namespace ControlPlane.Core.Models;

/// <summary>
/// Defines the exact infrastructure composition for a provisioned tenant.
/// Each component is configured independently — the TenantTier gates which
/// ComponentMode values are available in the UI.
///
/// Allowed modes per tier:
///
///                  | Trial | Shared | Dedicated | Enterprise |
/// SharedPlatform   |  ✅   |  ✅    |    ✅     |    ✅      |
/// Bundled          |  ✅   |  ❌    |    ❌     |    ❌      |
/// OwnContainer     |  ❌   |  ❌    |    ✅     |    ✅      |
/// VpsDocker        |  ❌   |  ❌    |    ❌     |    ✅      |
/// VpsBareMetal     |  ❌   |  ❌    |    ❌     |    ✅      |
/// </summary>
public class StackConfig
{
    public ComponentMode Postgres { get; set; } = ComponentMode.SharedPlatform;
    public ComponentMode Keycloak { get; set; } = ComponentMode.SharedPlatform;
    public ComponentMode Vault    { get; set; } = ComponentMode.SharedPlatform;
    public ComponentMode Minio    { get; set; } = ComponentMode.SharedPlatform;

    /// <summary>Returns a default StackConfig for the given tier.</summary>
    public static StackConfig DefaultForTier(TenantTier tier) => tier switch
    {
        TenantTier.Trial      => new StackConfig
                                 {
                                     Postgres = ComponentMode.Bundled,
                                     Keycloak = ComponentMode.SharedPlatform,
                                     Vault    = ComponentMode.SharedPlatform,
                                     Minio    = ComponentMode.SharedPlatform
                                 },
        TenantTier.Shared     => new StackConfig(),
        TenantTier.Dedicated  => new StackConfig
                                 {
                                     Postgres = ComponentMode.OwnContainer,
                                     Keycloak = ComponentMode.OwnContainer,
                                     Vault    = ComponentMode.OwnContainer,
                                     Minio    = ComponentMode.OwnContainer
                                 },
        TenantTier.Enterprise => new StackConfig
                                 {
                                     Postgres = ComponentMode.VpsDocker,
                                     Keycloak = ComponentMode.VpsDocker,
                                     Vault    = ComponentMode.VpsDocker,
                                     Minio    = ComponentMode.VpsDocker
                                 },
        _                     => new StackConfig()
    };
}