@preprio/prepr-nextjs/dist/server/index.cjs.map

Next.js package for Prepr CMS preview functionality with advanced debugging and visual editing capabilities

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{ headers } from 'next/headers';\nimport {\n  PreprToolbarProps,\n  PreprSegment,\n  PreprHeaderName,\n  PreprErrorCode,\n} from '../types';\nimport pjson from '../../package.json';\nimport createPreprMiddleware from '../middleware';\n\n/**\n * Custom error class for Prepr-related errors\n */\nexport class PreprError extends Error {\n  constructor(\n    message: string,\n    public readonly code: PreprErrorCode,\n    public readonly context?: string,\n    public readonly originalError?: Error\n  ) {\n    super(message);\n    this.name = 'PreprError';\n  }\n}\n\n/**\n * Internal helper to get a specific Prepr header value\n * @param name - The header name to retrieve\n * @returns The header value or null if not found\n */\nasync function getPreprHeader(name: PreprHeaderName): Promise<string | null> {\n  const headersList = await headers();\n  return headersList.get(name);\n}\n\n/**\n * Returns the Prepr Customer ID from the headers\n * @returns Prepr Customer ID\n */\nexport async function getPreprUUID(): Promise<string | null> {\n  return getPreprHeader('prepr-customer-id');\n}\n\n/**\n * Returns the active segment from the headers\n * @returns Active segment\n */\nexport async function getActiveSegment(): Promise<string | null> {\n  return getPreprHeader('Prepr-Segments');\n}\n\n/**\n * Returns the active variant from the headers\n * @returns Active variant\n */\nexport async function getActiveVariant(): Promise<string | null> {\n  return getPreprHeader('Prepr-ABtesting');\n}\n\n/**\n * Helper function to retrieve all Prepr headers\n * @returns Object with Prepr headers\n */\nexport async function getPreprHeaders(): Promise<Record<string, string>> {\n  const preprHeaders: Record<string, string> = {};\n  const headersList = await headers();\n\n  headersList.forEach((value, key) => {\n    if (key.startsWith('prepr') || key.startsWith('Prepr')) {\n      preprHeaders[key] = value;\n    }\n  });\n\n  return preprHeaders;\n}\n\n/**\n * Validates a Prepr GraphQL token\n * @param token - The token to validate\n * @returns Validation result with error details if invalid\n */\nexport function validatePreprToken(token: string): {\n  valid: boolean;\n  error?: string;\n} {\n  if (!token) {\n    return { valid: false, error: 'Token is required' };\n  }\n  if (!token.startsWith('https://')) {\n    return { valid: false, error: 'Token must be a valid HTTPS URL' };\n  }\n  return { valid: true };\n}\n\n/**\n * Checks if the current environment is in preview mode\n * @returns True if in preview mode\n */\nexport function isPreviewMode(): boolean {\n  return process.env.PREPR_ENV === 'preview';\n}\n\n/**\n * Extracts the access token from a Prepr GraphQL URL\n * @param graphqlUrl - The full Prepr GraphQL URL\n * @returns The access token or null if invalid\n * @example\n * ```typescript\n * const token = extractAccessToken('https://graphql.prepr.io/abc123')\n * // Returns: 'abc123'\n * ```\n */\nexport function extractAccessToken(graphqlUrl: string): string | null {\n  if (!graphqlUrl) return null;\n\n  try {\n    const url = new URL(graphqlUrl);\n    if (url.hostname !