using AuthApi.Services;
using Microsoft.AspNetCore.Authentication.JwtBearer;
using Microsoft.IdentityModel.Tokens;
using System.Text;
using SystemX.Core.Services;
using WebApi.Library.Config;

string configDir = @"../../Config";
string configFileName = "WebApi.AuthApi.Config.json";

//raed log4net configs
if (LogXnet.ReadConfig(@$"{configDir}/LogXnetConfig.json") == true)
{
    LogXnet.WriteLine("LogXnet Init Success");
}
else
{
    Console.WriteLine("LogXnet Init Failed");
    return;
}

var builder = WebApplication.CreateBuilder(args);

// Add services to the container.
//singleton
builder.Services.AddSingleton<ConfigService<WebApiConfig>>();

//scoped
builder.Services.AddScoped<AuthService>();

//db
builder.Services.AddSingleton<DbContextProvider>(); // Generic µî·Ï

builder.Services.AddControllers();
// Learn more about configuring Swagger/OpenAPI at https://aka.ms/aspnetcore/swashbuckle
builder.Services.AddEndpointsApiExplorer();
builder.Services.AddSwaggerGen();
builder.Services.AddHttpContextAccessor();

//config preload, auth set
ConfigService<WebApiConfig> preloadConfig = new ConfigService<WebApiConfig>();
if (preloadConfig.OpenConfig($@"{configDir}/{configFileName}") == true)
{
    var config = preloadConfig.GetConfig();

    //auth
    builder.Services
    .AddAuthentication(option =>
    {
        option.DefaultAuthenticateScheme = JwtBearerDefaults.AuthenticationScheme;
        option.DefaultChallengeScheme = JwtBearerDefaults.AuthenticationScheme;
    })
    .AddJwtBearer(options =>
    {
        options.TokenValidationParameters = new TokenValidationParameters
        {
            ValidateIssuer = true,
            ValidateAudience = true,
            ValidateLifetime = true,
            ValidateIssuerSigningKey = true,
            ClockSkew = TimeSpan.Zero,
            ValidIssuer = $"{config?.Auth?.issuer}",
            ValidAudience = $"{config?.Auth?.audience}",
            IssuerSigningKey = new SymmetricSecurityKey(Encoding.UTF8.GetBytes($"{config?.Auth?.accessTokenSecret}"))
        };
    });    
}
else
{
    LogXnet.WriteLine("Config Preload Load Error.", LogXLabel.Error);
    return;
}

var app = builder.Build();

//read api config and set
string serverUrl = string.Empty;
var configService = app.Services.GetService<ConfigService<WebApiConfig>>();
bool isIIS = false;

if (configService?.OpenConfig($@"{configDir}/{configFileName}") == true)
{
    LogXnet.WriteLine("WebApi Config Success.");
    var apiConfig = ConfigService<WebApiConfig>.Config;
    if (apiConfig != null)
    {
        serverUrl = $"{apiConfig?.Server?.Address}:{apiConfig?.Server?.Port}";
        isIIS = apiConfig!.Server.IIS;
        
        using(var scoped = app.Services.CreateScope())
        {
            var dbProvider = scoped.ServiceProvider.GetRequiredService<DbContextProvider>();
            dbProvider?.SetDBList(apiConfig?.DataBase);
        }        
    }
}
else
{
    LogXnet.WriteLine("WebApi Config Error.");
    return;
}

// Configure the HTTP request pipeline.
if (app.Environment.IsDevelopment())
{
    LogXnet.WriteLine($"IsDevelopment:{app.Environment.IsDevelopment()}");
    LogXnet.WriteLine($"Swagger Url: {serverUrl}/swagger");
    app.UseSwagger();
    app.UseSwaggerUI();
}

app.UseAuthentication();
app.UseHttpsRedirection();
app.UseAuthorization();

app.MapControllers();

if (isIIS == true)
{
    app.Run();
}
else
{
    LogXnet.WriteLine($"Operation Url: {serverUrl}");
    app.Run($"{serverUrl}");
}