/**
 * @license
 * Copyright 2019 Google LLC
 * SPDX-License-Identifier: Apache-2.0
 */

import {assertEventFired, assertEventNotFired} from './test_helpers/events.js';
import {
  sharedTestSetup,
  sharedTestTeardown,
} from './test_helpers/setup_teardown.js';
import {
  defineBasicBlockWithField,
  defineMutatorBlocks,
  defineRowBlock,
  defineStackBlock,
  defineStatementBlock,
} from './test_helpers/block_definitions.js';
import * as eventUtils from '../../build/src/core/events/utils.js';
import {simulateClick} from './test_helpers/user_input.js';

suite('Trashcan', function () {
  function fireDeleteEvent(workspace, xmlString) {
    let xml = Blockly.utils.xml.textToDom(
      '<xml xmlns="https://developers.google.com/blockly/xml">' +
        xmlString +
        '</xml>',
    );
    xml = xml.children[0];
    const block = Blockly.Xml.domToBlock(xml, workspace);
    const event = new Blockly.Events.BlockDelete(block);
    eventUtils.fire(event);
  }
  function fireNonDeleteEvent(workspace, oldXml) {
    const event = new Blockly.Events.Abstract();
    event.type = 'test_field_block';
    event.workspaceId = workspace.id;
    if (oldXml) {
      event.oldXml = oldXml;
    }
    eventUtils.fire(/** @type {Blockly.Events.Abstract} */ event);
  }

  setup(function () {
    sharedTestSetup.call(this);
    defineBasicBlockWithField();
    defineRowBlock();
    defineRowBlock('row_block2');
    defineStatementBlock();
    defineStatementBlock('statement_block2');
    defineStackBlock();
    defineStackBlock('stack_block2');
    defineMutatorBlocks();
    this.workspace = Blockly.inject('blocklyDiv', {
      'trashcan': true,
      'maxTrashcanContents': Infinity,
    });
    this.trashcan = this.workspace.trashcan;
  });
  teardown(function () {
    sharedTestTeardown.call(this);
    Blockly.Extensions.unregister('xml_mutator');
    Blockly.Extensions.unregister('jso_mutator');
  });

  suite('Events', function () {
    test('Delete', function () {
      fireDeleteEvent(this.workspace, '<block type="test_field_block"/>');
      chai.assert.equal(this.trashcan.contents.length, 1);
    });
    test('Non-Delete', function () {
      fireNonDeleteEvent(this.workspace);
      chai.assert.equal(this.trashcan.contents.length, 0);
    });
    test('Non-Delete w/ oldXml', function () {
      let xml = Blockly.utils.xml.textToDom(
        '<xml xmlns="https://developers.google.com/blockly/xml">' +
          '  <block type="test_field_block"/>' +
          '</xml>',
      );
      xml = xml.children[0];
      fireNonDeleteEvent(this.workspace, xml);
      chai.assert.equal(this.trashcan.contents.length, 0);
    });
    test('Shadow Delete', function () {
      fireDeleteEvent(this.workspace, '<shadow type="test_field_block"/>');
      chai.assert.equal(this.trashcan.contents.length, 0);
    });
    test('Click without contents - fires workspace click', function () {
      simulateClick(this.trashcan.svgGroup);

      assertEventNotFired(this.eventsFireStub, Blockly.Events.TrashcanOpen, {
        type: eventUtils.CLICK,
      });
      assertEventFired(
        this.eventsFireStub,
        Blockly.Events.Click,
        {targetType: 'workspace', type: eventUtils.CLICK},
        this.workspace.id,
        undefined,
      );
    });
    test('Click with contents - fires trashcanOpen', function () {
      fireDeleteEvent(this.workspace, '<block type="test_field_block"/>');
      chai.assert.equal(this.trashcan.contents.length, 1);
      // Stub flyout interaction.
      const showFlyoutStub = sinon.stub(this.trashcan.flyout, 'show');

      simulateClick(this.trashcan.svgGroup);

      sinon.assert.calledOnce(showFlyoutStub);