== 'graphql.prepr.io') return null;\n\n    const pathParts = url.pathname.split('/');\n    const token = pathParts[pathParts.length - 1];\n\n    return token && token.length > 0 ? token : null;\n  } catch {\n    return null;\n  }\n}\n\n/**\n * Fetches the segments from the Prepr API\n * @param token Prepr GraphQL URL with scope 'segments'\n * @returns Array of PreprSegment\n * @throws PreprError if the request fails\n */\nexport async function getPreprEnvironmentSegments(\n  token: string\n): Promise<PreprSegment[]> {\n  const validation = validatePreprToken(token);\n  if (!validation.valid) {\n    throw new PreprError(\n      validation.error!,\n      'INVALID_TOKEN',\n      'getPreprEnvironmentSegments'\n    );\n  }\n\n  try {\n    const response = await fetch(token, {\n      headers: {\n        'User-Agent': `Prepr-Preview-Bar/${getPackageVersion()}`,\n        'Content-Type': 'application/json',\n      },\n      method: 'POST',\n      body: JSON.stringify({\n        query: `{\n                _Segments {\n                    _id\n                    name\n                }\n            }`,\n      }),\n    });\n\n    if (!response.ok) {\n      throw new PreprError(\n        `HTTP ${response.status}: ${response.statusText}`,\n        'HTTP_ERROR',\n        'getPreprEnvironmentSegments'\n      );\n    }\n\n    const json = await response.json();\n\n    if (!json || !json.data || !json.data._Segments) {\n      throw new PreprError(\n        'Invalid response format from Prepr API',\n        'INVALID_RESPONSE',\n        'getPreprEnvironmentSegments'\n      );\n    }\n\n    return json.data._Segments as PreprSegment[];\n  } catch (error) {\n    if (error instanceof PreprError) {\n      throw error;\n    }\n    throw new PreprError(\n      'Failed to fetch segments from Prepr API',\n      'FETCH_ERROR',\n      'getPreprEnvironmentSegments',\n      error instanceof Error ? error : new Error(String(error))\n    );\n  }\n}\n\n/**\n * Fetches all the necessary previewbar props\n * @param token Prepr GraphQL URL with scope 'segments'\n * @returns Object with activeSegment, activeVariant and data\n */\nexport async function getToolbarProps(\n  token: string\n): Promise<PreprToolbarProps> {\n  let data: PreprSegment[] = [];\n  let activeSegment: string | null = null;\n  let activeVariant: string | null = null;\n\n  // Prevent unnecessary function calling in production\n  if (isPreviewMode()) {\n    try {\n      data = await getPreprEnvironmentSegments(token);\n      activeSegment = await getActiveSegment();\n      activeVariant = await getActiveVariant();\n    } catch (error) {\n      // In preview mode, we should still return props even if API fails\n      console.error('Failed to fetch toolbar props:', error);\n      // Return empty data to prevent toolbar from crashing\n      data = [];\n    }\n  }\n\n  return {\n    activeSegment,\n    activeVariant,\n    data,\n  };\n}\n\nfunction getPackageVersion() {\n  return pjson.version;\n}\n\nexport { createPreprMiddleware };\n","{\n  \"name\": \"@preprio/prepr-nextjs\",\n  \"version\": \"2.0.1\",\n  \"description\": \"Next.js package for Prepr CMS preview functionality with advanced debugging and visual editing capabilities\",\n  \"main\": \"dist/react/index.cjs\",\n  \"types\": \"./dist/react/index.d.ts\",\n  \"module\": \"./dist/react/index.js\",\n  \"type\": \"module\",\n  \"scripts\": {\n    \"build\": \"tsup\",\n    \"dev\": \"tsup --watch\",\n    \"clean\": \"rm -rf dist\",\n    \"check\": \"tsc --noEmit && eslint src --ext .ts,.tsx && prettier --check \\\"src/**/*.{ts,tsx,js,jsx,json,md}\\\"\",\n    \"fix\": \"eslint src --ext .ts,.tsx --fix && prettier --write \\\"src/**/*.