/*
 * Copyright (C) 2016 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 com.android.documentsui.picker;

import static com.android.documentsui.base.State.ACTION_CREATE;
import static com.android.documentsui.base.State.ACTION_OPEN;
import static org.junit.Assert.assertFalse;
import static org.junit.Assert.assertTrue;

import android.provider.DocumentsContract.Root;
import android.support.test.filters.SmallTest;
import android.support.test.runner.AndroidJUnit4;

import com.android.documentsui.R;
import com.android.documentsui.base.DocumentInfo;
import com.android.documentsui.base.RootInfo;
import com.android.documentsui.base.State;
import com.android.documentsui.testing.TestDirectoryDetails;
import com.android.documentsui.testing.TestMenu;
import com.android.documentsui.testing.TestMenuItem;
import com.android.documentsui.testing.TestSearchViewManager;
import com.android.documentsui.testing.TestSelectionDetails;

import org.junit.Before;
import org.junit.Test;
import org.junit.runner.RunWith;

@RunWith(AndroidJUnit4.class)
@SmallTest
public final class MenuManagerTest {

    private TestMenu testMenu;

    /* Directory Context Menu items */
    private TestMenuItem dirShare;
    private TestMenuItem dirOpen;
    private TestMenuItem dirOpenWith;
    private TestMenuItem dirCutToClipboard;
    private TestMenuItem dirCopyToClipboard;
    private TestMenuItem dirPasteFromClipboard;
    private TestMenuItem dirCreateDir;
    private TestMenuItem dirSelectAll;
    private TestMenuItem dirRename;
    private TestMenuItem dirDelete;
    private TestMenuItem dirViewInOwner;
    private TestMenuItem dirOpenInNewWindow;
    private TestMenuItem dirPasteIntoFolder;

    /* Root List Context Menu items */
    private TestMenuItem rootEjectRoot;
    private TestMenuItem rootOpenInNewWindow;
    private TestMenuItem rootPasteIntoFolder;
    private TestMenuItem rootSettings;

    /* Action Mode menu items */
    private TestMenuItem actionModeOpen;
    private TestMenuItem actionModeOpenWith;
    private TestMenuItem actionModeShare;
    private TestMenuItem actionModeDelete;
    private TestMenuItem actionModeSelectAll;
    private TestMenuItem actionModeCopyTo;
    private TestMenuItem actionModeExtractTo;
    private TestMenuItem actionModeMoveTo;
    private TestMenuItem actionModeCompress;
    private TestMenuItem actionModeRename;
    private TestMenuItem actionModeViewInOwner;

    /* Option Menu items */
    private TestMenuItem optionSearch;
    private TestMenuItem optionDebug;
    private TestMenuItem optionGrid;
    private TestMenuItem optionList;
    private TestMenuItem optionNewWindow;
    private TestMenuItem optionCreateDir;
    private TestMenuItem optionSelectAll;
    private TestMenuItem optionAdvanced;
    private TestMenuItem optionSettings;

    private TestSelectionDetails selectionDetails;
    private TestDirectoryDetails dirDetails;
    private TestSearchViewManager testSearchManager;
    private State state = new State();
    private RootInfo testRootInfo;
    private DocumentInfo testDocInfo;
    private MenuManager mgr;

    @Before
    public void setUp() {
        testMenu = TestMenu.create();
        dirShare = testMenu.findItem(R.id.dir_menu_share);
        dirOpen = testMenu.findItem(R.id.dir_menu_open);
        dirOpenWith = testMenu.findItem(R.id.dir_menu_open_with);
        dirCutToClipboard = testMenu.findItem(R.id.dir_menu_cut_to_clipboard);
        dirCopyToClipboard = testMenu.findItem(R.id.dir_menu_copy_to_clipboard);
        dirPasteFromClipboard = testMenu.findItem(R.id.dir_menu_paste_from_clipboard);
        dirCreateDir = testMenu.findItem(R.id.dir_menu_create_dir);
        dirSelectAll = testMenu.findItem(R.id.dir_menu_select_all);
        dirRename = testMenu.findItem(R.id.dir_menu_rename);
        dirDelete = testMenu.findItem(R.id.dir_menu_delete);
        dirViewInOwner = testMenu.findItem(R.id.dir_menu_view_in_owner);
        dirOpenInNewWindow = testMenu.findItem(R.id.dir_menu_open_in_new_window);
        dirPasteIntoFolder = testMenu.findItem(R.id.dir_menu_paste_into_folder);

