using FinalFactory.Rendezvous.Contracts;

namespace FinalFactory.Rendezvous.Server.Provisioning;

internal sealed class ProvisioningOptions
{
    public const string SectionName = "Rendezvous:Provisioning";

    public string Issuer { get; set; } = string.Empty;
    public string Audience { get; set; } = string.Empty;
    public int ClockSkewSeconds { get; set; } = 30;
    public List<SigningKeyOptions> SigningKeys { get; set; } = [];
    public List<GamePolicyOptions> Games { get; set; } = [];
}

internal sealed class SigningKeyOptions
{
    public string KeyId { get; set; } = string.Empty;
    public string SecretReference { get; set; } = string.Empty;
    public List<PrincipalCredentialKind> CredentialKinds { get; set; } = [];
    public string? GameId { get; set; }
    public string? EnvironmentId { get; set; }
    public DateTimeOffset NotBefore { get; set; }
    public DateTimeOffset SignUntil { get; set; }
    public DateTimeOffset VerifyUntil { get; set; }
    public bool Revoked { get; set; }
}

internal sealed class GamePolicyOptions
{
    public string GameId { get; set; } = string.Empty;
    public string EnvironmentId { get; set; } = string.Empty;
    public bool Enabled { get; set; } = true;
    public List<uint> ProtocolVersions { get; set; } = [];
    public List<string> Regions { get; set; } = [];
    public List<ListingVisibility> VisibilityModes { get; set; } = [];
    public List<PublisherTrustMode> PublisherTrustModes { get; set; } = [];
    public Dictionary<string, int> MetadataValueMaxBytes { get; set; } =
        new(StringComparer.Ordinal);
    public List<string> RequiredMetadataKeys { get; set; } = [];
    public int MetadataMaxBytes { get; set; } = ContractLimits.MetadataMaxBytes;
    public int MetadataMaxKeys { get; set; } = ContractLimits.MetadataMaxKeys;
    public int MaxListingsPerPrincipal { get; set; } = 100;
    public int MaxAnonymousListingsPerAddress { get; set; } = 2;
    public int MaxActiveJoinAttempts { get; set; } = 1_000;
    public FallbackPolicyMode FallbackPolicy { get; set; }
}

internal enum FallbackPolicyMode
{
    Disabled = 0,
    DedicatedEndpointAllowed = 1,
}

internal static class ProvisioningLimits
{
    public const int MaxGamePolicies = 1_024;
    public const int MaxSigningKeys = 128;
    public const int MaxProtocolVersionsPerPolicy = 64;
    public const int MaxRegionsPerPolicy = 32;
    public const int MaxListingsPerPrincipal = 25_000;
    public const int MaxActiveJoinAttemptsPerPolicy = 10_000;
}

internal sealed class ProvisioningConfigurationException : Exception
{
    public ProvisioningConfigurationException(string message)
        : base(message)
    {
    }
}