import { RSC_HEADER, RSC_CONTENT_TYPE_HEADER, NEXT_ROUTER_STATE_TREE_HEADER, ACTION_HEADER } from '../../client/components/app-router-headers';
import { getAccessFallbackHTTPStatus, isHTTPAccessFallbackError } from '../../client/components/http-access-fallback/http-access-fallback';
import { getRedirectTypeFromError, getURLFromRedirectError } from '../../client/components/redirect';
import { isRedirectError } from '../../client/components/redirect-error';
import RenderResult from '../render-result';
import { FlightRenderResult } from './flight-render-result';
import { filterReqHeaders, actionsForbiddenHeaders } from '../lib/server-ipc/utils';
import { appendMutableCookies, getModifiedCookieValues } from '../web/spec-extension/adapters/request-cookies';
import { NEXT_CACHE_REVALIDATED_TAGS_HEADER, NEXT_CACHE_REVALIDATE_TAG_TOKEN_HEADER } from '../../lib/constants';
import { getServerActionRequestMetadata } from '../lib/server-action-request-meta';
import { isCsrfOriginAllowed } from './csrf-protection';
import { warn } from '../../build/output/log';
import { RequestCookies, ResponseCookies } from '../web/spec-extension/cookies';
import { HeadersAdapter } from '../web/spec-extension/adapters/headers';
import { fromNodeOutgoingHttpHeaders } from '../web/utils';
import { selectWorkerForForwarding } from './action-utils';
import { isNodeNextRequest, isWebNextRequest } from '../base-http/helpers';
import { RedirectStatusCode } from '../../client/components/redirect-status-code';
import { synchronizeMutableCookies } from '../async-storage/request-store';
import { workUnitAsyncStorage } from '../app-render/work-unit-async-storage.external';
function formDataFromSearchQueryString(query) {
    const searchParams = new URLSearchParams(query);
    const formData = new FormData();
    for (const [key, value] of searchParams){
        formData.append(key, value);
    }
    return formData;
}
function nodeHeadersToRecord(headers) {
    const record = {};
    for (const [key, value] of Object.entries(headers)){
        if (value !== undefined) {
            record[key] = Array.isArray(value) ? value.join(', ') : `${value}`;
        }
    }
    return record;
}
function getForwardedHeaders(req, res) {
    // Get request headers and cookies
    const requestHeaders = req.headers;
    const requestCookies = new RequestCookies(HeadersAdapter.from(requestHeaders));
    // Get response headers and cookies
    const responseHeaders = res.getHeaders();
    const responseCookies = new ResponseCookies(fromNodeOutgoingHttpHeaders(responseHeaders));
    // Merge request and response headers
    const mergedHeaders = filterReqHeaders({
        ...nodeHeadersToRecord(requestHeaders),
        ...nodeHeadersToRecord(responseHeaders)
    }, actionsForbiddenHeaders);
    // Merge cookies into requestCookies, so responseCookies always take precedence
    // and overwrite/delete those from requestCookies.
    responseCookies.getAll().forEach((cookie)=>{
        if (typeof cookie.value === 'undefined') {
            requestCookies.delete(cookie.name);
        } else {
            requestCookies.set(cookie);
        }
    });
    // Update the 'cookie' header with the merged cookies
    mergedHeaders['cookie'] = requestCookies.toString();
    // Remove headers that should not be forwarded
    delete mergedHeaders['transfer-encoding'];
    return new Headers(mergedHeaders);
}
async function addRevalidationHeader(res, { workStore, requestStore }) {
    var _workStore_incrementalCache, _workStore_revalidatedTags;
    await Promise.all([
        (_workStore_incrementalCache = workStore.incrementalCache) == null ? void 0 : _workStore_incrementalCache.revalidateTag(workStore.revalidatedTags || []),
        ...Object.values(workStore.pendingRevalidates || {}),
        ...workStore.pendingRevalidateWrites || []
    ]);
    // If a tag was revalidated, the client router needs to invalidate all the
    // client router cache as they may be stale. And if a path was revalidated, the
    // client needs to invalidate all subtrees below that path.
    // To keep the header size small, we use a tuple of
    // [[revalidatedPaths], isTagRevalidated ? 1 : 0, isCookieRevalidated ? 1 : 0]
    // instead of a JSON object.
    // TODO-APP: Currently the prefetch cache doesn't have subtree information,
    // so we need to invalidate the entire cache if a path was revalidated.