        rootEjectRoot = testMenu.findItem(R.id.root_menu_eject_root);
        rootOpenInNewWindow = testMenu.findItem(R.id.root_menu_open_in_new_window);
        rootPasteIntoFolder = testMenu.findItem(R.id.root_menu_paste_into_folder);
        rootSettings = testMenu.findItem(R.id.root_menu_settings);

        actionModeOpen = testMenu.findItem(R.id.action_menu_open);
        actionModeOpenWith = testMenu.findItem(R.id.action_menu_open_with);
        actionModeShare = testMenu.findItem(R.id.action_menu_share);
        actionModeDelete = testMenu.findItem(R.id.action_menu_delete);
        actionModeSelectAll = testMenu.findItem(R.id.action_menu_select_all);
        actionModeCopyTo = testMenu.findItem(R.id.action_menu_copy_to);
        actionModeExtractTo = testMenu.findItem(R.id.action_menu_extract_to);
        actionModeMoveTo = testMenu.findItem(R.id.action_menu_move_to);
        actionModeCompress = testMenu.findItem(R.id.action_menu_compress);
        actionModeRename = testMenu.findItem(R.id.action_menu_rename);
        actionModeViewInOwner = testMenu.findItem(R.id.action_menu_view_in_owner);

        optionSearch = testMenu.findItem(R.id.option_menu_search);
        optionDebug = testMenu.findItem(R.id.option_menu_debug);
        optionGrid = testMenu.findItem(R.id.option_menu_grid);
        optionList = testMenu.findItem(R.id.option_menu_list);
        optionNewWindow = testMenu.findItem(R.id.option_menu_new_window);
        optionCreateDir = testMenu.findItem(R.id.option_menu_create_dir);
        optionSelectAll = testMenu.findItem(R.id.option_menu_select_all);
        optionAdvanced = testMenu.findItem(R.id.option_menu_advanced);
        optionSettings = testMenu.findItem(R.id.option_menu_settings);

        selectionDetails = new TestSelectionDetails();
        dirDetails = new TestDirectoryDetails();
        testSearchManager = new TestSearchViewManager();
        mgr = new MenuManager(testSearchManager, state, dirDetails);

        testRootInfo = new RootInfo();
        testDocInfo = new DocumentInfo();
        state.action = ACTION_CREATE;
        state.allowMultiple = true;
    }

    @Test
    public void testActionMenu() {
        mgr.updateActionMenu(testMenu, selectionDetails);

        actionModeOpen.assertInvisible();
        actionModeDelete.assertInvisible();
        actionModeShare.assertInvisible();
        actionModeRename.assertInvisible();
        actionModeSelectAll.assertVisible();
        actionModeViewInOwner.assertInvisible();
    }

    @Test
    public void testActionMenu_openAction() {
        state.action = ACTION_OPEN;
        mgr.updateActionMenu(testMenu, selectionDetails);

        actionModeOpen.assertVisible();
    }


    @Test
    public void testActionMenu_notAllowMultiple() {
        state.allowMultiple = false;
        mgr.updateActionMenu(testMenu, selectionDetails);

        actionModeSelectAll.assertInvisible();
    }

    @Test
    public void testOptionMenu() {
        mgr.updateOptionMenu(testMenu);

        optionAdvanced.assertInvisible();
        optionAdvanced.assertTitle(R.string.menu_advanced_show);
        optionCreateDir.assertDisabled();
        assertTrue(testSearchManager.showMenuCalled());
    }

