using DigitalData.Core.Abstraction.Application.Repository;
using DigitalData.Core.Exceptions;
using DigitalData.MessagingService.Application.Common.Dto;
using DigitalData.MessagingService.Client;
using DigitalData.MessagingService.Domain.Entities;
using EnvelopeGenerator.Application.Common.Interfaces.Services.Notification;
using EnvelopeGenerator.Domain.Entities;
using MediatR;
using Microsoft.EntityFrameworkCore;
using Microsoft.Extensions.Options;

namespace EnvelopeGenerator.Infrastructure.Notification;

public class EnvelopeNotificationService(IOptions<EmailAccount> EmailAccountOptions, IRepository<EmailTemplate> TempRepo) : IEnvelopeNotificationService
{    
    public async Task Notify(string email, DocumentSignedNotification documentSigned, CancellationToken cancel = default)
    {
        var template = await TempRepo.Where(t => t.Name == "DocumentCompleted").FirstOrDefaultAsync(cancel)
            ?? throw new NotFoundException("DocumentCompleted email template not found");
        var subjectTemplate = Replace(template.Subject, documentSigned);
        var bodyTemplate = Replace(template.Body, documentSigned);

        await EmailSender.Send(new EmailContext()
        {
            Body = bodyTemplate,
            Subject = subjectTemplate,
            Recipients = [email],
            Sender = EmailAccountOptions.Value,
            Attachments = [new EmailAttachmentDto()
            {
                FileName = "unterzeichnetes-dokument.pdf",
                Content = documentSigned.Attachment
            }]
        });
    }

    private static string Replace(string template, DocumentSignedNotification documentSigned)
    {
        return template
            .Replace("[DOCUMENT_TITLE]", documentSigned.DocumentTitle)
            .Replace("[NAME_PORTAL]", documentSigned.NamePortal)
            .Replace("[NAME_RECEIVER]", documentSigned.NameReceiver);
    }
}