/*
 * Copyright (C) 2008 The Android Open Source Project
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package android.app.cts;

import android.app.Activity;
import android.app.SearchManager;
import android.content.ComponentName;
import android.content.Context;
import android.cts.util.CTSResult;
import android.os.Bundle;
import android.os.Handler;
import android.os.Message;
import android.util.Log;

public class SearchManagerStubActivity extends Activity {

    private static final String TAG = "SearchManagerStubActivity";

    public static final String TEST_STOP_SEARCH = "stopSearch";
    public static final String TEST_ON_DISMISSLISTENER = "setOnDismissListener";
    public static final String TEST_ON_CANCELLISTENER = "setOnCancelListener";

    private SearchManager mSearchManager;
    private ComponentName mComponentName;

    private static CTSResult sCTSResult;
    private boolean mDismissCalled;
    private boolean mCancelCalled;

    public static void setCTSResult(CTSResult result) {
        sCTSResult = result;
    }

    @Override
    public void onCreate(Bundle icicle) {
        super.onCreate(icicle);
        mSearchManager = (SearchManager) getSystemService(Context.SEARCH_SERVICE);
        mComponentName = getComponentName();
        String action = getIntent().getAction();
        if (action.equals(TEST_STOP_SEARCH)) {
            testStopSearch();
        } else if (action.equals(TEST_ON_DISMISSLISTENER)) {
            testOnDismissListener();
        } else if (action.equals(TEST_ON_CANCELLISTENER)) {
            testOnCancelListener();
        }
    }

    private void testOnCancelListener() {
        mCancelCalled = false;
        mSearchManager.setOnCancelListener(new SearchManager.OnCancelListener() {
            @Override
            public void onCancel() {
               mCancelCalled = true;
            }
        });

        new TestStepHandler() {
            @Override
            public boolean doStep(int step) throws FailException {
                switch (step) {
                    case 1:
                        startSearch("test", false, mComponentName, null, false);
                        return false;
                    case 2:
                        assertFalse("cancel called", mCancelCalled);
                        stopSearch();
                        return false;
                    case 3:
                        assertTrue("cancel not called", mCancelCalled);
                        pass();
                        return true;
                    default:
                        throw new IllegalArgumentException("Bad step " + step);
                }
            }
        }.start();
    }

    private void testOnDismissListener() {
        mDismissCalled = false;

        mSearchManager.setOnDismissListener(new SearchManager.OnDismissListener() {
            public void onDismiss() {
                mDismissCalled = true;
            }
        });

        new TestStepHandler() {
            @Override
            public boolean doStep(int step) throws FailException {
                switch (step) {
                    case 1:
                        startSearch("test", false, mComponentName, null, false);
                        return false;
                    case 2:
                        if (mDismissCalled) {
                            throw new FailException("dismiss called");
                        } else {
                            stopSearch();
                        }
                        return false;
                    case 3:
                        if (mDismissCalled) {
                            pass();
                        } else {
                            throw new FailException("dismiss not called");
                        }
                        return true;
                    default:
                        throw new IllegalArgumentException("Bad step " + step);
                }
            }
        }.start();
    }

    private void testStopSearch() {
        new TestStepHandler() {
            @Override
            public boolean doStep(int step) throws FailException {
                switch (step) {
                    case 1:
                        startSearch("test", false, mComponentName, null, false);
                        return false;
                    case 2:
                        assertVisible();
                        stopSearch();
                        return false;
                    case 3:
                        assertInVisible();
                        pass();
                        return true;
                    default:
                        throw new IllegalArgumentException("Bad step " + step);
                }
            }
        }.start();
    }

    private void fail(Exception ex) {
        Log.e(TAG, "test failed", ex);
        sCTSResult.setResult(CTSResult.RESULT_FAIL);
        finish();
    }

    private void pass() {
        sCTSResult.setResult(CTSResult.RESULT_OK);
        finish();
    }

    private void assertInVisible() throws FailException {
        if (isVisible()) {
            throw new FailException();
        }
    }

    private void assertVisible() throws FailException {
        if (!isVisible()) {
            throw new FailException();
        }
    }

    private void assertFalse(String message, boolean value) throws FailException {
        assertTrue(message, !value);
    }

    private void assertTrue(String message, boolean value) throws FailException {
        if (!value) {
            throw new FailException(message);
        }
    }

    private void startSearch(String initialQuery, boolean selectInitialQuery,
            ComponentName launchActivity, Bundle appSearchData, boolean globalSearch) {
        mSearchManager.startSearch(initialQuery, selectInitialQuery, launchActivity, appSearchData,
                globalSearch);
    }

    private void stopSearch() {
       mSearchManager.stopSearch();
    }

    private boolean isVisible() {
        return mSearchManager.isVisible();
    }

    private abstract class TestStepHandler extends Handler {

        public void start() {
            sendEmptyMessage(1);
        }

        @Override
        public void handleMessage(Message msg) {
            try {
                if (!doStep(msg.what)) {
                    sendEmptyMessage(msg.what + 1);
                }
            } catch (FailException ex) {
                fail(ex);
            }
        }

        /**
         * Performs one step of the test.
         *
         * @param step The 1-based number of the step to perform.
         * @return {@code true} if this was the last step.
         * @throws FailException If the test failed.
         */
        protected abstract boolean doStep(int step) throws FailException;
    }

    private static class FailException extends Exception {
        private static final long serialVersionUID = 1L;

        public FailException() {
            super();
        }

        public FailException(String detailMessage) {
            super(detailMessage);
        }
    }
}