    // TODO-APP: Currently paths are treated as tags, so the second element of the tuple
    // is always empty.
    const isTagRevalidated = ((_workStore_revalidatedTags = workStore.revalidatedTags) == null ? void 0 : _workStore_revalidatedTags.length) ? 1 : 0;
    const isCookieRevalidated = getModifiedCookieValues(requestStore.mutableCookies).length ? 1 : 0;
    res.setHeader('x-action-revalidated', JSON.stringify([
        [],
        isTagRevalidated,
        isCookieRevalidated
    ]));
}
/**
 * Forwards a server action request to a separate worker. Used when the requested action is not available in the current worker.
 */ async function createForwardedActionResponse(req, res, host, workerPathname, basePath, workStore) {
    var _workStore_incrementalCache;
    if (!host) {
        throw Object.defineProperty(new Error('Invariant: Missing `host` header from a forwarded Server Actions request.'), "__NEXT_ERROR_CODE", {
            value: "E226",
            enumerable: false
        });
    }
    const forwardedHeaders = getForwardedHeaders(req, res);
    // indicate that this action request was forwarded from another worker
    // we use this to skip rendering the flight tree so that we don't update the UI
    // with the response from the forwarded worker
    forwardedHeaders.set('x-action-forwarded', '1');
    const proto = ((_workStore_incrementalCache = workStore.incrementalCache) == null ? void 0 : _workStore_incrementalCache.requestProtocol) || 'https';
    // For standalone or the serverful mode, use the internal origin directly
    // other than the host headers from the request.
    const origin = process.env.__NEXT_PRIVATE_ORIGIN || `${proto}://${host.value}`;
    const fetchUrl = new URL(`${origin}${basePath}${workerPathname}`);
    try {
        var _response_headers_get;
        let body;
        if (// The type check here ensures that `req` is correctly typed, and the
        // environment variable check provides dead code elimination.
        process.env.NEXT_RUNTIME === 'edge' && isWebNextRequest(req)) {
            if (!req.body) {
                throw Object.defineProperty(new Error('Invariant: missing request body.'), "__NEXT_ERROR_CODE", {
                    value: "E333",
                    enumerable: false
                });
            }
            body = req.body;
        } else if (// The type check here ensures that `req` is correctly typed, and the
        // environment variable check provides dead code elimination.
        process.env.NEXT_RUNTIME !== 'edge' && isNodeNextRequest(req)) {
            body = req.stream();
        } else {
            throw Object.defineProperty(new Error('Invariant: Unknown request type.'), "__NEXT_ERROR_CODE", {
                value: "E114",
                enumerable: false
            });
        }
        // Forward the request to the new worker
        const response = await fetch(fetchUrl, {
            method: 'POST',
            body,
            duplex: 'half',
            headers: forwardedHeaders,
            redirect: 'manual',
            next: {
                // @ts-ignore
                internal: 1
            }
        });
        if ((_response_headers_get = response.headers.get('content-type')) == null ? void 0 : _response_headers_get.startsWith(RSC_CONTENT_TYPE_HEADER)) {
            // copy the headers from the redirect response to the response we're sending
            for (const [key, value] of response.headers){
                if (!actionsForbiddenHeaders.includes(key)) {
                    res.setHeader(key, value);
                }
            }
            return new FlightRenderResult(response.body);
        } else {
            var // Since we aren't consuming the response body, we cancel it to avoid memory leaks
            _response_body;
            (_response_body = response.body) == null ? void 0 : _response_body.cancel();
        }
    } catch (err) {
        // we couldn't stream the forwarded response, so we'll just return an empty response
        console.error(`failed to forward action response`, err);
    }
    return RenderResult.fromStatic('{}');
}
/**
 * Returns the parsed redirect URL if we deem that it is hosted by us.
 *
 * We handle both relative and absolute redirect URLs.
 *
 * In case the redirect URL is not relative to the application we return `null`.
