package com.tyndalehouse.step.dataloader.loaders;

import org.apache.log4j.Logger;
import org.crosswire.jsword.book.Book;
import org.crosswire.jsword.book.Books;
import org.crosswire.jsword.book.install.InstallException;
import org.crosswire.jsword.book.install.sword.HttpSwordInstaller;

public class JSwordModuleInstaller {
    private final static String proxyHostProperty = "step.http.proxy";
    private final static String proxyPortProperty = "step.http.port";

    private final Logger log = Logger.getLogger(getClass());

    /** default set of bibles */
    String[] defaultModules = new String[] { "ESV", "KJV", "ASV", "StrongsHebrew", "StrongsGreek", "LXX", "BYZ", "WLC" };

    /**
     * a default set of modules need to be installed since unit tests rely on
     * them to be present TODO: the whole project should probably be cleaned
     * up/rewritten in a neater fashion
     * 
     * @throws InstallException
     *             failed to install bible modules
     */
    public void installDefaultModules() {
        try {
            log.info("about to create installer");
            final HttpSwordInstaller installer = getInstaller();
            log.info("got installer, going to reload books");
            installer.reloadBookList();
            log.info("reloaded books");
            for (final String s : defaultModules) {
                installBible(installer, s);
            }
        } catch (final Exception ex) {
            log.error(ex.getMessage(), ex);
        }
    }

    private void installBible(final HttpSwordInstaller installer, final String initials) throws InstallException {

        Book b = null;
        try {
            final Books books = Books.installed();
            if (books != null) {
                b = books.getBook(initials);

                if (b == null) {
                    log.info("installing " + initials);
                    installer.install(installer.getBook(initials));
                } else {
                    log.warn("Skipping " + initials);
                }
            }
        } catch (final Exception ex) {
            log.info("An exception occurred while reading the list of installed books (first time?)", ex);
        }
    }

    private HttpSwordInstaller getInstaller() {
        log.warn("Creating new installer for JSword");
        final HttpSwordInstaller resourceInstaller = new HttpSwordInstaller();
        System.out.println("Currently hardcoded installer host to:" + "www.crosswire.org");
        System.out.println("Currently hardcoded property names for step");
        final String host = "www.crosswire.org";
        final String proxyHost = System.getProperty(proxyHostProperty);
        final String proxyPort = System.getProperty(proxyPortProperty);
        System.out.println(String.format("Setting to (%1$s via %2$s:%3$s)", "www.crosswire.org", proxyHost, proxyPort));

        resourceInstaller.setHost(host);
        if (proxyHost != null && proxyHost.length() != 0) {
            resourceInstaller.setProxyHost(proxyHost);
        }
        if (proxyPort != null && proxyHost.length() != 0) {
            resourceInstaller.setProxyPort(Integer.parseInt(proxyPort));
        }

        System.out.println("Setting package and catalog directories");
        resourceInstaller.setPackageDirectory("/ftpmirror/pub/sword/packages/rawzip");
        resourceInstaller.setCatalogDirectory("/ftpmirror/pub/sword/raw");
        return resourceInstaller;
    }
}