using global::System;
using NUnit.Framework;
using NUnit.Framework.TUnit;
using Tizen.NUI.Components;
using Tizen.NUI.BaseComponents;
using System.Collections.Generic;
using System.Threading.Tasks;

namespace Tizen.NUI.Devel.Tests
{
    using tlog = Tizen.Log;

    [TestFixture]
    [Description("public/BaseComponents/TextEditorEvent")]
    public class PublicTextEditorEventTest
    {
        private const string tag = "NUITEST";
        private bool selectionStartedFlag = false;

        [SetUp]
        public void Init()
        {
            tlog.Info(tag, "Init() is called!");
        }

        [TearDown]
        public void Destroy()
        {
            tlog.Info(tag, "Destroy() is called!");
        }

        [Test]
        [Category("P1")]
        [Description("TextEditorEvent TextChanged.")]
        [Property("SPEC", "Tizen.NUI.TextEditorEvent.TextChanged A")]
        [Property("SPEC_URL", "-")]
        [Property("CRITERIA", "PRW")]
        [Property("AUTHOR", "guowei.wang@samsung.com")]
        public void TextEditorEventEvents()
        {
            tlog.Debug(tag, $"TextEditorEventEvents START");

            var testingTarget = new TextEditor(true);
            Assert.IsNotNull(testingTarget, "Can't create success object TextEditor");
            Assert.IsInstanceOf<TextEditor>(testingTarget, "Should be an instance of TextEditor type.");

            testingTarget.TextChanged += OnTextChanged;
            testingTarget.TextChanged -= OnTextChanged;

            testingTarget.MaxLengthReached += OnMaxLengthReached;
            testingTarget.MaxLengthReached -= OnMaxLengthReached;

            testingTarget.AnchorClicked += OnAnchorClicked;
            testingTarget.AnchorClicked -= OnAnchorClicked;

            testingTarget.SelectionStarted += OnSelectionStarted;
            testingTarget.SelectionStarted -= OnSelectionStarted;
                        
            testingTarget.Dispose();
            tlog.Debug(tag, $"TextEditorEventEvents END (OK)");
        }

        [Test]
        [Category("P1")]
        [Description("TextEditorEvent SelectionStarted.")]
        [Property("SPEC", "Tizen.NUI.TextEditor.SelectionStarted A")]
        [Property("SPEC_URL", "-")]
        [Property("CRITERIA", "PRW")]
        [Property("AUTHOR", "a.ghujeh@samsung.com")]
        async public Task TextEditorSelectionStarted()
        {
            tlog.Debug(tag, $"SelectionStarted START");

            var testingTarget = new TextEditor()
            {
                Text = "texteditor",
            };

            Window.Instance.GetDefaultLayer().Add(testingTarget);

            Assert.IsNotNull(testingTarget, "Can't create success object TextEditor");
            Assert.IsInstanceOf<TextEditor>(testingTarget, "Should be an instance of TextEditor type.");

            try
            {
                testingTarget.SelectionStarted += OnSelectionStarted;

                testingTarget.SelectWholeText();
                await Task.Delay(500);

                testingTarget.SelectionStarted -= OnSelectionStarted;
            }
            catch (Exception e)
            {
                tlog.Info(tag, e.Message.ToString());
                Assert.Fail("Caught Exception : Failed!");
            }

            testingTarget.Dispose();

            if(selectionStartedFlag == true)
                tlog.Debug(tag, $"SelectionStarted END (OK)");
            else
                Assert.Fail("SelectionStarted : Failed!");
        }

        private void OnAnchorClicked(object sender, AnchorClickedEventArgs e)
        {
        }

        private void OnMaxLengthReached(object sender, TextEditor.MaxLengthReachedEventArgs e)
        {
        }

        private void OnTextChanged(object sender, TextEditor.TextChangedEventArgs e)
        {
        }
        
        private void OnSelectionStarted(object sender, EventArgs e) 
        {
            selectionStartedFlag = true;
        }
    }
}