import window from 'window';
import _ from '_';
import ko from 'ko';

import {
	LoginSignMeType,
	LoginSignMeTypeAsString,
	ClientSideKeyName,
	StorageResultType,
	Magics,
	Notification
} from 'Common/Enums';

import {
	trim, inArray, pInt,
	convertLangName, triggerAutocompleteInputChange
} from 'Common/Utils';

import {socialFacebook, socialGoogle, socialTwitter} from 'Common/Links';
import {getNotification, getNotificationFromResponse, reload as translatorReload} from 'Common/Translator';

import * as Plugins from 'Common/Plugins';

import AppStore from 'Stores/User/App';
import LanguageStore from 'Stores/Language';

import * as Settings from 'Storage/Settings';
import * as Local from 'Storage/Client';

import Remote from 'Remote/User/Ajax';

import {getApp} from 'Helper/Apps/User';

import {view, command, ViewType, routeOff, showScreenPopup} from 'Knoin/Knoin';
import {AbstractViewNext} from 'Knoin/AbstractViewNext';

@view({
	name: 'View/User/Login',
	type: ViewType.Center,
	templateID: 'Login'
})
class LoginUserView extends AbstractViewNext
{
	constructor() {
		super();

		this.welcome = ko.observable(!!Settings.settingsGet('UseLoginWelcomePage'));

		this.email = ko.observable('');
		this.password = ko.observable('');
		this.signMe = ko.observable(false);

		this.additionalCode = ko.observable('');
		this.additionalCode.error = ko.observable(false);
		this.additionalCode.errorAnimation = ko.observable(false).extend({falseTimeout: 500});
		this.additionalCode.focused = ko.observable(false);
		this.additionalCode.visibility = ko.observable(false);
		this.additionalCodeSignMe = ko.observable(false);

		this.logoImg = trim(Settings.settingsGet('LoginLogo'));
		this.logoPowered = !!Settings.settingsGet('LoginPowered');
		this.loginDescription = trim(Settings.settingsGet('LoginDescription'));

		this.mobile = !!Settings.appSettingsGet('mobile');
		this.mobileDevice = !!Settings.appSettingsGet('mobileDevice');

		this.forgotPasswordLinkUrl = Settings.appSettingsGet('forgotPasswordLinkUrl');
		this.registrationLinkUrl = Settings.appSettingsGet('registrationLinkUrl');

		this.emailError = ko.observable(false);
		this.passwordError = ko.observable(false);

		this.emailErrorAnimation = ko.observable(false).extend({falseTimeout: 500});
		this.passwordErrorAnimation = ko.observable(false).extend({falseTimeout: 500});

		this.formHidden = ko.observable(false);

		this.formError = ko.computed(
			() => this.emailErrorAnimation() || this.passwordErrorAnimation() ||
				(this.additionalCode.visibility() && this.additionalCode.errorAnimation())
		);

		this.emailFocus = ko.observable(false);
		this.passwordFocus = ko.observable(false);
		this.submitFocus = ko.observable(false);

		this.email.subscribe(() => {
			this.emailError(false);
			this.additionalCode('');
			this.additionalCode.visibility(false);
		});

		this.password.subscribe(() => {
			this.passwordError(false);
		});

		this.additionalCode.subscribe(() => {
			this.additionalCode.error(false);
		});

		this.additionalCode.visibility.subscribe(() => {
			this.additionalCode.error(false);
		});

		this.emailError.subscribe((bV) => {
			this.emailErrorAnimation(!!bV);
		});

		this.passwordError.subscribe((bV) => {
			this.passwordErrorAnimation(!!bV);
		});

		this.additionalCode.error.subscribe((bV) => {
			this.additionalCode.errorAnimation(!!bV);
		});

		this.submitRequest = ko.observable(false);
		this.submitError = ko.observable('');
		this.submitErrorAddidional = ko.observable('');

		this.submitError.subscribe((value) => {
			if ('' === value)
			{
				this.submitErrorAddidional('');
			}
		});

		this.allowLanguagesOnLogin = AppStore.allowLanguagesOnLogin;

		this.langRequest = ko.observable(false);
		this.language = LanguageStore.language;
		this.languages = LanguageStore.languages;

		this.bSendLanguage = false;

		this.languageFullName = ko.computed(
			() => convertLangName(this.language())
		);

		this.signMeType = ko.observable(LoginSignMeType.Unused);

		this.signMeType.subscribe((iValue) => {
			this.signMe(LoginSignMeType.DefaultOn === iValue);
		});

