import { readdirSync, readFileSync, writeFileSync } from "node:fs";
import { basename, join } from "node:path";
import { format } from "prettier";

const docsDir = new URL("../src/docs", import.meta.url);
const outputFile = new URL("../src/docs.generated.ts", import.meta.url);

const docs = Object.fromEntries(
  readdirSync(docsDir)
    .filter((fileName) => fileName.endsWith(".md"))
    .sort()
    .map((fileName) => [
      basename(fileName, ".md"),
      readFileSync(join(docsDir.pathname, fileName), "utf8"),
    ])
);

const output = await format(
  [
    "// This file is generated by scripts/generate-docs.mjs.",
    "// Edit markdown files in src/docs instead.",
    `export const cliDocs = ${JSON.stringify(docs, null, 2)} as const;`,
    "",
    "export type CliDocName = keyof typeof cliDocs;",
    "",
  ].join("\n"),
  {
    filepath: outputFile.pathname,
  }
);

writeFileSync(outputFile, output, "utf8");