import config from "config";
import Controller from "../Controller";
import {REQUIRE_ADMIN_MIDDLEWARE, REQUIRE_AUTH_MIDDLEWARE} from "../auth/AuthComponent";
import User from "../auth/models/User";
import {Request, Response} from "express";
import {NotFoundHttpError} from "../HttpError";
import Mail from "../Mail";
import {ACCOUNT_REVIEW_NOTICE_MAIL_TEMPLATE} from "../Mails";

export default class BackendController extends Controller {
    getRoutesPrefix(): string {
        return '/backend';
    }

    routes(): void {
        this.get('/', this.getIndex, 'backend', REQUIRE_AUTH_MIDDLEWARE, REQUIRE_ADMIN_MIDDLEWARE);
        if (User.isApprovalMode()) {
            this.get('/accounts-approval', this.getAccountApproval, 'accounts-approval', REQUIRE_AUTH_MIDDLEWARE, REQUIRE_ADMIN_MIDDLEWARE);
            this.post('/accounts-approval/approve/:id', this.postApproveAccount, 'approve-account', REQUIRE_AUTH_MIDDLEWARE, REQUIRE_ADMIN_MIDDLEWARE);
            this.post('/accounts-approval/reject/:id', this.postRejectAccount, 'reject-account', REQUIRE_AUTH_MIDDLEWARE, REQUIRE_ADMIN_MIDDLEWARE);
        }
    }

    public async getIndex(req: Request, res: Response): Promise<void> {
        res.render('backend/index', {
            approval_mode: User.isApprovalMode(),
            accounts_to_approve: User.isApprovalMode() ? await User.select().count() : 0,
        });
    }

    public async getAccountApproval(req: Request, res: Response): Promise<void> {
        const accounts = await User.select().where('approved', 0).with('mainEmail').get();
        res.render('backend/accounts_approval', {
            accounts: User.isApprovalMode() ? accounts : 0,
        });
    }

    public async postApproveAccount(req: Request, res: Response): Promise<void> {
        const account = await User.select().where('id', req.params.id).with('mainEmail').first();
        if (!account) throw new NotFoundHttpError('User', req.url);
        const email = await account.mainEmail.get();

        account.approved = true;
        await account.save();

        await new Mail(ACCOUNT_REVIEW_NOTICE_MAIL_TEMPLATE, {
            approved: true,
            link: config.get<string>('base_url') + Controller.route('auth'),
        }).send(email!.email!);

        req.flash('success', `Account successfully approved.`);
        res.redirectBack(Controller.route('accounts-approval'));
    }

    public async postRejectAccount(req: Request, res: Response): Promise<void> {
        const account = await User.select().where('id', req.params.id).with('mainEmail').first();
        if (!account) throw new NotFoundHttpError('User', req.url);
        const email = await account.mainEmail.get();

        await account.delete();

        await new Mail(ACCOUNT_REVIEW_NOTICE_MAIL_TEMPLATE, {
            approved: false,
        }).send(email!.email!);

        req.flash('success', `Account successfully deleted.`);
        res.redirectBack(Controller.route('accounts-approval'));
    }
}