`, stylesheets, and headLinks for SPA navigation.\n */\nasync function fetchFromHtml(pathname: string, search: string, signal?: AbortSignal): Promise<RenderPayload | undefined> {\n const fullUrl = pathname + (search || \"\");\n let response: Response;\n try {\n response = await fetch(fullUrl, { headers: { Accept: \"text/html\" }, signal });\n } catch (err) {\n if (err instanceof DOMException && err.name === \"AbortError\") return undefined;\n return undefined;\n }\n if (!response.ok) return undefined;\n\n let html: string;\n try {\n html = await response.text();\n } catch {\n return undefined;\n }\n\n // Parse the full HTML document.\n const parser = new DOMParser();\n const doc = parser.parseFromString(html, \"text/html\");\n\n // Extract #app innerHTML — this is the page body.\n const appEl = doc.getElementById(\"app\");\n if (!appEl) return undefined;\n const body = appEl.innerHTML;\n\n // Extract managed head tags (data-nix-js-head) for mergeHead.\n const headTags = doc.querySelectorAll(\"[data-nix-js-head]\");\n let head = \"\";\n for (const tag of headTags) {\n head += tag.outerHTML;\n }\n\n // Also extract headLinks (favicons, manifest, theme-color) so they persist.\n // These don't have data-nix-js-head, so we grab them separately.\n const linkTags = doc.head.querySelectorAll(\"link[rel='icon'], link[rel='apple-touch-icon'], link[rel='manifest'], meta[name='theme-color']\");\n for (const tag of linkTags) {\n // Skip if already in the current document head\n const href = tag.getAttribute(\"href\");\n if (href && document.head.querySelector(`link[href=\"${href}\"]`)) continue;\n head += tag.outerHTML;\n }\n\n const title = doc.querySelector(\"title\")?.textContent ?? undefined;\n\n return { body, head, title };\n}\n\n/**\n * Prefetches a path without navigating. Called by the IntersectionObserver\n * when a link enters the viewport, and on hover/focus.\n */\nexport async function prefetch(pathname: string, search = \"\"): Promise<void> {\n const key = cacheKey(pathname, search);\n if (prefetchCache.has(key)) {\n // Already cached or in-flight — skip.\n const entry = prefetchCache.get(key)!;\n if (Date.now() - entry.ts <= PREFETCH_TTL_MS) return;\n }\n await fetchPayload(pathname, search);\n}\n\n// --- View Transitions ---\n\n/** Returns true if the user prefers reduced motion. */\nfunction prefersReducedMotion(): boolean {\n return window.matchMedia?.(\"(prefers-reduced-motion: reduce)\").matches ?? false;\n}\n\n/** Returns true if the View Transitions API is available. */\nfunction supportsViewTransitions(): boolean {\n return typeof (document as any).startViewTransition === \"function\";\n}\n\n// --- Navigation ---\n\n/**\n * Guard against concurrent navigations. When a navigation is in-flight, a new\n * request cancels the previous one (abort + ignore its result). This prevents\n * race conditions where two rapid clicks could swap content out of order.\n */\nlet inFlightNavigation: {\n controller: AbortController;\n pathname: string;\n} | null = null;\n\n/**\n * Cancels any in-flight navigation so a new one can proceed cleanly.\n */\nfunction cancelInFlightNavigation(): void {\n if (inFlightNavigation) {\n inFlightNavigation.controller.abort();\n inFlightNavigation = null;\n }\n}\n\n/**\n * Hoists `<link rel=\"stylesheet\">` and `<style>` tags from inside `#app` into\n * `<head>` so they persist across SPA navigations (prevents FOUC/flashing).\n * Deduplicates by `href` for links and by text content for styles.\n */\nexport function hoistStyles(container: ParentNode): void {\n const links = container.querySelectorAll<HTMLLinkElement>('link[rel=\"stylesheet\"]');\n for (const link of links) {\n const href = link.getAttribute(\"href\");\n if (!href) continue;\n // Already in <head>?\n const existing = document.head.querySelector(`link[rel=\"stylesheet\"][href=\"${href}\"]`);\n if (existing) {\n link.remove();\n continue;\n }\n // Mark as hoisted so we can clean up later if needed\n link.setAttribute(\"data-nix-js-hoisted\", \"\");\n document.head.appendChild(link);\n }\n\n const styles = container.querySelectorAll<HTMLStyleElement>(\"style\");\n for (const style of styles) {\n const text = style.textContent?.trim();\n if (!text) continue;\n // Check if an identical style already exists in <head>\n const existing = Array.from(document.head.querySelectorAll(\"style\")).find(\n (s) => s.textContent?.trim() === text,\n );\n if (existing) {\n style.remove();\n continue;\n }\n style.setAttribute(\"data-nix-js-hoisted\", \"\");\n document.head.appendChild(style);\n }\n}\n\n/**\n * Announces a route change to assistive technology via an aria-live region.\n * This is critical for screen reader users who need to know the page content\n * has changed after a SPA navigation.\n */\nfunction announceNavigation(pathname: string): void {\n let liveRegion = document.getElementById(\"nix-js-route-announcer\");\n if (!liveRegion) {\n liveRegion = document.createElement(\"div\");\n liveRegion.id = \"nix-js-route-announcer\";\n liveRegion.setAttribute(\"aria-live\", \"assertive\");\n liveRegion.setAttribute(\"aria-atomic\", \"true\");\n liveRegion.setAttribute(\"role\", \"status\");\n // Visually hidden but available to screen readers.\n liveRegion.setAttribute(\"style\", \"position:absolute;left:-9999px;width:1px;height:1px;overflow:hidden;\");\n document.body.appendChild(liveRegion);\n }\n // Clear and re-set so screen readers announce the change.\n liveRegion.textContent = \"\";\n // Use a microtask delay so the DOM update is picked up by AT.\n // Guard against the document being torn down (e.g. in tests).\n const region = liveRegion;\n const timer = setTimeout(() => {\n if (typeof document !== \"undefined\" && region) {\n const title = document.title || pathname;\n region.textContent = title;\n }\n }, 50);\n // Don't keep the process alive just for the announcer.\n if (typeof timer === \"object\" && timer && \"unref\" in timer) {\n (timer as { unref: () => void }).unref();\n }\n}\n\n/**\n * Moves focus to the main content area after a SPA navigation. This follows\n * the WAI-ARIA pattern for route changes: if the #app has a tabindex=-1, focus\n * it; otherwise create a temporary focus target.\n */\nfunction moveFocusToContent(): void {\n const app = document.getElementById(\"app\");\n if (!app) return;\n // Ensure the container is focusable.\n if (!app.hasAttribute(\"tabindex\")) {\n app.setAttribute(\"tabindex\", \"-1\");\n }\n // Remove outline only for mouse users; keyboard users keep it.\n app.focus({ preventScroll: false });\n}\n\n/**\n * Updates the canonical URL and og:url meta tags after navigation.\n */\nfunction updateCanonicalUrl(pathname: string, search: string): void {\n const fullUrl = location.origin + pathname + (search || \"\");\n // Update or create canonical link.