using System.Text.Json.Serialization;

namespace qdr.app.studiou.orders2printpack.EmailStorage
{
    /// <summary>
    /// Represents an email template that can be used to send personalized emails to recipients.
    /// Templates support placeholder replacement for dynamic content such as download links,
    /// passwords, recipient information, and order details.
    /// 
    /// Common placeholders that can be used in Subject and Body:
    /// - {{DOWNLOAD_LINK}} - The download URL for the shared file
    /// - {{PASSWORD}} - The password required to access the download
    /// - {{RECIPIENT}} - The recipient's email address
    /// - {{ORDERS}} - Comma-separated list of order numbers
    /// </summary>
    public class EmailTemplate
    {
        /// <summary>
        /// Unique identifier/code for this email template.
        /// Used to reference specific templates in configuration or selection logic.
        /// Example: "STUDIO_PHOTOS", "ORDER_CONFIRMATION", etc.
        /// </summary>
        [JsonPropertyName("code")]
        [JsonRequired]
        public string Code { get; set; } = string.Empty;

        /// <summary>
        /// Email subject line template.
        /// Can contain placeholders that will be replaced with actual values
        /// when the email is prepared for sending.
        /// Example: "Your Studio Photos are Ready - Orders {{ORDERS}}"
        /// </summary>
        [JsonPropertyName("subject")]
        [JsonRequired]
        public string Subject { get; set; } = string.Empty;

        /// <summary>
        /// Email body template in HTML or plain text format.
        /// Supports placeholder replacement for personalization.
        /// Should include instructions for downloading files and using passwords.
        /// 
        /// Example body might include:
        /// - Greeting with {{RECIPIENT}}
        /// - Download instructions with {{DOWNLOAD_LINK}}
        /// - Password information with {{PASSWORD}}
        /// - Order reference with {{ORDERS}}
        /// </summary>
        [JsonPropertyName("body")]
        [JsonRequired]
        public string Body { get; set; } = string.Empty;
    }
}