import React from 'react';
import Grid from './grid/grid';
import GridControl from './grid/grid-control';

class MineSeeker extends React.Component {
    constructor(props) {
        super(props);

        var gameAssoc = props.gameId !== '' ? props.gameId : this.makeGameAssoc(50);
        var channel = "mineseeker/channel/" + gameAssoc;

        this.state = {
            gameInherited: props.gameId !== '',
            gameAssoc: gameAssoc,
            channel: channel,
            session: null,
            createGrid: false,
            stepCache: null
        }
    }

    makeGameAssoc(len) {
        var text = "";
        var possible = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789";
        for (var i = 0; i < len; i++) {
            text += possible.charAt(Math.floor(Math.random() * possible.length));
        }
        return text;
    }

    /** THE END */
    makeGameEndIfItEnds(bluePoints, redPoints) {
        var redWins = redPoints > 2,
            blueWins = bluePoints > 2;

        if (redWins || blueWins) {
            this.refs.gridControl.state.sound.won.play();

            this.refs.gridControl.setState({
                overlay: true,
                overlayTitle: (redWins ? 'Red' : 'Blue') + " wins the game!",
                overlaySubTitle: "Play again!"
            });

            this.refs.gridControl.showLeftMines();

            this.refs.gridControl.refs.userControl.setState({ activePlayer: false});
            this.refs.gridControl.refs.userControl.refs.red.setState({ active: false });
            this.refs.gridControl.refs.userControl.refs.blue.setState({ active: false });
        }
    }

    /** after rendering */
    componentDidMount() {
        /** Create Websocket w/ Bahnhof.js */
        var websocket = WS.connect("ws://mine.dev:6450");

        /**
         * Connect
         * Session is an Autobahn JS WAMP session.
         */
        websocket.on("socket/connect", (session) => {
            console.info("Successfully connected to the Server!");

            var gridClient = this.state.gameInherited || new Grid().state.grid;

            /**
             * Connect - RPC
             * Send grid information to the server
             */
            session
                .call(
                    this.state.gameInherited ? "mineseeker-rpc/connectGame" : "mineseeker-rpc/startGame",
                    this.state.gameInherited ? this.state.gameAssoc : [Base64.encode(JSON.stringify(gridClient)), this.state.gameAssoc]
                )
                .then(
                    (gridServer) => {
                        console.info("Grid has been created! Return w/ gameAssoc.");

                        this.setState({session: session});

                        /** save session to GridControl */
                        /** render grid fields - #12 */
                        this.refs.gridControl.setState({
                            grid: this.state.gameInherited ? JSON.parse(Base64.decode(gridServer)) : gridClient,
                            channel: this.state.channel,
                            overlay: true,
                            overlayTitle: "We are waiting for your opponent...",
                            overlaySubTitle: this.state.gameAssoc
                                ? <a href={"/play/" + this.state.gameAssoc} target="_blank">Play w/ me!</a>
                                : '',
                            renderGridFields: this.state.gameAssoc
                        });

                        /** setup the web player */
                        this.refs.gridControl.state.webPlayer === null && this.refs.gridControl.setState({webPlayer: this.state.gameInherited ? 'blue' : 'red'});

                        /** Connect - Subscribe */
                        this.state.session.subscribe(
                            this.state.channel,
                            (uri, payload, log) => {

                                var isTopicEvent = typeof payload.data !== 'undefined',
                                    isNotUnsubscribe = typeof payload.msg === 'undefined';

                                if (isTopicEvent) {
                                    console.warn(payload.user + " has been stepped to coords: " + payload.data.coords[0] + ', ' + payload.data.coords[1]);

                                    /** Auto-Step if this player is not the current user */
                                    if (this.refs.gridControl.state.webPlayer !== payload.data.player) {
                                        console.warn('Opponent stepped: Auto-Step process');

                                        this.refs.gridControl.refs.userControl.setState({bombSelected: payload.data.bomb});
                                        this.refs.gridControl.stepEvent(payload.data.coords);

                                        /** THE END */
                                        this.makeGameEndIfItEnds(
                                            this.refs.gridControl.refs.userControl.refs.blue.state.mines,
                                            this.refs.gridControl.refs.userControl.refs.red.state.mines
                                        );
                                    }
                                } else {

                                    /** It is subscribe or unsubscribe */
                                    if (isNotUnsubscribe) {
                                        console.info(
                                            (typeof payload.user !== 'undefined' ? payload.user : 'user') + " has been subscribed to the channel!"
                                        );

                                        /** remove overlay when every user has been came */
                                        this.refs.gridControl.setState({overlay: payload.userCnt < 2});

                                        /** Set up player names w/ server data */
                                        this.refs.gridControl.refs.userControl.refs.red.setState({
                                            name: payload.users.red !== '' ? payload.users.red : payload.users.redAnon
                                        });

                                        this.refs.gridControl.refs.userControl.refs.blue.setState({
                                            name: payload.users.blue !== '' ? payload.users.blue : payload.users.blueAnon
                                        });
                                    } else {
                                        console.info(payload.msg);

                                        this.refs.gridControl.setState({
                                            overlay: true,
                                            overlayTitle: "The connection has been lost...",
                                            overlaySubTitle: "Please, restart the game!"
                                        });
                                    }
                                }
                            }
                        );
                    },
                    (error, desc) => console.error(["RPC Error", error, desc])
                );
        });

        /**
         * DisConnect
         * Error provides us with some insight into the disconnection: error.reason and error.code
         */
        websocket.on("socket/disconnect", (error) => console.error("Disconnected for " + error.reason + " with code " + error.code));
    }

    onClick(coords) {
        var activePlayer = this.refs.gridControl.refs.userControl.state.activePlayer ? 'blue' : 'red';

        /** if the clicked field is NEVER CLICKED */
        if (this.refs.gridControl.checkFieldHasBeenNeverClicked(coords[0], coords[1])) {
            /** Player step and it is the current player */
            if (activePlayer === this.refs.gridControl.state.webPlayer) {
                this.refs.gridControl.stepEvent(coords);

                var mineCache = this.refs.gridControl.state.foundUserMineCache,
                    redPoints = this.refs.gridControl.refs.userControl.refs.red.state.mines + (
                            this.refs.gridControl.refs.userControl.refs.red.state.active
                                ? mineCache
                                : 0
                        ),
                    bluePoints = this.refs.gridControl.refs.userControl.refs.blue.state.mines + (
                            this.refs.gridControl.refs.userControl.refs.blue.state.active
                                ? mineCache
                                : 0
                        );

                /** THE END */
                this.makeGameEndIfItEnds(bluePoints, redPoints);

                this.state.session
                    .publish(this.state.channel, {
                        'coords': coords,
                        'player': activePlayer,
                        'bomb': this.refs.gridControl.refs.userControl.state.bombSelected,
                        'redPoints': redPoints,
                        'bluePoints': bluePoints
                    });
            }
        }
    }

    render() {
        return (
            <GridControl ref="gridControl"
                         env={this.props.env === 'dev'}
                         onClick={this.onClick.bind(this)}/>
        );
    }
}

export default MineSeeker;