import CONSTRAINTS from "../shared/validation/constraints";
import ErrorTypes from "../utils/errorTypes";
import * as MailService from "../services/mailService";
import * as Resources from "../utils/resources";
import {handleJSONWithData, RequestData} from "../utils/resources";
import {normalizeString, parseInteger} from "../shared/utils/strings";
import {forConstraint} from "../shared/validation/validator";
import {Request, Response} from "express";
import {isString, Mail, MailId} from "../types";

const isValidId = forConstraint(CONSTRAINTS.id, false);

async function withValidMailId(data: RequestData): Promise<MailId> {
    if (!isString(data.id)) {
        throw {data: 'Missing mail id.', type: ErrorTypes.badRequest};
    }

    const id = normalizeString(data.id);

    if (!isValidId(id)) {
        throw {data: 'Invalid mail id.', type: ErrorTypes.badRequest};
    }

    return parseInteger(id) as MailId;
}

export const get = handleJSONWithData(async data => {
    const id = await withValidMailId(data);
    return await MailService.getMail(id);
});

async function doGetAll(req: Request): Promise<{ total: number, mails: Mail[] }> {
    const restParams = await Resources.getValidRestParams('list', null, req);
    return await MailService.getPendingMails(restParams);
}

export function getAll(req: Request, res: Response): void {
    doGetAll(req)
        .then(({total, mails}) => {
            res.set('X-Total-Count', total.toString(10));
            return Resources.success(res, mails);
        })
        .catch(err => Resources.error(res, err))
}

export const remove = handleJSONWithData(async data => {
    const id = await withValidMailId(data);
    await MailService.deleteMail(id);
});

export const resetFailures = handleJSONWithData(async data => {
    const id = await withValidMailId(data);
    return await MailService.resetFailures(id);
});