{"version":3,"file":"headContentUtils.cjs","names":[],"sources":["../../src/headContentUtils.tsx"],"sourcesContent":["import * as React from 'react'\nimport { useStore } from '@tanstack/react-store'\nimport {\n  deepEqual,\n  escapeHtml,\n  getAssetCrossOrigin,\n  resolveManifestAssetLink,\n} from '@tanstack/router-core'\nimport { isServer } from '@tanstack/router-core/isServer'\nimport { useRouter } from './useRouter'\nimport type {\n  AssetCrossOriginConfig,\n  RouterManagedTag,\n} from '@tanstack/router-core'\n\nfunction buildTagsFromMatches(\n  router: ReturnType<typeof useRouter>,\n  nonce: string | undefined,\n  matches: Array<any>,\n  assetCrossOrigin?: AssetCrossOriginConfig,\n): Array<RouterManagedTag> {\n  const routeMeta = matches.map((match) => match.meta!).filter(Boolean)\n\n  const resultMeta: Array<RouterManagedTag> = []\n  const metaByAttribute: Record<string, true> = {}\n  let title: RouterManagedTag | undefined\n  for (let i = routeMeta.length - 1; i >= 0; i--) {\n    const metas = routeMeta[i]!\n    for (let j = metas.length - 1; j >= 0; j--) {\n      const m = metas[j]\n      if (!m) continue\n\n      if (m.title) {\n        if (!title) {\n          title = {\n            tag: 'title',\n            children: m.title,\n          }\n        }\n      } else if ('script:ld+json' in m) {\n        try {\n          const json = JSON.stringify(m['script:ld+json'])\n          resultMeta.push({\n            tag: 'script',\n            attrs: {\n              type: 'application/ld+json',\n            },\n            children: escapeHtml(json),\n          })\n        } catch {\n          // Skip invalid JSON-LD objects\n        }\n      } else {\n        const attribute = m.name ?? m.property\n        if (attribute) {\n          if (metaByAttribute[attribute]) {\n            continue\n          } else {\n            metaByAttribute[attribute] = true\n          }\n        }\n\n        resultMeta.push({\n          tag: 'meta',\n          attrs: {\n            ...m,\n            nonce,\n          },\n        })\n      }\n    }\n  }\n\n  if (title) {\n    resultMeta.push(title)\n  }\n\n  if (nonce) {\n    resultMeta.push({\n      tag: 'meta',\n      attrs: {\n        property: 'csp-nonce',\n        content: nonce,\n      },\n    })\n  }\n  resultMeta.reverse()\n\n  const constructedLinks = matches\n    .map((match) => match.links!)\n    .filter(Boolean)\n    .flat(1)\n    .map((link) => ({\n      tag: 'link',\n      attrs: {\n        ...link,\n        nonce,\n      },\n    })) satisfies Array<RouterManagedTag>\n\n  const manifest = router.ssr?.manifest\n  const assetLinks = matches\n    .map((match) => manifest?.routes[match.routeId]?.assets ?? [])\n    .filter(Boolean)\n    .flat(1)\n    .filter((asset) => asset.tag === 'link')\n    .map(\n      (asset) =>\n        ({\n          tag: 'link',\n          attrs: {\n            ...asset.attrs,\n            crossOrigin:\n              getAssetCrossOrigin(assetCrossOrigin, 'stylesheet') ??\n              asset.attrs?.crossOrigin,\n            suppressHydrationWarning: true,\n            nonce,\n          },\n        }) satisfies RouterManagedTag,\n    )\n\n  const preloadLinks: Array<RouterManagedTag> = []\n  matches\n    .map((match) => router.looseRoutesById[match.routeId]!)\n    .forEach((route) =>\n      router.ssr?.manifest?.routes[route.id]?.preloads\n        ?.filter(Boolean)\n        .forEach((preload) => {\n          const preloadLink = resolveManifestAssetLink(preload)\n          preloadLinks.push({\n            tag: 'link',\n            attrs: {\n              rel: 'modulepreload',\n              href: preloadLink.href,\n              crossOrigin:\n                getAssetCrossOrigin(assetCrossOrigin, 'modulepreload') ??