"use strict";

class trdom_torrentcontrol {
    #logcb;
    #log(loglevel, msg) {
        if (this.#logcb !== null) {
            this.#logcb('trdom_servermanager', loglevel, msg);
        }
    }

    #element = document.createElement('div');
    getElement() {
        return this.#element;
    }

    #hash;
    #server;

    //TODO: remove
    #getKnownTorrents;

    handleEvent(e) {
        switch (e.type) {
        case 'click':
            if (e.currentTarget.hasAttributeNS('trweb', 'torrentlistfield')) {
                switch (e.currentTarget.getAttributeNS('trweb', 'torrentlistfield')) {
                case 'start':
                    this.#server.torrent_start(this.#hash);
                    e.stopPropagation();
                    break;
                case 'pause':
                    this.#server.torrent_pause(this.#hash);
                    e.stopPropagation();
                    break;
                case 'magnet':
                    let magneturl;
                    for (const [srv, data] of Object.entries(this.#getKnownTorrents()[this.#hash].servers)) {
                        if (data.magnetLink != null) {
                            magneturl = data.magnetLink;
                            break;
                        }
                    }
                    if (magneturl != null) {
                        this.#server.torrent_add_url(magneturl, false, null);
                    }
                    else {
                        this.#log(3, `Couldn't find magnet link! ${JSON.stringify(this.#getKnownTorrents()[this.#hash].servers)}`);
                    }
                    e.stopPropagation();
                    break;
                case 'download':
                    e.stopPropagation();
                    window.alert('not implemented');
                    break;
                }
            }
        }
    }

    constructor(hash, server, logcb, getKnownTorrents) {
        this.#hash = hash;
        this.#server = server;
        this.#logcb = logcb;
        this.#getKnownTorrents = getKnownTorrents;

        let srv = server.name;

        // statusbar
        let element_statusbar = document.createElement('div');
        element_statusbar.classList.add('trweb_torrentliststatusbar');

        // Current status and percentage
        let element_status = document.createElement('div');
        element_status.classList.add('trweb_torrentliststatus', 'col-12');
        element_status.setAttributeNS('trweb', 'server', srv);
        element_status.setAttributeNS('trweb', 'torrentlistfield', 'status');

        let element_start = document.createElement('div');
        element_start.classList.add('trweb_torrentlistcontrol', 'col-4');
        element_start.setAttributeNS('trweb', 'server', srv);
        element_start.setAttributeNS('trweb', 'torrent', this.#hash);
        element_start.setAttributeNS('trweb', 'torrentlistfield', 'start');
        element_start.appendChild(document.createTextNode("Start"));
        element_start.addEventListener("click", this);

        let element_pause = document.createElement('div');
        element_pause.classList.add('trweb_torrentlistcontrol', 'col-4');
        element_pause.setAttributeNS('trweb', 'server', srv);
        element_pause.setAttributeNS('trweb', 'torrent', this.#hash);
        element_pause.setAttributeNS('trweb', 'torrentlistfield', 'pause');
        element_pause.appendChild(document.createTextNode("Pause"));
        element_pause.addEventListener("click", this);

        // Download by magnet
        let element_magnet = document.createElement('div');
        element_magnet.classList.add('trweb_torrentlistmagnet', 'col');
        element_magnet.setAttributeNS('trweb', 'server', srv);
        element_magnet.setAttributeNS('trweb', 'torrent', this.#hash);
        element_magnet.setAttributeNS('trweb', 'torrentlistfield', 'magnet');
        element_magnet.appendChild(document.createTextNode(`[${srv}] Magnet`));
        element_magnet.addEventListener("click", this);

        // Download by torrent file
        let element_download = document.createElement('div');
        element_download.classList.add('trweb_torrentlistdownload', 'col');
        element_download.setAttributeNS('trweb', 'server', srv);
        element_download.setAttributeNS('trweb', 'torrent', this.#hash);
        element_download.setAttributeNS('trweb', 'torrentlistfield', 'download');
        element_download.appendChild(document.createTextNode(`[${srv}] Get torrent`));
        element_download.addEventListener("click", this);

        // row container
        let element_serverrow = document.createElement('div');
        element_serverrow.classList.add('trweb_torrentlistserverrow', 'row');
        element_serverrow.appendChild(element_status);
        element_serverrow.appendChild(element_start);
        element_serverrow.appendChild(element_pause);
        element_serverrow.appendChild(element_magnet);
        element_serverrow.appendChild(element_download);

        this.#element.classList.add('trweb_torrentlistserver', 'col-2', 'container');
        this.#element.setAttributeNS('trweb', 'torrentlistfield', 'server');
        this.#element.setAttributeNS('trweb', 'server', srv);
        this.#element.element_statusbar = element_statusbar;
        this.#element.appendChild(element_statusbar);
        this.#element.element_row = element_serverrow;
        this.#element.appendChild(element_serverrow);
        this.#element.element_status = element_status;
        this.#element.element_start = element_start;
        this.#element.element_pause = element_pause;
        this.#element.element_magnet = element_magnet;
        this.#element.element_download = element_download;
    }

}