// Copyright (c) .NET Foundation. All rights reserved.
// Licensed under the Apache License, Version 2.0. See License.txt in the project root for license information.

using System.Linq;
using System.Reflection;
using Microsoft.Extensions.Configuration;

namespace Microsoft.AspNetCore.E2ETesting
{
    public class E2ETestOptions
    {
        private const string TestingOptionsPrefix = "Microsoft.AspNetCore.E2ETesting";
        public static readonly IConfiguration Configuration;

        public static E2ETestOptions Instance;

        static E2ETestOptions()
        {
            // Capture all the attributes that start with Microsoft.AspNetCore.E2ETesting and add them as a memory collection
            // to the list of settings. We use GetExecutingAssembly, this works because E2ETestOptions is shared source.
            var metadataAttributes = Assembly.GetExecutingAssembly()
                .GetCustomAttributes<AssemblyMetadataAttribute>()
                .Where(ama => ama.Key.StartsWith(TestingOptionsPrefix))
                .ToDictionary(kvp => kvp.Key.Substring(TestingOptionsPrefix.Length + 1), kvp => kvp.Value);

            try
            {
                // We save the configuration just to make resolved values easier to debug.
                var builder = new ConfigurationBuilder()
                    .AddInMemoryCollection(metadataAttributes);

                if (!metadataAttributes.TryGetValue("CI", out var value) || string.IsNullOrEmpty(value))
                {
                    builder.AddJsonFile("e2eTestSettings.json", optional: true);
                }
                else
                {
                    builder.AddJsonFile("e2eTestSettings.ci.json", optional: true);
                }

                Configuration = builder 
                    .AddEnvironmentVariables("E2ETESTS")
                    .Build();

                var instance = new E2ETestOptions();
                Configuration.Bind(instance);
                Instance = instance;
            }
            catch
            {
            }
        }

        public int DefaultWaitTimeoutInSeconds { get; set; } = 3;

        public string ScreenShotsPath { get; set; }

        public double DefaultAfterFailureWaitTimeoutInSeconds { get; set; } = 3;
    }
}