// Copyright (c) 2015-present Mattermost, Inc. All Rights Reserved.
// See License.txt for license information.

import React from 'react';

import Constants from 'utils/constants.jsx';
import * as Utils from 'utils/utils.jsx';

import AdminSettings from './admin_settings.jsx';
import DropdownSetting from './dropdown_setting.jsx';
import {FormattedMessage, FormattedHTMLMessage} from 'react-intl';
import SettingsGroup from './settings_group.jsx';
import TextSetting from './text_setting.jsx';

const PUSH_NOTIFICATIONS_OFF = 'off';
const PUSH_NOTIFICATIONS_MHPNS = 'mhpns';
const PUSH_NOTIFICATIONS_MTPNS = 'mtpns';
const PUSH_NOTIFICATIONS_CUSTOM = 'custom';

export default class PushSettings extends AdminSettings {
    constructor(props) {
        super(props);

        this.canSave = this.canSave.bind(this);

        this.handleAgreeChange = this.handleAgreeChange.bind(this);

        this.getConfigFromState = this.getConfigFromState.bind(this);

        this.renderSettings = this.renderSettings.bind(this);
    }

    canSave() {
        return this.state.pushNotificationServerType !== PUSH_NOTIFICATIONS_MHPNS || this.state.agree;
    }

    handleAgreeChange(e) {
        this.setState({
            agree: e.target.checked
        });
    }

    handleChange(id, value) {
        if (id === 'pushNotificationServerType') {
            this.setState({
                agree: false
            });

            if (value === PUSH_NOTIFICATIONS_MHPNS) {
                this.setState({
                    pushNotificationServer: Constants.MHPNS
                });
            } else if (value === PUSH_NOTIFICATIONS_MTPNS) {
                this.setState({
                    pushNotificationServer: Constants.MTPNS
                });
            }
        }

        super.handleChange(id, value);
    }

    getConfigFromState(config) {
        config.EmailSettings.SendPushNotifications = this.state.pushNotificationServerType !== PUSH_NOTIFICATIONS_OFF;
        config.EmailSettings.PushNotificationServer = this.state.pushNotificationServer.trim();
        config.EmailSettings.PushNotificationContents = this.state.pushNotificationContents;

        return config;
    }

    getStateFromConfig(config) {
        let pushNotificationServerType = PUSH_NOTIFICATIONS_CUSTOM;
        let agree = false;
        if (!config.EmailSettings.SendPushNotifications) {
            pushNotificationServerType = PUSH_NOTIFICATIONS_OFF;
        } else if (config.EmailSettings.PushNotificationServer === Constants.MHPNS &&
            global.window.mm_license.IsLicensed === 'true' && global.window.mm_license.MHPNS === 'true') {
            pushNotificationServerType = PUSH_NOTIFICATIONS_MHPNS;
            agree = true;
        } else if (config.EmailSettings.PushNotificationServer === Constants.MTPNS) {
            pushNotificationServerType = PUSH_NOTIFICATIONS_MTPNS;
        } else {
            pushNotificationServerType = PUSH_NOTIFICATIONS_CUSTOM;
        }

        let pushNotificationServer = config.EmailSettings.PushNotificationServer;
        if (pushNotificationServerType === PUSH_NOTIFICATIONS_MTPNS) {
            pushNotificationServer = Constants.MTPNS;
        } else if (pushNotificationServerType === PUSH_NOTIFICATIONS_MHPNS) {
            pushNotificationServer = Constants.MHPNS;
        }

        return {
            pushNotificationServerType,
            pushNotificationServer,
            pushNotificationContents: config.EmailSettings.PushNotificationContents,
            agree
        };
    }

    renderTitle() {
        return (
            <FormattedMessage
                id='admin.notifications.title'
                defaultMessage='Notification Settings'
            />
        );
    }

    renderSettings() {
        const pushNotificationServerTypes = [];
        pushNotificationServerTypes.push({value: PUSH_NOTIFICATIONS_OFF, text: Utils.localizeMessage('admin.email.pushOff', 'Do not send push notifications')});
        if (global.window.mm_license.IsLicensed === 'true' && global.window.mm_license.MHPNS === 'true') {
            pushNotificationServerTypes.push({value: PUSH_NOTIFICATIONS_MHPNS, text: Utils.localizeMessage('admin.email.mhpns', 'Use encrypted, production-quality HPNS connection to iOS and Android apps')});
        }
        pushNotificationServerTypes.push({value: PUSH_NOTIFICATIONS_MTPNS, text: Utils.localizeMessage('admin.email.mtpns', 'Use iOS and Android apps on iTunes and Google Play with TPNS')});
        pushNotificationServerTypes.push({value: PUSH_NOTIFICATIONS_CUSTOM, text: Utils.localizeMessage('admin.email.selfPush', 'Manually enter Push Notification Service location')});

