import { HttpApi, HttpApiEndpoint, HttpApiGroup } from "effect/unstable/httpapi";
import { Schema } from "effect";

// ---------------------------------------------------------------------------
// Public system API — unauthenticated status endpoints served under /api.
//
//   GET /api/health        readiness probe (used by the container healthcheck)
//   GET /api/setup-status  whether the instance still needs first-run setup, so
//                          the pre-login SPA can route a fresh operator to /setup
//   GET /api/auth-config   which SSO sign-in providers are configured, so the
//                          login page knows which provider buttons to render
//
// All are deliberately unauthenticated and return only booleans/status — no
// sensitive data — so they can be read before anyone has signed in.
// ---------------------------------------------------------------------------

export class SystemError extends Schema.TaggedErrorClass<SystemError>()(
  "SystemError",
  { message: Schema.String },
  { httpApiStatus: 500 },
) {}

export const HealthResponse = Schema.Struct({ status: Schema.String });
export const SetupStatusResponse = Schema.Struct({ needsSetup: Schema.Boolean });
export const InviteStatusResponse = Schema.Struct({ valid: Schema.Boolean });
// Provider ids + display names only — never credentials or allowlists.
export const AuthConfigResponse = Schema.Struct({
  ssoProviders: Schema.Array(Schema.Struct({ id: Schema.String, name: Schema.String })),
});

const InviteStatusParams = { code: Schema.String };

export const SystemApi = HttpApiGroup.make("system")
  .add(
    HttpApiEndpoint.get("health", "/health", {
      success: HealthResponse,
      error: [SystemError],
    }),
  )
  .add(
    HttpApiEndpoint.get("setupStatus", "/setup-status", {
      success: SetupStatusResponse,
      error: [SystemError],
    }),
  )
  .add(
    HttpApiEndpoint.get("authConfig", "/auth-config", {
      success: AuthConfigResponse,
      error: [SystemError],
    }),
  )
  .add(
    HttpApiEndpoint.get("inviteStatus", "/invite-status/:code", {
      params: InviteStatusParams,
      success: InviteStatusResponse,
      error: [SystemError],
    }),
  );

export const SystemHttpApi = HttpApi.make("executor-self-host-system").add(SystemApi);