2021-03-07 15:37:37 +01:00

162 lines
4.5 KiB
TypeScript

import cheerio from "cheerio";
import {
replaceImportFromStaticInJsCode,
generateCssCodeToDefineGlobals
} from "../replaceImportFromStatic";
import fs from "fs";
import { join as pathJoin } from "path";
import { objectKeys } from "evt/tools/typeSafety/objectKeys";
export const pageIds = ["login.ftl", "register.ftl", "info.ftl", "error.ftl", "login-reset-password.ftl", "login-verify-email.ftl"] as const;
export type PageId = typeof pageIds[number];
function loadAdjacentFile(fileBasename: string){
return fs.readFileSync(pathJoin(__dirname, fileBasename))
.toString("utf8");
};
function loadFtlFile(ftlFileBasename: PageId | "template.ftl") {
try {
return loadAdjacentFile(ftlFileBasename)
.match(/^<script>const _=((?:.|\n)+)<\/script>[\n]?$/)![1];
} catch {
return "{}";
}
}
export function generateFtlFilesCodeFactory(
params: {
ftlValuesGlobalName: string;
cssGlobalsToDefine: Record<string, string>;
indexHtmlCode: string;
}
) {
const { ftlValuesGlobalName, cssGlobalsToDefine, indexHtmlCode } = params;
const $ = cheerio.load(indexHtmlCode);
$("script:not([src])").each((...[, element]) => {
const { fixedJsCode } = replaceImportFromStaticInJsCode({
ftlValuesGlobalName,
"jsCode": $(element).html()!
});
$(element).text(fixedJsCode);
});
([
["link", "href"],
["script", "src"],
] as const).forEach(([selector, attrName]) =>
$(selector).each((...[, element]) => {
const href = $(element).attr(attrName);
if (!href?.startsWith("/")) {
return;
}
$(element).attr(attrName, "${url.resourcesPath}/build" + href);
})
);
//FTL is no valid html, we can't insert with cheerio, we put placeholder for injecting later.
const ftlCommonPlaceholders = {
'{ "x": "vIdLqMeOed9sdLdIdOxdK0d" }': loadFtlFile("template.ftl"),
'<!-- xIdLqMeOedErIdLsPdNdI9dSlxI -->':
[
'<#if scripts??>',
' <#list scripts as script>',
' <script src="${script}" type="text/javascript"></script>',
' </#list>',
'</#if>'
].join("\n")
};
const pageSpecificCodePlaceholder = "<!-- dIddLqMeOedErIdLsPdNdI9dSl42sw -->";
$("head").prepend(
[
...(Object.keys(cssGlobalsToDefine).length === 0 ? [] : [
'',
'<style>',
generateCssCodeToDefineGlobals(
{ cssGlobalsToDefine }
).cssCodeToPrependInHead,
'</style>',
''
]),
...["Object.deepAssign.js", "String.htmlUnescape.js"].map(
fileBasename => [
"<script>",
loadAdjacentFile(fileBasename),
"</script>"
].join("\n")
),
'<script>',
` window.${ftlValuesGlobalName}= Object.assign(`,
` {},`,
` ${objectKeys(ftlCommonPlaceholders)[0]}`,
' );',
'</script>',
'',
pageSpecificCodePlaceholder,
'',
objectKeys(ftlCommonPlaceholders)[1]
].join("\n"),
);
const partiallyFixedIndexHtmlCode = $.html();
function generateFtlFilesCode(
params: {
pageId: PageId;
}
): { ftlCode: string; } {
const { pageId } = params;
const $ = cheerio.load(partiallyFixedIndexHtmlCode);
const ftlPlaceholders = {
'{ "x": "kxOlLqMeOed9sdLdIdOxd444" }': loadFtlFile(pageId),
...ftlCommonPlaceholders
};
let ftlCode = $.html()
.replace(
pageSpecificCodePlaceholder,
[
'<script>',
` Object.deepAssign(`,
` window.${ftlValuesGlobalName},`,
` { "pageId": "${pageId}" }`,
' );',
` Object.deepAssign(`,
` window.${ftlValuesGlobalName},`,
` ${objectKeys(ftlPlaceholders)[0]}`,
' );',
'</script>'
].join("\n")
);
objectKeys(ftlPlaceholders)
.forEach(id => ftlCode = ftlCode.replace(id, ftlPlaceholders[id]));
return { ftlCode };
}
return { generateFtlFilesCode };
}