 */ function getAppRelativeRedirectUrl(basePath, host, redirectUrl) {
    if (redirectUrl.startsWith('/') || redirectUrl.startsWith('.')) {
        // Make sure we are appending the basePath to relative URLS
        return new URL(`${basePath}${redirectUrl}`, 'http://n');
    }
    const parsedRedirectUrl = new URL(redirectUrl);
    if ((host == null ? void 0 : host.value) !== parsedRedirectUrl.host) {
        return null;
    }
    // At this point the hosts are the same, just confirm we
    // are routing to a path underneath the `basePath`
    return parsedRedirectUrl.pathname.startsWith(basePath) ? parsedRedirectUrl : null;
}
async function createRedirectRenderResult(req, res, originalHost, redirectUrl, redirectType, basePath, workStore) {
    res.setHeader('x-action-redirect', `${redirectUrl};${redirectType}`);
    // If we're redirecting to another route of this Next.js application, we'll
    // try to stream the response from the other worker path. When that works,
    // we can save an extra roundtrip and avoid a full page reload.
    // When the redirect URL starts with a `/` or is to the same host, under the
    // `basePath` we treat it as an app-relative redirect;
    const appRelativeRedirectUrl = getAppRelativeRedirectUrl(basePath, originalHost, redirectUrl);
    if (appRelativeRedirectUrl) {
        var _workStore_incrementalCache;
        if (!originalHost) {
            throw Object.defineProperty(new Error('Invariant: Missing `host` header from a forwarded Server Actions request.'), "__NEXT_ERROR_CODE", {
                value: "E226",
                enumerable: false
            });
        }
        const forwardedHeaders = getForwardedHeaders(req, res);
        forwardedHeaders.set(RSC_HEADER, '1');
        const proto = ((_workStore_incrementalCache = workStore.incrementalCache) == null ? void 0 : _workStore_incrementalCache.requestProtocol) || 'https';
        // For standalone or the serverful mode, use the internal origin directly
        // other than the host headers from the request.
        const origin = process.env.__NEXT_PRIVATE_ORIGIN || `${proto}://${originalHost.value}`;
        const fetchUrl = new URL(`${origin}${appRelativeRedirectUrl.pathname}${appRelativeRedirectUrl.search}`);
        if (workStore.revalidatedTags) {
            var _workStore_incrementalCache_prerenderManifest_preview, _workStore_incrementalCache_prerenderManifest, _workStore_incrementalCache1;
            forwardedHeaders.set(NEXT_CACHE_REVALIDATED_TAGS_HEADER, workStore.revalidatedTags.join(','));
            forwardedHeaders.set(NEXT_CACHE_REVALIDATE_TAG_TOKEN_HEADER, ((_workStore_incrementalCache1 = workStore.incrementalCache) == null ? void 0 : (_workStore_incrementalCache_prerenderManifest = _workStore_incrementalCache1.prerenderManifest) == null ? void 0 : (_workStore_incrementalCache_prerenderManifest_preview = _workStore_incrementalCache_prerenderManifest.preview) == null ? void 0 : _workStore_incrementalCache_prerenderManifest_preview.previewModeId) || '');
        }
        // Ensures that when the path was revalidated we don't return a partial response on redirects
        forwardedHeaders.delete(NEXT_ROUTER_STATE_TREE_HEADER);
        // When an action follows a redirect, it's no longer handling an action: it's just a normal RSC request
        // to the requested URL. We should remove the `next-action` header so that it's not treated as an action
        forwardedHeaders.delete(ACTION_HEADER);
        try {
            var _response_headers_get;
            const response = await fetch(fetchUrl, {
                method: 'GET',
                headers: forwardedHeaders,
                next: {
                    // @ts-ignore
                    internal: 1
                }
            });
            if ((_response_headers_get = response.headers.get('content-type')) == null ? void 0 : _response_headers_get.startsWith(RSC_CONTENT_TYPE_HEADER)) {
                // copy the headers from the redirect response to the response we're sending
                for (const [key, value] of response.headers){
                    if (!actionsForbiddenHeaders.includes(key)) {
                        res.setHeader(key, value);
                    }
                }
                return new FlightRenderResult(response.body);
            } else {
                var // Since we aren't consuming the response body, we cancel it to avoid memory leaks
                _response_body;
                (_response_body = response.body) == null ? void 0 : _response_body.cancel();
            }
        } catch (err) {
            // we couldn't stream the redirect response, so we'll just do a normal redirect
            console.error(`failed to get redirect response`, err);
        }
    }
    return RenderResult.fromStatic('{}');
}
;
/**
 * Ensures the value of the header can't create long logs.
