/* global gettext */
import React from 'react';
import FocusLock, { AutoFocusInside } from 'react-focus-lock';
import StringUtils from 'edx-ui-toolkit/js/utils/string-utils';

class EnterpriseLearnerPortalModal extends React.Component {
    constructor(props) {
        super(props);
        this.state = {
            isModalOpen: false,
        };

        this.openModal = this.openModal.bind(this);
        this.closeModal = this.closeModal.bind(this);
        this.handleModalBackdropClick = this.handleModalBackdropClick.bind(this);
        this.handleEsc = this.handleEsc.bind(this);
        this.handleLearnerPortalDashboardClick = this.handleLearnerPortalDashboardClick.bind(this);
    }

    componentDidMount() {
        // eslint-disable-next-line react/prop-types
        const storageKey = `enterprise_learner_portal_modal__${this.props.enterpriseCustomerUUID}`;
        const hasViewedModal = window.sessionStorage.getItem(storageKey);
        if (!hasViewedModal) {
            this.openModal();
            document.addEventListener('mousedown', this.handleModalBackdropClick, false);
            window.sessionStorage.setItem(storageKey, true);
            document.addEventListener('keydown', this.handleEsc, false);
        }
    }

    componentDidUpdate(prevProps, prevState) {
        if (this.state.isModalOpen !== prevState.isModalOpen) {
            if (this.state.isModalOpen) {
                // add a class here to prevent scrolling on anything that is not the modal
                document.body.classList.add('modal-open');
            } else {
                // remove the class to allow the dashboard content to scroll
                document.body.classList.remove('modal-open');
            }
        }
    }

    componentWillUnmount() {
    // remove the class to allow the dashboard content to scroll
        document.body.classList.remove('modal-open');
        document.removeEventListener('mousedown', this.handleModalBackdropClick, false);
        document.removeEventListener('keydown', this.handleEsc, false);
    }

    handleModalBackdropClick(e) {
        if (this.modalRef && this.modalRef.contains(e.target)) {
            // click is inside modal, don't close it
            return;
        }

        this.closeModal();
    }

    handleEsc(e) {
        const { key } = e;
        if (key === 'Escape') {
            window.analytics.track('edx.ui.enterprise.lms.dashboard.learner_portal_modal.closed', {
                // eslint-disable-next-line react/prop-types
                enterpriseUUID: this.props.enterpriseCustomerUUID,
                source: 'Escape',
            });
            this.closeModal();
        }
    }

    // eslint-disable-next-line react/sort-comp
    closeModal() {
        this.setState({
            isModalOpen: false,
        });
    }

    openModal() {
        window.analytics.track('edx.ui.enterprise.lms.dashboard.learner_portal_modal.opened', {
            // eslint-disable-next-line react/prop-types
            enterpriseUUID: this.props.enterpriseCustomerUUID,
        });
        this.setState({
            isModalOpen: true,
        });
    }

    getLearnerPortalUrl() {
        // eslint-disable-next-line react/prop-types
        const baseUrlWithSlug = `${this.props.enterpriseLearnerPortalBaseUrl}/${this.props.enterpriseCustomerSlug}`;
        return `${baseUrlWithSlug}?utm_source=lms_dashboard_modal`;
    }

    handleLearnerPortalDashboardClick(e) {
        e.preventDefault();
        window.analytics.track('edx.ui.enterprise.lms.dashboard.learner_portal_modal.dashboard_cta.clicked', {
            // eslint-disable-next-line react/prop-types
            enterpriseUUID: this.props.enterpriseCustomerUUID,
        });
        setTimeout(() => {
            window.location.href = this.getLearnerPortalUrl();
        }, 300);
    }

    render() {
        if (!this.state.isModalOpen) {
            return null;
        }

        return (
            <div
                role="dialog"
                className="modal-wrapper d-flex align-items-center justify-content-center"
            >
                <FocusLock>
                    <div
                        className="modal-content p-4 bg-white"
                        ref={(node) => { this.modalRef = node; }}
                    >
                        <div className="mb-3 font-weight-bold">
                            {StringUtils.interpolate(
                                gettext('You have access to the {enterpriseName} dashboard'),
                                {
                                    // eslint-disable-next-line react/prop-types
                                    enterpriseName: this.props.enterpriseCustomerName,
                                },
                            )}
                        </div>
                        <p>
                            {StringUtils.interpolate(
                                gettext('To access the courses available to you through {enterpriseName}, visit the {enterpriseName} dashboard.'),
                                {
                                    // eslint-disable-next-line react/prop-types
                                    enterpriseName: this.props.enterpriseCustomerName,
                                },
                            )}
                        </p>
                        <div className="mt-4 d-flex align-content-center justify-content-end">
                            {/* eslint-disable-next-line react/button-has-type */}
                            <button
                                className="btn-link mr-3"
                                onClick={() => {
                                    window.analytics.track('edx.ui.enterprise.lms.dashboard.learner_portal_modal.closed', {
                                        // eslint-disable-next-line react/prop-types
                                        enterpriseUUID: this.props.enterpriseCustomerUUID,
                                        source: 'Cancel button',
                                    });
                                    this.closeModal();
                                }}
                            >
                                {gettext('Cancel')}
                            </button>
                            <AutoFocusInside>
                                <a
                                    onClick={this.handleLearnerPortalDashboardClick}
                                    href={this.getLearnerPortalUrl()}
                                    className="btn btn-primary"
                                >
                                    {gettext('Go to dashboard')}
                                </a>
                            </AutoFocusInside>
                        </div>
                    </div>
                </FocusLock>
            </div>
        );
    }
}

// eslint-disable-next-line import/prefer-default-export
export { EnterpriseLearnerPortalModal };