using Microsoft.AspNetCore.Builder;
using Microsoft.AspNetCore.Mvc;
using Microsoft.AspNetCore.Mvc.ApiExplorer;
using Microsoft.AspNetCore.Mvc.Versioning;
using Microsoft.Extensions.Configuration;
using Microsoft.Extensions.DependencyInjection;
using Microsoft.Extensions.Hosting;
using Microsoft.Extensions.Options;
using Mirea.Api.DataAccess.Application;
using Mirea.Api.DataAccess.Persistence;
using Mirea.Api.Endpoint.Configuration;
using Mirea.Api.Endpoint.Middleware;
using Mirea.Api.Endpoint.Properties;
using Swashbuckle.AspNetCore.SwaggerGen;
using System;
using System.Collections;
using System.IO;
using System.Linq;

namespace Mirea.Api.Endpoint;

public class Program
{
    private static IConfigurationRoot ConfigureEnvironment()
    {
        EnvironmentManager.LoadEnvironment(".env");
        var environmentVariables = Environment.GetEnvironmentVariables()
            .OfType<DictionaryEntry>()
            .ToDictionary(
                entry => entry.Key.ToString() ?? string.Empty,
                entry => entry.Value?.ToString() ?? string.Empty
            );

        var result = new ConfigurationBuilder().AddInMemoryCollection(environmentVariables!);

        return result.Build();
    }

    public static void Main(string[] args)
    {
        Directory.SetCurrentDirectory(AppDomain.CurrentDomain.BaseDirectory);

        var builder = WebApplication.CreateBuilder(args);
        builder.Configuration.AddConfiguration(ConfigureEnvironment());
        builder.Configuration.AddJsonFile(Settings.FilePath, optional: true, reloadOnChange: true);

        builder.Services.AddApplication();
        builder.Services.AddPersistence(builder.Configuration);
        builder.Services.AddControllers();

        builder.Services.AddCors(options =>
        {
            options.AddPolicy("AllowAll", policy =>
            {
                policy.AllowAnyHeader();
                policy.AllowAnyMethod();
                policy.AllowAnyOrigin();
            });
        });

        builder.Services.AddApiVersioning(options =>
        {
            options.DefaultApiVersion = new ApiVersion(1, 0);
            options.AssumeDefaultVersionWhenUnspecified = true;
            options.ReportApiVersions = true;
            options.ApiVersionReader = new UrlSegmentApiVersionReader();
        });

        builder.Services.AddVersionedApiExplorer(options =>
        {
            options.GroupNameFormat = "'v'VVV";
            options.SubstituteApiVersionInUrl = true;
        });

        builder.Services.AddEndpointsApiExplorer();

        builder.Services.AddSwaggerGen(options =>
        {
            options.OperationFilter<SwaggerDefaultValues>();
            var basePath = Path.Combine(AppDomain.CurrentDomain.BaseDirectory);

            var xmlPath = Path.Combine(basePath, "docs.xml");
            options.IncludeXmlComments(xmlPath);
        });

        builder.Services.AddTransient<IConfigureOptions<SwaggerGenOptions>, ConfigureSwaggerOptions>();

        var app = builder.Build();

#if DEBUG
        // Write configurations
        foreach (var item in app.Configuration.AsEnumerable())
            Console.WriteLine($"{item.Key}:{item.Value}");
#endif

        var uber = app.Services.CreateScope().ServiceProvider.GetService<UberDbContext>();
        DbInitializer.Initialize(uber!);

        // Configure the HTTP request pipeline.
        if (app.Environment.IsDevelopment())
        {
            app.UseSwagger();
            app.UseSwaggerUI(options =>
            {
                var provider = app.Services.GetService<IApiVersionDescriptionProvider>();

                foreach (var description in provider!.ApiVersionDescriptions)
                {
                    var url = $"/swagger/{description.GroupName}/swagger.json";
                    var name = description.GroupName.ToUpperInvariant();
                    options.SwaggerEndpoint(url, name);
                }
            });
        }

        app.UseHttpsRedirection();

        app.UseAuthorization();


        app.MapControllers();

        app.Run();
    }
}