{"record":{"id":"9e28e1f0a98aee9e","repo":"moeru-ai/airi","slug":"not-implemented","errorCode":null,"errorMessage":"Not implemented","messagePattern":"Not implemented","errorType":"exception","errorClass":null,"httpStatus":null,"severity":"error","filePath":"integrations/twitter-services/src/core/services/user.ts","lineNumber":43,"sourceCode":" */\nexport interface UserStats {\n  tweets: number\n  following: number\n  followers: number\n}\n\n/**\n * User Link\n */\nexport interface UserLink {\n  type: string\n  url: string\n  title: string\n}\n\nexport function useTwitterUserServices(ctx: Context): TwitterService {\n  async function followUser(_username: string): Promise<boolean> {\n    throw new Error('Not implemented')\n  }\n\n  async function getUserProfile(username: string): Promise<UserProfile> {\n    try {\n    // Navigate to user profile page\n      await ctx.page.goto(`${TWITTER_BASE_URL}/${username}`)\n\n      // Wait for profile elements to load\n      await ctx.page.waitForSelector('[data-testid=\"UserName\"]')\n\n      // Get display name\n      const displayNameElement = await ctx.page.$('[data-testid=\"UserName\"] div span')\n      const displayName = displayNameElement ? await displayNameElement.textContent() || username : username\n\n      // Get bio\n      const bioElement = await ctx.page.$('[data-testid=\"UserDescription\"]')\n      const bio = bioElement ? await bioElement.textContent() : undefined\n","sourceCodeStart":25,"sourceCodeEnd":61,"githubUrl":"https://github.com/moeru-ai/airi/blob/27111382b4a79a7e983289d6e983a06af185ed0f/integrations/twitter-services/src/core/services/user.ts#L25-L61","documentation":"followUser is an intentional stub: the Twitter user service exposes the function in its interface but has not implemented it, so every call throws 'Not implemented' unconditionally. This is a contract gap rather than a runtime failure.","triggerScenarios":"Any caller that invokes followUser(username), regardless of input, hits this throw immediately because the body is `throw new Error('Not implemented')`.","commonSituations":"A consumer of useTwitterUserServices assumes the full interface is implemented and calls followUser; UI surfaces a Follow button wired to this function; documentation lists follow support that the code does not yet provide.","solutions":["Do not call followUser until it is implemented; gate the UI/caller on a capability flag.","Implement followUser by navigating to the profile, clicking [data-testid*='follow'], and confirming the button label flips to Following.","If shipping the interface, expose an `isFollowSupported` capability flag so callers can detect the stub."],"exampleFix":"// before\nasync function followUser(_username: string): Promise<boolean> {\n  throw new Error('Not implemented')\n}\n\n// after\nasync function followUser(username: string): Promise<boolean> {\n  await ctx.page.goto(`${TWITTER_BASE_URL}/${username}`)\n  await ctx.page.waitForSelector('[data-testid=\"placementTracking\"]')\n  const followBtn = await ctx.page.$('[data-testid*=\"follow\"]')\n  if (!followBtn) return false\n  await followBtn.click()\n  await ctx.page.waitForFunction(\n    `document.querySelector('[data-testid*=\"follow\"]') === null`,\n    { timeout: 5000 },\n  )\n  return true\n}","handlingStrategy":"validation","validationCode":"const capabilities = { followSupported: false }\nif (!capabilities.followSupported) {\n  // do not call followUser; surface 'unsupported' to the UI\n  throw new Error('followUser is not supported in this build')\n}","typeGuard":"function isFollowImplemented(fn: (...args: any[]) => Promise<unknown>): boolean {\n  // inspect the function source: stubs throw immediately without touching ctx\n  return !/Not implemented/.test(fn.toString())\n}","tryCatchPattern":"try {\n  await followUser(username)\n}\ncatch (err) {\n  if ((err as Error).message === 'Not implemented') {\n    // degrade: inform the user follow is unsupported\n    return false\n  }\n  throw err\n}","preventionTips":["Expose a capability flag (e.g. isFollowSupported) on the service so callers can detect stubs.","Do not wire UI buttons to unimplemented service methods.","Track unimplemented interface methods in a known-gaps list."],"tags":["stub","not-implemented","twitter","contract-gap"],"backgroundTag":null,"analyzedSha":"27111382b4a79a7e983289d6e983a06af185ed0f","analyzedAt":"2026-08-12T18:33:34.132Z","schemaVersion":2},"datasetVersion":"2026-08-12T23:17:12.415Z"}