using Lagrange.OneBot.Message.Entity;
using Microsoft.Extensions.Configuration;
using Microsoft.Extensions.Logging;
using System.Net.Http.Json;
using System.Text.Json.Nodes;

namespace Lagrange.OneBot.Utility;

public class MusicSigner
{
    private static string? _signServer;

    private readonly static HttpClient _client = new();

    public MusicSigner(IConfiguration config, ILogger<MusicSigner> logger)
    {
        _signServer = config["MusicSignServerUrl"] ?? "";

        if (string.IsNullOrEmpty(_signServer))
        {
            logger.LogWarning("MusicSignServer is not available, sign may be failed");
        }
        else
        {
            logger.LogInformation("MusicSignServer Service is successfully established");
        }
    }


    public static string? Sign(MusicSegment musicSegment)
    {
        if (string.IsNullOrEmpty(_signServer)) return null;

        JsonObject payload;
        if (musicSegment.Type != null)
        {
            payload = new JsonObject()
            {
                { "type" , musicSegment.Type },
                { "url" , musicSegment.Url },
                { "audio" , musicSegment.Audio },
                { "title" , musicSegment.Title },
                { "image" , musicSegment.Image },
                { "singer" , musicSegment.Content },
            };
        }
        else
        {
            payload = new JsonObject()
            {
                { "url" , musicSegment.Url },
                { "audio" , musicSegment.Audio },
                { "title" , musicSegment.Title },
                { "image" , musicSegment.Image },
                { "singer" , musicSegment.Content },
                { "appid", ulong.Parse(musicSegment.Appid) },
                { "sign", musicSegment.Sign },
                { "package_name", musicSegment.PackageName },
            };
        }

        if (musicSegment.Id.Length > 0)
        {
            payload.Add("id", musicSegment.Id);
        }

        try
        {
            var message = _client.PostAsJsonAsync(_signServer, payload).Result;
            return message.Content.ReadAsStringAsync().Result;
        }
        catch
        {
            return null;
        }
    }
}