let sdk = require('matrix-js-sdk');
let message = require('./message');
let utility = require('./utility');
let { logger } = require('./logging');

class Bot {
    constructor(config, buildInfo) {
        this.config = config;
        this.buildInfo = buildInfo;
        this.connected = false;
    }

    /**
     * Initialize the bot connection
     */
    init() {
        logger.info("Creating Matrix Client")
        this.client = sdk.createClient({
            baseUrl: this.config.baseUrl,
            accessToken: this.config.accessToken,
            userId: this.config.userId
        });
    }

    sendStatusStartup() {
        let promises = [Promise.resolve(true)]
        if (this.connected) {
            this.config.statusRooms.forEach(roomId => {
                logger.debug("Notifying %s of startup", roomId);
                promises.push(this.client.sendMessage(
                    roomId, message.createBasic("Started with version: " + this.buildInfo, message.types.NOTICE)
                ).then(() => {
                    logger.debug("Notified %s of startup", roomId);
                }));
            });
        } else {
            logger.warn("Attempting to send startup message while disconnected");
        }
        return Promise.all(promises);
    }

    sendStatusShutdown() {
        let promises = [Promise.resolve(true)]
        if (this.connected) {
            this.config.statusRooms.forEach(roomId => {
                logger.debug("Notifying %s of shutdown", roomId);
                promises.push(this.client.sendMessage(
                    roomId, message.createBasic("Shutting down", message.types.NOTICE)
                ).then(() => {
                    logger.debug("Notified %s of shutdown", roomId);
                }));
            });
        } else {
            logger.warn("Attempting to send shutdown message while disconnected");
        }
        return Promise.all(promises);
    }
}

function sanitizeConfig(config) {
    let clonedConfig = { ...config };
    clonedConfig.accessToken = "******"
    return clonedConfig;
}

function create(configFile) {
    let config = require(configFile);
    logger.info("Running with config:");
    logger.debug("%o", sanitizeConfig(config));
    let buildInfo = utility.getBuildInfo("../build.info")
    logger.info("Running version: %s", buildInfo);
    return new Bot(config, buildInfo);
}

exports.create = create;