import { callServer } from '../../../app-call-server';
import { findSourceMapURL } from '../../../app-find-source-map-url';
import { ACTION_HEADER, NEXT_ACTION_NOT_FOUND_HEADER, NEXT_IS_PRERENDER_HEADER, NEXT_HTML_REQUEST_ID_HEADER, NEXT_ROUTER_STATE_TREE_HEADER, NEXT_URL, RSC_CONTENT_TYPE_HEADER, NEXT_REQUEST_ID_HEADER } from '../../app-router-headers';
import { UnrecognizedActionError } from '../../unrecognized-action-error';
// TODO: Explicitly import from client.browser
// eslint-disable-next-line import/no-extraneous-dependencies
import { createFromFetch as createFromFetchBrowser, createTemporaryReferenceSet, encodeReply } from 'react-server-dom-webpack/client';
import { assignLocation } from '../../../assign-location';
import { createHrefFromUrl } from '../create-href-from-url';
import { handleExternalUrl } from './navigate-reducer';
import { applyRouterStatePatchToTree } from '../apply-router-state-patch-to-tree';
import { isNavigatingToNewRootLayout } from '../is-navigating-to-new-root-layout';
import { handleMutable } from '../handle-mutable';
import { fillLazyItemsTillLeafWithHead } from '../fill-lazy-items-till-leaf-with-head';
import { createEmptyCacheNode } from '../../app-router';
import { hasInterceptionRouteInCurrentTree } from './has-interception-route-in-current-tree';
import { handleSegmentMismatch } from '../handle-segment-mismatch';
import { refreshInactiveParallelSegments } from '../refetch-inactive-parallel-segments';
import { normalizeFlightData, prepareFlightRouterStateForRequest } from '../../../flight-data-helpers';
import { getRedirectError } from '../../redirect';
import { RedirectType } from '../../redirect-error';
import { removeBasePath } from '../../../remove-base-path';
import { hasBasePath } from '../../../has-base-path';
import { extractInfoFromServerReferenceId, omitUnusedArgs } from '../../../../shared/lib/server-reference-info';
import { revalidateEntireCache } from '../../segment-cache';
const createFromFetch = createFromFetchBrowser;
let createDebugChannel;
if (process.env.NODE_ENV !== 'production' && process.env.__NEXT_REACT_DEBUG_CHANNEL) {
    createDebugChannel = require('../../../dev/debug-channel').createDebugChannel;
}
async function fetchServerAction(state, nextUrl, { actionId, actionArgs }) {
    const temporaryReferences = createTemporaryReferenceSet();
    const info = extractInfoFromServerReferenceId(actionId);
    // TODO: Currently, we're only omitting unused args for the experimental "use
    // cache" functions. Once the server reference info byte feature is stable, we
    // should apply this to server actions as well.
    const usedArgs = info.type === 'use-cache' ? omitUnusedArgs(actionArgs, info) : actionArgs;
    const body = await encodeReply(usedArgs, {
        temporaryReferences
    });
    const headers = {
        Accept: RSC_CONTENT_TYPE_HEADER,
        [ACTION_HEADER]: actionId,
        [NEXT_ROUTER_STATE_TREE_HEADER]: prepareFlightRouterStateForRequest(state.tree)
    };
    if (process.env.NEXT_DEPLOYMENT_ID) {
        headers['x-deployment-id'] = process.env.NEXT_DEPLOYMENT_ID;
    }
    if (nextUrl) {
        headers[NEXT_URL] = nextUrl;
    }
    if (process.env.NODE_ENV !== 'production') {
        if (self.__next_r) {
            headers[NEXT_HTML_REQUEST_ID_HEADER] = self.__next_r;
        }
        // Create a new request ID for the server action request. The server uses
        // this to tag debug information sent via WebSocket to the client, which
        // then routes those chunks to the debug channel associated with this ID.
        headers[NEXT_REQUEST_ID_HEADER] = crypto.getRandomValues(new Uint32Array(1))[0].toString(16);
    }
    const res = await fetch(state.canonicalUrl, {
        method: 'POST',
        headers,
        body
    });
    // Handle server actions that the server didn't recognize.
