import React, { Component } from 'react';
import PropTypes from 'prop-types';
import classnames from 'classnames';
import { Trans, withTranslation } from 'react-i18next';

import { DHCP_STATUS_RESPONSE } from '../../../helpers/constants';
import Form from './Form';
import Leases from './Leases';
import StaticLeases from './StaticLeases/index';
import Card from '../../ui/Card';
import Accordion from '../../ui/Accordion';
import PageTitle from '../../ui/PageTitle';
import Loading from '../../ui/Loading';

class Dhcp extends Component {
    componentDidMount() {
        this.props.getDhcpStatus();
        this.props.getDhcpInterfaces();
    }

    handleFormSubmit = (values) => {
        if (values.interface_name) {
            this.props.setDhcpConfig(values);
        }
    };

    handleToggle = (config) => {
        this.props.toggleDhcp(config);
    };

    getToggleDhcpButton = () => {
        const {
            config, check, processingDhcp, processingConfig,
        } = this.props.dhcp;
        const otherDhcpFound = check?.otherServer
            && check.otherServer.found === DHCP_STATUS_RESPONSE.YES;
        const filledConfig = Object.keys(config)
            .every((key) => {
                if (key === 'enabled' || key === 'icmp_timeout_msec') {
                    return true;
                }

                return config[key];
            });

        if (config.enabled) {
            return (
                <button
                    type="button"
                    className="btn btn-standard mr-2 btn-gray"
                    onClick={() => this.props.toggleDhcp(config)}
                    disabled={processingDhcp || processingConfig}
                >
                    <Trans>dhcp_disable</Trans>
                </button>
            );
        }

        return (
            <button
                type="button"
                className="btn btn-standard mr-2 btn-success"
                onClick={() => this.handleToggle(config)}
                disabled={
                    !filledConfig || !check || otherDhcpFound || processingDhcp || processingConfig
                }
            >
                <Trans>dhcp_enable</Trans>
            </button>
        );
    };

    getActiveDhcpMessage = (t, check) => {
        const { found } = check.otherServer;

        if (found === DHCP_STATUS_RESPONSE.ERROR) {
            return (
                <div className="text-danger mb-2">
                    <Trans>dhcp_error</Trans>
                    <div className="mt-2 mb-2">
                        <Accordion label={t('error_details')}>
                            <span>{check.otherServer.error}</span>
                        </Accordion>
                    </div>
                </div>
            );
        }

        return (
            <div className="mb-2">
                {found === DHCP_STATUS_RESPONSE.YES ? (
                    <div className="text-danger">
                        <Trans>dhcp_found</Trans>
                    </div>
                ) : (
                    <div className="text-secondary">
                        <Trans>dhcp_not_found</Trans>
                    </div>
                )}
            </div>
        );
    };

    getDhcpWarning = (check) => {
        if (check.otherServer.found === DHCP_STATUS_RESPONSE.NO) {
            return '';
        }

        return (
            <div className="text-danger">
                <Trans>dhcp_warning</Trans>
            </div>
        );
    };

    getStaticIpWarning = (t, check, interfaceName) => {
        if (check.staticIP.static === DHCP_STATUS_RESPONSE.ERROR) {
            return <>
                <div className="text-danger mb-2">
                    <Trans>dhcp_static_ip_error</Trans>
                    <div className="mt-2 mb-2">
                        <Accordion label={t('error_details')}>
                            <span>{check.staticIP.error}</span>
                        </Accordion>
                    </div>
                </div>
                <hr className="mt-4 mb-4" />
            </>;
        }
        if (check.staticIP.static === DHCP_STATUS_RESPONSE.NO
            && check.staticIP.ip
            && interfaceName) {
            return <>
                <div className="text-secondary mb-2">
                    <Trans
                        components={[<strong key="0">example</strong>]}
                        values={{
                            interfaceName,
                            ipAddress: check.staticIP.ip,
                        }}
                    >
                        dhcp_dynamic_ip_found
                    </Trans>
                </div>
                <hr className="mt-4 mb-4" />
            </>;
        }

