using TarninaHub.Services;
using TarninaHub.Settings;

var builder = WebApplication.CreateBuilder(args);

var surrealSettings = builder.Configuration.GetSection("SurrealDb").Get<SurrealDbSettings>()
    ?? new SurrealDbSettings();

builder.Services.Configure<SurrealDbSettings>(builder.Configuration.GetSection("SurrealDb"));

// Learn more about configuring OpenAPI at https://aka.ms/aspnet/openapi
builder.Services.AddOpenApi();

builder.Services.AddControllers();

builder.Services.AddSingleton<IStorageService, StorageService>();

var surrealOptions = new SurrealDbOptions
{
    Endpoint = BuildEndpoint(surrealSettings),
    Namespace = surrealSettings.Namespace,
    Database = surrealSettings.Database,
};

if (string.IsNullOrWhiteSpace(surrealSettings.RemoteUrl))
{
    // Embedded RocksDB, persisted next to the running app (./data), never in memory.
    var dataDirectory = Path.Combine(AppContext.BaseDirectory, surrealSettings.DataDirectory);
    Directory.CreateDirectory(dataDirectory);

    builder.Services
        .AddSurreal(surrealOptions, ServiceLifetime.Singleton)
        .AddRocksDbProvider();
}
else
{
    // Remote SurrealDB server on its own dedicated port (used for sync with the frontend).
    surrealOptions.Username = surrealSettings.Username;
    surrealOptions.Password = surrealSettings.Password;

    builder.Services.AddSurreal(surrealOptions, ServiceLifetime.Singleton);
}

var app = builder.Build();

using (var scope = app.Services.CreateScope())
{
    var storageService = scope.ServiceProvider.GetRequiredService<IStorageService>();

    await storageService.InitializeAsync(CancellationToken.None);
}

// Configure the HTTP request pipeline.
if (app.Environment.IsDevelopment())
{
    app.MapOpenApi();
}
else
{
    app.UseHttpsRedirection();
}

app.UseDefaultFiles();
app.UseStaticFiles();

app.MapControllers();

app.MapFallbackToFile("index.html");

app.Run();

static string BuildEndpoint(SurrealDbSettings settings)
{
    if (!string.IsNullOrWhiteSpace(settings.RemoteUrl))
    {
        return settings.RemoteUrl;
    }

    var dataDirectory = Path.Combine(AppContext.BaseDirectory, settings.DataDirectory);

    return $"rocksdb://{dataDirectory.Replace('\\', '/')}";
}