'use strict';

import ObserveModelMixin from '../ObserveModelMixin';
import React from 'react';
import createReactClass from 'create-react-class';
import parseCustomMarkdownToReact from '../Custom/parseCustomMarkdownToReact';
import PropTypes from 'prop-types';
import sendFeedback from '../../Models/sendFeedback.js';
import Styles from './feedback-form.scss';
import Icon from "../Icon.jsx";
import classNames from "classnames";

const FeedbackForm = createReactClass({
    displayName: 'FeedbackForm',
    mixins: [ObserveModelMixin],

    propTypes: {
        viewState: PropTypes.object.isRequired
    },

    getInitialState() {
        return {
            isSending: false,
            sendShareURL: true,
            name: '',
            email: '',
            comment: ''
        };
    },

    onDismiss() {
        this.props.viewState.feedbackFormIsVisible = false;
        this.setState(this.getInitialState());
    },

    onSubmit(evt) {
        evt.preventDefault();

        if (this.state.comment.length > 0) {
            this.setState({
                isSending: true
            });

            // submit form
            sendFeedback({
                terria: this.props.viewState.terria,
                name: this.state.name,
                email: this.state.email,
                sendShareURL: this.state.sendShareURL,
                comment: this.state.comment
            }).then(succeeded => {
                if (succeeded) {
                    this.setState({
                        isSending: false,
                        comment: ''
                    });
                    this.props.viewState.feedbackFormIsVisible = false;
                } else {
                    this.setState({
                        isSending: false
                    });
                }
            });
        }

        return false;
    },

    handleChange(e) {
        this.setState({
            [e.target.getAttribute('name')]: e.target.value
        });
    },

    changeSendShareUrl(e) {
        this.setState({
            sendShareURL: !this.state.sendShareURL
        });
    },

    render() {
        const preamble = parseCustomMarkdownToReact(this.props.viewState.terria.configParameters.feedbackPreamble || 'We would love to hear from you!');
        const feedbackFormClassNames = classNames(Styles.form, {
            [Styles.isOpen]: this.props.viewState.feedbackFormIsVisible
        });
        return (
            <div className='feedback__inner'>
                <div className={feedbackFormClassNames}>
                    <div className={Styles.header}>
                        <h4 className={Styles.title}>Feedback</h4>
                        <button className={Styles.btnClose} onClick={this.onDismiss} title='close feedback'>
                            <Icon glyph={Icon.GLYPHS.close} />
                        </button>
                    </div>
                    <form onSubmit={this.onSubmit}>
                        <div className={Styles.description}>{preamble}</div>
                        <label className={Styles.label}>Your name (optional)</label>
                        <input type="text" name="name" className={Styles.field} value={this.state.name} onChange={this.handleChange} />
                        <label className={Styles.label}>Email address (optional)<br /><em>We can&#39;t follow up without it!</em></label>
                        <input type="text" name="email" className={Styles.field} value={this.state.email} onChange={this.handleChange} />
                        <label className={Styles.label}>Comment or question</label>
                        <textarea className={Styles.field} name="comment" value={this.state.comment} onChange={this.handleChange} />
                        <div className={Styles.shareUrl}>
                            <button onClick={this.changeSendShareUrl} type='button'>
                                {this.state.sendShareURL ? <Icon glyph={Icon.GLYPHS.checkboxOn} /> : <Icon glyph={Icon.GLYPHS.checkboxOff} />}
                                Share my map view with {this.props.viewState.terria.appName} developers<br />
                                <small>This helps us to troubleshoot issues by letting us see what you&#39;re seeing</small>
                            </button>
                        </div>
                        <div className={Styles.action}>
                            <button type="button" className={Styles.btnCancel} onClick={this.onDismiss}>Cancel</button>
                            <button type="submit" className={Styles.btnSubmit} disabled={this.state.isSending}>{this.state.isSending ? 'Sending...' : 'Send'}</button>
                        </div>
                    </form>
                </div>
            </div>
        );
    },
});

module.exports = FeedbackForm;