		this.signMeVisibility = ko.computed(
			() => LoginSignMeType.Unused !== this.signMeType()
		);

		this.facebookLoginEnabled = ko.observable(false);
		this.googleLoginEnabled = ko.observable(false);
		this.googleFastLoginEnabled = ko.observable(false);
		this.twitterLoginEnabled = ko.observable(false);

		this.socialLoginEnabled = ko.computed(() => {
			const
				bF = this.facebookLoginEnabled(),
				bG = this.googleLoginEnabled(),
				bT = this.twitterLoginEnabled();

			return bF || bG || bT;
		});

		if (Settings.settingsGet('AdditionalLoginError') && !this.submitError())
		{
			this.submitError(Settings.settingsGet('AdditionalLoginError'));
		}
	}

	@command((self) => !self.submitRequest() && self.facebookLoginEnabled())
	facebookCommand() {
		window.open(socialFacebook(), 'Facebook', 'left=200,top=100,width=500,height=500,menubar=no,status=no,resizable=yes,scrollbars=yes');
		return true;
	}

	@command((self) => !self.submitRequest() && self.googleLoginEnabled())
	googleCommand() {
		window.open(socialGoogle(), 'Google', 'left=200,top=100,width=550,height=550,menubar=no,status=no,resizable=yes,scrollbars=yes');
		return true;
	}

	@command((self) => !self.submitRequest() && self.googleFastLoginEnabled())
	googleFastCommand() {
		window.open(socialGoogle(true), 'Google', 'left=200,top=100,width=550,height=550,menubar=no,status=no,resizable=yes,scrollbars=yes');
		return true;
	}

	@command((self) => !self.submitRequest() && self.twitterLoginEnabled())
	twitterCommand() {
		window.open(socialTwitter(), 'Twitter', 'left=200,top=100,width=500,height=500,menubar=no,status=no,resizable=yes,scrollbars=yes');
		return true;
	}

	@command((self) => !self.submitRequest())
	submitCommand() {

		triggerAutocompleteInputChange();

		this.emailError(false);
		this.passwordError(false);

		this.emailError('' === trim(this.email()));
		this.passwordError('' === trim(this.password()));

		if (this.additionalCode.visibility())
		{
			this.additionalCode.error(false);
			this.additionalCode.error('' === trim(this.additionalCode()));
		}

		if (this.emailError() || this.passwordError() ||
			(this.additionalCode.visibility() && this.additionalCode.error()))
		{
			switch (true)
			{
				case this.emailError():
					this.emailFocus(true);
					break;
				case this.passwordError():
					this.passwordFocus(true);
					break;
				case this.additionalCode.visibility() && this.additionalCode.error():
					this.additionalCode.focused(true);
					break;
				// no default
			}

			return false;
		}

		let
			pluginResultCode = 0,
			pluginResultMessage = '';

		const
			fSubmitResult = (iResultCode, sResultMessage) => {
				pluginResultCode = iResultCode || 0;
				pluginResultMessage = sResultMessage || '';
			};

		Plugins.runHook('user-login-submit', [fSubmitResult]);
		if (0 < pluginResultCode)
		{
			this.submitError(getNotification(pluginResultCode));
			return false;
		}
		else if ('' !== pluginResultMessage)
		{
			this.submitError(pluginResultMessage);
			return false;
		}

		this.submitRequest(true);

		const
			fLoginRequest = (sLoginPassword) => {

				Remote.login((sResult, oData) => {

					if (StorageResultType.Success === sResult && oData && 'Login' === oData.Action)
					{
						if (oData.Result)
						{
							if (oData.TwoFactorAuth)
							{
								this.additionalCode('');
								this.additionalCode.visibility(true);
								this.submitRequest(false);

								_.delay(() => this.additionalCode.focused(true), Magics.Time100ms);
							}
							else if (oData.Admin)
							{
								getApp().redirectToAdminPanel();
							}
							else
							{
								getApp().loginAndLogoutReload(false);
							}
						}
						else if (oData.ErrorCode)
						{
							this.submitRequest(false);
							if (-1 < inArray(oData.ErrorCode, [Notification.InvalidInputArgument]))
							{
								oData.ErrorCode = Notification.AuthError;
							}

							this.submitError(getNotificationFromResponse(oData));

							if ('' === this.submitError())
							{
								this.submitError(getNotification(Notification.UnknownError));
							}
							else if (oData.ErrorMessageAdditional)
							{
								this.submitErrorAddidional(oData.ErrorMessageAdditional);
							}
						}
						else
						{
							this.submitRequest(false);
						}
					}
					else
					{
						this.submitRequest(false);
						this.submitError(getNotification(Notification.UnknownError));
					}

