using System.ClientModel;
using System.Diagnostics;
using System.Text.Json.Nodes;
using Microsoft.AspNetCore.Mvc.ModelBinding;
using OpenAI.Models;
using OpenAI.RealtimeConversation;

var builder = WebApplication.CreateBuilder(args);

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

var app = builder.Build();

app.UseDefaultFiles();
app.MapStaticAssets();

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

app.UseHttpsRedirection();

HttpClient client = new();
string? apiKey = app.Configuration.GetValue<string>("API:OpenAI");
client.DefaultRequestHeaders.Clear();
client.DefaultRequestHeaders.Add("Authorization", $"Bearer {apiKey}");

app.MapGet("/ephemeral_token", async () =>
{
    if (apiKey == null)
        throw new Exception("API key not set");

#pragma warning disable OPENAI002

    var options = new
    {
        model = "gpt-4o-realtime-preview",
        modalities = new []{"audio", "text"},//ConversationContentModalities.Audio | ConversationContentModalities.Text,
        voice = "ballad",//ConversationVoice.Ballad,
        // TODO: Vernünfigte Werte suchen
        //turn_detection = new {

        //}//ConversationTurnDetectionOptions.CreateServerVoiceActivityTurnDetectionOptions(0.5f, TimeSpan.FromMilliseconds(300), TimeSpan.FromMilliseconds(500), true)
    };

#pragma warning restore OPENAI002

    try
    {
        JsonContent content = JsonContent.Create(options);
        HttpResponseMessage response = await client.PostAsync("https://api.openai.com/v1/realtime/sessions", content);

        Console.WriteLine($"Failed to create session: {response.RequestMessage.Content.ReadAsStringAsync().Result}");
        if (response.IsSuccessStatusCode)
        {
            var v = await response.Content.ReadFromJsonAsync<JsonObject>();

            string? ephemeralToken = v?["client_secret"]?["value"]?.GetValue<string>();
            double? expiresAt = v?["client_secret"]?["expires_at"]?.GetValue<double>();
            return
            new {
                ephemeralToken,
                expiresAt,
            };
        }
        else
        {
            Console.WriteLine($"Failed to create session: {response}");
        }
    }
    catch (Exception e)
    {
        Console.WriteLine(e);
        throw;
    }

    return null;
}).WithName("GetEphemeralToken");

app.MapFallbackToFile("/index.html");

app.Run();