import { isInterceptionRouteAppPath } from "../server/future/helpers/interception-routes";
import { AppPathnameNormalizer } from "../server/future/normalizers/built/app/app-pathname-normalizer";
/**
 * This function will transform the appPaths in order to support catch-all routes and parallel routes.
 * It will traverse the appPaths, looking for catch-all routes and try to find parallel routes that could match
 * the catch-all. If it finds a match, it will add the catch-all to the parallel route's list of possible routes.
 *
 * @param appPaths  The appPaths to transform
 */ export function normalizeCatchAllRoutes(appPaths, normalizer = new AppPathnameNormalizer()) {
    const catchAllRoutes = [
        ...new Set(Object.values(appPaths).flat().filter(isCatchAllRoute)// Sorting is important because we want to match the most specific path.
        .sort((a, b)=>b.split("/").length - a.split("/").length))
    ];
    // interception routes should only be matched by a single entrypoint
    // we don't want to push a catch-all route to an interception route
    // because it would mean the interception would be handled by the wrong page component
    const filteredAppPaths = Object.keys(appPaths).filter((route)=>!isInterceptionRouteAppPath(route));
    for (const appPath of filteredAppPaths){
        for (const catchAllRoute of catchAllRoutes){
            const normalizedCatchAllRoute = normalizer.normalize(catchAllRoute);
            const normalizedCatchAllRouteBasePath = normalizedCatchAllRoute.slice(0, normalizedCatchAllRoute.search(catchAllRouteRegex));
            if (// check if the appPath could match the catch-all
            appPath.startsWith(normalizedCatchAllRouteBasePath) && // check if there's not already a slot value that could match the catch-all
            !appPaths[appPath].some((path)=>hasMatchedSlots(path, catchAllRoute))) {
                appPaths[appPath].push(catchAllRoute);
            }
        }
    }
}
function hasMatchedSlots(path1, path2) {
    const slots1 = path1.split("/").filter((segment)=>segment.startsWith("@"));
    const slots2 = path2.split("/").filter((segment)=>segment.startsWith("@"));
    if (slots1.length !== slots2.length) return false;
    for(let i = 0; i < slots1.length; i++){
        if (slots1[i] !== slots2[i]) return false;
    }
    return true;
}
const catchAllRouteRegex = /\[?\[\.\.\./;
function isCatchAllRoute(pathname) {
    return pathname.includes("[...") || pathname.includes("[[...");
}

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