/**
 * @license
 * Blockly Tests
 *
 * Copyright 2017 Google Inc.
 * https://developers.google.com/blockly/
 *
 * 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.
 */
'use strict';

goog.require('goog.testing');
goog.require('goog.testing.MockControl');

function helper_createWorkspaceWithToolbox() {
  var toolbox = document.getElementById('toolbox-categories');
  return Blockly.inject('blocklyDiv', {toolbox: toolbox});
}

function test_createWorkspace() {
  var workspace = helper_createWorkspaceWithToolbox();
  workspace.dispose();
}

function test_emptyWorkspace() {
  var workspace = helper_createWorkspaceWithToolbox();
  try {
    assertEquals('Empty workspace (1).', 0, workspace.getTopBlocks(true).length);
    assertEquals('Empty workspace (2).', 0, workspace.getTopBlocks(false).length);
    assertEquals('Empty workspace (3).', 0, workspace.getAllBlocks().length);
    workspace.clear();
    assertEquals('Empty workspace (4).', 0, workspace.getTopBlocks(true).length);
    assertEquals('Empty workspace (5).', 0, workspace.getTopBlocks(false).length);
    assertEquals('Empty workspace (6).', 0, workspace.getAllBlocks().length);
  } finally {
    workspace.dispose();
  }
}

function test_flatWorkspace() {
  var workspace = helper_createWorkspaceWithToolbox();
  var blockA, blockB;
  try {
    blockA = workspace.newBlock('');
    assertEquals('One block workspace (1).', 1, workspace.getTopBlocks(true).length);
    assertEquals('One block workspace (2).', 1, workspace.getTopBlocks(false).length);
    assertEquals('One block workspace (3).', 1, workspace.getAllBlocks().length);
    blockB = workspace.newBlock('');
    assertEquals('Two block workspace (1).', 2, workspace.getTopBlocks(true).length);
    assertEquals('Two block workspace (2).', 2, workspace.getTopBlocks(false).length);
    assertEquals('Two block workspace (3).', 2, workspace.getAllBlocks().length);
    blockA.dispose();
    assertEquals('One block workspace (4).', 1, workspace.getTopBlocks(true).length);
    assertEquals('One block workspace (5).', 1, workspace.getTopBlocks(false).length);
    assertEquals('One block workspace (6).', 1, workspace.getAllBlocks().length);
    workspace.clear();
    assertEquals('Cleared workspace (1).', 0, workspace.getTopBlocks(true).length);
    assertEquals('Cleared workspace (2).', 0, workspace.getTopBlocks(false).length);
    assertEquals('Cleared workspace (3).', 0, workspace.getAllBlocks().length);
  } finally {
    blockB && blockB.dispose();
    blockA && blockA.dispose();
    workspace.dispose();
  }
}

/** Tests the alignment of appendDomToWorkspace with WorkspaceSvg. */
function test_appendDomToWorkspace() {
  var workspace = helper_createWorkspaceWithToolbox();
  try {
    var dom = Blockly.Xml.textToDom(
      '<xml xmlns="http://www.w3.org/1999/xhtml">' +
      '  <block type="looks_show" inline="true" x="21" y="23">' +
      '  </block>' +
      '</xml>');
    Blockly.Xml.appendDomToWorkspace(dom, workspace);
    assertEquals('Block count', 1, workspace.getAllBlocks().length);
    Blockly.Xml.appendDomToWorkspace(dom, workspace);
    assertEquals('Block count', 2, workspace.getAllBlocks().length);
    var blocks =  workspace.getAllBlocks();
    assertEquals('Block 1 position x',21,blocks[0].getRelativeToSurfaceXY().x);
    assertEquals('Block 1 position y',23,blocks[0].getRelativeToSurfaceXY().y);
    assertEquals('Block 2 position x',21,blocks[1].getRelativeToSurfaceXY().x);
    assertEquals('Block 2 position y',23 + blocks[0].getHeightWidth().height + Blockly.BlockSvg.SEP_SPACE_Y,blocks[1].getRelativeToSurfaceXY().y);
  } finally {
    workspace.dispose();
  }
}

function test_addNewVariableRefreshToolbox() {
  var workspace = helper_createWorkspaceWithToolbox();

  var mockControl = new goog.testing.MockControl();
  var mockMethod = mockControl.createMethodMock(Blockly.WorkspaceSvg.prototype,
    'refreshToolboxSelection_');
  try {
    mockMethod().$once();
    mockControl.$replayAll();
  
    workspace.createVariable('name1', 'type1', 'id1');
    mockControl.$verifyAll();
  } finally {
    workspace.dispose();
  }
}

function test_addDuplicateVariableDoNotRefreshToolbox() {
  var workspace = helper_createWorkspaceWithToolbox();
  
  var mockControl = new goog.testing.MockControl();
  var mockMethod = mockControl.createMethodMock(Blockly.WorkspaceSvg.prototype,
    'refreshToolboxSelection_');
  try {
    mockMethod().$once();
    mockControl.$replayAll();
    // Create same variable twice. The first should refresh the toolbox,
    // the second should not.
    workspace.createVariable('name1', 'type1', 'id1');
    workspace.createVariable('name1', 'type1', 'id1');

    mockControl.$verifyAll();
  } finally {
    workspace.dispose();
  }
}