        return '';
    };

    render() {
        const {
            t,
            dhcp,
            resetDhcp,
            findActiveDhcp,
            addStaticLease,
            removeStaticLease,
            toggleLeaseModal,
        } = this.props;

        const statusButtonClass = classnames({
            'btn btn-primary btn-standard': true,
            'btn btn-primary btn-standard btn-loading': dhcp.processingStatus,
        });
        const { enabled, interface_name, ...values } = dhcp.config;

        return <>
            <PageTitle title={t('dhcp_settings')} />
            {(dhcp.processing || dhcp.processingInterfaces) && <Loading />}
            {!dhcp.processing && !dhcp.processingInterfaces && <>
                <Card
                    title={t('dhcp_title')}
                    subtitle={t('dhcp_description')}
                    bodyType="card-body box-body--settings"
                >
                    <div className="dhcp">
                        <>
                            <Form
                                onSubmit={this.handleFormSubmit}
                                initialValues={{
                                    interface_name,
                                    ...values,
                                }}
                                interfaces={dhcp.interfaces}
                                processingConfig={dhcp.processingConfig}
                                processingInterfaces={dhcp.processingInterfaces}
                                enabled={enabled}
                                resetDhcp={resetDhcp}
                            />
                            <hr />
                            <div className="card-actions mb-3">
                                {this.getToggleDhcpButton()}
                                <button
                                    type="button"
                                    className={statusButtonClass}
                                    onClick={() => findActiveDhcp(interface_name)}
                                    disabled={
                                        enabled || !interface_name || dhcp.processingConfig
                                    }
                                >
                                    <Trans>check_dhcp_servers</Trans>
                                </button>
                            </div>
                            {!enabled && dhcp.check && (
                                <>
                                    {this.getStaticIpWarning(t, dhcp.check, interface_name)}
                                    {this.getActiveDhcpMessage(t, dhcp.check)}
                                    {this.getDhcpWarning(dhcp.check)}
                                </>
                            )}
                        </>
                    </div>
                </Card>
                {dhcp.config.enabled && (
                    <Card
                        title={t('dhcp_leases')}
                        bodyType="card-body box-body--settings"
                    >
                        <div className="row">
                            <div className="col">
                                <Leases leases={dhcp.leases} />
                            </div>
                        </div>
                    </Card>
                )}
                <Card
                    title={t('dhcp_static_leases')}
                    bodyType="card-body box-body--settings"
                >
                    <div className="row">
                        <div className="col-12">
                            <StaticLeases
                                staticLeases={dhcp.staticLeases}
                                isModalOpen={dhcp.isModalOpen}
                                addStaticLease={addStaticLease}
                                removeStaticLease={removeStaticLease}
                                toggleLeaseModal={toggleLeaseModal}
                                processingAdding={dhcp.processingAdding}
                                processingDeleting={dhcp.processingDeleting}
                            />
                        </div>
                        <div className="col-12">
                            <button
                                type="button"
                                className="btn btn-success btn-standard mt-3"
                                onClick={() => toggleLeaseModal()}
                            >
                                <Trans>dhcp_add_static_lease</Trans>
                            </button>
                        </div>
                    </div>
                </Card>
            </>}
        </>;
    }
}

Dhcp.propTypes = {
    dhcp: PropTypes.object.isRequired,
    toggleDhcp: PropTypes.func.isRequired,
    getDhcpStatus: PropTypes.func.isRequired,
    setDhcpConfig: PropTypes.func.isRequired,
    findActiveDhcp: PropTypes.func.isRequired,
    addStaticLease: PropTypes.func.isRequired,
    removeStaticLease: PropTypes.func.isRequired,
    toggleLeaseModal: PropTypes.func.isRequired,
    getDhcpInterfaces: PropTypes.func.isRequired,
    t: PropTypes.func.isRequired,
    resetDhcp: PropTypes.func.isRequired,
};

export default withTranslation()(Dhcp);