// Copyright 2012 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

package org.chromium.android_webview.test;

import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.test.suitebuilder.annotation.SmallTest;

import static org.chromium.base.test.util.ScalableTimeout.scaleTimeout;

import org.chromium.android_webview.AwContents;
import org.chromium.android_webview.test.util.CommonResources;
import org.chromium.net.test.util.TestWebServer;

import java.io.InputStream;
import java.net.URL;
import java.util.concurrent.Callable;

/**
 * Tests for the Favicon and TouchIcon related APIs.
 */
public class AwContentsClientFaviconTest extends AwTestBase {

    private static final String FAVICON1_URL = "/favicon1.png";
    private static final String FAVICON1_PAGE_URL = "/favicon1.html";
    private static final String FAVICON1_PAGE_HTML =
            CommonResources.makeHtmlPageFrom(
                    "<link rel=\"icon\" href=\"" + FAVICON1_URL + "\" />",
                    "Body");

    private static final String TOUCHICON_REL_LINK = "touch.png";
    private static final String TOUCHICON_REL_LINK_72 = "touch_72.png";
    private static final String TOUCHICON_REL_URL = "/" + TOUCHICON_REL_LINK;
    private static final String TOUCHICON_REL_URL_72 = "/" + TOUCHICON_REL_LINK_72;
    private static final String TOUCHICON_REL_PAGE_HTML =
            CommonResources.makeHtmlPageFrom(
                    "<link rel=\"apple-touch-icon\" href=\"" + TOUCHICON_REL_URL + "\" />"
                    + "<link rel=\"apple-touch-icon\" sizes=\"72x72\" href=\""
                    + TOUCHICON_REL_URL_72 + "\" />",
                    "Body");

    // Maximum number of milliseconds within which a request to web server is made.
    private static final long MAX_REQUEST_WAITING_LIMIT_MS = scaleTimeout(500);

    private TestAwContentsClient mContentsClient;
    private AwContents mAwContents;
    private TestWebServer mWebServer;

    @Override
    protected void setUp() throws Exception {
        super.setUp();
        AwContents.setShouldDownloadFavicons();
        mContentsClient = new TestAwContentsClient();
        AwTestContainerView testContainerView =
                createAwTestContainerViewOnMainSync(mContentsClient);
        mAwContents = testContainerView.getAwContents();
        mWebServer = TestWebServer.start();
    }

    @Override
    protected void tearDown() throws Exception {
        if (mWebServer != null) mWebServer.shutdown();
        super.tearDown();
    }

    @SmallTest
    public void testReceiveBasicFavicon() throws Throwable {
        int callCount = mContentsClient.getFaviconHelper().getCallCount();

        final String faviconUrl = mWebServer.setResponseBase64(FAVICON1_URL,
                CommonResources.FAVICON_DATA_BASE64, CommonResources.getImagePngHeaders(true));
        final String pageUrl = mWebServer.setResponse(FAVICON1_PAGE_URL, FAVICON1_PAGE_HTML,
                CommonResources.getTextHtmlHeaders(true));

        loadUrlSync(mAwContents, mContentsClient.getOnPageFinishedHelper(), pageUrl);

        mContentsClient.getFaviconHelper().waitForCallback(callCount);
        assertEquals(1, mWebServer.getRequestCount(FAVICON1_URL));
        Object originalFaviconSource = (new URL(faviconUrl)).getContent();
        Bitmap originalFavicon = BitmapFactory.decodeStream((InputStream) originalFaviconSource);
        assertNotNull(originalFavicon);
        assertNotNull(mContentsClient.getFaviconHelper().getIcon());
        assertTrue(mContentsClient.getFaviconHelper().getIcon().sameAs(originalFavicon));

        // Make sure the request counter for favicon is incremented when the page is loaded again
        // successfully.
        loadUrlAsync(mAwContents, pageUrl);
        mContentsClient.getFaviconHelper().waitForCallback(callCount);
        assertEquals(2, mWebServer.getRequestCount(FAVICON1_URL));
    }

    @SmallTest
    public void testDoNotMakeRequestForFaviconAfter404() throws Throwable {
        mWebServer.setResponseWithNotFoundStatus(FAVICON1_URL);
        final String pageUrl = mWebServer.setResponse(FAVICON1_PAGE_URL, FAVICON1_PAGE_HTML,
                CommonResources.getTextHtmlHeaders(true));

        loadUrlSync(mAwContents, mContentsClient.getOnPageFinishedHelper(), pageUrl);
        poll(new Callable<Boolean>() {
            @Override
            public Boolean call() throws Exception {
                return mWebServer.getRequestCount(FAVICON1_URL) == 1;
            }
        });

        // Make sure the request counter for favicon is not incremented, since we already got 404.
        loadUrlSync(mAwContents, mContentsClient.getOnPageFinishedHelper(), pageUrl);
        // If a request hasn't been done within this time period, we assume it won't be done.
        Thread.sleep(MAX_REQUEST_WAITING_LIMIT_MS);
        assertEquals(1, mWebServer.getRequestCount(FAVICON1_URL));
    }

    @SmallTest
    public void testReceiveBasicTouchIconLinkRel() throws Throwable {
        int callCount = mContentsClient.getFaviconHelper().getCallCount();

        final String pageUrl = mWebServer.setResponse(TOUCHICON_REL_URL, TOUCHICON_REL_PAGE_HTML,
                CommonResources.getTextHtmlHeaders(true));

        loadUrlSync(mAwContents, mContentsClient.getOnPageFinishedHelper(), pageUrl);

        mContentsClient.getTouchIconHelper().waitForCallback(callCount, 2);
        assertEquals(2, mContentsClient.getTouchIconHelper().getTouchIconsCount());
        assertFalse(mContentsClient.getTouchIconHelper().hasTouchIcon(
                        mWebServer.getBaseUrl() + TOUCHICON_REL_LINK));
        assertFalse(mContentsClient.getTouchIconHelper().hasTouchIcon(
                        mWebServer.getBaseUrl() + TOUCHICON_REL_LINK_72));
    }
}