import { User } from '../models/user';
import { UserProfile } from '../types/user';

const UPDATE_USER_PROFILE_FIELDS = ['id', 'email', 'secondaryEmail', 'password', 'title', 'firstName', 'lastName', 'primaryTelephone', 'jobTitle', 'graduationDate', 'organisationName', 'organisationId', 'isEmailVerified'];
/**
 * @attention
 * The `externalUserId` property is added only to the "create profile" property list,
 * because it's not considered by Membership API on "profile update". It requires
 * a separate call to a "update externalUserId" specific endpoint.
 *
 * Follow up story to apply externalUserId on profile updating:
 * https://financialtimes.atlassian.net/browse/ENT-978
 */
const NEW_USER_PROFILE_FIELDS = ['email', 'password', 'secondaryEmail', 'title', 'firstName', 'lastName', 'primaryTelephone', 'jobTitle', 'graduationDate', 'allowanceSize', 'source', 'organisationName', 'isEmailVerified', 'externalUserId'];
const HOME_ADDRESS_FIELDS = ['country', 'line1', 'line2', 'townCity', 'state', 'postcode'];

export function verifyNewUserFields(user: User) {
	if (user.email == null) {
		throw new Error('Email cannot be null');
	}

	if (user.password == null) {
		throw new Error('Password cannot be null');
	}

	if (user.country == null) {
		throw new Error('Country cannot be null');
	}
}

export function getNewUserRequestBody(user: User): Partial<UserProfile> {
	verifyNewUserFields(user);

	const profile: Partial<UserProfile> = extractParameters(NEW_USER_PROFILE_FIELDS, user);
	const homeAddress = extractParameters(HOME_ADDRESS_FIELDS, user);
	homeAddress.postcode = user.postcode;
	profile.homeAddress = homeAddress;

	const demographics = extractDemographics(user);
	if (Object.keys(demographics).length > 0) {
		profile.demographics = demographics;
	}

	return profile;
}

export function verifyUpdateUserFields(user: User) {
	if (user.id == null) {
		throw new Error('User ID cannot be null');
	}

	if (user.email == null) {
		throw new Error('Email cannot be null');
	}

	if (user.country == null) {
		throw new Error('Country cannot be null');
	}
}

export function getUpdateUserRequestBody(user: User): Partial<UserProfile> {
	verifyUpdateUserFields(user);

	const profile: Partial<UserProfile> = extractParameters(UPDATE_USER_PROFILE_FIELDS, user);

	const homeAddress = extractParameters(HOME_ADDRESS_FIELDS, user);
	homeAddress.postcode = user.postcode;
	profile.homeAddress = homeAddress;

	const demographics = extractDemographics(user);
	if (Object.keys(demographics).length > 0) {
		profile.demographics = demographics;
	}

	return profile;
}

export function extractDemographics(user: User) {
	const demographics:any = {};
	if (user.industry) {
		demographics.industry = { code: user.industry };
	}

	if (user.responsibility) {
		demographics.responsibility = { code: user.responsibility };
	}

	if (user.position) {
		demographics.position = { code: user.position };
	}

	return demographics;
}


export function extractParameters(parameters: Array<String>, user: User) {
	const obj:any = {};
	parameters.forEach(
		// @ts-ignore
		(optionalParam) => user[optionalParam] != null ? obj[optionalParam] = user[optionalParam] : undefined);

	return obj;
}