 */ function limitUntrustedHeaderValueForLogs(value) {
    return value.length > 100 ? value.slice(0, 100) + '...' : value;
}
export async function handleAction({ req, res, ComponentMod, serverModuleMap, generateFlight, workStore, requestStore, serverActions, ctx }) {
    const contentType = req.headers['content-type'];
    const { serverActionsManifest, page } = ctx.renderOpts;
    const { actionId, isURLEncodedAction, isMultipartAction, isFetchAction, isServerAction } = getServerActionRequestMetadata(req);
    // If it's not a Server Action, skip handling.
    if (!isServerAction) {
        return;
    }
    if (workStore.isStaticGeneration) {
        throw Object.defineProperty(new Error("Invariant: server actions can't be handled during static rendering"), "__NEXT_ERROR_CODE", {
            value: "E359",
            enumerable: false
        });
    }
    let temporaryReferences;
    const finalizeAndGenerateFlight = (...args)=>{
        // When we switch to the render phase, cookies() will return
        // `workUnitStore.cookies` instead of `workUnitStore.userspaceMutableCookies`.
        // We want the render to see any cookie writes that we performed during the action,
        // so we need to update the immutable cookies to reflect the changes.
        synchronizeMutableCookies(requestStore);
        requestStore.phase = 'render';
        return generateFlight(...args);
    };
    requestStore.phase = 'action';
    // When running actions the default is no-store, you can still `cache: 'force-cache'`
    workStore.fetchCache = 'default-no-store';
    const originDomain = typeof req.headers['origin'] === 'string' ? new URL(req.headers['origin']).host : undefined;
    const forwardedHostHeader = req.headers['x-forwarded-host'];
    const hostHeader = req.headers['host'];
    const host = forwardedHostHeader ? {
        type: "x-forwarded-host",
        value: forwardedHostHeader
    } : hostHeader ? {
        type: "host",
        value: hostHeader
    } : undefined;
    let warning = undefined;
    function warnBadServerActionRequest() {
        if (warning) {
            warn(warning);
        }
    }
    // This is to prevent CSRF attacks. If `x-forwarded-host` is set, we need to
    // ensure that the request is coming from the same host.
    if (!originDomain) {
        // This might be an old browser that doesn't send `host` header. We ignore
        // this case.
        warning = 'Missing `origin` header from a forwarded Server Actions request.';
    } else if (!host || originDomain !== host.value) {
        // If the customer sets a list of allowed origins, we'll allow the request.
        // These are considered safe but might be different from forwarded host set
        // by the infra (i.e. reverse proxies).
        if (isCsrfOriginAllowed(originDomain, serverActions == null ? void 0 : serverActions.allowedOrigins)) {
        // Ignore it
        } else {
            if (host) {
                // This seems to be an CSRF attack. We should not proceed the action.
                console.error(`\`${host.type}\` header with value \`${limitUntrustedHeaderValueForLogs(host.value)}\` does not match \`origin\` header with value \`${limitUntrustedHeaderValueForLogs(originDomain)}\` from a forwarded Server Actions request. Aborting the action.`);
            } else {
                // This is an attack. We should not proceed the action.
                console.error(`\`x-forwarded-host\` or \`host\` headers are not provided. One of these is needed to compare the \`origin\` header from a forwarded Server Actions request. Aborting the action.`);
            }
            const error = Object.defineProperty(new Error('Invalid Server Actions request.'), "__NEXT_ERROR_CODE", {
                value: "E80",
                enumerable: false
            });
            if (isFetchAction) {
                var _workStore_incrementalCache;
                res.statusCode = 500;
                await Promise.all([
                    (_workStore_incrementalCache = workStore.incrementalCache) == null ? void 0 : _workStore_incrementalCache.revalidateTag(workStore.revalidatedTags || []),
                    ...Object.values(workStore.pendingRevalidates || {}),
                    ...workStore.pendingRevalidateWrites || []
                ]);
                const promise = Promise.reject(error);
                try {
                    // we need to await the promise to trigger the rejection early
                    // so that it's already handled by the time we call
                    // the RSC runtime. Otherwise, it will throw an unhandled
                    // promise rejection error in the renderer.