\n let canonical = document.querySelector<HTMLLinkElement>('link[rel=\"canonical\"]');\n if (!canonical) {\n canonical = document.createElement(\"link\");\n canonical.rel = \"canonical\";\n document.head.appendChild(canonical);\n }\n canonical.href = fullUrl;\n // Update og:url meta.\n let ogUrl = document.querySelector<HTMLMetaElement>('meta[property=\"og:url\"]');\n if (!ogUrl) {\n ogUrl = document.createElement(\"meta\");\n ogUrl.setAttribute(\"property\", \"og:url\");\n document.head.appendChild(ogUrl);\n }\n ogUrl.content = fullUrl;\n}\n\n/**\n * Navigates to a page without a full reload: fetches the fresh body from the\n * `/__nix-js/render` endpoint, swaps `#app`, updates the document title and\n * dispatches `nix-js:rendered` so islands re-hydrate. Used by the router on\n * clicks and available for programmatic navigation (e.g. after a server\n * action returns a redirect, so the target page shows fresh server data).\n *\n * Concurrent navigations are handled: a new navigateTo() cancels any\n * in-flight navigation to prevent out-of-order content swaps.\n *\n * @param pathname Path without query, e.g. \"/movies/inception\".\n * @param search Query string, e.g. \"?reviewed=1\" (optional).\n * @param push Whether to push a history entry (default true).\n * @returns true on success, false if the render failed.\n */\nexport async function navigateTo(pathname: string, search = \"\", push = true): Promise<boolean> {\n // Cancel any previous in-flight navigation to prevent race conditions.\n cancelInFlightNavigation();\n\n const controller = new AbortController();\n inFlightNavigation = { controller, pathname };\n\n let payload: RenderPayload | undefined;\n try {\n payload = await fetchPayload(pathname, search, controller.signal);\n } catch (err) {\n if (controller.signal.aborted) return false; // superseded by a newer nav\n throw err;\n }\n\n // If a newer navigation started while we were fetching, bail out.\n if (inFlightNavigation && inFlightNavigation.controller !== controller) {\n if (controller.signal.aborted) return false;\n }\n inFlightNavigation = null;\n\n if (!payload) return false;\n\n const app = document.getElementById(\"app\");\n if (!app) return false;\n\n // Save scroll position in the current history entry before navigating.\n if (push) {\n history.replaceState(\n { n: location.pathname, scroll: window.scrollY },\n \"\",\n location.href,\n );\n }\n\n const current = new URL(location.href);\n const doSwap = () => {\n // Save scroll positions of scrollable elements (e.g. sidebar) before swap\n const scrollables: { el: Element; top: number }[] = [];\n app.querySelectorAll(\"[data-scroll-preserve]\").forEach((el) => {\n scrollables.push({ el, top: el.scrollTop });\n });\n\n // Hoist any stylesheets from the current #app content to <head> before\n // the swap, so they persist and don't cause a flash.\n hoistStyles(app);\n\n // Parse the new body and hoist its styles before injecting, so the\n // browser never sees a frame without styles.\n const temp = document.createElement(\"template\");\n temp.innerHTML = payload.body;\n hoistStyles(temp.content as unknown as HTMLElement);\n\n // Inject the remaining body (styles already moved to <head>)\n app.innerHTML = temp.innerHTML;\n mergeHead(payload.head, payload.title);\n if (payload.clearActionErrorCookie) {\n document.cookie = payload.clearActionErrorCookie;\n }\n if (push) {\n history.pushState({ n: pathname, scroll: 0 }, \"\", pathname + (search || current.search));\n }\n const savedScroll = push ? 0 : (history.state?.scroll ?? 0);\n window.scrollTo(0, savedScroll);\n\n // Restore scroll positions of preserved elements\n for (const s of scrollables) {\n const newEl = app.querySelector(`[data-scroll-preserve=\"${s.el.getAttribute(\"data-scroll-preserve\")}\"]`);\n if (newEl) newEl.scrollTop = s.top;\n }\n\n // Update canonical URL and OG tags for the new route.\n updateCanonicalUrl(pathname, search);\n\n // Announce the navigation to screen readers.\n announceNavigation(pathname);\n\n // Move focus to the main content for keyboard/screen reader users.\n // Only on push (forward navigation), not on back/forward (popstate).\n if (push) moveFocusToContent();\n\n document.dispatchEvent(new CustomEvent(\"nix-js:rendered\"));\n };\n\n // Use View Transitions when available and the user hasn't opted out.\n const useTransition = supportsViewTransitions() && !prefersReducedMotion();\n if (useTransition) {\n (document as any).startViewTransition(() => doSwap());\n } else {\n doSwap();\n }\n\n return true;\n}\n\n/**\n * Replaces all `<head>` tags marked with `data-nix-js-head` with the new ones\n * from the server payload. Also updates `document.title` when a title tag is\n * present in the new head.\n */\nfunction mergeHead(head: string | undefined, fallbackTitle: string | undefined): void {\n // Remove existing managed tags.\n const existing = document.querySelectorAll(\"[data-nix-js-head]\");\n existing.forEach((el) => el.remove());\n\n if (head && head.trim().length > 0) {\n // Parse the head tags from the server and insert them into <head>.\n const parser = document.createElement(\"template\");\n parser.innerHTML = head;\n const fragment = parser.content;\n // Extract the <title> if present and set document.title directly.\n const titleEl = fragment.querySelector(\"title\");\n if (titleEl) {\n document.title = titleEl.textContent ?? \"\";\n titleEl.remove();\n }\n document.head.appendChild(fragment);\n } else if (fallbackTitle) {\n document.title = fallbackTitle;\n }\n}\n\n// --- Link prefetch observers ---\n\n/** Set of links currently being observed for prefetch. */\nconst observedLinks = new WeakSet<HTMLAnchorElement>();\n\n/**\n * Sets up prefetch on internal links. Default is interaction-only (hover or\n * focus) — the same behavior as Astro — so a page load never fires a burst of\n * fetches for every link in the viewport. Links can opt into viewport\n * prefetching with `data-prefetch=\"viewport\"`.\n */\nfunction setupLinkPrefetch(): void {\n const linkInfo = (link: HTMLAnchorElement) => {\n const href = link.getAttribute(\"href\");\n if (!href || href.startsWith(\"#\") || href.startsWith(\"mailto:\") || href.startsWith(\"javascript:\")) {\n return null;\n }\n const qIndex = href.indexOf(\"?\");\n return {\n path: qIndex === -1 ? href : href.slice(0, qIndex),\n search: qIndex === -1 ? \"\" : href.slice(qIndex),\n };\n };\n\n const observeLink = (link: HTMLAnchorElement) => {\n if (observedLinks.has(link)) return;\n if (!isInternalLink(link) || link.hasAttribute(\"data-no-prefetch\")) return;\n observedLinks.add(link);\n\n // Interaction prefetch (default): hover or focus.\n const onInteract = () => {\n const info = linkInfo(link);\n if (info) void prefetch(info.path, info.search);\n };\n link.addEventListener(\"pointerenter\", onInteract, { once: true });\n link.addEventListener(\"focus\", onInteract, { once: true });\n\n // Opt-in viewport prefetch via data-prefetch=\"viewport\".