      assertEventFired(
        this.eventsFireStub,
        Blockly.Events.TrashcanOpen,
        {isOpen: true, type: eventUtils.TRASHCAN_OPEN},
        this.workspace.id,
      );
      assertEventNotFired(this.eventsFireStub, Blockly.Events.Click, {
        type: eventUtils.TRASHCAN_OPEN,
      });
    });
    test('Click outside trashcan - fires trashcanClose', function () {
      this.trashcan.flyout.setVisible(true);

      simulateClick(this.workspace.svgGroup_);

      chai.assert.isFalse(
        this.trashcan.flyout.isVisible(),
        'Expected flyout to be hidden',
      );
      assertEventFired(
        this.eventsFireStub,
        Blockly.Events.TrashcanOpen,
        {isOpen: false, type: eventUtils.TRASHCAN_OPEN},
        this.workspace.id,
      );
      assertEventFired(
        this.eventsFireStub,
        Blockly.Events.Click,
        {targetType: 'workspace', type: eventUtils.CLICK},
        this.workspace.id,
        undefined,
      );
    });
  });
  suite('Unique Contents', function () {
    test('Simple', function () {
      fireDeleteEvent(this.workspace, '<block type="test_field_block"/>');
      fireDeleteEvent(this.workspace, '<block type="test_field_block"/>');
      chai.assert.equal(this.trashcan.contents.length, 1);
    });
    test('Different Coords', function () {
      fireDeleteEvent(
        this.workspace,
        '<block type="test_field_block" x="10" y="10"/>',
      );
      fireDeleteEvent(
        this.workspace,
        '<block type="test_field_block" x="20" y="20"/>',
      );
      chai.assert.equal(this.trashcan.contents.length, 1);
    });
    test('Different IDs', function () {
      fireDeleteEvent(
        this.workspace,
        '<block type="test_field_block" id="id1"/>',
      );
      fireDeleteEvent(
        this.workspace,
        '<block type="test_field_block" id="id2"/>',
      );
      chai.assert.equal(this.trashcan.contents.length, 1);
    });
    test('No Disabled - Disabled True', function () {
      fireDeleteEvent(this.workspace, '<block type="test_field_block"/>');
      fireDeleteEvent(
        this.workspace,
        '<block type="test_field_block" disabled="true"/>',
      );
      // Disabled tags get removed because disabled blocks aren't allowed to
      // be dragged from flyouts. See #2239 and #3243.
      chai.assert.equal(this.trashcan.contents.length, 1);
    });
    test('Different Field Values', function () {
      fireDeleteEvent(
        this.workspace,
        '<block type="test_field_block">' +
          '  <field name="NAME">dummy_value1</field>' +
          '</block>',
      );
      fireDeleteEvent(
        this.workspace,
        '<block type="test_field_block">' +
          '  <field name="NAME">dummy_value2</field>' +
          '</block>',
      );
      chai.assert.equal(this.trashcan.contents.length, 2);
    });
    test('No Values - Values', function () {
      fireDeleteEvent(this.workspace, '<block type="row_block"/>');
      fireDeleteEvent(
        this.workspace,
        '<block type="row_block">' +
          '  <value name="INPUT">' +
          '    <block type="row_block"/>' +
          '  </value>' +
          '</block>',
      );
      chai.assert.equal(this.trashcan.contents.length, 2);
    });
    test('Different Value Blocks', function () {
      fireDeleteEvent(
        this.workspace,
        '<block type="row_block">' +
          '  <value name="INPUT">' +
          '    <block type="row_block"/>' +
          '  </value>' +
          '</block>',
      );
      fireDeleteEvent(
        this.workspace,
        '<block type="row_block">' +
          '  <value name="INPUT">' +
          '    <block type="row_block2"/>' +
          '  </value>' +
          '</block>',
      );
      chai.assert.equal(this.trashcan.contents.length, 2);
    });
    test('No Statements - Statements', function () {
      fireDeleteEvent(this.workspace, '<block type="statement_block"/>');
      fireDeleteEvent(
        this.workspace,
        '<block type="statement_block">' +
          '  <statement name="NAME">' +
          '    <block type="statement_block"/>' +
          '  </statement>' +
          '</block>',
      );
      chai.assert.equal(this.trashcan.contents.length, 2);