                    await promise;
                } catch  {
                // swallow error, it's gonna be handled on the client
                }
                return {
                    type: 'done',
                    result: await finalizeAndGenerateFlight(req, ctx, requestStore, {
                        actionResult: promise,
                        // if the page was not revalidated, we can skip the rendering the flight tree
                        skipFlight: !workStore.pathWasRevalidated,
                        temporaryReferences
                    })
                };
            }
            throw error;
        }
    }
    // ensure we avoid caching server actions unexpectedly
    res.setHeader('Cache-Control', 'no-cache, no-store, max-age=0, must-revalidate');
    let boundActionArguments = [];
    const { actionAsyncStorage } = ComponentMod;
    let actionResult;
    let formState;
    let actionModId;
    const actionWasForwarded = Boolean(req.headers['x-action-forwarded']);
    if (actionId) {
        const forwardedWorker = selectWorkerForForwarding(actionId, page, serverActionsManifest);
        // If forwardedWorker is truthy, it means there isn't a worker for the action
        // in the current handler, so we forward the request to a worker that has the action.
        if (forwardedWorker) {
            return {
                type: 'done',
                result: await createForwardedActionResponse(req, res, host, forwardedWorker, ctx.renderOpts.basePath, workStore)
            };
        }
    }
    try {
        await actionAsyncStorage.run({
            isAction: true
        }, async ()=>{
            if (// The type check here ensures that `req` is correctly typed, and the
            // environment variable check provides dead code elimination.
            process.env.NEXT_RUNTIME === 'edge' && isWebNextRequest(req)) {
                if (!req.body) {
                    throw Object.defineProperty(new Error('invariant: Missing request body.'), "__NEXT_ERROR_CODE", {
                        value: "E364",
                        enumerable: false
                    });
                }
                // TODO: add body limit
                // Use react-server-dom-webpack/server.edge
                const { createTemporaryReferenceSet, decodeReply, decodeAction, decodeFormState } = ComponentMod;
                temporaryReferences = createTemporaryReferenceSet();
                if (isMultipartAction) {
                    // TODO-APP: Add streaming support
                    const formData = await req.request.formData();
                    if (isFetchAction) {
                        boundActionArguments = await decodeReply(formData, serverModuleMap, {
                            temporaryReferences
                        });
                    } else {
                        const action = await decodeAction(formData, serverModuleMap);
                        if (typeof action === 'function') {
                            // Only warn if it's a server action, otherwise skip for other post requests
                            warnBadServerActionRequest();
                            const actionReturnedState = await workUnitAsyncStorage.run(requestStore, action);
                            formState = await decodeFormState(actionReturnedState, formData, serverModuleMap);
                            requestStore.phase = 'render';
                        }
                        // Skip the fetch path
                        return;
                    }
                } else {
                    try {
                        actionModId = getActionModIdOrError(actionId, serverModuleMap);
                    } catch (err) {
                        if (actionId !== null) {
                            console.error(err);
                        }
                        return {
                            type: 'not-found'
                        };
                    }
                    let actionData = '';
                    const reader = req.body.getReader();
                    while(true){
                        const { done, value } = await reader.read();
                        if (done) {
                            break;
                        }
                        actionData += new TextDecoder().decode(value);
                    }
                    if (isURLEncodedAction) {
                        const formData = formDataFromSearchQueryString(actionData);
                        boundActionArguments = await decodeReply(formData, serverModuleMap, {
                            temporaryReferences
                        });
                    } else {
                        boundActionArguments = await decodeReply(actionData, serverModuleMap, {
                            temporaryReferences
                        });
                    }
                }
            } else if (// The type check here ensures that `req` is correctly typed, and the
            // environment variable check provides dead code elimination.
            process.env.NEXT_RUNTIME !== 'edge' && isNodeNextRequest(req)) {
                // Use react-server-dom-webpack/server.node which supports streaming
                const { createTemporaryReferenceSet, decodeReply, decodeReplyFromBusboy, decodeAction, decodeFormState } = require(`./react-server.node`);
                temporaryReferences = createTemporaryReferenceSet();
                const { Transform } = require('node:stream');
                const defaultBodySizeLimit = '1 MB';
                const bodySizeLimit = (serverActions == null ? void 0 : serverActions.bodySizeLimit) ?? defaultBodySizeLimit;
                const bodySizeLimitBytes = bodySizeLimit !== defaultBodySizeLimit ? require('next/dist/compiled/bytes').parse(bodySizeLimit) : 1024 * 1024 // 1 MB
                ;
                let size = 0;
                const body = req.body.pipe(new Transform({
                    transform (chunk, encoding, callback) {
                        size += Buffer.byteLength(chunk, encoding);
                        if (size > bodySizeLimitBytes) {
                            const { ApiError } = require('../api-utils');
                            callback(Object.defineProperty(new ApiError(413, `Body exceeded ${bodySizeLimit} limit.