\n if (link.dataset.prefetch === \"viewport\" && \"IntersectionObserver\" in window) {\n const observer = new IntersectionObserver(\n (entries) => {\n for (const entry of entries) {\n if (!entry.isIntersecting) continue;\n const info = linkInfo(entry.target as HTMLAnchorElement);\n if (info) void prefetch(info.path, info.search);\n observer.disconnect();\n }\n },\n { rootMargin: \"200px\", threshold: 0 },\n );\n observer.observe(link);\n }\n };\n\n const observeLinks = () => {\n const links = document.querySelectorAll<HTMLAnchorElement>(\"a[href]\");\n for (const link of links) observeLink(link);\n };\n\n observeLinks();\n\n // Re-scan when the DOM changes (e.g. after SPA navigation).\n const mutationObserver = new MutationObserver(() => observeLinks());\n mutationObserver.observe(document.body, { childList: true, subtree: true });\n\n // Re-scan after each SPA navigation.\n document.addEventListener(\"nix-js:rendered\", observeLinks);\n}\n\n// --- Router bootstrap ---\n\nexport function startClientRouter(): void {\n // Static builds emit this marker, so the client never probes the render\n // endpoint (zero 404s on fully static deployments). The meta lives in the\n // initial HTML head and persists across SPA navigations.\n const endpointMeta = document.querySelector<HTMLMetaElement>(\n 'meta[name=\"nix-js:render-endpoint\"]',\n );\n if (endpointMeta?.getAttribute(\"content\") === \"off\") {\n renderEndpointAvailable = false;\n }\n\n // Hoist styles from #app to <head> immediately on page load.\n // This prevents FOUC on the first SPA navigation.\n const app = document.getElementById(\"app\");\n if (app) hoistStyles(app);\n\n document.addEventListener(\"click\", async (event) => {\n if (!(event instanceof MouseEvent) || hasModifier(event)) return;\n if (event.defaultPrevented) return;\n const link = (event.target as HTMLElement).closest(\"a\");\n if (!link || !isInternalLink(link as HTMLAnchorElement)) return;\n\n const href = link.getAttribute(\"href\");\n if (!href || href.startsWith(\"mailto:\") || href.startsWith(\"javascript:\")) return;\n\n // Handle hash links: scroll to the element if it exists on the page\n if (href.startsWith(\"#\")) {\n if (href.length > 1) {\n const target = document.getElementById(href.slice(1));\n if (target) {\n event.preventDefault();\n target.scrollIntoView({ behavior: \"smooth\", block: \"start\" });\n history.replaceState(null, \"\", href);\n }\n }\n return;\n }\n\n event.preventDefault();\n const qIndex = href.indexOf(\"?\");\n const path = qIndex === -1 ? href : href.slice(0, qIndex);\n const search = qIndex === -1 ? \"\" : href.slice(qIndex);\n if (!(await navigateTo(path, search))) {\n location.assign(href);\n }\n });\n\n window.addEventListener(\"popstate\", (event) => {\n const state = event.state as { n?: string; scroll?: number } | null;\n const target = state?.n ?? location.pathname;\n void navigateTo(target, location.search, false);\n });\n\n setupLinkPrefetch();\n}\n\n// --- Test helpers (not part of the public API) ---\n\n/**\n * Resets all internal router state. Intended for test isolation only.\n * @internal\n */\nexport function __resetRouterState(): void {\n prefetchCache.clear();\n inFlightNavigation = null;\n renderEndpointAvailable = true;\n endpointProbe = null;\n}\n\n"],"mappings":"mEA8BA,IAAI,EAA0B,GAG1B,EAAyC,KAG7C,SAAS,GAAgD,CAkBvD,OAjBK,GACL,AACE,KAAiB,SAAY,CAC3B,IAAM,EAAM,IAAI,IAAI,mBAAoB,SAAS,MAAM,EACvD,EAAI,aAAa,IAAI,OAAQ,GAAG,EAChC,GAAI,CACF,IAAM,EAAW,MAAM,MAAM,EAAI,SAAS,EAAG,CAC3C,QAAS,CAAE,OAAQ,mBAAoB,cAAe,GAAI,CAC5D,CAAC,EAED,MADA,GAA0B,EAAS,GAC5B,EAAS,EAClB,MAAQ,CAEN,MADA,GAA0B,GACnB,EACT,CACF,EAAA,CAAG,EAEE,GAjB8B,QAAQ,QAAQ,EAAK,CAkB5D,CAEA,SAAS,EAAe,EAAkC,CACxD,OACE,EAAK,UAAY,KACjB,EAAK,WAAa,SAAS,UAC3B,EAAK,SAAW,IAChB,CAAC,EAAK,aAAa,UAAU,GAC7B,CAAC,EAAK,aAAa,gBAAgB,CAEvC,CAEA,SAAS,EAAY,EAA4B,CAC/C,OAAO,EAAM,SAAW,EAAM,SAAW,EAAM,UAAY,EAAM,MACnE,CAIA,IAAM,EAAkB,IAOlB,EAAgB,IAAI,IAG1B,SAAS,EAAS,EAAkB,EAAwB,CAC1D,OAAO,EAAW,CACpB,CAGA,SAAS,EAAU,EAAwC,CACzD,IAAM,EAAQ,EAAc,IAAI,CAAG,EAC9B,KACL,IAAI,KAAK,IAAI,EAAI,EAAM,GAAK,EAAiB,CAC3C,EAAc,OAAO,CAAG,EACxB,MACF,CACA,OAAO,EAAM,OADb,CAEF,CAGA,SAAS,EAAU,EAAa,EAA8B,CAC5D,EAAc,IAAI,EAAK,CAAE,UAAS,GAAI,KAAK,IAAI,CAAE,CAAC,CACpD,CASA,eAAe,EAAa,EAAkB,EAAgB,EAA0D,CACtH,IAAM,EAAM,EAAS,EAAU,CAAM,EAC/B,EAAS,EAAU,CAAG,EAC5B,GAAI,EAAQ,OAAO,EAInB,GAAI,GACE,MAAM,EAA4B,EAAG,CACvC,IAAM,EAAU,MAAM,EAAwB,EAAU,EAAQ,CAAM,EACtE,GAAI,EAEF,OADA,EAAU,EAAK,CAAO,EACf,CAIX,CAIF,IAAM,EAAU,MAAM,EAAc,EAAU,EAAQ,CAAM,EAI5D,OAHI,GACF,EAAU,EAAK,CAAO,EAEjB,CACT,CAGA,eAAe,EAAwB,EAAkB,EAAgB,EAA0D,CACjI,IAAM,EAAM,IAAI,IAAI,mBAAoB,SAAS,MAAM,EACvD,EAAI,aAAa,IAAI,OAAQ,CAAQ,EACrC,IAAM,EAAU,IAAI,IAAI,SAAS,IAAI,EACrC,EAAI,aAAa,IAAI,SAAU,GAAU,EAAQ,MAAM,EAEvD,IAAI,EACJ,GAAI,CACF,EAAW,MAAM,MAAM,EAAI,SAAS,EAAG,CAAE,QAAS,CAAE,OAAQ,kBAAmB,EAAG,QAAO,CAAC,CAC5F,OAAS,EAAK,CACR,aAAe,cAAgB,EAAI,KACvC,MACF,CACA,GAAI,CAAC,EAAS,GAAI,OAElB,IAAI,EACJ,GAAI,CACF,EAAU,MAAM,EAAS,KAAK,CAChC,MAAQ,CACN,MACF,CACA,OAAO,CACT,CAOA,eAAe,EAAc,EAAkB,EAAgB,EAA0D,CACvH,IAAM,EAAU,GAAY,GAAU,IAClC,EACJ,GAAI,CACF,EAAW,MAAM,MAAM,EAAS,CAAE,QAAS,CAAE,OAAQ,WAAY,EAAG,QAAO,CAAC,CAC9E,OAAS,EAAK,CACR,aAAe,cAAgB,EAAI,KACvC,MACF,CACA,GAAI,CAAC,EAAS,GAAI,OAElB,IAAI,EACJ,GAAI,CACF,EAAO,MAAM,EAAS,KAAK,CAC7B,MAAQ,CACN,MACF,CAIA,IAAM,EAAM,IADO,UACP,CAAA,CAAO,gBAAgB,EAAM,WAAW,EAG9C,EAAQ,EAAI,eAAe,KAAK,EACtC,GAAI,CAAC,EAAO,OACZ,IAAM,EAAO,EAAM,UAGb,EAAW,EAAI,iBAAiB,oBAAoB,EACtD,EAAO,GACX,IAAK,IAAM,KAAO,EAChB,GAAQ,EAAI,UAKd,IAAM,EAAW,EAAI,KAAK,iBAAiB,gGAAgG,EAC3I,IAAK,IAAM,KAAO,EAAU,CAE1B,IAAM,EAAO,EAAI,aAAa,MAAM,EAChC,GAAQ,SAAS,KAAK,cAAc,cAAc,EAAK,GAAG,IAC9D,GAAQ,EAAI,UACd,CAEA,IAAM,EAAQ,EAAI,cAAc,OAAO,CAAC,EAAE,aAAe,IAAA,GAEzD,MAAO,CAAE,OAAM,OAAM,OAAM,CAC7B,CAMA,eAAsB,EAAS,EAAkB,EAAS,GAAmB,CAC3E,IAAM,EAAM,EAAS,EAAU,CAAM,EACrC,GAAI,EAAc,IAAI,CAAG,EAAG,CAE1B,IAAM,EAAQ,EAAc,IAAI,CAAG,EACnC,GAAI,KAAK,IAAI,EAAI,EAAM,IAAM,EAAiB,MAChD,CACA,MAAM,EAAa,EAAU,CAAM,CACrC,CAKA,SAAS,GAAgC,CACvC,OAAO,OAAO,aAAa,kCAAkC,CAAC,CAAC,SAAW,EAC5E,CAGA,SAAS,GAAmC,CAC1C,OAAO,OAAQ,SAAiB,qBAAwB,UAC1D,CASA,IAAI,EAGO,KAKX,SAAS,GAAiC,CACxC,AAEE,KADA,EAAmB,WAAW,MAAM,EACf,KAEzB,CAOA,SAAgB,EAAY,EAA6B,CACvD,IAAM,EAAQ,EAAU,iBAAkC,wBAAwB,EAClF,IAAK,IAAM,KAAQ,EAAO,CACxB,IAAM,EAAO,EAAK,aAAa,MAAM,EAChC,KAGL,IADiB,SAAS,KAAK,cAAc,gCAAgC,EAAK,GAC9E,EAAU,CACZ,EAAK,OAAO,EACZ,QACF,CAEA,EAAK,aAAa,sBAAuB,EAAE,EAC3C,SAAS,KAAK,YAAY,CAAI,CAH9B,CAIF,CAEA,IAAM,EAAS,EAAU,iBAAmC,OAAO,EACnE,IAAK,IAAM,KAAS,EAAQ,CAC1B,IAAM,EAAO,EAAM,aAAa,KAAK,EAChC,KAKL,IAHiB,MAAM,KAAK,SAAS,KAAK,iBAAiB,OAAO,CAAC,CAAC,CAAC,KAClE,GAAM,EAAE,aAAa,KAAK,IAAM,CAE/B,EAAU,CACZ,EAAM,OAAO,EACb,QACF,CACA,EAAM,aAAa,sBAAuB,EAAE,EAC5C,SAAS,KAAK,YAAY,CAAK,CAF/B,CAGF,CACF,CAOA,SAAS,EAAmB,EAAwB,CAClD,IAAI,EAAa,SAAS,eAAe,wBAAwB,EAC5D,IACH,EAAa,SAAS,cAAc,KAAK,EACzC,EAAW,GAAK,yBAChB,EAAW,aAAa,YAAa,WAAW,EAChD,EAAW,aAAa,cAAe,MAAM,EAC7C,EAAW,aAAa,OAAQ,QAAQ,EAExC,EAAW,aAAa,QAAS,sEAAsE,EACvG,SAAS,KAAK,YAAY,CAAU,GAGtC,EAAW,YAAc,GAGzB,IAAM,EAAS,EACT,EAAQ,eAAiB,CAC7B,GAAI,OAAO,SAAa,KAAe,EAAQ,CAC7C,IAAM,EAAQ,SAAS,OAAS,EAChC,EAAO