import type { Effect } from "effect";import { Schema } from "effect"; import type { Connection } from "./connection";import type { StorageFailure } from "./fuma-runtime";import {  type AuthTemplateSlug,  type ConnectionName,  type IntegrationSlug,  OAuthClientSlug,  OAuthState,  type Owner,} from "./ids"; /* The v2 OAuth surface contracts. OAuth is a credential mechanism, not an * integration type. A client is a registered app; running its flow mints a * Connection. The client is self-contained (carries its own endpoints) and * integration-independent, so the same app can back connections on whatever * integrations share that provider. * * The OAuth 2.1 *implementation* (PKCE, DCR, token exchange + refresh) lives in * `oauth-helpers` / `oauth-discovery` / `oauth-service`; these are the public * input/output shapes the executor's `oauth.*` namespace speaks. */ export type OAuthGrant = "authorization_code" | "client_credentials"; /** Provider OAuth config an integration declares as one of its auth templates — *  what to request. (The flow itself runs off the self-contained OAuthClient.) *  Keyed `kind: "oauth2"` like every auth method across the plugins. */export interface OAuthAuthentication {  readonly slug: AuthTemplateSlug;  readonly kind: "oauth2";  readonly authorizationUrl: string;  readonly tokenUrl: string;  /** RFC 8707 Resource Indicator to bind the OAuth flow to this protected   *  resource, when discovered from protected-resource metadata. */  readonly resource?: string | null;  readonly scopes: readonly string[];  /** True when the authorization server supports OAuth Client ID Metadata   *  Document (CIMD). The local OAuth client is then a public PKCE client whose   *  `client_id` is this host's metadata-document URL, not a provider-side   *  registered app id. */  readonly supportsClientIdMetadataDocument?: boolean;} /** A registered OAuth app — pure app identity: clientId/secret + its endpoints. *  Owner-scoped: a shared org app or a user's own BYO app. The app does NOT carry *  scopes — what to request is the INTEGRATION's concern (`OAuthAuthentication. *  scopes`, surfaced via the declared auth method), so the same app can back any *  integration without pinning a scope set. */export interface OAuthClient {  readonly owner: Owner;  readonly slug: OAuthClientSlug;  readonly authorizationUrl: string;  readonly tokenUrl: string;  readonly grant: OAuthGrant;  readonly clientId: string;  /** The literal client secret. Stored out-of-band in the credential provider   *  (vault item id), never inline. Empty string for public / PKCE clients. */  readonly clientSecret: string;  /** RFC 8707 Resource Indicator (MCP). Carried so the refresh request can keep   *  the re-minted token bound to the same resource. Null/omitted otherwise. */  readonly resource?: string | null;} export type OAuthClientOrigin =  | { readonly kind: "manual" }  | {      readonly kind: "dynamic_client_registration";      readonly integration?: IntegrationSlug | null;    }; export type CreateOAuthClientInput = OAuthClient & {  readonly origin?: OAuthClientOrigin;}; /** Metadata-only projection of a registered client for listing in the UI. *  Deliberately omits `clientSecret` — the secret is never returned over the *  read surface. `clientId` is included (it is not a secret; it is sent in the *  authorize URL the user's browser visits). */export interface OAuthClientSummary {  readonly owner: Owner;  readonly slug: OAuthClientSlug;  readonly grant: OAuthGrant;  readonly authorizationUrl: string;  readonly tokenUrl: string;  readonly resource?: string | null;  readonly clientId: string;  readonly origin: OAuthClientOrigin;} /** Flow-aware result of `oauth.start` — the status says what's next. */export type ConnectResult =  | { readonly status: "connected"; readonly connection: Connection }  | {      readonly status: "redirect";      readonly authorizationUrl: string;      readonly state: OAuthState;    }; /** Start a flow through a client to mint a connection for one integration. *  `template` is the integration's oauth template the minted token is applied *  through. */export interface OAuthStartInput {  readonly client: OAuthClientSlug;  /** The owner that owns `client`. Supplied explicitly (the picker knows it), so   *  a Personal connection can be minted through a shared Workspace app without   *  any owner-derivation rule. A Workspace connection must use a Workspace app. */  readonly clientOwner: Owner;  /** The owner the minted CONNECTION is saved under (may differ from `clientOwner`). */  readonly owner: Owner;  readonly name: ConnectionName;  readonly integration: IntegrationSlug;  readonly template: AuthTemplateSlug;  readonly identityLabel?: string | null;  /** Browser-facing callback URL for this flow. Defaults to the executor's configured redirectUri. */  readonly redirectUri?: string | null;} export interface OAuthCompleteInput {  readonly state: OAuthState;  readonly code: string;  /** Non-standard regional host the authorization server returns on the   *  callback (Datadog's `domain`/`site` params) so the code is redeemed at the   *  org's actual region rather than the statically advertised one. Used only   *  when it is a sibling subdomain of the client's configured token host. */  readonly callbackDomain?: string | null;} /** Probe a base/issuer URL for OAuth 2.1 authorization-server metadata so the *  onboarding UI can pre-fill a client's endpoints. */export interface OAuthProbeInput {  readonly url: string;} export interface OAuthProbeResult {  readonly authorizationUrl: string;  readonly tokenUrl: string;  /** RFC 8707 resource indicator discovered from protected-resource metadata.   *  Persist this on DCR clients so authorize/token/refresh requests stay bound   *  to the protected resource. */  readonly resource?: string | null;  readonly scopesSupported?: readonly string[];  /** Whether the server advertises dynamic client registration (RFC 7591). */  readonly registrationEndpoint?: string | null;  /** RFC 8414 `token_endpoint_auth_methods_supported`. Surfaced so DCR can pick   *  a public ("none") client when the server allows it. */  readonly tokenEndpointAuthMethodsSupported?: readonly string[];  /** Draft OAuth Client ID Metadata Document support, advertised by providers   *  such as PostHog as `client_id_metadata_document_supported`. */  readonly clientIdMetadataDocumentSupported?: boolean;} /** Mint an OAuth client via RFC 7591 Dynamic Client Registration and persist it. *  The user pastes NO client id/secret — the authorization server mints a *  (public, PKCE) client which is stored as an owner-scoped `oauth_client`. */export interface RegisterDynamicClientInput {  readonly owner: Owner;  readonly slug: OAuthClientSlug;  /** RFC 7591 registration endpoint advertised by the authorization server. */  readonly registrationEndpoint: string;  readonly authorizationUrl: string;  readonly tokenUrl: string;  /** RFC 8707 Resource Indicator (MCP). Persisted on the minted client when known. */  readonly resource?: string | null;  readonly scopes: readonly string[];  /** Auth methods the server advertises. When it allows `none` a public   *  (PKCE-only, no secret) client is registered; otherwise `client_secret_post`. */  readonly tokenEndpointAuthMethodsSupported?: readonly string[];  /** Human label for the registered app (RFC 7591 `client_name`). */  readonly clientName?: string;  /** Browser-facing callback URL to register. Defaults to the executor's configured redirectUri. */  readonly redirectUri?: string | null;  /** Integration that requested this dynamic client, when known. */  readonly originIntegration?: IntegrationSlug | null;} export class OAuthStartError extends Schema.TaggedErrorClass<OAuthStartError>()("OAuthStartError", {  message: Schema.String,}) {} export class OAuthCompleteError extends Schema.TaggedErrorClass<OAuthCompleteError>()(  "OAuthCompleteError",  {    message: Schema.String,    /** True when the auth-code exchange failed in a way the user must restart. */    restartRequired: Schema.optional(Schema.Boolean),  },) {} export class OAuthProbeError extends Schema.TaggedErrorClass<OAuthProbeError>()("OAuthProbeError", {  message: Schema.String,}) {} export class OAuthRegisterDynamicError extends Schema.TaggedErrorClass<OAuthRegisterDynamicError>()(  "OAuthRegisterDynamicError",  { message: Schema.String },) {} export class OAuthSessionNotFoundError extends Schema.TaggedErrorClass<OAuthSessionNotFoundError>()(  "OAuthSessionNotFoundError",  { state: OAuthState },) {} /** The OAuth surface the executor's `oauth.*` namespace and `ctx.oauth` expose. *  Implemented by `makeOAuthService` (oauth-service.ts), wired by the executor *  with the deps it needs to mint connections. */export interface OAuthService {  readonly createClient: (    input: CreateOAuthClientInput,  ) => Effect.Effect<OAuthClientSlug, StorageFailure>;  /** Mint a client via RFC 7591 Dynamic Client Registration (no pre-shared   *  client id/secret) and persist it as an owner-scoped `oauth_client`. */  readonly registerDynamicClient: (    input: RegisterDynamicClientInput,  ) => Effect.Effect<OAuthClientSlug, OAuthRegisterDynamicError | StorageFailure>;  /** All registered clients visible to the caller (their org's shared clients +   *  their own user clients), as metadata-only summaries — never the secret. */  readonly listClients: () => Effect.Effect<readonly OAuthClientSummary[], StorageFailure>;  /** Permanently remove a registered OAuth app, keyed by (owner, slug). The   *  owner policy on `oauth_client` prevents removing another subject's user app.   *  Idempotent: removing an already-gone app succeeds. Connections that   *  referenced the slug keep their stored value and fail at the next token   *  refresh, prompting a reconnect — this op never cascades into connections. */  readonly removeClient: (    owner: Owner,    slug: OAuthClientSlug,  ) => Effect.Effect<void, StorageFailure>;  readonly start: (    input: OAuthStartInput,  ) => Effect.Effect<ConnectResult, OAuthStartError | StorageFailure>;  readonly complete: (    input: OAuthCompleteInput,  ) => Effect.Effect<Connection, OAuthCompleteError | OAuthSessionNotFoundError | StorageFailure>;  readonly cancel: (state: OAuthState) => Effect.Effect<void, StorageFailure>;  readonly probe: (    input: OAuthProbeInput,  ) => Effect.Effect<OAuthProbeResult, OAuthProbeError | StorageFailure>;}