\n                preloadLink.crossOrigin,\n              nonce,\n            },\n          })\n        }),\n    )\n\n  const styles = (\n    matches\n      .map((match) => match.styles!)\n      .flat(1)\n      .filter(Boolean) as Array<RouterManagedTag>\n  ).map(({ children, ...attrs }) => ({\n    tag: 'style',\n    attrs: {\n      ...attrs,\n      nonce,\n    },\n    children,\n  }))\n\n  const headScripts = (\n    matches\n      .map((match) => match.headScripts!)\n      .flat(1)\n      .filter(Boolean) as Array<RouterManagedTag>\n  ).map(({ children, ...script }) => ({\n    tag: 'script',\n    attrs: {\n      ...script,\n      nonce,\n    },\n    children,\n  }))\n\n  return uniqBy(\n    [\n      ...resultMeta,\n      ...preloadLinks,\n      ...constructedLinks,\n      ...assetLinks,\n      ...styles,\n      ...headScripts,\n    ] as Array<RouterManagedTag>,\n    (d) => JSON.stringify(d),\n  )\n}\n\n/**\n * Build the list of head/link/meta/script tags to render for active matches.\n * Used internally by `HeadContent`.\n */\nexport const useTags = (assetCrossOrigin?: AssetCrossOriginConfig) => {\n  const router = useRouter()\n  const nonce = router.options.ssr?.nonce\n\n  if (isServer ?? router.isServer) {\n    return buildTagsFromMatches(\n      router,\n      nonce,\n      router.stores.activeMatchesSnapshot.state,\n      assetCrossOrigin,\n    )\n  }\n\n  // eslint-disable-next-line react-hooks/rules-of-hooks -- condition is static\n  const routeMeta = useStore(\n    router.stores.activeMatchesSnapshot,\n    (matches) => {\n      return matches.map((match) => match.meta!).filter(Boolean)\n    },\n    deepEqual,\n  )\n\n  // eslint-disable-next-line react-hooks/rules-of-hooks -- condition is static\n  const meta: Array<RouterManagedTag> = React.useMemo(() => {\n    const resultMeta: Array<RouterManagedTag> = []\n    const metaByAttribute: Record<string, true> = {}\n    let title: RouterManagedTag | undefined\n    for (let i = routeMeta.length - 1; i >= 0; i--) {\n      const metas = routeMeta[i]!\n      for (let j = metas.length - 1; j >= 0; j--) {\n        const m = metas[j]\n        if (!m) continue\n\n        if (m.title) {\n          if (!title) {\n            title = {\n              tag: 'title',\n              children: m.title,\n            }\n          }\n        } else if ('script:ld+json' in m) {\n          // Handle JSON-LD structured data\n          // Content is HTML-escaped to prevent XSS when injected via dangerouslySetInnerHTML\n          try {\n            const json = JSON.stringify(m['script:ld+json'])\n            resultMeta.push({\n              tag: 'script',\n              attrs: {\n                type: 'application/ld+json',\n              },\n              children: escapeHtml(json),\n            })\n          } catch {\n            // Skip invalid JSON-LD objects\n          }\n        } else {\n          const attribute = m.name ?? m.property\n          if (attribute) {\n            if (metaByAttribute[attribute]) {\n              continue\n            } else {\n              metaByAttribute[attribute] = true\n            }\n          }\n\n          resultMeta.push({\n            tag: 'meta',\n            attrs: {\n              ...m,\n              nonce,\n            },\n          })\n        }\n      }\n    }\n\n    if (title) {\n      resultMeta.push(title)\n    }\n\n    if (nonce) {\n      resultMeta.push({\n        tag: 'meta',\n        attrs: {\n          property: 'csp-nonce',\n          content: nonce,\n        },\n      })\n    }\n    resultMeta.reverse()\n\n    return resultMeta\n  }, [routeMeta, nonce])\n\n  // eslint-disable-next-line react-hooks/rules-of-hooks -- condition is static\n  const links = useStore(\n    router.stores.activeMatchesSnapshot,\n    (matches) => {\n      const constructed = matches\n        .map((match) => match.links!)