import { getConfig, getHost } from "@config";
import {
	BaseEntity,
	Column,
	CreateDateColumn,
	Entity,
	PrimaryGeneratedColumn,
	UpdateDateColumn,
} from "typeorm";
import { APIAccount } from "~types/entities/account";

const config = getConfig();

/**
 * Stores local and remote users
 */
@Entity({
	name: "users",
})
export class User extends BaseEntity {
	@PrimaryGeneratedColumn("uuid")
	id!: string;

	@Column("varchar", {
		unique: true,
	})
	username!: string;

	@Column("varchar", {
		unique: true,
	})
	display_name!: string;

	@Column("varchar")
	password!: string;

	@Column("varchar", {
		unique: true,
	})
	email!: string;

	@Column("varchar", {
		default: "",
	})
	bio!: string;

	@CreateDateColumn()
	created_at!: Date;

	@UpdateDateColumn()
	updated_at!: Date;

	@Column("varchar")
	public_key!: string;

	@Column("varchar")
	private_key!: string;

	async generateKeys(): Promise<void> {
		// openssl genrsa -out private.pem 2048
		// openssl rsa -in private.pem -outform PEM -pubout -out public.pem

		const keys = await crypto.subtle.generateKey(
			{
				name: "RSASSA-PKCS1-v1_5",
				hash: "SHA-256",
				modulusLength: 4096,
				publicExponent: new Uint8Array([0x01, 0x00, 0x01]),
			},
			true,
			["sign", "verify"]
		);

		const privateKey = btoa(
			String.fromCharCode.apply(null, [
				...new Uint8Array(
					await crypto.subtle.exportKey("pkcs8", keys.privateKey)
				),
			])
		);
		const publicKey = btoa(
			String.fromCharCode(
				...new Uint8Array(
					await crypto.subtle.exportKey("spki", keys.publicKey)
				)
			)
		);

		// Add header, footer and newlines later on
		// These keys are PEM encrypted
		this.private_key = privateKey;
		this.public_key = publicKey;
	}

	// eslint-disable-next-line @typescript-eslint/require-await
	async toAPI(): Promise<APIAccount> {
		return {
			acct: `@${this.username}@${getHost()}`,
			avatar: "",
			avatar_static: "",
			bot: false,
			created_at: this.created_at.toISOString(),
			display_name: "",
			followers_count: 0,
			following_count: 0,
			group: false,
			header: "",
			header_static: "",
			id: this.id,
			locked: false,
			moved: null,
			noindex: false,
			note: this.bio,
			suspended: false,
			url: `${config.http.base_url}/@${this.username}`,
			username: this.username,
			emojis: [],
			fields: [],
			limited: false,
			source: undefined,
			statuses_count: 0,
			discoverable: undefined,
			role: undefined,
			mute_expires_at: undefined,
		};
	}
}