,YAAc,CACvB,CACF,EAAG,EAAE,EAED,OAAO,GAAU,UAAY,GAAS,UAAW,GACnD,EAAiC,MAAM,CAE3C,CAOA,SAAS,GAA2B,CAClC,IAAM,EAAM,SAAS,eAAe,KAAK,EACpC,IAEA,EAAI,aAAa,UAAU,GAC9B,EAAI,aAAa,WAAY,IAAI,EAGnC,EAAI,MAAM,CAAE,cAAe,EAAM,CAAC,EACpC,CAKA,SAAS,EAAmB,EAAkB,EAAsB,CAClE,IAAM,EAAU,SAAS,OAAS,GAAY,GAAU,IAEpD,EAAY,SAAS,cAA+B,uBAAuB,EAC1E,IACH,EAAY,SAAS,cAAc,MAAM,EACzC,EAAU,IAAM,YAChB,SAAS,KAAK,YAAY,CAAS,GAErC,EAAU,KAAO,EAEjB,IAAI,EAAQ,SAAS,cAA+B,yBAAyB,EACxE,IACH,EAAQ,SAAS,cAAc,MAAM,EACrC,EAAM,aAAa,WAAY,QAAQ,EACvC,SAAS,KAAK,YAAY,CAAK,GAEjC,EAAM,QAAU,CAClB,CAiBA,eAAsB,EAAW,EAAkB,EAAS,GAAI,EAAO,GAAwB,CAE7F,EAAyB,EAEzB,IAAM,EAAa,IAAI,gBACvB,EAAqB,CAAE,aAAY,UAAS,EAE5C,IAAI,EACJ,GAAI,CACF,EAAU,MAAM,EAAa,EAAU,EAAQ,EAAW,MAAM,CAClE,OAAS,EAAK,CACZ,GAAI,EAAW,OAAO,QAAS,MAAO,GACtC,MAAM,CACR,CAQA,GALI,GAAsB,EAAmB,aAAe,GACtD,EAAW,OAAO,UAExB,EAAqB,KAEjB,CAAC,GAAS,MAAO,GAErB,IAAM,EAAM,SAAS,eAAe,KAAK,EACzC,GAAI,CAAC,EAAK,MAAO,GAGb,GACF,QAAQ,aACN,CAAE,EAAG,SAAS,SAAU,OAAQ,OAAO,OAAQ,EAC/C,GACA,SAAS,IACX,EAGF,IAAM,EAAU,IAAI,IAAI,SAAS,IAAI,EAC/B,MAAe,CAEnB,IAAM,EAA8C,CAAC,EACrD,EAAI,iBAAiB,wBAAwB,CAAC,CAAC,QAAS,GAAO,CAC7D,EAAY,KAAK,CAAE,KAAI,IAAK,EAAG,SAAU,CAAC,CAC5C,CAAC,EAID,EAAY,CAAG,EAIf,IAAM,EAAO,SAAS,cAAc,UAAU,EAC9C,EAAK,UAAY,EAAQ,KACzB,EAAY,EAAK,OAAiC,EAGlD,EAAI,UAAY,EAAK,UACrB,EAAU,EAAQ,KAAM,EAAQ,KAAK,EACjC,EAAQ,yBACV,SAAS,OAAS,EAAQ,wBAExB,GACF,QAAQ,UAAU,CAAE,EAAG,EAAU,OAAQ,CAAE,EAAG,GAAI,GAAY,GAAU,EAAQ,OAAO,EAEzF,IAAM,EAAc,EAAO,EAAK,QAAQ,OAAO,QAAU,EACzD,OAAO,SAAS,EAAG,CAAW,EAG9B,IAAK,IAAM,KAAK,EAAa,CAC3B,IAAM,EAAQ,EAAI,cAAc,0BAA0B,EAAE,GAAG,aAAa,sBAAsB,EAAE,GAAG,EACnG,IAAO,EAAM,UAAY,EAAE,IACjC,CAGA,EAAmB,EAAU,CAAM,EAGnC,EAAmB,CAAQ,EAIvB,GAAM,EAAmB,EAE7B,SAAS,cAAc,IAAI,YAAY,iBAAiB,CAAC,CAC3D,EAUA,OAPsB,EAAwB,GAAK,CAAC,EAAqB,EAEvE,SAAkB,wBAA0B,EAAO,CAAC,EAEpD,EAAO,EAGF,EACT,CAOA,SAAS,EAAU,EAA0B,EAAyC,CAKpF,GAFA,SAD0B,iBAAiB,oBAC3C,CAAA,CAAS,QAAS,GAAO,EAAG,OAAO,CAAC,EAEhC,GAAQ,EAAK,KAAK,CAAC,CAAC,OAAS,EAAG,CAElC,IAAM,EAAS,SAAS,cAAc,UAAU,EAChD,EAAO,UAAY,EACnB,IAAM,EAAW,EAAO,QAElB,EAAU,EAAS,cAAc,OAAO,EAC1C,IACF,SAAS,MAAQ,EAAQ,aAAe,GACxC,EAAQ,OAAO,GAEjB,SAAS,KAAK,YAAY,CAAQ,CACpC,MAAW,IACT,SAAS,MAAQ,EAErB,CAKA,IAAM,EAAgB,IAAI,QAQ1B,SAAS,GAA0B,CACjC,IAAM,EAAY,GAA4B,CAC5C,IAAM,EAAO,EAAK,aAAa,MAAM,EACrC,GAAI,CAAC,GAAQ,EAAK,WAAW,GAAG,GAAK,EAAK,WAAW,SAAS,GAAK,EAAK,WAAW,aAAa,EAC9F,OAAO,KAET,IAAM,EAAS,EAAK,QAAQ,GAAG,EAC/B,MAAO,CACL,KAAM,IAAW,GAAK,EAAO,EAAK,MAAM,EAAG,CAAM,EACjD,OAAQ,IAAW,GAAK,GAAK,EAAK,MAAM,CAAM,CAChD,CACF,EAEM,EAAe,GAA4B,CAE/C,GADI,EAAc,IAAI,CAAI,GACtB,CAAC,EAAe,CAAI,GAAK,EAAK,aAAa,kBAAkB,EAAG,OACpE,EAAc,IAAI,CAAI,EAGtB,IAAM,MAAmB,CACvB,IAAM,EAAO,EAAS,CAAI,EACtB,GAAM,EAAc,EAAK,KAAM,EAAK,MAAM,CAChD,EAKA,GAJA,EAAK,iBAAiB,eAAgB,EAAY,CAAE,KAAM,EAAK,CAAC,EAChE,EAAK,iBAAiB,QAAS,EAAY,CAAE,KAAM,EAAK,CAAC,EAGrD,EAAK,QAAQ,WAAa,YAAc,yBAA0B,OAAQ,CAC5E,IAAM,EAAW,IAAI,qBAClB,GAAY,CACX,IAAK,IAAM,KAAS,EAAS,CAC3B,GAAI,CAAC,EAAM,eAAgB,SAC3B,IAAM,EAAO,EAAS,EAAM,MAA2B,EACnD,GAAM,EAAc,EAAK,KAAM,EAAK,MAAM,EAC9C,EAAS,WAAW,CACtB,CACF,EACA,CAAE,WAAY,QAAS,UAAW,CAAE,CACtC,EACA,EAAS,QAAQ,CAAI,CACvB,CACF,EAEM,MAAqB,CACzB,IAAM,EAAQ,SAAS,iBAAoC,SAAS,EACpE,IAAK,IAAM,KAAQ,EAAO,EAAY,CAAI,CAC5C,EAEA,EAAa,EAIb,IAD6B,qBAAuB,EAAa,CACjE,CAAA,CAAiB,QAAQ,SAAS,KAAM,CAAE,UAAW,GAAM,QAAS,EAAK,CAAC,EAG1E,SAAS,iBAAiB,kBAAmB,CAAY,CAC3D,CAIA,SAAgB,GAA0B,CAInB,SAAS,cAC5B,qCAEE,CAAA,EAAc,aAAa,SAAS,IAAM,QAC5C,EAA0B,IAK5B,IAAM,EAAM,SAAS,eAAe,KAAK,EACrC,GAAK,EAAY,CAAG,EAExB,SAAS,iBAAiB,QAAS,KAAO,IAAU,CAElD,GADI,EAAE,aAAiB,aAAe,EAAY,CAAK,GACnD,EAAM,iBAAkB,OAC5B,IAAM,EAAQ,EAAM,OAAuB,QAAQ,GAAG,EACtD,GAAI,CAAC,GAAQ,CAAC,EAAe,CAAyB,EAAG,OAEzD,IAAM,EAAO,EAAK,aAAa,MAAM,EACrC,GAAI,CAAC,GAAQ,EAAK,WAAW,SAAS,GAAK,EAAK,WAAW,aAAa,EAAG,OAG3E,GAAI,EAAK,WAAW,GAAG,EAAG,CACxB,GAAI,EAAK,OAAS,EAAG,CACnB,IAAM,EAAS,SAAS,eAAe,EAAK,MAAM,CAAC,CAAC,EAChD,IACF,EAAM,eAAe,EACrB,EAAO,eAAe,CAAE,SAAU,SAAU,MAAO,OAAQ,CAAC,EAC5D,QAAQ,aAAa,KAAM,GAAI,CAAI,EAEvC,CACA,MACF,CAEA,EAAM,eAAe,EACrB,IAAM,EAAS,EAAK,QAAQ,GAAG,EAGzB,MAAM,EAFC,IAAW,GAAK,EAAO,EAAK,MAAM,EAAG,CAAM,EACzC,IAAW,GAAK,GAAK,EAAK,MAAM,CAAM,CAClB,GACjC,SAAS,OAAO,CAAI,CAExB,CAAC,EAED,OAAO,iBAAiB,WAAa,GAAU,CAG7C,EAFc,EAAM,OACE,GAAK,SAAS,SACZ,SAAS,OAAQ,EAAK,CAChD,CAAC,EAED,EAAkB,CACpB,CAQA,SAAgB,GAA2B,CACzC,EAAc,MAAM,EACpB,EAAqB,KACrB,EAA0B,GAC1B,EAAgB,IAClB"}

{"version":3,"file":"client.cjs","names":[],"sources":["../../../src/router/client.ts"],"sourcesContent":["/**\n * Client-side router for Nix.js Kit.\n *\n * Intercepts clicks on internal links, fetches the rendered page body from\n * `/__nix-js/render`, swaps the `#app` content and updates the history state.\n * This is loaded as part of the client bundle instead of being inlined in\n * every HTML page.\n *\n * Features:\n * - SPA navigation with head merge (title, meta, OG tags)\n * - Scroll restoration on back/forward\n * - Prefetch on hover/focus (Astro-style), with opt-in viewport prefetch\n * - View Transitions API with `prefers-reduced-motion` respect\n */\n\ninterface RenderPayload {\n title?: string;\n body: string;\n /** Set-Cookie value relayed by the server to clear a consumed action error. */\n clearActionErrorCookie?: string;\n /** `` tags (title, meta, OG, twitter) to merge on navigation. */\n head?: string;\n}\n\n/**\n * Whether the `/__nix-js/render` endpoint has been detected. Static builds emit\n * `` so this starts as\n * `false` with zero probe requests. For older builds, a single shared probe\n * determines availability so concurrent prefetches never storm the endpoint.\n */\nlet renderEndpointAvailable = true;\n\n/** Shared in-flight probe promise; at most one request hits the endpoint. */\nlet endpointProbe: Promise | null = null;\n\n/** Resolves endpoint availability, caching the result for the page lifetime. */\nfunction resolveEndpointAvailability(): Promise {\n if (!renderEndpointAvailable) return Promise.resolve(false);\n if (!endpointProbe) {\n endpointProbe = (async () => {\n const url = new URL(\"/__nix-js/render\", location.origin);\n url.searchParams.set(\"page\", \"/\");\n try {\n const response = await fetch(url.toString(), {\n headers: { Accept: \"application/json\", \"X-Nix-Probe\": \"1\" },\n });\n renderEndpointAvailable = response.ok;\n return response.ok;\n } catch {\n renderEndpointAvailable = false;\n return false;\n }\n })();\n }\n return endpointProbe;\n}\n\nfunction isInternalLink(link: HTMLAnchorElement): boolean {\n return (\n link.tagName === \"A\" &&\n link.hostname === location.hostname &&\n link.target === \"\" &&\n !link.getAttribute(\"download\") &&\n !link.hasAttribute(\"data-no-router\")\n );\n}\n\nfunction hasModifier(event: MouseEvent): boolean {\n return event.metaKey || event.ctrlKey || event.shiftKey || event.altKey;\n}\n\n// --- Prefetch cache ---\n\nconst PREFETCH_TTL_MS = 30_000; // 30 seconds\n\ninterface CacheEntry {\n payload: RenderPayload;\n ts: number;\n}\n\nconst prefetchCache = new Map();\n\n/** Builds the cache key from pathname + search. */\nfunction cacheKey(pathname: string, search: string): string {\n return pathname + search;\n}\n\n/** Returns a cached payload if fresh, otherwise undefined. */\nfunction getCached(key: string): RenderPayload | undefined {\n const entry = prefetchCache.get(key);\n if (!entry) return undefined;\n if (Date.now() - entry.ts > PREFETCH_TTL_MS) {\n prefetchCache.delete(key);\n return undefined;\n }\n return entry.payload;\n}\n\n/** Stores a payload in the prefetch cache. */\nfunction setCached(key: string, payload: RenderPayload): void {\n prefetchCache.set(key, { payload, ts: Date.now() });\n}\n\n/**\n * Fetches the render payload for a path. Uses the prefetch cache when fresh.