using Microsoft.Extensions.Options;

namespace MxGateway.Server.Configuration;

public sealed class GatewayConfigurationProvider(IOptions<GatewayOptions> options) : IGatewayConfigurationProvider
{
    public const string RedactedValue = "[redacted]";

    public EffectiveGatewayConfiguration GetEffectiveConfiguration()
    {
        GatewayOptions value = options.Value;

        return new EffectiveGatewayConfiguration(
            Authentication: new EffectiveAuthenticationConfiguration(
                Mode: value.Authentication.Mode.ToString(),
                SqlitePath: value.Authentication.SqlitePath,
                PepperSecretName: RedactedValue,
                RunMigrationsOnStartup: value.Authentication.RunMigrationsOnStartup),
            Worker: new EffectiveWorkerConfiguration(
                ExecutablePath: value.Worker.ExecutablePath,
                WorkingDirectory: value.Worker.WorkingDirectory,
                RequiredArchitecture: value.Worker.RequiredArchitecture.ToString(),
                StartupTimeoutSeconds: value.Worker.StartupTimeoutSeconds,
                ShutdownTimeoutSeconds: value.Worker.ShutdownTimeoutSeconds,
                HeartbeatIntervalSeconds: value.Worker.HeartbeatIntervalSeconds,
                HeartbeatGraceSeconds: value.Worker.HeartbeatGraceSeconds,
                MaxMessageBytes: value.Worker.MaxMessageBytes),
            Sessions: new EffectiveSessionConfiguration(
                DefaultCommandTimeoutSeconds: value.Sessions.DefaultCommandTimeoutSeconds,
                MaxSessions: value.Sessions.MaxSessions,
                MaxPendingCommandsPerSession: value.Sessions.MaxPendingCommandsPerSession,
                DefaultLeaseSeconds: value.Sessions.DefaultLeaseSeconds,
                LeaseSweepIntervalSeconds: value.Sessions.LeaseSweepIntervalSeconds,
                AllowMultipleEventSubscribers: value.Sessions.AllowMultipleEventSubscribers),
            Events: new EffectiveEventConfiguration(
                QueueCapacity: value.Events.QueueCapacity,
                BackpressurePolicy: value.Events.BackpressurePolicy.ToString()),
            Dashboard: new EffectiveDashboardConfiguration(
                Enabled: value.Dashboard.Enabled,
                PathBase: value.Dashboard.PathBase,
                RequireAdminScope: value.Dashboard.RequireAdminScope,
                AllowAnonymousLocalhost: value.Dashboard.AllowAnonymousLocalhost,
                SnapshotIntervalMilliseconds: value.Dashboard.SnapshotIntervalMilliseconds,
                RecentFaultLimit: value.Dashboard.RecentFaultLimit,
                RecentSessionLimit: value.Dashboard.RecentSessionLimit,
                ShowTagValues: value.Dashboard.ShowTagValues),
            Protocol: new EffectiveProtocolConfiguration(
                value.Protocol.WorkerProtocolVersion,
                value.Protocol.MaxGrpcMessageBytes));
    }
}