microsite/dist/utils/build.js

var __rest = (this && this.__rest) || function (s, e) {
    var t = {};
    for (var p in s) if (Object.prototype.hasOwnProperty.call(s, p) && e.indexOf(p) < 0)
        t[p] = s[p];
    if (s != null && typeof Object.getOwnPropertySymbols === "function")
        for (var i = 0, p = Object.getOwnPropertySymbols(s); i < p.length; i++) {
            if (e.indexOf(p[i]) < 0 && Object.prototype.propertyIsEnumerable.call(s, p[i]))
                t[p[i]] = s[p[i]];
        }
    return t;
};
import crypto from "crypto";
import { resolve, join } from "path";
import { writeFile, copyFile, fileExists } from "./fs.js";
import module from "module";
const { createRequire } = module;
const require = createRequire(import.meta.url);
import { Document as InternalDocument, __HeadContext, __InternalDocContext } from "../document.js";
import { h } from "preact";
import { renderToString } from "preact-render-to-string";
import { generateStaticPropsContext } from "./router.js";
import fetch from 'node-fetch';
// import { createPrefetch, getCacheEntry, getPreviousKey } from "./prefetch.js";
export const CACHE_DIR = ".microsite/cache";
export const STAGING_DIR = ".microsite/staging";
export const SSR_DIR = ".microsite/ssr";
export const OUT_DIR_NO_BASE = "./dist";
export let OUT_DIR = "./dist";
export const setBasePath = (p) => OUT_DIR = p === '/' ? OUT_DIR : join(OUT_DIR, ...p.replace(/^\//, '').replace(/\/$/, '').split('/'));
export const getFileNameFromPath = (path) => {
    return path
        .split(STAGING_DIR)[1]
        .replace(/^\/src\//, "")
        .replace(/([\[\]])/gi, "_")
        .replace(/\..*$/, "");
};
const PROXY_IMPORT_REGEX = /^.*\.(\w+)\.proxy\.js$/g;
export const proxyImportTransformer = {
    filter: (source) => PROXY_IMPORT_REGEX.test(source),
    transform: (source) => source.replace(PROXY_IMPORT_REGEX, (fullMatch, originalExt) => {
        if (originalExt === "json") {
            return fullMatch;
        }
        return fullMatch.replace(".proxy.js", "");
    }),
};
const PREACT_IMPORT_REGEX = /^.*_snowpack\/pkg\/preact([\/\w]+)?\.js$/gm;
export const preactImportTransformer = {
    filter: (source) => PREACT_IMPORT_REGEX.test(source),
    transform: (source) => source.replace(PREACT_IMPORT_REGEX, (_match, subpath) => {
        return subpath ? `preact${subpath}` : `preact`;
    }),
};
const PREACT_VERSION = require("preact/package.json").version;
const PREACT_CDN_LOOKUP = {
    preact: `https://cdn.skypack.dev/preact@${PREACT_VERSION}`,
    "preact/hooks": `https://cdn.skypack.dev/preact@${PREACT_VERSION}/hooks`,
};
let PREACT_CDN_SOURCES = null;
const resolvePreactCdnSources = async () => {
    if (PREACT_CDN_SOURCES)
        return;
    const mdls = Object.keys(PREACT_CDN_LOOKUP);
    const pinnedUrls = await Promise.all(mdls.map(mdl => {
        const lookupUrl = PREACT_CDN_LOOKUP[mdl];
        return fetch(lookupUrl).then(res => `https://cdn.skypack.dev${res.headers.get('x-pinned-url')}`);
    }));
    PREACT_CDN_SOURCES = mdls.reduce((acc, curr, i) => {
        return Object.assign(Object.assign({}, acc), { [curr]: pinnedUrls[i] });
    }, {});
    return;
};
const PREACT_REGEX = /['"]preact([\/\w]+)?['"]/gm;
export const preactToCDN = async (code) => {
    if (!/preact/gm.test(code)) {
        return code;
    }
    await resolvePreactCdnSources();
    return code.replace(PREACT_REGEX, (fullMatch, subpath) => {
        if (subpath === "/hooks") {
            return fullMatch.replace("preact/hooks", PREACT_CDN_SOURCES["preact/hooks"]);
        }
        return fullMatch.replace("preact", PREACT_CDN_SOURCES["preact"]);
    });
};
const WITH_HYDRATE_REGEX = /import\s+\{\s*withHydrate\s*(?:as (\w+))?\}\s+from\s+['"]microsite\/hydrate(?:\.js)?['"];?/gim;
export const withHydrateTransformer = {
    filter: (source) => WITH_HYDRATE_REGEX.test(source),
    transform: (source) => source.replace(WITH_HYDRATE_REGEX, (_match, name = "withHydrate") => {
        return `const ${name} = i=>i;`;
    }),
};
/**
 * For the final browser code, we need to strip out withHydrate
 * by replacing it with an identity function which can be
 * completely stripped by a minifier
 */
export const stripWithHydrate = (source) => {
    if (!withHydrateTransformer.filter(source))
        return source;
    return withHydrateTransformer.transform(source);
};
export const hashContentSync = (content, len) => {
    const hash = crypto.createHash("sha256");
    hash.update(Buffer.from(content));
    let res = hash.digest("hex");
    if (typeof len === "number")
        res = res.slice(0, len);
    return res;
};
