import React, {Component} from 'react';
import './common.scss';
import './ServicePane.scss';
import Table from "react-bootstrap/Table";
import {Col, Container, Row} from "react-bootstrap";
import InputField from "../fields/InputField";
import TextField from "../fields/TextField";
import backend from "../../backend";
import NumericField from "../fields/extensions/NumericField";
import ColorField from "../fields/extensions/ColorField";
import ButtonField from "../fields/ButtonField";
import validation from "../../validation";
import LinkPopover from "../objects/LinkPopover";
import {createCurlCommand} from "../../utils";
import dispatcher from "../../dispatcher";

const classNames = require('classnames');
const _ = require('lodash');

class ServicePane extends Component {

    emptyService = {
        "port": 0,
        "name": "",
        "color": "",
        "notes": ""
    };

    state = {
        services: [],
        currentService: this.emptyService,
    };

    componentDidMount() {
        this.reset();
        this.loadServices();

        dispatcher.register("notifications", payload => {
            if (payload.event === "services.edit") {
                this.loadServices();
            }
        });

        document.title = "caronte:~/services$";
    }

    loadServices = () => {
        backend.get("/api/services")
            .then(res => this.setState({services: Object.values(res.json), servicesStatusCode: res.status}))
            .catch(res => this.setState({servicesStatusCode: res.status, servicesResponse: JSON.stringify(res.json)}));
    };

    updateService = () => {
        const service = this.state.currentService;
        if (this.validateService(service)) {
            backend.put("/api/services", service).then(res => {
                this.reset();
                this.setState({serviceStatusCode: res.status});
                this.loadServices();
            }).catch(res => {
                this.setState({serviceStatusCode: res.status, serviceResponse: JSON.stringify(res.json)});
            });
        }
    };

    validateService = (service) => {
        let valid = true;
        if (!validation.isValidPort(service.port, true)) {
            this.setState({servicePortError: "port < 0 || port > 65565"});
            valid = false;
        }
        if (service.name.length < 3) {
            this.setState({serviceNameError: "name.length < 3"});
            valid = false;
        }
        if (!validation.isValidColor(service.color)) {
            this.setState({serviceColorError: "color is not hexcolor"});
            valid = false;
        }

        return valid;
    };

    reset = () => {
        this.setState({
            isUpdate: false,
            currentService: _.cloneDeep(this.emptyService),
            servicePortError: null,
            serviceNameError: null,
            serviceColorError: null,
            serviceStatusCode: null,
            servicesStatusCode: null,
            serviceResponse: null,
            servicesResponse: null
        });
    };

    updateParam = (callback) => {
        callback(this.state.currentService);
        this.setState({currentService: this.state.currentService});
    };

    render() {
        const isUpdate = this.state.isUpdate;
        const service = this.state.currentService;

        let services = this.state.services.map(s =>
            <tr key={s.port} onClick={() => {
                this.reset();
                this.setState({isUpdate: true, currentService: _.cloneDeep(s)});
            }} className={classNames("row-small", "row-clickable", {"row-selected": service.port === s.port })}>
                <td>{s["port"]}</td>
                <td>{s["name"]}</td>
                <td><ButtonField name={s["color"]} color={s["color"]} small /></td>
                <td>{s["notes"]}</td>
            </tr>
        );

        const curlCommand = createCurlCommand("/services", "PUT", service);

        return (
            <div className="pane-container service-pane">
                <div className="pane-section services-list">
                    <div className="section-header">
                        <span className="api-request">GET /api/services</span>
                        {this.state.servicesStatusCode &&
                            <span className="api-response"><LinkPopover text={this.state.servicesStatusCode}
                                                                        content={this.state.servicesResponse}
                                                                        placement="left" /></span>}
                    </div>

                    <div className="section-content">
                        <div className="section-table">
                            <Table borderless size="sm">
                                <thead>
                                <tr>
                                    <th>port</th>
                                    <th>name</th>
                                    <th>color</th>
                                    <th>notes</th>
                                </tr>
                                </thead>
                                <tbody>
                                {services}
                                </tbody>
                            </Table>
                        </div>
                    </div>
                </div>

                <div className="pane-section service-edit">
                    <div className="section-header">
                        <span className="api-request">PUT /api/services</span>
                        <span className="api-response"><LinkPopover text={this.state.serviceStatusCode}
                                                                    content={this.state.serviceResponse}
                                                                    placement="left" /></span>
                    </div>

                    <div className="section-content">
                        <Container className="p-0">
                            <Row>
                                <Col>
                                    <NumericField name="port" value={service.port}
                                                  onChange={(v) => this.updateParam((s) => s.port = v)}
                                                  min={0} max={65565} error={this.state.servicePortError} />
                                    <InputField name="name" value={service.name}
                                                onChange={(v) => this.updateParam((s) => s.name = v)}
                                                error={this.state.serviceNameError} />
                                    <ColorField value={service.color} error={this.state.serviceColorError}
                                                onChange={(v) => this.updateParam((s) => s.color = v)} />
                                </Col>

                                <Col>
                                    <TextField name="notes" rows={7} value={service.notes}
                                               onChange={(v) => this.updateParam((s) => s.notes = v)} />
                                </Col>
                            </Row>
                        </Container>

                        <TextField value={curlCommand} rows={3} readonly small={true}/>
                    </div>

                    <div className="section-footer">
                        {<ButtonField variant="red" name="cancel" bordered onClick={this.reset}/>}
                        <ButtonField variant={isUpdate ? "blue" : "green"} name={isUpdate ? "update_service" : "add_service"}
                                     bordered onClick={this.updateService} />
                    </div>
                </div>
            </div>
        );
    }

}

export default ServicePane;