        let sendHelpText = null;
        let pushServerHelpText = null;
        if (this.state.pushNotificationServerType === PUSH_NOTIFICATIONS_OFF) {
            sendHelpText = (
                <FormattedHTMLMessage
                    id='admin.email.pushOffHelp'
                    defaultMessage='Please see <a href="http://docs.mattermost.com/deployment/push.html#push-notifications-and-mobile-devices" target="_blank">documentation on push notifications</a> to learn more about setup options.'
                />
            );
        } else if (this.state.pushNotificationServerType === PUSH_NOTIFICATIONS_MHPNS) {
            pushServerHelpText = (
                <FormattedHTMLMessage
                    id='admin.email.mhpnsHelp'
                    defaultMessage='Download <a href="https://itunes.apple.com/us/app/mattermost/id984966508?mt=8" target="_blank">Mattermost iOS app</a> from iTunes. Download <a href="https://play.google.com/store/apps/details?id=com.mattermost.mattermost&hl=en" target="_blank">Mattermost Android app</a> from Google Play. Learn more about the <a href="http://docs.mattermost.com/deployment/push.html#hosted-push-notifications-service-hpns" target="_blank">Mattermost Hosted Push Notification Service</a>.'
                />
            );
        } else if (this.state.pushNotificationServerType === PUSH_NOTIFICATIONS_MTPNS) {
            pushServerHelpText = (
                <FormattedHTMLMessage
                    id='admin.email.mtpnsHelp'
                    defaultMessage='Download <a href="https://itunes.apple.com/us/app/mattermost/id984966508?mt=8" target="_blank">Mattermost iOS app</a> from iTunes. Download <a href="https://play.google.com/store/apps/details?id=com.mattermost.mattermost&hl=en" target="_blank">Mattermost Android app</a> from Google Play. Learn more about the <a href="http://docs.mattermost.com/deployment/push.html#test-push-notifications-service-tpns" target="_blank">Mattermost Test Push Notification Service</a>.'
                />
            );
        } else {
            pushServerHelpText = (
                <FormattedHTMLMessage
                    id='admin.email.easHelp'
                    defaultMessage='Learn more about compiling and deploying your own mobile apps from an <a href="http://docs.mattermost.com/deployment/push.html#enterprise-app-store-eas" target="_blank">Enterprise App Store</a>.'
                />
            );
        }

        let tosCheckbox;
        if (this.state.pushNotificationServerType === PUSH_NOTIFICATIONS_MHPNS) {
            tosCheckbox = (
                <div className='form-group'>
                    <div className='col-sm-4'/>
                    <div className='col-sm-8'>
                        <input
                            type='checkbox'
                            ref='agree'
                            checked={this.state.agree}
                            onChange={this.handleAgreeChange}
                        />
                        <FormattedHTMLMessage
                            id='admin.email.agreeHPNS'
                            defaultMessage=' I understand and accept the Mattermost Hosted Push Notification Service <a href="https://about.mattermost.com/hpns-terms/" target="_blank">Terms of Service</a> and <a href="https://about.mattermost.com/hpns-privacy/" target="_blank">Privacy Policy</a>.'
                        />
                    </div>
                </div>
            );
        }

        return (
            <SettingsGroup
                header={
                    <FormattedMessage
                        id='admin.notifications.push'
                        defaultMessage='Mobile Push'
                    />
                }
            >
                <DropdownSetting
                    id='pushNotificationServerType'
                    values={pushNotificationServerTypes}
                    label={
                        <FormattedMessage
                            id='admin.email.pushTitle'
                            defaultMessage='Enable Push Notifications: '
                        />
                    }
                    value={this.state.pushNotificationServerType}
                    onChange={this.handleChange}
                    helpText={sendHelpText}
                />
                {tosCheckbox}
                <TextSetting
                    id='pushNotificationServer'
                    label={
                        <FormattedMessage
                            id='admin.email.pushServerTitle'
                            defaultMessage='Push Notification Server:'
                        />
                    }
                    placeholder={Utils.localizeMessage('admin.email.pushServerEx', 'E.g.: "http://push-test.mattermost.com"')}
                    helpText={pushServerHelpText}
                    value={this.state.pushNotificationServer}
                    onChange={this.handleChange}
                    disabled={this.state.pushNotificationServerType !== PUSH_NOTIFICATIONS_CUSTOM}
                />
                <DropdownSetting
                    id='pushNotificationContents'
                    values={[
                        {value: 'generic', text: Utils.localizeMessage('admin.email.genericPushNotification', 'Send generic description with user and channel names')},
                        {value: 'full', text: Utils.localizeMessage('admin.email.fullPushNotification', 'Send full message snippet')}
                    ]}
                    label={
                        <FormattedMessage
                            id='admin.email.pushContentTitle'
                            defaultMessage='Push Notification Contents:'
                        />
                    }
                    value={this.state.pushNotificationContents}
                    onChange={this.handleChange}
                    disabled={this.state.pushNotificationServerType === PUSH_NOTIFICATIONS_OFF}
                    helpText={
                        <FormattedHTMLMessage
                            id='admin.email.pushContentDesc'
                            defaultMessage='Selecting "Send generic description with user and channel names" provides push notifications with generic messages, including names of users and channels but no specific details from the message text.<br /><br />
                            Selecting "Send full message snippet" sends excerpts from messages triggering notifications with specifics and may include confidential information sent in messages. If your Push Notification Service is outside your firewall, it is HIGHLY RECOMMENDED this option only be used with an "https" protocol to encrypt the connection.'
                        />
                    }
                />
            </SettingsGroup>
        );
    }
}