// <copyright file="DevToolsProfilerTest.cs" company="Selenium Committers">
// Licensed to the Software Freedom Conservancy (SFC) under one
// or more contributor license agreements.  See the NOTICE file
// distributed with this work for additional information
// regarding copyright ownership.  The SFC licenses this file
// to you 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.
// </copyright>

using NUnit.Framework;
using System;
using System.Threading;
using System.Threading.Tasks;

namespace OpenQA.Selenium.DevTools;

using CurrentCdpVersion = V138;

[TestFixture]
public class DevToolsProfilerTest : DevToolsTestFixture
{
    [Test]
    [IgnoreBrowser(Selenium.Browser.IE, "IE does not support Chrome DevTools Protocol")]
    [IgnoreBrowser(Selenium.Browser.Firefox, "Firefox does not support Chrome DevTools Protocol")]
    [IgnoreBrowser(Selenium.Browser.Safari, "Safari does not support Chrome DevTools Protocol")]
    [IgnoreBrowser(Selenium.Browser.Edge, "We run it in Chrome and Edge releases are usually late.")]
    public async Task SimpleStartStopAndGetProfilerTest()
    {
        var domains = session.GetVersionSpecificDomains<CurrentCdpVersion.DevToolsSessionDomains>();
        await domains.Profiler.Enable();
        await domains.Profiler.Start();
        var response = await domains.Profiler.Stop();
        var profiler = response.Profile;
        ValidateProfile(profiler);
        await domains.Profiler.Disable();
    }

    [Test]
    [IgnoreBrowser(Selenium.Browser.IE, "IE does not support Chrome DevTools Protocol")]
    [IgnoreBrowser(Selenium.Browser.Firefox, "Firefox does not support Chrome DevTools Protocol")]
    [IgnoreBrowser(Selenium.Browser.Safari, "Safari does not support Chrome DevTools Protocol")]
    [IgnoreBrowser(Selenium.Browser.Edge, "We run it in Chrome and Edge releases are usually late.")]
    public async Task SampleGetBestEffortProfilerTest()
    {
        var domains = session.GetVersionSpecificDomains<CurrentCdpVersion.DevToolsSessionDomains>();
        await domains.Profiler.Enable();
        driver.Url = simpleTestPage;
        await domains.Profiler.SetSamplingInterval(new CurrentCdpVersion.Profiler.SetSamplingIntervalCommandSettings()
        {
            Interval = 30
        });

        var response = await domains.Profiler.GetBestEffortCoverage();
        var bestEffort = response.Result;
        Assert.That(bestEffort, Is.Not.Null);
        Assert.That(bestEffort.Length, Is.GreaterThan(0));
        await domains.Profiler.Disable();
    }

    [Test]
    [IgnoreBrowser(Selenium.Browser.IE, "IE does not support Chrome DevTools Protocol")]
    [IgnoreBrowser(Selenium.Browser.Firefox, "Firefox does not support Chrome DevTools Protocol")]
    [IgnoreBrowser(Selenium.Browser.Safari, "Safari does not support Chrome DevTools Protocol")]
    [IgnoreBrowser(Selenium.Browser.Edge, "We run it in Chrome and Edge releases are usually late.")]
    public async Task SampleSetStartPreciseCoverageTest()
    {
        var domains = session.GetVersionSpecificDomains<CurrentCdpVersion.DevToolsSessionDomains>();
        await domains.Profiler.Enable();
        driver.Url = simpleTestPage;
        await domains.Profiler.StartPreciseCoverage(new CurrentCdpVersion.Profiler.StartPreciseCoverageCommandSettings()
        {
            CallCount = true,
            Detailed = true
        });
        await domains.Profiler.Start();
        var coverageResponse = await domains.Profiler.TakePreciseCoverage();
        var pc = coverageResponse.Result;
        Assert.That(pc, Is.Not.Null);
        var response = await domains.Profiler.Stop();
        var profiler = response.Profile;
        ValidateProfile(profiler);
        await domains.Profiler.Disable();
    }


    [Test]
    [IgnoreBrowser(Selenium.Browser.IE, "IE does not support Chrome DevTools Protocol")]
    [IgnoreBrowser(Selenium.Browser.Firefox, "Firefox does not support Chrome DevTools Protocol")]
    [IgnoreBrowser(Selenium.Browser.Safari, "Safari does not support Chrome DevTools Protocol")]
    [IgnoreBrowser(Selenium.Browser.Edge, "We run it in Chrome and Edge releases are usually late.")]
    public async Task SampleProfileEvents()
    {
        var domains = session.GetVersionSpecificDomains<CurrentCdpVersion.DevToolsSessionDomains>();
        await domains.Profiler.Enable();
        driver.Url = simpleTestPage;
        ManualResetEventSlim startSync = new ManualResetEventSlim(false);
        EventHandler<CurrentCdpVersion.Profiler.ConsoleProfileStartedEventArgs> consoleProfileStartedHandler = (sender, e) =>
        {
            Assert.That(e, Is.Not.Null);
            startSync.Set();
        };
        domains.Profiler.ConsoleProfileStarted += consoleProfileStartedHandler;

        await domains.Profiler.Start();
        startSync.Wait(TimeSpan.FromSeconds(5));
        driver.Navigate().Refresh();

        ManualResetEventSlim finishSync = new ManualResetEventSlim(false);
        EventHandler<CurrentCdpVersion.Profiler.ConsoleProfileFinishedEventArgs> consoleProfileFinishedHandler = (sender, e) =>
        {
            Assert.That(e, Is.Not.Null);
            finishSync.Set();
        };
        domains.Profiler.ConsoleProfileFinished += consoleProfileFinishedHandler;

        var response = await domains.Profiler.Stop();
        finishSync.Wait(TimeSpan.FromSeconds(5));

        var profiler = response.Profile;
        ValidateProfile(profiler);
        await domains.Profiler.Disable();
    }

    private void ValidateProfile(CurrentCdpVersion.Profiler.Profile profiler)
    {
        Assert.That(profiler, Is.Not.Null);
        Assert.That(profiler.Nodes, Is.Not.Null);
        Assert.That(profiler.StartTime, Is.Not.Zero);
        Assert.That(profiler.EndTime, Is.Not.Zero);
        Assert.That(profiler.TimeDeltas, Is.Not.Null);
        foreach (var delta in profiler.TimeDeltas)
        {
            Assert.That(delta, Is.Not.Zero);
        }

        foreach (var node in profiler.Nodes)
        {
            Assert.That(node, Is.Not.Null);
            Assert.That(node.CallFrame, Is.Not.Null);
        }
    }
}
