using GB5Shared.DTO.Framework.Login;

namespace GB5Shared.Export
{
    /// <summary>
    /// Per-export color/font theme, shared by every report-export format (Excel, native PDF). Sourced
    /// from <see cref="LoginDTO"/>'s partner/white-label branding fields (already resolved at login from
    /// TPARTNERBRAND/TPARTNERPRODUCTBRAND — no extra query needed here), which already default to a
    /// fixed professional blue/Inter when no partner brand is configured for the client.
    /// </summary>
    public sealed class ReportTheme
    {
        public string PrimaryColorHex { get; init; } = "#1F4E78";
        public string AccentColorHex { get; init; } = "#2E75B6";
        public string FontFamily { get; init; } = "Calibri";

        public static ReportTheme FromLogin(LoginDTO? login)
        {
            var fallback = new ReportTheme();
            if (login == null) return fallback;

            return new ReportTheme
            {
                PrimaryColorHex = string.IsNullOrWhiteSpace(login.PrimaryColor) ? fallback.PrimaryColorHex : login.PrimaryColor,
                AccentColorHex = string.IsNullOrWhiteSpace(login.AccentColor) ? fallback.AccentColorHex : login.AccentColor,
                FontFamily = string.IsNullOrWhiteSpace(login.FontFamily) ? fallback.FontFamily : login.FontFamily,
            };
        }
    }
}