    const unrecognizedActionHeader = res.headers.get(NEXT_ACTION_NOT_FOUND_HEADER);
    if (unrecognizedActionHeader === '1') {
        throw Object.defineProperty(new UnrecognizedActionError(`Server Action "${actionId}" was not found on the server. \nRead more: https://nextjs.org/docs/messages/failed-to-find-server-action`), "__NEXT_ERROR_CODE", {
            value: "E715",
            enumerable: false,
            configurable: true
        });
    }
    const redirectHeader = res.headers.get('x-action-redirect');
    const [location, _redirectType] = redirectHeader?.split(';') || [];
    let redirectType;
    switch(_redirectType){
        case 'push':
            redirectType = RedirectType.push;
            break;
        case 'replace':
            redirectType = RedirectType.replace;
            break;
        default:
            redirectType = undefined;
    }
    const isPrerender = !!res.headers.get(NEXT_IS_PRERENDER_HEADER);
    let revalidatedParts;
    try {
        const revalidatedHeader = JSON.parse(res.headers.get('x-action-revalidated') || '[[],0,0]');
        revalidatedParts = {
            paths: revalidatedHeader[0] || [],
            tag: !!revalidatedHeader[1],
            cookie: revalidatedHeader[2]
        };
    } catch (e) {
        revalidatedParts = NO_REVALIDATED_PARTS;
    }
    const redirectLocation = location ? assignLocation(location, new URL(state.canonicalUrl, window.location.href)) : undefined;
    const contentType = res.headers.get('content-type');
    const isRscResponse = !!(contentType && contentType.startsWith(RSC_CONTENT_TYPE_HEADER));
    // Handle invalid server action responses.
    // A valid response must have `content-type: text/x-component`, unless it's an external redirect.
    // (external redirects have an 'x-action-redirect' header, but the body is an empty 'text/plain')
    if (!isRscResponse && !redirectLocation) {
        // The server can respond with a text/plain error message, but we'll fallback to something generic
        // if there isn't one.
        const message = res.status >= 400 && contentType === 'text/plain' ? await res.text() : 'An unexpected response was received from the server.';
        throw Object.defineProperty(new Error(message), "__NEXT_ERROR_CODE", {
            value: "E394",
            enumerable: false,
            configurable: true
        });
    }
    let actionResult;
    let actionFlightData;
    if (isRscResponse) {
        const response = await createFromFetch(Promise.resolve(res), {
            callServer,
            findSourceMapURL,
            temporaryReferences,
            debugChannel: createDebugChannel && createDebugChannel(headers)
        });
        // An internal redirect can send an RSC response, but does not have a useful `actionResult`.
        actionResult = redirectLocation ? undefined : response.a;
        actionFlightData = normalizeFlightData(response.f);
    } else {
        // An external redirect doesn't contain RSC data.
        actionResult = undefined;
        actionFlightData = undefined;
    }
    return {
        actionResult,
        actionFlightData,
        redirectLocation,
        redirectType,
        revalidatedParts,
        isPrerender
    };
}
const NO_REVALIDATED_PARTS = {
    paths: [],
    tag: false,
    cookie: false
};
/*
 * This reducer is responsible for calling the server action and processing any side-effects from the server action.
 * It does not mutate the state by itself but rather delegates to other reducers to do the actual mutation.
 */ export function serverActionReducer(state, action) {
    const { resolve, reject } = action;
    const mutable = {};
    let currentTree = state.tree;
    mutable.preserveCustomHistoryState = false;
    // only pass along the `nextUrl` param (used for interception routes) if the current route was intercepted.
    // If the route has been intercepted, the action should be as well.
    // Otherwise the server action might be intercepted with the wrong action id
    // (ie, one that corresponds with the intercepted route)
    const nextUrl = // We always send the last next-url, not the current when
    // performing a dynamic request. This is because we update
    // the next-url after a navigation, but we want the same
    // interception route to be matched that used the last
    // next-url.
