// Copyright (c) Microsoft Corporation. All rights reserved.
// Licensed under the MIT license. See LICENSE file in the project root for full license information.

using System;
using System.Collections.Generic;
using System.Runtime.Serialization;

using Microsoft.VisualStudio.TestPlatform.ObjectModel;

namespace Microsoft.VisualStudio.TestPlatform.Extensions.HtmlLogger.ObjectModel;

/// <summary>
/// Test results stores the relevant information to show on html file
/// </summary>
[DataContract]
public class TestResult
{
    /// <summary>
    /// Guards <see cref="InnerTestResults"/>, which is appended to from multiple threads when
    /// data driven results are reported concurrently during parallel execution.
    /// </summary>
    private readonly object _innerResultsLock = new();

    /// <summary>
    /// Fully qualified name of the Test Result.
    /// </summary>
    [DataMember] public string? FullyQualifiedName { get; set; }

    /// <summary>
    /// Unique identifier for test result
    /// </summary>
    [DataMember] public Guid TestResultId { get; set; }

    /// <summary>
    /// Display Name for the particular Test Result
    /// </summary>
    [DataMember] public string? DisplayName { get; set; }

    /// <summary>
    /// The error stack trace of the Test Result.
    /// </summary>
    [DataMember] public string? ErrorStackTrace { get; set; }

    /// <summary>
    /// Error message of the Test Result.
    /// </summary>
    [DataMember] public string? ErrorMessage { get; set; }

    /// <summary>
    /// Enum that determines the outcome of the test case
    /// </summary>
    [DataMember] public TestOutcome ResultOutcome { get; set; }

    /// <summary>
    /// Total timespan of the TestResult
    /// </summary>
    [DataMember] public string? Duration { get; set; }

    /// <summary>
    /// The list of TestResults that are children to the current Test Result.
    /// </summary>
    [DataMember] public List<TestResult>? InnerTestResults { get; set; }

    /// <summary>
    /// Adds a child result. Safe to call concurrently from multiple threads.
    /// </summary>
    internal void AddInnerTestResult(TestResult innerTestResult)
    {
        lock (_innerResultsLock)
        {
            InnerTestResults ??= new List<TestResult>();
            InnerTestResults.Add(innerTestResult);
        }
    }
}