namespace PowderCoating.Application.Interfaces;

/// <summary>
/// Represents a file to attach to an outbound email.
/// </summary>
public record EmailAttachment(byte[] Data, string Filename, string ContentType);

public interface IEmailService
{
    /// <summary>
    /// Sends a plain or HTML email, optionally with a single file attachment (used for invoice
    /// and quote PDFs). For multiple attachments such as job photos use
    /// <see cref="SendEmailWithAttachmentsAsync"/>.
    /// </summary>
    Task<(bool Success, string? ErrorMessage)> SendEmailAsync(
        string toEmail,
        string toName,
        string subject,
        string plainTextBody,
        string? htmlBody = null,
        byte[]? attachmentData = null,
        string? attachmentFilename = null,
        string? attachmentContentType = null,
        string? replyToEmail = null,
        string? replyToName = null);

    /// <summary>
    /// Sends an email with one or more file attachments (e.g. job photos). Callers are
    /// responsible for keeping total attachment size under SendGrid's 30 MB per-message limit.
    /// </summary>
    Task<(bool Success, string? ErrorMessage)> SendEmailWithAttachmentsAsync(
        string toEmail,
        string toName,
        string subject,
        string plainTextBody,
        string? htmlBody = null,
        IList<EmailAttachment>? attachments = null,
        string? replyToEmail = null,
        string? replyToName = null);
}