using System.Net.Http.Headers;
using System.Net.Http.Json;
using System.Text;
using System.Text.Json;
using StandManager.Domain.DTO;
using StandManager.MailProcessor.Mail;
using StandManager.Service.Interfaces;

public class MailProcessor
{
    private readonly IManagerService _managerService;
    private readonly EmailConfig _config;

    public MailProcessor(IManagerService managerService, EmailConfig config)
    {
        _managerService = managerService;
        _config = config;
    }

    public async Task Process()
    {
        var list = await _managerService.MailQueueService.RicercaQueryable(x =>
            x.Eliminato == false && x.Sent == false && string.IsNullOrEmpty(x.Error), solaLettura:false);
        
        using var httpClient = new HttpClient();
        foreach (var mailQueue in list)
        {
            var email = new Email()
            {
                From = _config.From,
                Body = string.IsNullOrEmpty(mailQueue.Args) ? mailQueue.Body : string.Format(mailQueue.Body, mailQueue.Args?.Split(_config.MailSplitChar) ?? [""]),
                Cc = null,
                Subject = mailQueue.Subject,
                To = new(){"g.vitari@oaservice.it"} // mailQueue.ToList.Split(";").ToList()
            };
            var messageJson = JsonSerializer.Serialize(email);
            
            // multipart
            using var form = new MultipartFormDataContent();
            form.Add(
                new StringContent(messageJson, Encoding.UTF8, "application/json"),
                "messageJson"
            );
            
            //Attachments
            /*var filePath = @"C:\temp\test.pdf";
            var fileBytes = await File.ReadAllBytesAsync(filePath);

            var fileContent = new ByteArrayContent(fileBytes);
            fileContent.Headers.ContentType = MediaTypeHeaderValue.Parse("application/pdf");

            form.Add(
                fileContent,
                "attachments",
                Path.GetFileName(filePath)
            );*/
            try
            {
                var response = await httpClient.PostAsync(
                    _config.ServerAddress,
                    form
                );
                response.EnsureSuccessStatusCode();
                mailQueue.Sent = true;
                await _managerService.MailQueueService.Salva(mailQueue);
            }
            catch (Exception e)
            {
                mailQueue.Sent = false;
                mailQueue.Error = e.Message;
                await _managerService.MailQueueService.Salva(mailQueue);
            }
            
        }
        
        var a = list;
    }
}