\n * Stores the result in the cache for subsequent navigations.\n *\n * On static deployments (no `/__nix-js/render` endpoint), falls back to\n * fetching the full HTML page and extracting `#app` + `` tags.\n */\nasync function fetchPayload(pathname: string, search: string, signal?: AbortSignal): Promise {\n const key = cacheKey(pathname, search);\n const cached = getCached(key);\n if (cached) return cached;\n\n // Wait on the shared probe so concurrent prefetches generate at most ONE\n // request against the endpoint (the rest go straight to the HTML fallback).\n if (renderEndpointAvailable) {\n if (await resolveEndpointAvailability()) {\n const payload = await fetchFromRenderEndpoint(pathname, search, signal);\n if (payload) {\n setCached(key, payload);\n return payload;\n }\n // The endpoint exists but couldn't render this specific page — fall\n // through to the HTML-based fetch without disabling it globally.\n }\n }\n\n // Static fallback: fetch the full HTML page and extract #app + head.\n const payload = await fetchFromHtml(pathname, search, signal);\n if (payload) {\n setCached(key, payload);\n }\n return payload;\n}\n\n/** Attempts to fetch from the `/__nix-js/render` JSON endpoint. */\nasync function fetchFromRenderEndpoint(pathname: string, search: string, signal?: AbortSignal): Promise {\n const url = new URL(\"/__nix-js/render\", location.origin);\n url.searchParams.set(\"page\", pathname);\n const current = new URL(location.href);\n url.searchParams.set(\"search\", search || current.search);\n\n let response: Response;\n try {\n response = await fetch(url.toString(), { headers: { Accept: \"application/json\" }, signal });\n } catch (err) {\n if (err instanceof DOMException && err.name === \"AbortError\") return undefined;\n return undefined;\n }\n if (!response.ok) return undefined;\n\n let payload: RenderPayload;\n try {\n payload = await response.json();\n } catch {\n return undefined;\n }\n return payload;\n}\n\n/**\n * Static-mode fallback: fetches the full HTML page for the path and extracts\n * the `#app` innerHTML plus managed `` tags (`[data-nix-js-head]`).\n * Also extracts ``, stylesheets, and headLinks for SPA navigation.\n */\nasync function fetchFromHtml(pathname: string, search: string, signal?: AbortSignal): Promise<RenderPayload | undefined> {\n const fullUrl = pathname + (search || \"\");\n let response: Response;\n try {\n response = await fetch(fullUrl, { headers: { Accept: \"text/html\" }, signal });\n } catch (err) {\n if (err instanceof DOMException && err.name === \"AbortError\") return undefined;\n return undefined;\n }\n if (!response.ok) return undefined;\n\n let html: string;\n try {\n html = await response.text();\n } catch {\n return undefined;\n }\n\n // Parse the full HTML document.\n const parser = new DOMParser();\n const doc = parser.parseFromString(html, \"text/html\");\n\n // Extract #app innerHTML — this is the page body.\n const appEl = doc.getElementById(\"app\");\n if (!appEl) return undefined;\n const body = appEl.innerHTML;\n\n // Extract managed head tags (data-nix-js-head) for mergeHead.\n const headTags = doc.querySelectorAll(\"[data-nix-js-head]\");\n let head = \"\";\n for (const tag of headTags) {\n head += tag.outerHTML;\n }\n\n // Also extract headLinks (favicons, manifest, theme-color) so they persist.\n // These don't have data-nix-js-head, so we grab them separately.\n const linkTags = doc.head.querySelectorAll(\"link[rel='icon'], link[rel='apple-touch-icon'], link[rel='manifest'], meta[name='theme-color']\");\n for (const tag of linkTags) {\n // Skip if already in the current document head\n const href = tag.getAttribute(\"href\");\n if (href && document.head.querySelector(`link[href=\"${href}\"]`)) continue;\n head += tag.outerHTML;\n }\n\n const title = doc.querySelector(\"title\")?.textContent ?? undefined;\n\n return { body, head, title };\n}\n\n/**\n * Prefetches a path without navigating. Called by the IntersectionObserver\n * when a link enters the viewport, and on hover/focus.\n */\nexport async function prefetch(pathname: string, search = \"\"): Promise<void> {\n const key = cacheKey(pathname, search);\n if (prefetchCache.has(key)) {\n // Already cached or in-flight — skip.\n const entry = prefetchCache.get(key)!;\n if (Date.now() - entry.ts <= PREFETCH_TTL_MS) return;\n }\n await fetchPayload(pathname, search);\n}\n\n// --- View Transitions ---\n\n/** Returns true if the user prefers reduced motion. */\nfunction prefersReducedMotion(): boolean {\n return window.matchMedia?.(\"(prefers-reduced-motion: reduce)\").matches ?? false;\n}\n\n/** Returns true if the View Transitions API is available. */\nfunction supportsViewTransitions(): boolean {\n return typeof (document as any).startViewTransition === \"function\";\n}\n\n// --- Navigation ---\n\n/**\n * Guard against concurrent navigations. When a navigation is in-flight, a new\n * request cancels the previous one (abort + ignore its result). This prevents\n * race conditions where two rapid clicks could swap content out of order.\n */\nlet inFlightNavigation: {\n controller: AbortController;\n pathname: string;\n} | null = null;\n\n/**\n * Cancels any in-flight navigation so a new one can proceed cleanly.\n */\nfunction cancelInFlightNavigation(): void {\n if (inFlightNavigation) {\n inFlightNavigation.controller.abort();\n inFlightNavigation = null;\n }\n}\n\n/**\n * Hoists `<link rel=\"stylesheet\">` and `<style>` tags from inside `#app` into\n * `<head>` so they persist across SPA navigations (prevents FOUC/flashing).\n * Deduplicates by `href` for links and by text content for styles.\n */\nexport function hoistStyles(container: ParentNode): void {\n const links = container.querySelectorAll<HTMLLinkElement>('link[rel=\"stylesheet\"]');\n for (const link of links) {\n const href = link.getAttribute(\"href\");\n if (!href) continue;\n // Already in <head>?