using System.Net.Http.Json;
using Volo.Abp.Settings;

namespace Sozsoft.Sender.Telegram;

public interface ITelegramHttpClient
{
    Task<TelegramSendResultDto> SendMessageAsync(string ChatId, string Message);
}

public sealed class TelegramHttpClient : ITelegramHttpClient, IDisposable
{
    private readonly HttpClient httpClient;
    private readonly ISettingProvider settingProvider;

    public TelegramHttpClient(
        HttpClient httpClient,
        ISettingProvider settingProvider)
    {
        this.httpClient = httpClient;
        this.settingProvider = settingProvider;
    }

    public async Task<TelegramSendResultDto> SendMessageAsync(string ChatId, string Message)
    {
        var url = await settingProvider.GetOrNullAsync(TelegramSettingNames.Url);
        var botToken = await settingProvider.GetOrNullAsync(TelegramSettingNames.BotToken);
        var parseMode = await settingProvider.GetOrNullAsync(TelegramSettingNames.ParseMode);

        var response = await httpClient.PostAsJsonAsync($"{url.TrimEnd('/')}/bot{botToken}/sendMessage",
            new TelegramPostMessageInput
            {
                chat_id = ChatId,
                text = Message,
                parse_mode = parseMode.IsNullOrWhiteSpace() ? null : parseMode,
                disable_web_page_preview = true
            });

        // Bot API hatayı 4xx gövdesinde açıklar; durum kodunu fırlatmak açıklamayı kaybettirir.
        return await response.Content.ReadFromJsonAsync<TelegramSendResultDto>();
    }

    public void Dispose() => httpClient?.Dispose();
}