    });
    test('Different Statement Blocks', function () {
      fireDeleteEvent(
        this.workspace,
        '<block type="statement_block">' +
          '  <statement name="NAME">' +
          '    <block type="statement_block"/>' +
          '  </statement>' +
          '</block>',
      );
      fireDeleteEvent(
        this.workspace,
        '<block type="statement_block2">' +
          '  <statement name="NAME">' +
          '    <block type="statement_block2"/>' +
          '  </statement>' +
          '</block>',
      );
      chai.assert.equal(this.trashcan.contents.length, 2);
    });
    test('No Next - Next', function () {
      fireDeleteEvent(this.workspace, '<block type="stack_block"/>');
      fireDeleteEvent(
        this.workspace,
        '<block type="stack_block">' +
          '  <next>' +
          '    <block type="stack_block"/>' +
          '  </next>' +
          '</block>',
      );
      chai.assert.equal(this.trashcan.contents.length, 2);
    });
    test('Different Next Blocks', function () {
      fireDeleteEvent(
        this.workspace,
        '<block type="stack_block">' +
          '  <next>' +
          '    <block type="stack_block"/>' +
          '  </next>' +
          '</block>',
      );
      fireDeleteEvent(
        this.workspace,
        '<block type="stack_block">' +
          '  <next>' +
          '    <block type="stack_block2"/>' +
          '  </next>' +
          '</block>',
      );
      chai.assert.equal(this.trashcan.contents.length, 2);
    });
    test('No Comment - Comment', function () {
      fireDeleteEvent(this.workspace, '<block type="test_field_block"/>');
      fireDeleteEvent(
        this.workspace,
        '<block type="test_field_block">' +
          '  <comment>comment_text</comment>' +
          '</block>',
      );
      chai.assert.equal(this.trashcan.contents.length, 2);
    });
    test('Different Comment Text', function () {
      fireDeleteEvent(
        this.workspace,
        '<block type="test_field_block">' +
          '  <comment>comment_text1</comment>' +
          '</block>',
      );
      fireDeleteEvent(
        this.workspace,
        '<block type="test_field_block">' +
          '  <comment>comment_text2</comment>' +
          '</block>',
      );
      chai.assert.equal(this.trashcan.contents.length, 2);
    });
    test('Different Comment Size', function () {
      fireDeleteEvent(
        this.workspace,
        '<block type="test_field_block">' +
          '  <comment h="10" w="10">comment_text</comment>' +
          '</block>',
      );
      fireDeleteEvent(
        this.workspace,
        '<block type="test_field_block">' +
          '  <comment h="20" w="20">comment_text</comment>' +
          '</block>',
      );
      // h & w tags are removed b/c the blocks appear the same.
      chai.assert.equal(this.trashcan.contents.length, 1);
    });
    test('Different Comment Pinned', function () {
      fireDeleteEvent(
        this.workspace,
        '<block type="test_field_block">' +
          '  <comment pinned="false">comment_text</comment>' +
          '</block>',
      );
      fireDeleteEvent(
        this.workspace,
        '<block type="test_field_block">' +
          '  <comment pinned="true">comment_text</comment>' +
          '</block>',
      );
      // pinned tags are removed b/c the blocks appear the same.
      chai.assert.equal(this.trashcan.contents.length, 1);
    });
    test('Different Mutator', function () {
      fireDeleteEvent(
        this.workspace,
        '<block type="xml_block">' +
          '  <mutation hasInput="true"></mutation>' +
          '</block>',
      );
      fireDeleteEvent(
        this.workspace,
        '<block type="xml_block">' +
          '  <mutation hasInputt="false"></mutation>' +
          '</block>',
      );
      chai.assert.equal(this.trashcan.contents.length, 2);
    });
  });
  suite('Max Contents', function () {
    test('Max 0', function () {
      this.workspace.options.maxTrashcanContents = 0;
      fireDeleteEvent(this.workspace, '<block type="test_field_block"/>');
      chai.assert.equal(this.trashcan.contents.length, 0);
      this.workspace.options.maxTrashcanContents = Infinity;
    });
  });
});