRole(user_id: string, guild_id: string, role_id: string) {
+		const [member, role] = await Promise.all([
+			// @ts-ignore
+			Member.findOneOrFail({
+				where: { id: user_id, guild_id },
+				relations: ["user", "roles"], // we don't want to load  the role objects just the ids
+				//@ts-ignore
+				select: ["index", "roles.id"],	// TODO fix type
+			}),
+			Role.findOneOrFail({ where: { id: role_id, guild_id }, select: ["id"] }),
+		]);
+		member.roles.push(Role.create({ id: role_id }));
+
+		await Promise.all([
+			member.save(),
+			emitEvent({
+				event: "GUILD_MEMBER_UPDATE",
+				data: {
+					guild_id,
+					user: member.user,
+					roles: member.roles.map((x) => x.id),
+				},
+				guild_id,
+			} as GuildMemberUpdateEvent),
+		]);
+	}
+
+	static async removeRole(user_id: string, guild_id: string, role_id: string) {
+		const [member] = await Promise.all([
+			// @ts-ignore
+			Member.findOneOrFail({
+				where: { id: user_id, guild_id },
+				relations: ["user", "roles"], // we don't want to load  the role objects just the ids
+				//@ts-ignore
+				select: ["roles.id", "index"], // TODO: fix type
+			}),
+			await Role.findOneOrFail({ where: { id: role_id, guild_id } }),
+		]);
+		member.roles = member.roles.filter((x) => x.id == role_id);
+
+		await Promise.all([
+			member.save(),
+			emitEvent({
+				event: "GUILD_MEMBER_UPDATE",
+				data: {
+					guild_id,
+					user: member.user,
+					roles: member.roles.map((x) => x.id),
+				},
+				guild_id,
+			} as GuildMemberUpdateEvent),
+		]);
+	}
+
+	static async changeNickname(user_id: string, guild_id: string, nickname: string) {
+		const member = await Member.findOneOrFail({
+			where: {
+				id: user_id,
+				guild_id,
+			},
+			relations: ["user"],
+		});
+		member.nick = nickname;
+
+		await Promise.all([
+			member.save(),
+
+			emitEvent({
+				event: "GUILD_MEMBER_UPDATE",
+				data: {
+					guild_id,
+					user: member.user,
+					nick: nickname,
+				},
+				guild_id,
+			} as GuildMemberUpdateEvent),
+		]);
+	}
+
+	static async addToGuild(user_id: string, guild_id: string) {
+		const user = await User.getPublicUser(user_id);
+		const isBanned = await Ban.count({ where: { guild_id, user_id } });
+		if (isBanned) {
+			throw DiscordApiErrors.USER_BANNED;
+		}
+		const { maxGuilds } = Config.get().limits.user;
+		const guild_count = await Member.count({ where: { id: user_id } });
+		if (guild_count >= maxGuilds) {
+			throw new HTTPError(`You are at the ${maxGuilds} server limit.`, 403);
+		}
+
+		const guild = await Guild.findOneOrFail({
+			where: {
+				id: guild_id,
+			},
+			relations: [...PublicGuildRelations, "system_channel"],
+		});
+
+		if (await Member.count({ where: { id: user.id, guild: { id: guild_id } } }))
+			throw new HTTPError("You are already a member of this guild", 400);
+
+		const member = {
+			id: user_id,
+			guild_id,
+			nick: undefined,
+			roles: [guild_id], // @everyone role
+			joined_at: new Date(),
+			premium_since: (new Date()).getTime(),
+			deaf: false,
+			mute: false,
+			pending: false,
+		};
+
+		await Promise.all([
+			Member.create({
+				...member,
+				roles: [Role.create({ id: guild_id })],
+				// read_state: {},
+				settings: {
+					guild_id: null,
+					mute_config: null,
+					mute_scheduled_events: false,
+					flags: 0,
+					hide_muted_channels: false,
+					notify_highlights: 0,
+					channel_overrides: {},
+					message_notifications: 0,
+					mobile_push: true,
+					muted: false,
+					suppress_everyone: false,
+					suppress_roles: false,
+					version: 0,
+				},
+				// Member.save is needed because else the roles relations wouldn't be updated
+			}).save(),
+			Guild.increment({ id: guild_id }, "member_count", 1),
+			emitEvent({
+				event: "GUILD_MEMBER_ADD",
+				data: {
+					...member,
+					user,
+					guild_id,
+				},
+				guild_id,
+			} as GuildMemberAddEvent),
+			emitEvent({
+				event: "GUILD_CREATE",
+				data: {
+					...guild,
+					members: [...guild.members, { ...member, user }],
+					member_count: (guild.member_count || 0) + 1,
+					guild_hashes: {},
+					guild_scheduled_events: [],
+					joined_at: member.joined_at,
+					presences: [],
+					stage_instances: [],
+					threads: [],
+				},
+				user_id,
+			} as GuildCreateEvent),
+		]);
+
+		if (guild.system_channel_id) {
+			// send welcome message
+			const message = Message.create({
+				type: 7,
+				guild_id: guild.id,
+				channel_id: guild.system_channel_id,
+				author: user,
+				timestamp: new Date(),
+				reactions: [],
+				attachments: [],
+				embeds: [],
+				sticker_items: [],
+				edited_timestamp: undefined,
+			});
+			await Promise.all([
+				message.save(),
+				emitEvent({ event: "MESSAGE_CREATE", channel_id: message.channel_id, data: message } as MessageCreateEvent)
+			]);
+		}
+	}
+}
+
+export interface ChannelOverride {
+	message_notifications: number;
+	mute_config: MuteConfig;
+	muted: boolean;
+	channel_id: string | null;
+}
+
+export interface UserGuildSettings {
+	// channel_overrides: {
+	// 	channel_id: string;
+	// 	message_notifications: number;
+	// 	mute_config: MuteConfig;
+	// 	muted: boolean;
+	// }[];
+
+	channel_overrides: {
+		[channel_id: string]: ChannelOverride;
+	} | null,
+	message_notifications: number;
+	mobile_push: boolean;
+	mute_config: MuteConfig | null;
+	muted: boolean;
+	suppress_everyone: boolean;
+	suppress_roles: boolean;
+	version: number;
+	guild_id: string | null;
+	flags: number;
+	mute_scheduled_events: boolean;
+	hide_muted_channels: boolean;
+	notify_highlights: 0;
+}
+
+export const DefaultUserGuildSettings: UserGuildSettings = {
+	channel_overrides: null,
+	message_notifications: 1,
+	flags: 0,
+	hide_muted_channels: false,
+	mobile_push: true,
+	mute_config: null,
+	mute_scheduled_events: false,
+	muted: false,
+	notify_highlights: 0,
+	suppress_everyone: false,
+	suppress_roles: false,
+	version: 453,	// ?
+	guild_id: null,
+};
+
+export interface MuteConfig {
+	end_time: number;
+	selected_time_window: number;
+}
+
+export type PublicMemberKeys =
+	| "id"
+	| "guild_id"
+	| "nick"
+	| "roles"
+	| "joined_at"
+	| "pending"
+	| "deaf"
+	| "mute"
+	| "premium_since";
+
+export const PublicMemberProjection: PublicMemberKeys[] = [
+	"id",
+	"guild_id",
+	"nick",
+	"roles",
+	"joined_at",
+	"pending",
+	"deaf",
+	"mute",
+	"premium_since",
+];
+
+// @ts-ignore
+export type PublicMember = Pick<Member, Omit<PublicMemberKeys, "roles">> & {
+	user: PublicUser;
+	roles: string[]; // only role ids not objects
+};