				}, this.email(), '', sLoginPassword, !!this.signMe(),
					this.bSendLanguage ? this.language() : '',
					this.additionalCode.visibility() ? this.additionalCode() : '',
					this.additionalCode.visibility() ? !!this.additionalCodeSignMe() : false
				);

				Local.set(ClientSideKeyName.LastSignMe, this.signMe() ? '-1-' : '-0-');

			};

		fLoginRequest(this.password());

		return true;
	}

	displayMainForm() {
		this.welcome(false);
	}

	onShow() {
		routeOff();
	}

	onShowWithDelay() {
		if ('' !== this.email() && '' !== this.password())
		{
			this.submitFocus(true);
		}
		else if ('' === this.email())
		{
			this.emailFocus(true);
		}
		else if ('' === this.password())
		{
			this.passwordFocus(true);
		}
		else
		{
			this.emailFocus(true);
		}
	}

	onHide() {
		this.submitFocus(false);
		this.emailFocus(false);
		this.passwordFocus(false);
	}

	onBuild() {
		const
			signMeLocal = Local.get(ClientSideKeyName.LastSignMe),
			signMe = (Settings.settingsGet('SignMe') || 'unused').toLowerCase(),
			jsHash = Settings.appSettingsGet('jsHash'),
			fSocial = (iErrorCode) => {
				iErrorCode = pInt(iErrorCode);
				if (0 === iErrorCode)
				{
					this.submitRequest(true);
					getApp().loginAndLogoutReload(false);
				}
				else
				{
					this.submitError(getNotification(iErrorCode));
				}
			};

		this.facebookLoginEnabled(!!Settings.settingsGet('AllowFacebookSocial'));
		this.twitterLoginEnabled(!!Settings.settingsGet('AllowTwitterSocial'));
		this.googleLoginEnabled(!!Settings.settingsGet('AllowGoogleSocial') && !!Settings.settingsGet('AllowGoogleSocialAuth'));
		this.googleFastLoginEnabled(!!Settings.settingsGet('AllowGoogleSocial') && !!Settings.settingsGet('AllowGoogleSocialAuthFast'));

		switch (signMe)
		{
			case LoginSignMeTypeAsString.DefaultOff:
			case LoginSignMeTypeAsString.DefaultOn:

				this.signMeType(LoginSignMeTypeAsString.DefaultOn === signMe ?
					LoginSignMeType.DefaultOn : LoginSignMeType.DefaultOff);

				switch (signMeLocal)
				{
					case '-1-':
						this.signMeType(LoginSignMeType.DefaultOn);
						break;
					case '-0-':
						this.signMeType(LoginSignMeType.DefaultOff);
						break;
					// no default
				}

				break;
			case LoginSignMeTypeAsString.Unused:
			default:
				this.signMeType(LoginSignMeType.Unused);
				break;
		}

		this.email(AppStore.devEmail);
		this.password(AppStore.devPassword);

		if (this.googleLoginEnabled() || this.googleFastLoginEnabled())
		{
			window['rl_' + jsHash + '_google_login_service'] = fSocial;
		}

		if (this.facebookLoginEnabled())
		{
			window['rl_' + jsHash + '_facebook_login_service'] = fSocial;
		}

		if (this.twitterLoginEnabled())
		{
			window['rl_' + jsHash + '_twitter_login_service'] = fSocial;
		}

		_.delay(() => {

			LanguageStore.language.subscribe((value) => {

				this.langRequest(true);

				translatorReload(false, value).then(() => {
					this.langRequest(false);
					this.bSendLanguage = true;
				}, () => {
					this.langRequest(false);
				});

			});

		}, Magics.Time50ms);

		triggerAutocompleteInputChange(true);
	}

	submitForm() {
		this.submitCommand();
	}

	selectLanguage() {
		showScreenPopup(require('View/Popup/Languages'), [
			this.language, this.languages(), LanguageStore.userLanguage()
		]);
	}

	selectLanguageOnTab(bShift) {
		if (!bShift)
		{
			_.delay(() => {
				this.emailFocus(true);
			}, Magics.Time50ms);

			return false;
		}

		return true;
	}
}

export {LoginUserView, LoginUserView as default};