using DigitalData.Core.Abstraction.Application.Repository;
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.Constants;
using EnvelopeGenerator.Domain.Entities;
using EnvelopeGenerator.Domain.Exceptions;
using Microsoft.EntityFrameworkCore;
using Microsoft.Extensions.Options;

namespace EnvelopeGenerator.Infrastructure.Notification;

public class EnvelopeNotificationService(IOptions<EmailAccount> EmailAccountOptions, IRepository<EmailTemplate> TempRepo) : IEnvelopeNotificationService
{    
    private async Task<EmailTemplate> GetTemplateAsync(EmailTemplateType templateType, CancellationToken cancel = default)
    {
        return await TempRepo.Where(t => t.Name == templateType.ToString()).FirstOrDefaultAsync(cancel)
            ?? throw new DataIntegrityException($"{templateType} email template not found");
    }

    public async Task Notify<TEnvelopeNotificationBase>(string email, TEnvelopeNotificationBase notification, CancellationToken cancel = default)
        where TEnvelopeNotificationBase : EnvelopeNotificationBase
    {
        var template = await GetTemplateAsync(notification.GetTemplateType(), cancel);
        await EmailSender.Send(new EmailContext()
        {
            Body = template.Body.ReplacePlaceholders(notification),
            Subject = template.Subject.ReplacePlaceholders(notification),
            Recipients = [email],
            Sender = EmailAccountOptions.Value,
            Attachments = notification.Attachments?.ToEmailAttachmentDto() ?? []
        });
    }
}