{ts,tsx,js,jsx,json,md}\\\"\",\n    \"changeset\": \"changeset\",\n    \"version\": \"changeset version\",\n    \"release\": \"pnpm run build && changeset publish\",\n    \"prepublishOnly\": \"pnpm run check && pnpm run build\"\n  },\n  \"exports\": {\n    \"./middleware\": {\n      \"import\": \"./dist/middleware/index.js\",\n      \"types\": \"./dist/middleware/index.d.ts\",\n      \"require\": \"./dist/middleware/index.cjs\"\n    },\n    \"./server\": {\n      \"import\": \"./dist/server/index.js\",\n      \"types\": \"./dist/server/index.d.ts\",\n      \"require\": \"./dist/server/index.cjs\"\n    },\n    \"./react\": {\n      \"import\": \"./dist/react/index.js\",\n      \"types\": \"./dist/react/index.d.ts\",\n      \"require\": \"./dist/react/index.cjs\"\n    },\n    \"./utils\": {\n      \"import\": \"./dist/utils/index.js\",\n      \"types\": \"./dist/utils/index.d.ts\",\n      \"require\": \"./dist/utils/index.cjs\"\n    },\n    \"./types\": {\n      \"import\": \"./dist/types/index.js\",\n      \"types\": \"./dist/types/index.d.ts\",\n      \"require\": \"./dist/types/index.cjs\"\n    },\n    \"./index.css\": {\n      \"import\": \"./dist/index.css\",\n      \"require\": \"./dist/index.css\"\n    }\n  },\n  \"files\": [\n    \"dist\",\n    \"package.json\"\n  ],\n  \"keywords\": [\n    \"prepr\",\n    \"cms\",\n    \"nextjs\",\n    \"preview\",\n    \"visual-editing\",\n    \"headless-cms\",\n    \"react\",\n    \"typescript\",\n    \"debug\",\n    \"stega\"\n  ],\n  \"author\": \"Preprio\",\n  \"license\": \"MIT\",\n  \"packageManager\": \"pnpm@10.5.2\",\n  \"devDependencies\": {\n    \"@changesets/cli\": \"^2.29.5\",\n    \"@eslint/js\": \"^9.25.1\",\n    \"@types/node\": \"^20.11.5\",\n    \"@types/react\": \"19.1.0\",\n    \"@types/react-dom\": \"19.1.2\",\n    \"@typescript-eslint/eslint-plugin\": \"^8.31.1\",\n    \"@typescript-eslint/parser\": \"^8.31.1\",\n    \"autoprefixer\": \"^10.4.21\",\n    \"cssnano\": \"^7.0.7\",\n    \"eslint\": \"^9.25.1\",\n    \"eslint-config-prettier\": \"^10.1.2\",\n    \"eslint-plugin-prettier\": \"^5.2.6\",\n    \"eslint-plugin-react\": \"^7.37.2\",\n    \"eslint-plugin-react-hooks\": \"^5.0.0\",\n    \"next\": \"15.3.1\",\n    \"postcss\": \"^8\",\n    \"prettier\": \"^3.5.3\",\n    \"prettier-plugin-tailwindcss\": \"^0.5.12\",\n    \"react\": \"^19.1.0\",\n    \"react-dom\": \"^19.1.0\",\n    \"tailwindcss\": \"^3.4.17\",\n    \"tsup\": \"^8.5.0\",\n    \"typescript\": \"^5.8.3\"\n  },\n  \"peerDependencies\": {\n    \"next\": \"^15.0.0 || ^14.0.0 || ^13.0.0\",\n    \"react\": \"^19.0.0 || ^18.0.0 || ^17.0.0 \",\n    \"react-dom\": \"^19.0.0 || ^18.0.0 || ^17.0.0\"\n  },\n  \"dependencies\": {\n    \"@headlessui/react\": \"^2.2.0\",\n    \"@vercel/functions\": \"^2.0.0\",\n    \"@vercel/stega\": \"^0.1.2\",\n    \"clsx\": \"^2.1.1\",\n    \"postcss-cli\": \"^11.0.1\",\n    \"tailwind-merge\": \"^3.0.1\"\n  }\n}\n","import { ipAddress } from '@vercel/functions';\nimport { NextRequest, NextResponse } from 'next/server';\nimport { version } from '../../package.json';\n\nexport interface PreprMiddlewareOptions {\n  preview?: boolean;\n}\n\n/**\n * Middleware to set Prepr headers for personalization.\n *\n * @overload\n * @param request - NextRequest object\n * @param options - Options object\n * @returns NextResponse with Prepr headers set\n */\nexport default function createPreprMiddleware(\n  request: NextRequest,\n  options?: PreprMiddlewareOptions\n): NextResponse;\n\n/**\n * Middleware to set Prepr headers for personalization.