\n const existing = document.head.querySelector(`link[rel=\"stylesheet\"][href=\"${href}\"]`);\n if (existing) {\n link.remove();\n continue;\n }\n // Mark as hoisted so we can clean up later if needed\n link.setAttribute(\"data-nix-js-hoisted\", \"\");\n document.head.appendChild(link);\n }\n\n const styles = container.querySelectorAll<HTMLStyleElement>(\"style\");\n for (const style of styles) {\n const text = style.textContent?.trim();\n if (!text) continue;\n // Check if an identical style already exists in <head>\n const existing = Array.from(document.head.querySelectorAll(\"style\")).find(\n (s) => s.textContent?.trim() === text,\n );\n if (existing) {\n style.remove();\n continue;\n }\n style.setAttribute(\"data-nix-js-hoisted\", \"\");\n document.head.appendChild(style);\n }\n}\n\n/**\n * Announces a route change to assistive technology via an aria-live region.\n * This is critical for screen reader users who need to know the page content\n * has changed after a SPA navigation.\n */\nfunction announceNavigation(pathname: string): void {\n let liveRegion = document.getElementById(\"nix-js-route-announcer\");\n if (!liveRegion) {\n liveRegion = document.createElement(\"div\");\n liveRegion.id = \"nix-js-route-announcer\";\n liveRegion.setAttribute(\"aria-live\", \"assertive\");\n liveRegion.setAttribute(\"aria-atomic\", \"true\");\n liveRegion.setAttribute(\"role\", \"status\");\n // Visually hidden but available to screen readers.\n liveRegion.setAttribute(\"style\", \"position:absolute;left:-9999px;width:1px;height:1px;overflow:hidden;\");\n document.body.appendChild(liveRegion);\n }\n // Clear and re-set so screen readers announce the change.\n liveRegion.textContent = \"\";\n // Use a microtask delay so the DOM update is picked up by AT.\n // Guard against the document being torn down (e.g. in tests).\n const region = liveRegion;\n const timer = setTimeout(() => {\n if (typeof document !== \"undefined\" && region) {\n const title = document.title || pathname;\n region.textContent = title;\n }\n }, 50);\n // Don't keep the process alive just for the announcer.\n if (typeof timer === \"object\" && timer && \"unref\" in timer) {\n (timer as { unref: () => void }).unref();\n }\n}\n\n/**\n * Moves focus to the main content area after a SPA navigation. This follows\n * the WAI-ARIA pattern for route changes: if the #app has a tabindex=-1, focus\n * it; otherwise create a temporary focus target.\n */\nfunction moveFocusToContent(): void {\n const app = document.getElementById(\"app\");\n if (!app) return;\n // Ensure the container is focusable.\n if (!app.hasAttribute(\"tabindex\")) {\n app.setAttribute(\"tabindex\", \"-1\");\n }\n // Remove outline only for mouse users; keyboard users keep it.\n app.focus({ preventScroll: false });\n}\n\n/**\n * Updates the canonical URL and og:url meta tags after navigation.\n */\nfunction updateCanonicalUrl(pathname: string, search: string): void {\n const fullUrl = location.origin + pathname + (search || \"\");\n // Update or create canonical link.\n let canonical = document.querySelector<HTMLLinkElement>('link[rel=\"canonical\"]');\n if (!canonical) {\n canonical = document.createElement(\"link\");\n canonical.rel = \"canonical\";\n document.head.appendChild(canonical);\n }\n canonical.href = fullUrl;\n // Update og:url meta.\n let ogUrl = document.querySelector<HTMLMetaElement>('meta[property=\"og:url\"]');\n if (!ogUrl) {\n ogUrl = document.createElement(\"meta\");\n ogUrl.setAttribute(\"property\", \"og:url\");\n document.head.appendChild(ogUrl);\n }\n ogUrl.content = fullUrl;\n}\n\n/**\n * Navigates to a page without a full reload: fetches the fresh body from the\n * `/__nix-js/render` endpoint, swaps `#app`, updates the document title and\n * dispatches `nix-js:rendered` so islands re-hydrate. Used by the router on\n * clicks and available for programmatic navigation (e.g. after a server\n * action returns a redirect, so the target page shows fresh server data).\n *\n * Concurrent navigations are handled: a new navigateTo() cancels any\n * in-flight navigation to prevent out-of-order content swaps.\n *\n * @param pathname Path without query, e.g. \"/movies/inception\".\n * @param search Query string, e.g. \"?reviewed=1\" (optional).\n * @param push Whether to push a history entry (default true).\n * @returns true on success, false if the render failed.\n */\nexport async function navigateTo(pathname: string, search = \"\", push = true): Promise<boolean> {\n // Cancel any previous in-flight navigation to prevent race conditions.\n cancelInFlightNavigation();\n\n const controller = new AbortController();\n inFlightNavigation = { controller, pathname };\n\n let payload: RenderPayload | undefined;\n try {\n payload = await fetchPayload(pathname, search, controller.signal);\n } catch (err) {\n if (controller.signal.aborted) return false; // superseded by a newer nav\n throw err;\n }\n\n // If a newer navigation started while we were fetching, bail out.\n if (inFlightNavigation && inFlightNavigation.controller !== controller) {\n if (controller.signal.aborted) return false;\n }\n inFlightNavigation = null;\n\n if (!payload) return false;\n\n const app = document.getElementById(\"app\");\n if (!app) return false;\n\n // Save scroll position in the current history entry before navigating.\n if (push) {\n history.replaceState(\n { n: location.pathname, scroll: window.scrollY },\n \"\",\n location.href,\n );\n }\n\n const current = new URL(location.href);\n const doSwap = () => {\n // Save scroll positions of scrollable elements (e.g. sidebar) before swap\n const scrollables: { el: Element; top: number }[] = [];\n app.querySelectorAll(\"[data-scroll-preserve]\").forEach((el) => {\n scrollables.push({ el, top: el.scrollTop });\n });\n\n // Hoist any stylesheets from the current #app content to <head> before\n // the swap, so they persist and don't cause a flash.\n hoistStyles(app);\n\n // Parse the new body and hoist its styles before injecting, so the\n // browser never sees a frame without styles.\n const temp = document.createElement(\"template\");\n temp.innerHTML = payload.body;\n hoistStyles(temp.content as unknown as HTMLElement);\n\n // Inject the remaining body (styles already moved to <head>)\n app.innerHTML = temp.innerHTML;\n mergeHead(payload.head, payload.title);\n if (payload.clearActionErrorCookie) {\n document.cookie = payload.clearActionErrorCookie;\n }\n if (push) {\n history.pushState({ n: pathname, scroll: 0 }, \"\", pathname + (search || current.search));\n }\n const savedScroll = push ? 0 : (history.state?.scroll ?? 0);\n window.scrollTo(0, savedScroll);\n\n // Restore scroll positions of preserved elements\n for (const s of scrollables) {\n const newEl = app.querySelector(`[data-scroll-preserve=\"${s.el.getAttribute(\"data-scroll-preserve\")}\"]`);\n if (newEl) newEl.scrollTop = s.top;\n }\n\n // Update canonical URL and OG tags for the new route.\n updateCanonicalUrl(pathname, search);\n\n // Announce the navigation to screen readers.\n announceNavigation(pathname);\n\n // Move focus to the main content for keyboard/screen reader users.\n // Only on push (forward navigation), not on back/forward (popstate).\n if (push) moveFocusToContent();\n\n document.dispatchEvent(new CustomEvent(\"nix-js:rendered\"));\n };\n\n // Use View Transitions when available and the user hasn't opted out.