namespace RR3CommunityServer.Middleware;

public class SynergyHeadersMiddleware
{
    private readonly RequestDelegate _next;
    private readonly ILogger<SynergyHeadersMiddleware> _logger;

    public SynergyHeadersMiddleware(RequestDelegate next, ILogger<SynergyHeadersMiddleware> logger)
    {
        _next = next;
        _logger = logger;
    }

    public async Task InvokeAsync(HttpContext context)
    {
        // Log incoming Synergy headers
        var sessionId = context.Request.Headers["EAM-SESSION"].FirstOrDefault();
        var userId = context.Request.Headers["EAM-USER-ID"].FirstOrDefault();
        var sellId = context.Request.Headers["EA-SELL-ID"].FirstOrDefault();
        var sdkVersion = context.Request.Headers["SDK-VERSION"].FirstOrDefault();

        _logger.LogInformation(
            "Synergy Request: Path={Path}, Session={Session}, User={User}, Sell={Sell}, SDK={SDK}",
            context.Request.Path,
            sessionId ?? "none",
            userId ?? "none",
            sellId ?? "none",
            sdkVersion ?? "none"
        );

        // Store in context for controllers
        context.Items["EAM-SESSION"] = sessionId;
        context.Items["EAM-USER-ID"] = userId;
        context.Items["EA-SELL-ID"] = sellId;

        await _next(context);
    }
}

public class SessionValidationMiddleware
{
    private readonly RequestDelegate _next;
    private readonly ILogger<SessionValidationMiddleware> _logger;

    // Paths that don't require session validation
    private static readonly HashSet<string> PublicPaths = new()
    {
        "/director/api/android/getDirectionByPackage",
        "/user/api/android/getDeviceID",
        "/user/api/android/getAnonUid",
        "/swagger",
        "/health"
    };

    public SessionValidationMiddleware(RequestDelegate next, ILogger<SessionValidationMiddleware> logger)
    {
        _next = next;
        _logger = logger;
    }

    public async Task InvokeAsync(HttpContext context)
    {
        var path = context.Request.Path.Value ?? "";

        // Skip validation for public paths
        if (PublicPaths.Any(p => path.StartsWith(p, StringComparison.OrdinalIgnoreCase)))
        {
            await _next(context);
            return;
        }

        // For now, allow all requests (lenient for community server)
        // In production, validate session here
        await _next(context);
    }
}