    @Test
    public void testOptionMenu_notPicking() {
        state.action = ACTION_OPEN;
        state.derivedMode = State.MODE_LIST;
        mgr.updateOptionMenu(testMenu);

        optionCreateDir.assertInvisible();
        optionGrid.assertVisible();
        optionList.assertInvisible();
        assertFalse(testSearchManager.showMenuCalled());
    }

    @Test
    public void testOptionMenu_canCreateDirectory() {
        dirDetails.canCreateDirectory = true;
        mgr.updateOptionMenu(testMenu);

        optionCreateDir.assertEnabled();
    }

    @Test
    public void testOptionMenu_showAdvanced() {
        state.showAdvanced = true;
        state.showDeviceStorageOption = true;
        mgr.updateOptionMenu(testMenu);

        optionAdvanced.assertVisible();
        optionAdvanced.assertTitle(R.string.menu_advanced_hide);
    }

    @Test
    public void testOptionMenu_inRecents() {
        dirDetails.isInRecents = true;
        mgr.updateOptionMenu(testMenu);

        optionGrid.assertInvisible();
        optionList.assertInvisible();
    }

    @Test
    public void testContextMenu_EmptyArea() {
        dirDetails.hasItemsToPaste = false;
        dirDetails.canCreateDoc = false;
        dirDetails.canCreateDirectory = false;

        mgr.updateContextMenuForContainer(testMenu);

        dirSelectAll.assertVisible();
        dirSelectAll.assertEnabled();
        dirPasteFromClipboard.assertVisible();
        dirPasteFromClipboard.assertDisabled();
        dirCreateDir.assertVisible();
        dirCreateDir.assertDisabled();
    }

    @Test
    public void testContextMenu_EmptyArea_NoItemToPaste() {
        dirDetails.hasItemsToPaste = false;
        dirDetails.canCreateDoc = true;

        mgr.updateContextMenuForContainer(testMenu);

        dirSelectAll.assertVisible();
        dirSelectAll.assertEnabled();
        dirPasteFromClipboard.assertVisible();
        dirPasteFromClipboard.assertDisabled();
        dirCreateDir.assertVisible();
        dirCreateDir.assertDisabled();
    }

    @Test
    public void testContextMenu_EmptyArea_CantCreateDoc() {
        dirDetails.hasItemsToPaste = true;
        dirDetails.canCreateDoc = false;

        mgr.updateContextMenuForContainer(testMenu);

        dirSelectAll.assertVisible();
        dirSelectAll.assertEnabled();
        dirPasteFromClipboard.assertVisible();
        dirPasteFromClipboard.assertDisabled();
        dirCreateDir.assertVisible();
        dirCreateDir.assertDisabled();
    }

    @Test
    public void testContextMenu_EmptyArea_canPaste() {
        dirDetails.hasItemsToPaste = true;
        dirDetails.canCreateDoc = true;

        mgr.updateContextMenuForContainer(testMenu);

        dirSelectAll.assertVisible();
        dirSelectAll.assertEnabled();
        dirPasteFromClipboard.assertVisible();
        dirPasteFromClipboard.assertEnabled();
        dirCreateDir.assertVisible();
        dirCreateDir.assertDisabled();
    }

    @Test
    public void testContextMenu_EmptyArea_CanCreateDirectory() {
        dirDetails.canCreateDirectory = true;

        mgr.updateContextMenuForContainer(testMenu);

        dirSelectAll.assertVisible();
        dirSelectAll.assertEnabled();
        dirPasteFromClipboard.assertVisible();
        dirPasteFromClipboard.assertDisabled();
        dirCreateDir.assertVisible();
        dirCreateDir.assertEnabled();
    }

    @Test
    public void testContextMenu_OnFile() {
        mgr.updateContextMenuForFiles(testMenu, selectionDetails);
        // We don't want share in pickers.
        dirShare.assertInvisible();
        // We don't want openWith in pickers.
        dirOpenWith.assertInvisible();
        dirCutToClipboard.assertVisible();
        dirCopyToClipboard.assertVisible();
        dirRename.assertInvisible();
        dirDelete.assertVisible();
    }