\n const useTransition = supportsViewTransitions() && !prefersReducedMotion();\n if (useTransition) {\n (document as any).startViewTransition(() => doSwap());\n } else {\n doSwap();\n }\n\n return true;\n}\n\n/**\n * Replaces all `<head>` tags marked with `data-nix-js-head` with the new ones\n * from the server payload. Also updates `document.title` when a title tag is\n * present in the new head.\n */\nfunction mergeHead(head: string | undefined, fallbackTitle: string | undefined): void {\n // Remove existing managed tags.\n const existing = document.querySelectorAll(\"[data-nix-js-head]\");\n existing.forEach((el) => el.remove());\n\n if (head && head.trim().length > 0) {\n // Parse the head tags from the server and insert them into <head>.\n const parser = document.createElement(\"template\");\n parser.innerHTML = head;\n const fragment = parser.content;\n // Extract the <title> if present and set document.title directly.\n const titleEl = fragment.querySelector(\"title\");\n if (titleEl) {\n document.title = titleEl.textContent ?? \"\";\n titleEl.remove();\n }\n document.head.appendChild(fragment);\n } else if (fallbackTitle) {\n document.title = fallbackTitle;\n }\n}\n\n// --- Link prefetch observers ---\n\n/** Set of links currently being observed for prefetch. */\nconst observedLinks = new WeakSet<HTMLAnchorElement>();\n\n/**\n * Sets up prefetch on internal links. Default is interaction-only (hover or\n * focus) — the same behavior as Astro — so a page load never fires a burst of\n * fetches for every link in the viewport. Links can opt into viewport\n * prefetching with `data-prefetch=\"viewport\"`.\n */\nfunction setupLinkPrefetch(): void {\n const linkInfo = (link: HTMLAnchorElement) => {\n const href = link.getAttribute(\"href\");\n if (!href || href.startsWith(\"#\") || href.startsWith(\"mailto:\") || href.startsWith(\"javascript:\")) {\n return null;\n }\n const qIndex = href.indexOf(\"?\");\n return {\n path: qIndex === -1 ? href : href.slice(0, qIndex),\n search: qIndex === -1 ? \"\" : href.slice(qIndex),\n };\n };\n\n const observeLink = (link: HTMLAnchorElement) => {\n if (observedLinks.has(link)) return;\n if (!isInternalLink(link) || link.hasAttribute(\"data-no-prefetch\")) return;\n observedLinks.add(link);\n\n // Interaction prefetch (default): hover or focus.\n const onInteract = () => {\n const info = linkInfo(link);\n if (info) void prefetch(info.path, info.search);\n };\n link.addEventListener(\"pointerenter\", onInteract, { once: true });\n link.addEventListener(\"focus\", onInteract, { once: true });\n\n // Opt-in viewport prefetch via data-prefetch=\"viewport\".\n if (link.dataset.prefetch === \"viewport\" && \"IntersectionObserver\" in window) {\n const observer = new IntersectionObserver(\n (entries) => {\n for (const entry of entries) {\n if (!entry.isIntersecting) continue;\n const info = linkInfo(entry.target as HTMLAnchorElement);\n if (info) void prefetch(info.path, info.search);\n observer.disconnect();\n }\n },\n { rootMargin: \"200px\", threshold: 0 },\n );\n observer.observe(link);\n }\n };\n\n const observeLinks = () => {\n const links = document.querySelectorAll<HTMLAnchorElement>(\"a[href]\");\n for (const link of links) observeLink(link);\n };\n\n observeLinks();\n\n // Re-scan when the DOM changes (e.g. after SPA navigation).\n const mutationObserver = new MutationObserver(() => observeLinks());\n mutationObserver.observe(document.body, { childList: true, subtree: true });\n\n // Re-scan after each SPA navigation.\n document.addEventListener(\"nix-js:rendered\", observeLinks);\n}\n\n// --- Router bootstrap ---\n\nexport function startClientRouter(): void {\n // Static builds emit this marker, so the client never probes the render\n // endpoint (zero 404s on fully static deployments). The meta lives in the\n // initial HTML head and persists across SPA navigations.\n const endpointMeta = document.querySelector<HTMLMetaElement>(\n 'meta[name=\"nix-js:render-endpoint\"]',\n );\n if (endpointMeta?.getAttribute(\"content\") === \"off\") {\n renderEndpointAvailable = false;\n }\n\n // Hoist styles from #app to <head> immediately on page load.\n // This prevents FOUC on the first SPA navigation.\n const app = document.getElementById(\"app\");\n if (app) hoistStyles(app);\n\n document.addEventListener(\"click\", async (event) => {\n if (!(event instanceof MouseEvent) || hasModifier(event)) return;\n if (event.defaultPrevented) return;\n const link = (event.target as HTMLElement).closest(\"a\");\n if (!link || !isInternalLink(link as HTMLAnchorElement)) return;\n\n const href = link.getAttribute(\"href\");\n if (!href || href.startsWith(\"mailto:\") || href.startsWith(\"javascript:\")) return;\n\n // Handle hash links: scroll to the element if it exists on the page\n if (href.startsWith(\"#\")) {\n if (href.length > 1) {\n const target = document.getElementById(href.slice(1));\n if (target) {\n event.preventDefault();\n target.scrollIntoView({ behavior: \"smooth\", block: \"start\" });\n history.replaceState(null, \"\", href);\n }\n }\n return;\n }\n\n event.preventDefault();\n const qIndex = href.indexOf(\"?\");\n const path = qIndex === -1 ? href : href.slice(0, qIndex);\n const search = qIndex === -1 ? \"\" : href.slice(qIndex);\n if (!(await navigateTo(path, search))) {\n location.assign(href);\n }\n });\n\n window.addEventListener(\"popstate\", (event) => {\n const state = event.state as { n?: string; scroll?: number } | null;\n const target = state?.n ?? location.pathname;\n void navigateTo(target, location.search, false);\n });\n\n setupLinkPrefetch();\n}\n\n// --- Test helpers (not part of the public API) ---\n\n/**\n * Resets all internal router state. Intended for test isolation only.\n * @internal\n */\nexport function __resetRouterState(): void {\n prefetchCache.clear();\n inFlightNavigation = null;\n renderEndpointAvailable = true;\n endpointProbe = null;\n}\n\n"],"mappings":"mEA8BA,IAAI,EAA0B,GAG1B,EAAyC,KAG7C,SAAS,GAAgD,CAkBvD,OAjBK,GACL,AACE,KAAiB,SAAY,CAC3B,IAAM,EAAM,IAAI,IAAI,mBAAoB,SAAS,MAAM,EACvD,EAAI,aAAa,IAAI,OAAQ,GAAG,EAChC,GAAI,CACF,IAAM,EAAW,MAAM,MAAM,EAAI,SAAS,EAAG,CAC3C,QAAS,CAAE,OAAQ,mBAAoB,cAAe,GAAI,CAC5D,CAAC,EAED,MADA,GAA0B,EAAS,GAC5B,EAAS,EAClB,MAAQ,CAEN,MADA,GAA0B,GACnB,EACT,CACF,EAAA,CAAG,EAEE,GAjB8B,QAAQ,QAAQ,EAAK,CAkB5D,CAEA,SAAS,EAAe,EAAkC,CACxD,OACE,EAAK,UAAY,KACjB,EAAK,WAAa,SAAS,UAC3B,EAAK,SAAW,IAChB,CAAC,EAAK,aAAa,UAAU,GAC7B,CAAC,EAAK,aAAa,gBAAgB,CAEvC,CAEA,SAAS,EAAY,EAA4B,CAC/C,OAAO,EAAM,SAAW,EAAM,SAAW,EAAM,UAAY,EAAM,MACnE,CAIA,IAAM,EAAkB,IAOlB,EAAgB,IAAI,IAG1B,SAAS,EAAS,EAAkB,EAAwB,CAC1D,OAAO,EAAW,CACpB,CAGA,SAAS,EAAU,EAAwC,CACzD,IAAM,EAAQ,EAAc,IAAI,CAAG,EAC9B,KACL,IAAI,KAAK,IAAI,EAAI,EAAM,GAAK,EAAiB,CAC3C,EAAc,OAAO,CAAG,EACxB,MACF,CACA,OAAO,EAAM,OADb,CAEF,CAGA,SAAS,EAAU,EAAa,EAA8B,CAC5D,EAAc,IAAI,EAAK,CAAE,UAAS,GAAI,KAAK,IAAI,CAAE,CAAC,CACpD,CASA,eAAe,EAAa,EAAkB,EAAgB,EAA0D,CACtH,IAAM,EAAM,EAAS,EAAU,CAAM,EAC/B,EAAS,EAAU,CAAG,EAC5B,GAAI,EAAQ,OAAO,EAInB,GAAI,GACE,MAAM,EAA4B,EAAG,CACvC,IAAM,EAAU,MAAM,EAAwB,EAAU,EAAQ,CAAM,EACtE,GAAI,EAEF,OADA,EAAU,EAAK,CAAO,EACf,CAIX,CAIF,IAAM,EAAU,MAAM,EAAc,EAAU,EAAQ,CAAM,EAI5D,OAHI,GACF,EAAU,EAAK,CAAO,EAEjB,CACT,CAGA,eAAe,EAAwB,EAAkB,EAAgB,EAA0D,CACjI,IAAM,EAAM,IAAI,IAAI,mBAAoB,SAAS,MAAM,EACvD,EAAI,aAAa,IAAI,OAAQ,CAAQ,EACrC,IAAM,EAAU,IAAI,IAAI,SAAS,IAAI,EACrC,EAAI,aAAa,IAAI,SAAU,GAAU,EAAQ,MAAM,EAEvD,IAAI,EACJ,GAAI,CACF,EAAW,MAAM,MAAM,EAAI,SAAS,EAAG,CAAE,QAAS,CAAE,OAAQ,kBAAmB,EAAG,QAAO,CAAC,CAC5F,OAAS,EAAK,CACR,aAAe,cAAgB,EAAI,KACvC,MACF,CACA,GAAI,CAAC,EAAS,GAAI,OAElB,IAAI,EACJ,GAAI,CACF,EAAU,MAAM,EAAS,KAAK,CAChC,MAAQ,CACN,MACF,CACA,OAAO,CACT,CAOA,eAAe,EAAc,EAAkB,EAAgB,EAA0D,CACvH,IAAM,EAAU,GAAY,GAAU,IAClC,EACJ,GAAI,CACF,EAAW,MAAM,MAAM,EAAS,CAAE,QAAS,CAAE,OAAQ,WAAY,EAAG,QAAO,CAAC,CAC9E,OAAS,EAAK,CACR,aAAe,cAAgB,EAAI,KACvC,MACF,CACA,GAAI,CAAC,EAAS,GAAI,OAElB,IAAI,EACJ,GAAI,CACF,EAAO,MAAM,EAAS,KAAK,CAC7B,MAAQ,CACN,MACF,CAIA,IAAM,EAAM,IADO,UACP,CAAA,CAAO,gBAAgB,EAAM,WAAW,EAG9C,EAAQ,EAAI,eAAe,KAAK,EACtC,GAAI,CAAC,EAAO,OACZ,IAAM,EAAO,EAAM,UAGb,EAAW,EAAI,iBAAiB,oBAAoB,EACtD,EAAO,GACX,IAAK,IAAM,KAAO,EAChB,GAAQ,EAAI,UAKd,IAAM,EAAW,EAAI,KAAK,iBAAiB,gGAAgG,EAC3I,IAAK,IAAM,KAAO,EAAU,CAE1B,IAAM,EAAO,EAAI,aAAa,MAAM,EAChC,GAAQ,SAAS,KAAK,cAAc,cAAc,EAAK,GAAG,IAC9D,GAAQ,EAAI,UACd,CAEA,IAAM,EAAQ,EAAI,cAAc,OAAO,CAAC,EAAE,aAAe,IAAA,GAEzD,MAAO,CAAE,OAAM,OAAM,OAAM,CAC7B,CAMA,eAAsB,EAAS,EAAkB,EAAS,GAAmB,CAC3E,IAAM,EAAM,EAAS,EAAU,CAAM,EACrC,GAAI,EAAc,IAAI,CAAG,EAAG,CAE1B,IAAM,EAAQ,EAAc,IAAI,CAAG,EACnC,GAAI,KAAK,IAAI,EAAI,EAAM,IAAM,EAAiB,MAChD,CACA,MAAM,EAAa,EAAU,CAAM,CACrC,CAKA,SAAS,GAAgC,CACvC,OAAO,OAAO,aAAa,kCAAkC,CAAC,CAAC,SAAW,EAC5E,CAGA,SAAS,GAAmC,CAC1C,OAAO,OAAQ,SAAiB,qBAAwB,UAC1D,CASA,IAAI,EAGO,KAKX,SAAS,GAAiC,CACxC,AAEE,KADA,EAAmB,WAAW,MAAM,EACf,KAEzB,CAOA,SAAgB,EAAY,EAA6B,CACvD,IAAM,EAAQ,EAAU,iBAAkC,wBAAwB,EAClF,IAAK,IAAM,KAAQ,EAAO,CACxB,IAAM,EAAO,EAAK,aAAa,MAAM,EAChC,KAGL,IADiB,SAAS,KAAK,cAAc,gCAAgC,EAAK,GAC9E,EAAU,CACZ,EAAK,OAAO,EACZ,QACF,CAEA,EAAK,aAAa,sBAAuB,EAAE,EAC3C,SAAS,KAAK,YAAY,CAAI,CAH9B,CAIF,CAEA,IAAM,EAAS,EAAU,iBAAmC,OAAO,EACnE,IAAK,IAAM,KAAS,EAAQ,CAC1B,IAAM,EAAO,EAAM,aAAa,KAAK,EAChC,KAKL,IAHiB,MAAM,KAAK,SAAS,KAAK,iBAAiB,OAAO,CAAC,CAAC,CAAC,KAClE,GAAM,EAAE,aAAa,KAAK,IAAM,CAE/B,EAAU,CACZ,EAAM,OAAO,EACb,QACF,CACA,EAAM,aAAa,sBAAuB,EAAE,EAC5C,SAAS,KAAK,YAAY,CAAK,CAF/B,CAGF,CACF,CAOA,SAAS,EAAmB,EAAwB,CAClD,IAAI,EAAa,SAAS,eAAe,wBAAwB,EAC5D,IACH,EAAa,SAAS,cAAc,KAAK,EACzC,EAAW,GAAK,yBAChB,EAAW,aAAa,YAAa,WAAW,EAChD,EAAW,aAAa,cAAe,MAAM,EAC7C,EAAW,aAAa,OAAQ,QAAQ,EAExC,EAAW,aAAa,QAAS,sEAAsE,EACvG,SAAS,KAAK,YAAY,CAAU,GAGtC,EAAW,YAAc,GAGzB,IAAM,EAAS,EACT,EAAQ,eAAiB,CAC7B,GAAI,OAAO,SAAa,KAAe,EAAQ,CAC7C,IAAM,EAAQ,SAAS,OAAS,EAChC,EAAO,YAAc,CACvB,CACF,EAAG,EAAE,EAED,OAAO,GAAU,UAAY,GAAS,UAAW,GACnD,EAAiC,MAAM,CAE3C,CAOA,SAAS,GAA2B,CAClC,IAAM,EAAM,SAAS,eAAe,KAAK,EACpC,IAEA,EAAI,aAAa,UAAU,GAC9B,EAAI,aAAa,WAAY,IAAI,EAGnC,EAAI,MAAM,CAAE,cAAe,EAAM,CAAC,EACpC,CAKA,SAAS,EAAmB,EAAkB,EAAsB,CAClE,IAAM,EAAU,SAAS,OAAS,GAAY,GAAU,IAEpD,EAAY,SAAS,cAA+B,uBAAuB,EAC1E,IACH,EAAY,SAAS,cAAc,MAAM,EACzC,EAAU,IAAM,YAChB,SAAS,KAAK,YAAY,CAAS,GAErC,EAAU,KAAO,EAEjB,IAAI,EAAQ,SAAS,cAA+B,yBAAyB,EACxE,IACH,EAAQ,SAAS,cAAc,MAAM,EACrC,EAAM,aAAa,WAAY,QAAQ,EACvC,SAAS,KAAK,YAAY,CAAK,GAEjC,EAAM,QAAU,CAClB,CAiBA,eAAsB,EAAW,EAAkB,EAAS,GAAI,EAAO,GAAwB,CAE7F,EAAyB,EAEzB,IAAM,EAAa,IAAI,gBACvB,EAAqB,CAAE,aAAY,UAAS,EAE5C,IAAI,EACJ,GAAI,CACF,EAAU,MAAM,EAAa,EAAU,EAAQ,EAAW,MAAM,CAClE,OAAS,EAAK,CACZ,GAAI,EAAW,OAAO,QAAS,MAAO,GACtC,MAAM,CACR,CAQA,GALI,GAAsB,EAAmB,aAAe,GACtD,EAAW,OAAO,UAExB,EAAqB,KAEjB,CAAC,GAAS,MAAO,GAErB,IAAM,EAAM,SAAS,eAAe,KAAK,EACzC,GAAI,CAAC,EAAK,MAAO,GAGb,GACF,QAAQ,aACN,CAAE,EAAG,SAAS,SAAU,OAAQ,OAAO,OAAQ,EAC/C,GACA,SAAS,IACX,EAGF,IAAM,EAAU,IAAI,IAAI,SAAS,IAAI,EAC/B,MAAe,CAEnB,IAAM,EAA8C,CAAC,EACrD,EAAI,iBAAiB,wBAAwB,CAAC,CAAC,QAAS,GAAO,CAC7D,EAAY,KAAK,CAAE,KAAI,IAAK,EAAG,SAAU,CAAC,CAC5C,CAAC,EAID,EAAY,CAAG,EAIf,IAAM,EAAO,SAAS,cAAc,UAAU,EAC9C,EAAK,UAAY,EAAQ,KACzB,EAAY,EAAK,OAAiC,EAGlD,EAAI,UAAY,EAAK,UACrB,EAAU,EAAQ,KAAM,EAAQ,KAAK,EACjC,EAAQ,yBACV,SAAS,OAAS,EAAQ,wBAExB,GACF,QAAQ,UAAU,CAAE,EAAG,EAAU,OAAQ,CAAE,EAAG,GAAI,GAAY,GAAU,EAAQ,OAAO,EAEzF,IAAM,EAAc,EAAO,EAAK,QAAQ,OAAO,QAAU,EACzD,OAAO,SAAS,EAAG,CAAW,EAG9B,IAAK,IAAM,KAAK,EAAa,CAC3B,IAAM,EAAQ,EAAI,cAAc,0BAA0B,EAAE,GAAG,aAAa,sBAAsB,EAAE,GAAG,EACnG,IAAO,EAAM,UAAY,EAAE,IACjC,CAGA,EAAmB,EAAU,CAAM,EAGnC,EAAmB,CAAQ,EAIvB,GAAM,EAAmB,EAE7B,SAAS,cAAc,IAAI,YAAY,iBAAiB,CAAC,CAC3D,EAUA,OAPsB,EAAwB,GAAK,CAAC,EAAqB,EAEvE,SAAkB,wBAA0B,EAAO,CAAC,EAEpD,EAAO,EAGF,EACT,CAOA,SAAS,EAAU,EAA0B,EAAyC,CAKpF,GAFA,SAD0B,iBAAiB,oBAC3C,CAAA,CAAS,QAAS,GAAO,EAAG,OAAO,CAAC,EAEhC,GAAQ,EAAK,KAAK,CAAC,CAAC,OAAS,EAAG,CAElC,IAAM,EAAS,SAAS,cAAc,UAAU,EAChD,EAAO,UAAY,EACnB,IAAM,EAAW,EAAO,QAElB,EAAU,EAAS,cAAc,OAAO,EAC1C,IACF,SAAS,MAAQ,EAAQ,aAAe,GACxC,EAAQ,OAAO,GAEjB,SAAS,KAAK,YAAY,CAAQ,CACpC,MAAW,IACT,SAAS,MAAQ,EAErB,CAKA,IAAM,EAAgB,IAAI,QAQ1B,SAAS,GAA0B,CACjC,IAAM,EAAY,GAA4B,CAC5C,IAAM,EAAO,EAAK,aAAa,MAAM,EACrC,GAAI,CAAC,GAAQ,EAAK,WAAW,GAAG,GAAK,EAAK,WAAW,SAAS,GAAK,EAAK,WAAW,aAAa,EAC9F,OAAO,KAET,IAAM,EAAS,EAAK,QAAQ,GAAG,EAC/B,MAAO,CACL,KAAM,IAAW,GAAK,EAAO,EAAK,MAAM,EAAG,CAAM,EACjD,OAAQ,IAAW,GAAK,GAAK,EAAK,MAAM,CAAM,CAChD,CACF,EAEM,EAAe,GAA4B,CAE/C,GADI,EAAc,IAAI,CAAI,GACtB,CAAC,EAAe,CAAI,GAAK,EAAK,aAAa,kBAAkB,EAAG,OACpE,EAAc,IAAI,CAAI,EAGtB,IAAM,MAAmB,CACvB,IAAM,EAAO,EAAS,CAAI,EACtB,GAAM,EAAc,EAAK,KAAM,EAAK,MAAM,CAChD,EAKA,GAJA,EAAK,iBAAiB,eAAgB,EAAY,CAAE,KAAM,EAAK,CAAC,EAChE,EAAK,iBAAiB,QAAS,EAAY,CAAE,KAAM,EAAK,CAAC,EAGrD,EAAK,QAAQ,WAAa,YAAc,yBAA0B,OAAQ,CAC5E,IAAM,EAAW,IAAI,qBAClB,GAAY,CACX,IAAK,IAAM,KAAS,EAAS,CAC3B,GAAI,CAAC,EAAM,eAAgB,SAC3B,IAAM,EAAO,EAAS,EAAM,MAA2B,EACnD,GAAM,EAAc,EAAK,KAAM,EAAK,MAAM,EAC9C,EAAS,WAAW,CACtB,CACF,EACA,CAAE,WAAY,QAAS,UAAW,CAAE,CACtC,EACA,EAAS,QAAQ,CAAI,CACvB,CACF,EAEM,MAAqB,CACzB,IAAM,EAAQ,SAAS,iBAAoC,SAAS,EACpE,IAAK,IAAM,KAAQ,EAAO,EAAY,CAAI,CAC5C,EAEA,EAAa,EAIb,IAD6B,qBAAuB,EAAa,CACjE,CAAA,CAAiB,QAAQ,SAAS,KAAM,CAAE,UAAW,GAAM,QAAS,EAAK,CAAC,EAG1E,SAAS,iBAAiB,kBAAmB,CAAY,CAC3D,CAIA,SAAgB,GAA0B,CAInB,SAAS,cAC5B,qCAEE,CAAA,EAAc,aAAa,SAAS,IAAM,QAC5C,EAA0B,IAK5B,IAAM,EAAM,SAAS,eAAe,KAAK,EACrC,GAAK,EAAY,CAAG,EAExB,SAAS,iBAAiB,QAAS,KAAO,IAAU,CAElD,GADI,EAAE,aAAiB,aAAe,EAAY,CAAK,GACnD,EAAM,iBAAkB,OAC5B,IAAM,EAAQ,EAAM,OAAuB,QAAQ,GAAG,EACtD,GAAI,CAAC,GAAQ,CAAC,EAAe,CAAyB,EAAG,OAEzD,IAAM,EAAO,EAAK,aAAa,MAAM,EACrC,GAAI,CAAC,GAAQ,EAAK,WAAW,SAAS,GAAK,EAAK,WAAW,aAAa,EAAG,OAG3E,GAAI,EAAK,WAAW,GAAG,EAAG,CACxB,GAAI,EAAK,OAAS,EAAG,CACnB,IAAM,EAAS,SAAS,eAAe,EAAK,MAAM,CAAC,CAAC,EAChD,IACF,EAAM,eAAe,EACrB,EAAO,eAAe,CAAE,SAAU,SAAU,MAAO,OAAQ,CAAC,EAC5D,QAAQ,aAAa,KAAM,GAAI,CAAI,EAEvC,CACA,MACF,CAEA,EAAM,eAAe,EACrB,IAAM,EAAS,EAAK,QAAQ,GAAG,EAGzB,MAAM,EAFC,IAAW,GAAK,EAAO,EAAK,MAAM,EAAG,CAAM,EACzC,IAAW,GAAK,GAAK,EAAK,MAAM,CAAM,CAClB,GACjC,SAAS,OAAO,CAAI,CAExB,CAAC,EAED,OAAO,iBAAiB,WAAa,GAAU,CAG7C,EAFc,EAAM,OACE,GAAK,SAAS,SACZ,SAAS,OAAQ,EAAK,CAChD,CAAC,EAED,EAAkB,CACpB,CAQA,SAAgB,GAA2B,CACzC,EAAc,MAAM,EACpB,EAAqB,KACrB,EAA0B,GAC1B,EAAgB,IAClB"}