                To configure the body size limit for Server Actions, see: https://nextjs.org/docs/app/api-reference/next-config-js/serverActions#bodysizelimit`), "__NEXT_ERROR_CODE", {
                                value: "E394",
                                enumerable: false
                            }));
                            return;
                        }
                        callback(null, chunk);
                    }
                }));
                if (isMultipartAction) {
                    if (isFetchAction) {
                        const busboy = require('busboy')({
                            defParamCharset: 'utf8',
                            headers: req.headers,
                            limits: {
                                fieldSize: bodySizeLimitBytes
                            }
                        });
                        body.pipe(busboy);
                        boundActionArguments = await decodeReplyFromBusboy(busboy, serverModuleMap, {
                            temporaryReferences
                        });
                    } else {
                        // React doesn't yet publish a busboy version of decodeAction
                        // so we polyfill the parsing of FormData.
                        const fakeRequest = new Request('http://localhost', {
                            method: 'POST',
                            // @ts-expect-error
                            headers: {
                                'Content-Type': contentType
                            },
                            body: new ReadableStream({
                                start: (controller)=>{
                                    body.on('data', (chunk)=>{
                                        controller.enqueue(new Uint8Array(chunk));
                                    });
                                    body.on('end', ()=>{
                                        controller.close();
                                    });
                                    body.on('error', (err)=>{
                                        controller.error(err);
                                    });
                                }
                            }),
                            duplex: 'half'
                        });
                        const formData = await fakeRequest.formData();
                        const action = await decodeAction(formData, serverModuleMap);
                        if (typeof action === 'function') {
                            // Only warn if it's a server action, otherwise skip for other post requests
                            warnBadServerActionRequest();
                            const actionReturnedState = await workUnitAsyncStorage.run(requestStore, action);
                            formState = await decodeFormState(actionReturnedState, formData, serverModuleMap);
                            requestStore.phase = 'render';
                        }
                        // Skip the fetch path
                        return;
                    }
                } else {
                    try {
                        actionModId = getActionModIdOrError(actionId, serverModuleMap);
                    } catch (err) {
                        if (actionId !== null) {
                            console.error(err);
                        }
                        return {
                            type: 'not-found'
                        };
                    }
                    const chunks = [];
                    for await (const chunk of req.body){
                        chunks.push(Buffer.from(chunk));
                    }
                    const actionData = Buffer.concat(chunks).toString('utf-8');
                    if (isURLEncodedAction) {
                        const formData = formDataFromSearchQueryString(actionData);
                        boundActionArguments = await decodeReply(formData, serverModuleMap, {
                            temporaryReferences
                        });
                    } else {
                        boundActionArguments = await decodeReply(actionData, serverModuleMap, {
                            temporaryReferences
                        });
                    }
                }
            } else {
                throw Object.defineProperty(new Error('Invariant: Unknown request type.'), "__NEXT_ERROR_CODE", {
                    value: "E114",
                    enumerable: false
                });
            }
            // actions.js
            // app/page.js
            //   action worker1
            //     appRender1
            // app/foo/page.js
            //   action worker2
            //     appRender
            // / -> fire action -> POST / -> appRender1 -> modId for the action file
            // /foo -> fire action -> POST /foo -> appRender2 -> modId for the action file
            try {
                actionModId = actionModId ?? getActionModIdOrError(actionId, serverModuleMap);
            } catch (err) {
                if (actionId !== null) {
                    console.error(err);
                }
                return {
                    type: 'not-found'
                };
            }
            const actionHandler = (await ComponentMod.__next_app__.require(actionModId))[// `actionId` must exist if we got here, as otherwise we would have thrown an error above
            actionId];
            const returnVal = await workUnitAsyncStorage.run(requestStore, ()=>actionHandler.apply(null, boundActionArguments));
            // For form actions, we need to continue rendering the page.