    @Test
    public void testContextMenu_OnDirectory() {
        selectionDetails.canPasteInto = true;
        mgr.updateContextMenuForDirs(testMenu, selectionDetails);
        // We don't want openInNewWindow in pickers
        dirOpenInNewWindow.assertInvisible();
        dirCutToClipboard.assertVisible();
        dirCopyToClipboard.assertVisible();
        // Doesn't matter if directory is selected, we don't want pasteInto for PickerActivity
        dirPasteIntoFolder.assertInvisible();
        dirRename.assertInvisible();
        dirDelete.assertVisible();
    }

    @Test
    public void testContextMenu_OnMixedDocs() {
        selectionDetails.containDirectories = true;
        selectionDetails.containFiles = true;
        selectionDetails.size = 2;
        selectionDetails.canDelete = true;
        mgr.updateContextMenu(testMenu, selectionDetails);
        dirCutToClipboard.assertVisible();
        dirCopyToClipboard.assertVisible();
        dirDelete.assertVisible();
    }

    @Test
    public void testContextMenu_OnMixedDocs_hasPartialFile() {
        selectionDetails.containDirectories = true;
        selectionDetails.containFiles = true;
        selectionDetails.size = 2;
        selectionDetails.containPartial = true;
        selectionDetails.canDelete = true;
        mgr.updateContextMenu(testMenu, selectionDetails);
        dirCutToClipboard.assertVisible();
        dirCutToClipboard.assertDisabled();
        dirCopyToClipboard.assertVisible();
        dirCopyToClipboard.assertDisabled();
        dirDelete.assertVisible();
        dirDelete.assertEnabled();
    }

    @Test
    public void testContextMenu_OnMixedDocs_hasUndeletableFile() {
        selectionDetails.containDirectories = true;
        selectionDetails.containFiles = true;
        selectionDetails.size = 2;
        selectionDetails.canDelete = false;
        mgr.updateContextMenu(testMenu, selectionDetails);
        dirCutToClipboard.assertVisible();
        dirCutToClipboard.assertDisabled();
        dirCopyToClipboard.assertVisible();
        dirCopyToClipboard.assertEnabled();
        dirDelete.assertVisible();
        dirDelete.assertDisabled();
    }

    @Test
    public void testRootContextMenu() {
        mgr.updateRootContextMenu(testMenu, testRootInfo, testDocInfo);

        rootEjectRoot.assertInvisible();
        rootOpenInNewWindow.assertInvisible();
        rootPasteIntoFolder.assertInvisible();
        rootSettings.assertInvisible();
    }

    @Test
    public void testRootContextMenu_hasRootSettings() {
        testRootInfo.flags = Root.FLAG_HAS_SETTINGS;
        mgr.updateRootContextMenu(testMenu, testRootInfo, testDocInfo);

        rootSettings.assertInvisible();
    }

    @Test
    public void testRootContextMenu_nonWritableRoot() {
        dirDetails.hasItemsToPaste = true;
        mgr.updateRootContextMenu(testMenu, testRootInfo, testDocInfo);

        rootPasteIntoFolder.assertInvisible();
    }

    @Test
    public void testRootContextMenu_nothingToPaste() {
        testRootInfo.flags = Root.FLAG_SUPPORTS_CREATE;
        dirDetails.hasItemsToPaste = false;
        mgr.updateRootContextMenu(testMenu, testRootInfo, testDocInfo);

        rootPasteIntoFolder.assertInvisible();
    }

    @Test
    public void testRootContextMenu_canEject() {
        testRootInfo.flags = Root.FLAG_SUPPORTS_EJECT;
        mgr.updateRootContextMenu(testMenu, testRootInfo, testDocInfo);

        rootEjectRoot.assertInvisible();
    }
}