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generate-routes.ts
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generate-routes.ts
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import { promises as fs } from "fs";
import { relative } from "path";
import _locreq from "locreq";
import { walk } from "./utils/walk";
import { importPath } from "./utils/import-path";
import { assertType, predicates } from "@sealcode/ts-predicates";
import { unescape_url_params } from "./utils/escape-url-params";
const target_locreq = _locreq(process.cwd());
async function extractActionName(full_file_path: string): Promise<string> {
const file_content = await fs.readFile(full_file_path, "utf-8");
const result = file_content.match(/export const actionName = "(\w+)"/);
if (result === null) {
throw new Error("Missing 'export const actionName' statement?");
}
return assertType(
result[1],
predicates.string,
"Missing export default class?"
);
}
export async function generateRoutes(): Promise<void> {
const files = await Promise.all(
(
await walk(target_locreq.resolve("src/back/routes"))
)
.filter((f) => f.endsWith(".page.ts") || f.endsWith(".form.ts"))
.map(async (fullpath) => ({
fullpath,
actionName: await extractActionName(fullpath),
url: unescape_url_params(
"/" +
relative(
target_locreq.resolve("src/back/routes"),
fullpath
).replace(/\..+/, "")
),
}))
);
await fs.writeFile(
target_locreq.resolve("src/back/routes/routes.ts"),
`// DO NOT EDIT! This file is generated automaticaly with npm run generate-routes
import Router from "@koa/router";
import { Middlewares } from "sealious";
${files
.map(
({ actionName, fullpath }) =>
`import { default as ${actionName} } from "${importPath(
target_locreq.resolve("src/back/routes/routes.ts"),
fullpath
)}";`
)
.join("\n")}
${files
.map(({ actionName, url }) => `export const ${actionName}URL = "${url}";`)
.join("\n")}
export default function mountAutoRoutes(router: Router) {
${files
.map(
({
actionName,
}) => ` router.use(${actionName}URL, Middlewares.extractContext(), Middlewares.parseBody());
${actionName}.mount(router, ${actionName}URL);`
)
.join("\n\n")}
}
`
);
// eslint-disable-next-line no-console
console.log("Successfuly generated new src/back/routes/routes.ts file");
}

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