    (state.previousNextUrl || state.nextUrl) && hasInterceptionRouteInCurrentTree(state.tree) ? state.previousNextUrl || state.nextUrl : null;
    const navigatedAt = Date.now();
    return fetchServerAction(state, nextUrl, action).then(async ({ actionResult, actionFlightData: flightData, redirectLocation, redirectType, revalidatedParts })=>{
        let redirectHref;
        // honor the redirect type instead of defaulting to push in case of server actions.
        if (redirectLocation) {
            if (redirectType === RedirectType.replace) {
                state.pushRef.pendingPush = false;
                mutable.pendingPush = false;
            } else {
                state.pushRef.pendingPush = true;
                mutable.pendingPush = true;
            }
            redirectHref = createHrefFromUrl(redirectLocation, false);
            mutable.canonicalUrl = redirectHref;
        }
        if (!flightData) {
            resolve(actionResult);
            // If there is a redirect but no flight data we need to do a mpaNavigation.
            if (redirectLocation) {
                return handleExternalUrl(state, mutable, redirectLocation.href, state.pushRef.pendingPush);
            }
            return state;
        }
        if (typeof flightData === 'string') {
            // Handle case when navigating to page in `pages` from `app`
            resolve(actionResult);
            return handleExternalUrl(state, mutable, flightData, state.pushRef.pendingPush);
        }
        const actionRevalidated = revalidatedParts.paths.length > 0 || revalidatedParts.tag || revalidatedParts.cookie;
        // Store whether this action triggered any revalidation
        // The action queue will use this information to potentially
        // trigger a refresh action if the action was discarded
        // (ie, due to a navigation, before the action completed)
        if (actionRevalidated) {
            action.didRevalidate = true;
        }
        for (const normalizedFlightData of flightData){
            const { tree: treePatch, seedData: cacheNodeSeedData, head, isRootRender } = normalizedFlightData;
            if (!isRootRender) {
                // TODO-APP: handle this case better
                console.log('SERVER ACTION APPLY FAILED');
                resolve(actionResult);
                return state;
            }
            // Given the path can only have two items the items are only the router state and rsc for the root.
            const newTree = applyRouterStatePatchToTree(// TODO-APP: remove ''
            [
                ''
            ], currentTree, treePatch, redirectHref ? redirectHref : state.canonicalUrl);
            if (newTree === null) {
                resolve(actionResult);
                return handleSegmentMismatch(state, action, treePatch);
            }
            if (isNavigatingToNewRootLayout(currentTree, newTree)) {
                resolve(actionResult);
                return handleExternalUrl(state, mutable, redirectHref || state.canonicalUrl, state.pushRef.pendingPush);
            }
            // The server sent back RSC data for the server action, so we need to apply it to the cache.
            if (cacheNodeSeedData !== null) {
                const rsc = cacheNodeSeedData[0];
                const cache = createEmptyCacheNode();
                cache.rsc = rsc;
                cache.prefetchRsc = null;
                cache.loading = cacheNodeSeedData[2];
                fillLazyItemsTillLeafWithHead(navigatedAt, cache, // Existing cache is not passed in as server actions have to invalidate the entire cache.
                undefined, treePatch, cacheNodeSeedData, head);
                mutable.cache = cache;
                revalidateEntireCache(state.nextUrl, newTree);
                if (actionRevalidated) {
                    await refreshInactiveParallelSegments({
                        navigatedAt,
                        state,
                        updatedTree: newTree,
                        updatedCache: cache,
                        includeNextUrl: Boolean(nextUrl),
                        canonicalUrl: mutable.canonicalUrl || state.canonicalUrl
                    });
                }
            }
            mutable.patchedTree = newTree;
            currentTree = newTree;
        }
        if (redirectLocation && redirectHref) {
            // If the action triggered a redirect, the action promise will be rejected with
            // a redirect so that it's handled by RedirectBoundary as we won't have a valid
            // action result to resolve the promise with. This will effectively reset the state of
            // the component that called the action as the error boundary will remount the tree.
            // The status code doesn't matter here as the action handler will have already sent
            // a response with the correct status code.
            reject(getRedirectError(hasBasePath(redirectHref) ? removeBasePath(redirectHref) : redirectHref, redirectType || RedirectType.push));
            // TODO: Investigate why this is needed with Activity.
            if (process.env.__NEXT_CACHE_COMPONENTS) {
                return state;
            }
        } else {
            resolve(actionResult);
        }
        return handleMutable(state, mutable);
    }, (e)=>{
        // When the server action is rejected we don't update the state and instead call the reject handler of the promise.
        reject(e);
        return state;
    });
}

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