/*
 * This file is part of caronte (https://github.com/eciavatta/caronte).
 * Copyright (c) 2020 Emiliano Ciavatta.
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, version 3.
 *
 * This program is distributed in the hope that it will be useful, but
 * WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
 * General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program. If not, see <http://www.gnu.org/licenses/>.
 */

import React, {Component} from 'react';
import './Connection.scss';
import {Form} from "react-bootstrap";
import backend from "../../backend";
import {dateTimeToTime, durationBetween, formatSize} from "../../utils";
import ButtonField from "../fields/ButtonField";
import LinkPopover from "./LinkPopover";
import TextField from "../fields/TextField";
import dispatcher from "../../dispatcher";

const classNames = require('classnames');

class Connection extends Component {

    constructor(props) {
        super(props);
        this.state = {
            update: false,
            copiedMessage: false
        };

        this.copyTextarea = React.createRef();
        this.handleAction = this.handleAction.bind(this);
    }

    handleAction(name) {
        if (name === "hide") {
            const enabled = !this.props.data.hidden;
            backend.post(`/api/connections/${this.props.data.id}/${enabled ? "hide" : "show"}`)
                .then(_ => {
                    this.props.onEnabled(!enabled);
                    this.setState({update: true});
                });
        }
        if (name === "mark") {
            const marked = this.props.data.marked;
            backend.post(`/api/connections/${this.props.data.id}/${marked ? "unmark" : "mark"}`)
                .then(_ => {
                    this.props.onMarked(!marked);
                    this.setState({update: true});
                });
        }
        if (name === "copy") {
            this.copyTextarea.current.select();
            document.execCommand('copy');
            this.setState({copiedMessage: true});
            setTimeout(() => this.setState({copiedMessage: false}), 3000);
        }
    }

    render() {
        let conn = this.props.data;
        let serviceName = "/dev/null";
        let serviceColor = "#0f192e";
        if (this.props.services[conn["port_dst"]]) {
            const service = this.props.services[conn["port_dst"]];
            serviceName = service.name;
            serviceColor = service.color;
        }
        let startedAt = new Date(conn["started_at"]);
        let closedAt = new Date(conn["closed_at"]);
        let processedAt = new Date(conn["processed_at"]);
        let timeInfo = <div>
            <span>Started at {startedAt.toLocaleDateString() + " " + startedAt.toLocaleTimeString()}</span><br/>
            <span>Processed at {processedAt.toLocaleDateString() + " " + processedAt.toLocaleTimeString()}</span><br/>
            <span>Closed at {closedAt.toLocaleDateString() + " " + closedAt.toLocaleTimeString()}</span>
        </div>;

        const commentPopoverContent = <div>
            <span>Click to <strong>{conn.comment.length > 0 ? "edit" : "add"}</strong> comment</span>
            {conn.comment && <Form.Control as="textarea" readOnly={true} rows={2} defaultValue={conn.comment}/>}
        </div>;

        const copyPopoverContent = <div>
            {this.state.copiedMessage ? <span><strong>Copied!</strong></span> :
                <span>Click to <strong>copy</strong> the connection id</span>}
            <TextField readonly rows={1} value={conn.id} textRef={this.copyTextarea}/>
        </div>;

        return (
            <tr className={classNames("connection", {"connection-selected": this.props.selected},
                {"has-matched-rules": conn.matched_rules.length > 0})}>
                <td>
                    <span className="connection-service">
                        <ButtonField small fullSpan color={serviceColor} name={serviceName}
                                     onClick={() => dispatcher.dispatch("connections_filters",
                                         {"service_port": conn["port_dst"].toString()})}/>
                    </span>
                </td>
                <td className="clickable" onClick={this.props.onSelected}>{conn["ip_src"]}</td>
                <td className="clickable" onClick={this.props.onSelected}>{conn["port_src"]}</td>
                <td className="clickable" onClick={this.props.onSelected}>{conn["ip_dst"]}</td>
                <td className="clickable" onClick={this.props.onSelected}>{conn["port_dst"]}</td>
                <td className="clickable" onClick={this.props.onSelected}>
                    <LinkPopover text={dateTimeToTime(conn["started_at"])} content={timeInfo} placement="right"/>
                </td>
                <td className="clickable" onClick={this.props.onSelected}>{durationBetween(startedAt, closedAt)}</td>
                <td className="clickable" onClick={this.props.onSelected}>{formatSize(conn["client_bytes"])}</td>
                <td className="clickable" onClick={this.props.onSelected}>{formatSize(conn["server_bytes"])}</td>
                <td className="connection-actions">
                    <LinkPopover text={<span className={classNames("connection-icon", {"icon-enabled": conn.marked})}
                                             onClick={() => this.handleAction("mark")}>!!</span>}
                                 content={<span>Mark this connection</span>} placement="right"/>
                    <LinkPopover text={<span className={classNames("connection-icon", {"icon-enabled": conn.comment})}
                                             onClick={() => this.handleAction("comment")}>@</span>}
                                 content={commentPopoverContent} placement="right"/>
                    <LinkPopover text={<span className={classNames("connection-icon", {"icon-enabled": conn.hidden})}
                                             onClick={() => this.handleAction("copy")}>#</span>}
                                 content={copyPopoverContent} placement="right"/>
                </td>
            </tr>
        );
    }

}

export default Connection;