\n        .filter(Boolean)\n        .flat(1)\n        .map((link) => ({\n          tag: 'link',\n          attrs: {\n            ...link,\n            nonce,\n          },\n        })) satisfies Array<RouterManagedTag>\n\n      const manifest = router.ssr?.manifest\n\n      // These are the assets extracted from the ViteManifest\n      // using the `startManifestPlugin`\n      const assets = matches\n        .map((match) => manifest?.routes[match.routeId]?.assets ?? [])\n        .filter(Boolean)\n        .flat(1)\n        .filter((asset) => asset.tag === 'link')\n        .map(\n          (asset) =>\n            ({\n              tag: 'link',\n              attrs: {\n                ...asset.attrs,\n                crossOrigin:\n                  getAssetCrossOrigin(assetCrossOrigin, 'stylesheet') ??\n                  asset.attrs?.crossOrigin,\n                suppressHydrationWarning: true,\n                nonce,\n              },\n            }) satisfies RouterManagedTag,\n        )\n\n      return [...constructed, ...assets]\n    },\n    deepEqual,\n  )\n\n  // eslint-disable-next-line react-hooks/rules-of-hooks -- condition is static\n  const preloadLinks = useStore(\n    router.stores.activeMatchesSnapshot,\n    (matches) => {\n      const preloadLinks: Array<RouterManagedTag> = []\n\n      matches\n        .map((match) => router.looseRoutesById[match.routeId]!)\n        .forEach((route) =>\n          router.ssr?.manifest?.routes[route.id]?.preloads\n            ?.filter(Boolean)\n            .forEach((preload) => {\n              const preloadLink = resolveManifestAssetLink(preload)\n              preloadLinks.push({\n                tag: 'link',\n                attrs: {\n                  rel: 'modulepreload',\n                  href: preloadLink.href,\n                  crossOrigin:\n                    getAssetCrossOrigin(assetCrossOrigin, 'modulepreload') ??\n                    preloadLink.crossOrigin,\n                  nonce,\n                },\n              })\n            }),\n        )\n\n      return preloadLinks\n    },\n    deepEqual,\n  )\n\n  // eslint-disable-next-line react-hooks/rules-of-hooks -- condition is static\n  const styles = useStore(\n    router.stores.activeMatchesSnapshot,\n    (matches) =>\n      (\n        matches\n          .map((match) => match.styles!)\n          .flat(1)\n          .filter(Boolean) as Array<RouterManagedTag>\n      ).map(({ children, ...attrs }) => ({\n        tag: 'style',\n        attrs: {\n          ...attrs,\n          nonce,\n        },\n        children,\n      })),\n    deepEqual,\n  )\n\n  // eslint-disable-next-line react-hooks/rules-of-hooks -- condition is static\n  const headScripts: Array<RouterManagedTag> = useStore(\n    router.stores.activeMatchesSnapshot,\n    (matches) =>\n      (\n        matches\n          .map((match) => match.headScripts!)\n          .flat(1)\n          .filter(Boolean) as Array<RouterManagedTag>\n      ).map(({ children, ...script }) => ({\n        tag: 'script',\n        attrs: {\n          ...script,\n          nonce,\n        },\n        children,\n      })),\n    deepEqual,\n  )\n\n  return uniqBy(\n    [\n      ...meta,\n      ...preloadLinks,\n      ...links,\n      ...styles,\n      ...headScripts,\n    ] as Array<RouterManagedTag>,\n    (d) => {\n      return JSON.stringify(d)\n    },\n  )\n}\n\nexport function uniqBy<T>(arr: Array<T>, fn: (item: T) => string) {\n  const seen = new Set<string>()\n  return arr.filter((item) => {\n    const key = fn(item)\n    if (seen.has(key)) {\n      return false\n    }\n    seen.add(key)\n    return true\n  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