/*
 * Copyright © 2016 TIBCO Software,Inc.All rights reserved.
 * http://community.jaspersoft.com/project/jaspermobile-android
 *
 * Unless you have purchased a commercial license agreement from TIBCO Jaspersoft,
 * the following license terms apply:
 *
 * This program is part of TIBCO Jaspersoft Mobile for Android.
 *
 * TIBCO Jaspersoft Mobile is free software:you can redistribute it and/or modify
 * it under the terms of the GNU Lesser General Public License as published by
 * the Free Software Foundation,either version 3of the License,or
 * (at your option)any later version.
 *
 * TIBCO Jaspersoft Mobile 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 Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public License
 * along with TIBCO Jaspersoft Mobile for Android.If not,see
 * <http://www.gnu.org/licenses/lgpl>.
 */

package com.jaspersoft.android.jaspermobile.webview.dashboard.bridge;

import android.content.Context;
import android.webkit.WebView;

import com.jaspersoft.android.jaspermobile.domain.JasperServer;
import com.jaspersoft.android.jaspermobile.util.ScreenUtil;
import com.jaspersoft.android.jaspermobile.util.ScreenUtil_;
import com.jaspersoft.android.jaspermobile.util.VisualizeEndpoint;
import com.jaspersoft.android.sdk.client.oxm.resource.ResourceLookup;
import com.samskivert.mustache.Mustache;
import com.samskivert.mustache.Template;

import org.apache.commons.io.IOUtils;

import java.io.IOException;
import java.io.InputStream;
import java.io.StringWriter;
import java.util.HashMap;
import java.util.Map;

/**
 * @author Tom Koptel
 * @since 2.1
 */
public final class AmberTwoDashboardExecutor extends AbstractDashboardExecutor {
    private final WebView webView;
    private final JasperServer server;
    private final String uri;

    private AmberTwoDashboardExecutor(WebView webView, JasperServer server, ResourceLookup resource) {
        this.webView = webView;
        this.server = server;
        this.uri = resource.getUri();
    }

    public static DashboardExecutor newInstance(WebView webView, JasperServer server, ResourceLookup resource) {
        if (webView == null) {
            throw new IllegalArgumentException("WebView should not be null");
        }
        if (resource == null) {
            throw new IllegalArgumentException("ResourceLookup should not be null");
        }
        return new AmberTwoDashboardExecutor(webView, server, resource);
    }

    @Override
    void doPreparation() {
        InputStream stream = null;
        Context context = webView.getContext();

        try {
            stream = context.getAssets().open("dashboard.html");
            StringWriter writer = new StringWriter();
            IOUtils.copy(stream, writer, "UTF-8");

            VisualizeEndpoint endpoint = VisualizeEndpoint.forBaseUrl(server.getBaseUrl())
                    .optimized()
                    .build();

            Map<String, String> data = new HashMap<String, String>();
            data.put("visualize_url", endpoint.createUri());
            Template tmpl = Mustache.compiler().compile(writer.toString());
            String html = tmpl.execute(data);

            webView.loadDataWithBaseURL(server.getBaseUrl(), html, "text/html", "utf-8", null);
        } catch (IOException e) {
            throw new RuntimeException(e);
        } finally {
            if (stream != null) {
                IOUtils.closeQuietly(stream);
            }
        }
    }

    @Override
    void doExecution() {
        ScreenUtil screenUtil = ScreenUtil_.getInstance_(webView.getContext());
        StringBuilder builder = new StringBuilder();
        builder.append("javascript:MobileDashboard")
                .append(".configure({ \"diagonal\": %s })")
                .append(".run({ \"uri\": \"%s\" })");
        String executeScript = String.format(builder.toString(), screenUtil.getDiagonal(), uri);
        webView.loadUrl(executeScript);
    }
}