namespace BulkArchiveMailer.Core
{
    /// <summary>One editable Subject + BodyHtml pair.</summary>
    public sealed class MailTemplate
    {
        public string Subject { get; set; } = "";

        public string BodyHtml { get; set; } = "";
    }

    /// <summary>The two named template keys used throughout the tool (matches ArchiveKind, and the JSON config's "templates" object).</summary>
    public static class MailTemplateKeys
    {
        public const string SshAccess = "ssh_access";
        public const string ConfigUpdate = "config_update";

        public static string For(ArchiveKind kind) => kind == ArchiveKind.SshAccess ? SshAccess : ConfigUpdate;
    }

    /// <summary>Both named templates together, as used by ArchiveScanner to render a SendJob's Subject/BodyHtml.</summary>
    public sealed class MailTemplateSet
    {
        public MailTemplate SshAccess { get; set; } = new MailTemplate();

        public MailTemplate ConfigUpdate { get; set; } = new MailTemplate();

        public MailTemplate Get(ArchiveKind kind) => kind == ArchiveKind.SshAccess ? SshAccess : ConfigUpdate;

        /// <summary>
        /// The two templates as shipped in config.default.json (embedded
        /// resource), independent of anything the user has saved to
        /// %APPDATA%\BulkArchiveMailer\config.json. Mainly useful for a
        /// "reset to defaults" action in SettingsForm.
        /// </summary>
        public static MailTemplateSet LoadDefaults() => AppSettings.LoadDefaults().ToTemplateSet();
    }
}