            if (isFetchAction) {
                await addRevalidationHeader(res, {
                    workStore,
                    requestStore
                });
                actionResult = await finalizeAndGenerateFlight(req, ctx, requestStore, {
                    actionResult: Promise.resolve(returnVal),
                    // if the page was not revalidated, or if the action was forwarded from another worker, we can skip the rendering the flight tree
                    skipFlight: !workStore.pathWasRevalidated || actionWasForwarded,
                    temporaryReferences
                });
            }
        });
        return {
            type: 'done',
            result: actionResult,
            formState
        };
    } catch (err) {
        if (isRedirectError(err)) {
            const redirectUrl = getURLFromRedirectError(err);
            const redirectType = getRedirectTypeFromError(err);
            await addRevalidationHeader(res, {
                workStore,
                requestStore
            });
            // if it's a fetch action, we'll set the status code for logging/debugging purposes
            // but we won't set a Location header, as the redirect will be handled by the client router
            res.statusCode = RedirectStatusCode.SeeOther;
            if (isFetchAction) {
                return {
                    type: 'done',
                    result: await createRedirectRenderResult(req, res, host, redirectUrl, redirectType, ctx.renderOpts.basePath, workStore)
                };
            }
            // If there were mutable cookies set, we need to set them on the
            // response.
            const headers = new Headers();
            if (appendMutableCookies(headers, requestStore.mutableCookies)) {
                res.setHeader('set-cookie', Array.from(headers.values()));
            }
            res.setHeader('Location', redirectUrl);
            return {
                type: 'done',
                result: RenderResult.fromStatic('')
            };
        } else if (isHTTPAccessFallbackError(err)) {
            res.statusCode = getAccessFallbackHTTPStatus(err);
            await addRevalidationHeader(res, {
                workStore,
                requestStore
            });
            if (isFetchAction) {
                const promise = Promise.reject(err);
                try {
                    // we need to await the promise to trigger the rejection early
                    // so that it's already handled by the time we call
                    // the RSC runtime. Otherwise, it will throw an unhandled
                    // promise rejection error in the renderer.
                    await promise;
                } catch  {
                // swallow error, it's gonna be handled on the client
                }
                return {
                    type: 'done',
                    result: await finalizeAndGenerateFlight(req, ctx, requestStore, {
                        skipFlight: false,
                        actionResult: promise,
                        temporaryReferences
                    })
                };
            }
            return {
                type: 'not-found'
            };
        }
        if (isFetchAction) {
            var _workStore_incrementalCache1;
            res.statusCode = 500;
            await Promise.all([
                (_workStore_incrementalCache1 = workStore.incrementalCache) == null ? void 0 : _workStore_incrementalCache1.revalidateTag(workStore.revalidatedTags || []),
                ...Object.values(workStore.pendingRevalidates || {}),
                ...workStore.pendingRevalidateWrites || []
            ]);
            const promise = Promise.reject(err);
            try {
                // we need to await the promise to trigger the rejection early
                // so that it's already handled by the time we call
                // the RSC runtime. Otherwise, it will throw an unhandled
                // promise rejection error in the renderer.
                await promise;
            } catch  {
            // swallow error, it's gonna be handled on the client
            }
            requestStore.phase = 'render';
            return {
                type: 'done',
                result: await generateFlight(req, ctx, requestStore, {
                    actionResult: promise,
                    // if the page was not revalidated, or if the action was forwarded from another worker, we can skip the rendering the flight tree
                    skipFlight: !workStore.pathWasRevalidated || actionWasForwarded,
                    temporaryReferences
                })
            };
        }
        throw err;
    }
}
/**
 * Attempts to find the module ID for the action from the module map. When this fails, it could be a deployment skew where
 * the action came from a different deployment. It could also simply be an invalid POST request that is not a server action.
 * In either case, we'll throw an error to be handled by the caller.
 */ function getActionModIdOrError(actionId, serverModuleMap) {
    try {
        var _serverModuleMap_actionId;
        // if we're missing the action ID header, we can't do any further processing
        if (!actionId) {
            throw Object.defineProperty(new Error("Invariant: Missing 'next-action' header."), "__NEXT_ERROR_CODE", {
                value: "E416",
                enumerable: false
            });
        }
        const actionModId = serverModuleMap == null ? void 0 : (_serverModuleMap_actionId = serverModuleMap[actionId]) == null ? void 0 : _serverModuleMap_actionId.id;
        if (!actionModId) {
            throw Object.defineProperty(new Error("Invariant: Couldn't find action module ID from module map."), "__NEXT_ERROR_CODE", {
                value: "E32",
                enumerable: false
            });
        }
        return actionModId;
    } catch (err) {
        throw Object.defineProperty(new Error(`Failed to find Server Action "${actionId}". This request might be from an older or newer deployment. ${err instanceof Error ? `Original error: ${err.message}` : ''}`), "__NEXT_ERROR_CODE", {
            value: "E264",
            enumerable: false
        });
    }
}

//# sourceMappingURL=action-handler.js.map