\n *\n * @overload\n * @param request - NextRequest object\n * @param response - NextResponse object to chain with\n * @param options - Options object\n * @returns NextResponse with Prepr headers set\n */\nexport default function createPreprMiddleware(\n  request: NextRequest,\n  response: NextResponse,\n  options?: PreprMiddlewareOptions\n): NextResponse;\n\n/**\n * Implementation of createPreprMiddleware with function overloads\n */\nexport default function createPreprMiddleware(\n  request: NextRequest,\n  responseOrOptions?: NextResponse | PreprMiddlewareOptions,\n  options?: PreprMiddlewareOptions\n): NextResponse {\n  let response: NextResponse;\n  let finalOptions: PreprMiddlewareOptions | undefined;\n\n  // Handle overloads\n  if (responseOrOptions && 'headers' in responseOrOptions) {\n    // Second parameter is NextResponse\n    response = responseOrOptions;\n    finalOptions = options;\n  } else {\n    // Second parameter is options or undefined\n    response = NextResponse.next();\n    finalOptions = responseOrOptions as PreprMiddlewareOptions | undefined;\n  }\n\n  if (!process.env.PREPR_GRAPHQL_URL) {\n    console.error('PREPR_GRAPHQL_URL is not set');\n  }\n\n  // Map over search params and set headers\n  request.nextUrl.searchParams.forEach((value, key) => {\n    switch (key) {\n      case 'utm_source':\n        response.headers.set('Prepr-Context-utm_source', value);\n        break;\n      case 'utm_medium':\n        response.headers.set('Prepr-Context-utm_medium', value);\n        break;\n      case 'utm_term':\n        response.headers.set('Prepr-Context-utm_term', value);\n        break;\n      case 'utm_content':\n        response.headers.set('Prepr-Context-utm_content', value);\n        break;\n      case 'utm_campaign':\n        response.headers.set('Prepr-Context-utm_campaign', value);\n        break;\n    }\n  });\n\n  // Set initial referral header\n  const referrer = request.headers.get('referer');\n  if (referrer) {\n    response.headers.set('Prepr-Context-initial_referral', referrer);\n  }\n\n  // Set Prepr version header\n  response.headers.set('Prepr-Package', version);\n\n  // Set IP address header\n  const ip = ipAddress(request);\n  if (ip) {\n    response.headers.set('Prepr-Visitor-IP', ip);\n  }\n\n  // Set HubSpot cookie header\n  const hutkCookie = request.cookies.get('hubspotutk')?.value;\n  if (hutkCookie) {\n    response.headers.set('Prepr-Hubspot-Id', hutkCookie);\n  }\n\n  // Check for existing Prepr UID cookie or create a new one\n  let cookie = request.cookies.get('__prepr_uid')?.value;\n  if (!cookie) {\n    cookie = crypto.randomUUID();\n    response.cookies.set('__prepr_uid', cookie, {\n      maxAge: 1 * 365 * 24 * 60, // Set for one year\n    });\n    response.headers.set('Prepr-Customer-Id-Created', 'true');\n  }\n\n  // Set the Prepr Customer ID header\n  response.headers.set('Prepr-Customer-Id', cookie);\n\n  // If preview mode is not enabled, return the response\n  if (!finalOptions?.preview || process.env.PREPR_ENV !== 'preview') {\n    return response;\n  }\n\n  // If preview mode is enabled, set additional headers\n  response.headers.set('Prepr-Preview-Bar', 'true');\n\n  // Set Prepr Preview Segment and AB test cookies\n  const segmentCookie = request.cookies.get('Prepr-Segments')?.value;\n  if (segmentCookie) {\n    response.headers.set('Prepr-Segments', segmentCookie);\n  }\n\n  const abCookie = request.cookies.get('Prepr-ABtesting')?.value;\n  if (abCookie) {\n    response.headers.set('Prepr-ABtesting', abCookie);\n  }\n\n  // Set Prepr Preview Segment and AB test headers from query params\n  request.nextUrl.searchParams.forEach((value, key) => {\n    if (key === 'prepr_preview_ab') {\n      response.headers.set('Prepr-ABtesting', value);\n      response.cookies.set('Prepr-ABtesting', value);\n    }\n\n    if (key === 'prepr_preview_segment') {\n      response.headers.set('Prepr-Segments', value);\n      response.cookies.set('Prepr-Segments', value);\n    }\n  });\n\n  return response;\n}\n"]}