export const emitFile = (filename, content) => writeFile(resolve(process.cwd(), join(SSR_DIR, filename)), content.toString());
export const emitFinalAsset = (filename, content) => writeFile(resolve(process.cwd(), join(OUT_DIR, filename)), content.toString());
export const copyAssetToFinal = async (path, transform) => copyFile(path, resolve(process.cwd(), join(OUT_DIR, path.slice(resolve(SSR_DIR).length))), { transform });
const importPage = (filename) => import(resolve(process.cwd(), join(SSR_DIR, filename))).then((mod) => mod.default);
let UserDocument = null;
const getDocument = async () => {
    if (UserDocument)
        return UserDocument;
    else if (UserDocument === false)
        return InternalDocument;
    else if (await fileExists(resolve(process.cwd(), join(SSR_DIR, 'pages', '_document.js')))) {
        UserDocument = await importPage(join('pages', '_document.js'));
        return UserDocument;
    }
    UserDocument = false;
    return InternalDocument;
};
export const renderPage = async (data, manifest, { basePath = '/', debug = false, hasGlobalScript = false } = {}) => {
    let [Document, Page] = await Promise.all([getDocument(), importPage(manifest.name), resolvePreactCdnSources()]);
    Page = unwrapPage(Page);
    const pageProps = data.props;
    const headContext = {
        head: {
            current: [],
        },
    };
    const HeadProvider = ({ children }) => {
        return (h(__HeadContext.Provider, { value: headContext }, children));
    };
    const _a = await Document.prepare({
        renderPage: async () => ({
            __renderPageResult: renderToString(h(HeadProvider, null,
                h(Page, Object.assign({}, pageProps))))
        })
    }), { __renderPageResult } = _a, docProps = __rest(_a, ["__renderPageResult"]);
    const docContext = {
        dev: false,
        manifest,
        styles: manifest.hydrateStyleBindings,
        scripts: manifest.hydrateBindings,
        preload: manifest.hydrateBindings
            ? Object.values(PREACT_CDN_SOURCES)
            : [],
        preconnect: [],
        debug,
        hasGlobalScript,
        basePath,
        __renderPageResult,
        __renderPageHead: headContext.head.current
    };
    let contents = renderToString(h(__InternalDocContext.Provider, { value: docContext },
        h(Document, Object.assign({}, docProps))));
    contents = contents.replace(/<hydrate-marker>(\?h[\s\S]*?\?)<\/hydrate-marker>/g, '<$1>\n');
    contents = '<!DOCTYPE html>\n<!-- Generated by microsite -->\n' + contents;
    return {
        name: `${data.route.replace(/\.js$/, '')}.html`,
        contents,
    };
};
export const unwrapPage = (Page) => {
    return Page.Component ? Page.Component : Page;
};
let noop = () => Promise.resolve();
export const importDataMethods = (path) => import(path).then((mod) => {
    var _a, _b;
    const Page = mod.default;
    let getStaticPaths = noop;
    let getStaticProps = noop;
    if (Page.Component) {
        getStaticPaths = (_a = Page.getStaticPaths) !== null && _a !== void 0 ? _a : noop;
        getStaticProps = (_b = Page.getStaticProps) !== null && _b !== void 0 ? _b : noop;
    }
    return { getStaticPaths, getStaticProps };
});
// const hashFn = (s: (...args: any[]) => any) => s.toString().split('').reduce((a,b) => (((a << 5) - a) + b.charCodeAt(0))|0, 0);
export async function applyDataMethods(fileName, handlers) {
    const { getStaticPaths, getStaticProps } = handlers;
    // TODO: prefetch
    let staticPaths = [];
    staticPaths = await getStaticPaths({}).then((res) => { var _a; return (_a = res === null || res === void 0 ? void 0 : res.paths) !== null && _a !== void 0 ? _a : []; });
    if (staticPaths.length === 0) {
        const ctx = generateStaticPropsContext(fileName, fileName);
        const staticProps = await getStaticProps(ctx).then((res) => { var _a; return (_a = res === null || res === void 0 ? void 0 : res.props) !== null && _a !== void 0 ? _a : {}; });
        return [{ name: fileName, route: ctx.path, props: staticProps }];
    }
    return Promise.all(staticPaths.map((pathOrParams) => {
        const ctx = generateStaticPropsContext(fileName, pathOrParams);
        return getStaticProps(ctx).then((res) => {
            var _a;
            let staticProps = (_a = res === null || res === void 0 ? void 0 : res.props) !== null && _a !== void 0 ? _a : {};
            return { name: fileName, route: ctx.path, props: staticProps };
        });
    }));
}
// export async function printManifest(manifest: ManifestEntry[]) {
//   let tree = [];
//   manifest.forEach(entry => {
//     entry.name
//   })
// }