using DeepDrftPublic.Client.Common;
using DeepDrftPublic.Client.Services;

namespace DeepDrftPublic.Services;

/// <summary>
/// Server-side prerender reader for public-site listener settings (Phase 18 wave 18.6), the sibling of
/// <see cref="DarkModeService"/>. Reads each preference's cookie via <see cref="IHttpContextAccessor"/>
/// during prerender and seeds the scoped <see cref="PublicSiteSettings"/>, which <c>MainLayout</c> then
/// rounds through <c>PersistentComponentState</c> into WASM — so the first paint already reflects the
/// listener's choice with no wrong-default flash (the streaming-quality analogue of the wrong-theme fix).
/// Inherits the shared cookie names + parsers from <see cref="SettingsServiceBase"/> so the server read and
/// the client write agree on one wire format.
/// </summary>
public class SettingsService(PublicSiteSettings settings, IHttpContextAccessor httpAccessor) : SettingsServiceBase
{
    public void CheckSettings()
    {
        var cookies = httpAccessor.HttpContext?.Request.Cookies;
        if (cookies is null) return;

        cookies.TryGetValue(StreamQualityCookieName, out var streamQuality);
        settings.StreamQuality = ParseStreamQuality(streamQuality);
    }
}