export const MINDSPACE_SERVER_ADAPTER_CONTRACT_VERSION = 2;

export const MINDSPACE_SERVER_ADAPTER_REQUIRED_CAPABILITIES = Object.freeze([
  'chat-save-authority',
  'public-finish-authority',
  'workspace-publication-delivery-authority',
  'scoped-workspace-tools',
]);

export const MINDSPACE_SERVER_ADAPTER_BINDINGS = Object.freeze({
  serviceFacade: Object.freeze(['prepareConversationPackageRead']),
  chatSaveService: Object.freeze([
    'createSharedHtml',
    'materializeWorkspaceHtml',
    'readWorkspaceHtml',
    'ensurePreviewThumbnail',
    'renderPreviewThumbnailSvg',
  ]),
  conversationArtifactService: Object.freeze([
    'registerChatDocxArtifact',
    'registerPublicHtmlArtifacts',
    'registerPublishedLongImageArtifact',
    'registerWorkspaceFileArtifact',
  ]),
  publicFinishService: Object.freeze([
    'ensureWechatFreshPageThumbnails',
    'materializeSessionEvent',
    'preparePageDataAfterFinish',
    'prepareWechatHtmlDelivery',
    'prepareWechatPageDataDelivery',
    'syncAfterFinish',
  ]),
  workspacePublicationDeliveryService:
    Object.freeze([
      'listRecentlyModifiedPublicHtml',
      'readOwnerPublicAsset',
      'renderLongImage',
      'resolveWorkspaceRequest',
      'validateRunDeliverables',
    ]),
  workspacePageDeliveryService:
    Object.freeze(['syncAndDeliver']),
  workspaceToolService: Object.freeze([
    'createDirectory',
    'editFile',
    'generateLongImage',
    'listDirectory',
    'publishPage',
    'readFile',
    'writeBinaryFile',
    'writeFile',
  ]),
  conversationPackageRegistry: Object.freeze([
    'readArtifactObject',
    'readManifestForSession',
  ]),
  assetService: Object.freeze([
    'cancelUpload',
    'claimUploadArtifactsForConversation',
    'completeUpload',
    'createChatAsset',
    'createUpload',
    'deleteAsset',
    'listAssets',
    'readAssetContent',
    'readPublicAssetContent',
    'renderAssetPreview',
    'renderAssetThumbnail',
    'syncWorkspaceAssets',
    'writeUploadContent',
    'expireStaleUploads',
  ]),
  pageService: Object.freeze([
    'createFromChat',
    'createPage',
    'deletePage',
    'findPageByRelativePath',
    'findPageBySourceAsset',
    'findPageBySourceMessage',
    'findPlazaContextByWorkspacePath',
    'getDeletePreview',
    'getPage',
    'listPages',
    'listVersions',
    'localizePrivateResources',
    'redactPage',
    'regenerateThumbnail',
    'renderDraftPreview',
    'renderPreview',
    'renderThumbnail',
    'rewriteHtmlDownloadLinksForPage',
    'updatePage',
    'uploadThumbnail',
  ]),
  pageSyncService: Object.freeze(['syncUserGeneratedPages']),
  pageLiveEditService: Object.freeze(['applyAgentPatch', 'bindSession', 'getRevisionSnapshot']),
  assetAgentService: Object.freeze(['applyAgentDelete']),
  publicationService: Object.freeze([
    'check',
    'cleanupExpiredUnconfirmedPublications',
    'getCurrent',
    'getPublicHomepage',
    'getStats',
    'offline',
    'publish',
    'refreshOnlinePublicationHtml',
    'resolvePrivateLink',
    'resolvePublic',
    'updatePublicationStatus',
  ]),
  cleanupService: Object.freeze(['listCandidates', 'runCleanup']),
  agentJobService: Object.freeze([
    'cancelJob',
    'claimJob',
    'claimNextJob',
    'completeJob',
    'createJob',
    'getAssetForJob',
    'getJob',
    'heartbeat',
    'listJobs',
    'reapStaleJobs',
    'retryJob',
  ]),
});

export const MINDSPACE_SERVER_ADAPTER_BINDING_KEYS = Object.freeze(
  Object.keys(MINDSPACE_SERVER_ADAPTER_BINDINGS),
);

export const MINDSPACE_SERVER_ADAPTER_REQUIRED_BINDINGS = Object.freeze({
  chatSaveService: Object.freeze([
    'createSharedHtml',
    'materializeWorkspaceHtml',
    'readWorkspaceHtml',
  ]),
  conversationArtifactService: Object.freeze([
    'registerPublicHtmlArtifacts',
    'registerWorkspaceFileArtifact',
  ]),
  publicFinishService: Object.freeze([
    'prepareWechatHtmlDelivery',
    'syncAfterFinish',
  ]),
  workspacePublicationDeliveryService: Object.freeze([
    'resolveWorkspaceRequest',
    'validateRunDeliverables',
  ]),
  workspaceToolService: Object.freeze([
    'readFile',
    'writeFile',
    'editFile',
    'publishPage',
    'writeBinaryFile',
  ]),
});

export function createMindSpaceServerAdapterContractPayload({
  adapter = {},
  serviceMeta = {},
  env = process.env,
} = {}) {
  return {
    contractVersion:
      MINDSPACE_SERVER_ADAPTER_CONTRACT_VERSION,
    service: 'mindspace-service',
    adapterKind: adapter.kind ?? null,
    implementationStatus:
      adapter.implementationStatus ?? null,
    buildId:
      serviceMeta.buildId ??
      env.MINDSPACE_SERVICE_BUILD_ID ??
      null,
    gitSha:
      serviceMeta.gitSha ??
      env.MINDSPACE_SERVICE_GIT_SHA ??
      null,
    builtAt:
      serviceMeta.builtAt ??
      env.MINDSPACE_SERVICE_BUILT_AT ??
      null,
    requiredCapabilities:
      MINDSPACE_SERVER_ADAPTER_REQUIRED_CAPABILITIES,
    requiredBindings:
      MINDSPACE_SERVER_ADAPTER_REQUIRED_BINDINGS,
    bindings: MINDSPACE_SERVER_ADAPTER_BINDINGS,
    bindingKeys: MINDSPACE_SERVER_ADAPTER_BINDING_KEYS,
  };
}

export function assertMindSpaceServerAdapterBindingContract(bindingKey, service) {
  const methods = MINDSPACE_SERVER_ADAPTER_BINDINGS[bindingKey];
  if (!methods) {
    throw new Error(`Unknown MindSpace server adapter binding: ${bindingKey}`);
  }
  for (const method of methods) {
    if (typeof service?.[method] !== 'function') {
      throw new Error(
        `MindSpace server adapter binding "${bindingKey}" is missing method ${bindingKey}.${method}()`,
      );
    }
  }
  return service;
}

export function assertMindSpaceServerAdapterBindings(bindings) {
  for (const bindingKey of MINDSPACE_SERVER_ADAPTER_BINDING_KEYS) {
    assertMindSpaceServerAdapterBindingContract(bindingKey, bindings?.[bindingKey]);
  }
  return bindings;
}