import process from "node:process";
import { mkdir, readFile, writeFile } from "node:fs/promises";
import { dirname } from "node:path";
import { fileURLToPath, URL } from "node:url";
import { zodToJsonSchema } from "zod-to-json-schema";
import { viewCommandSchema } from "../src/features/agent/presentation/command-schema.ts";

const sourceUrl = new URL("../src/features/agent/presentation/command-schema.ts", import.meta.url);
const source = await readFile(sourceUrl, "utf8");
const schema =
  JSON.stringify(zodToJsonSchema(viewCommandSchema, { $refStrategy: "none" }), null, 2) + "\n";
const targets = [
  [
    new URL("../../next-tjwater-agent/src/frontendAction/command.ts", import.meta.url),
    "// Generated by next-tjwater-frontend/scripts/export-view-command-contract.mjs.\n" + source
  ],
  [
    new URL(
      "../../next-tjwater-agent/src/frontendAction/view-command.schema.json",
      import.meta.url
    ),
    schema
  ],
  [new URL("../../next-tjwater-server/contracts/view-command.schema.json", import.meta.url), schema]
];
// The same executable examples and rejection matrix travel with each independent repository.
for (const name of ["unified-presentation.jsonl", "chart-publication-cases.json"]) {
  const fixture = await readFile(new URL(`../tests/fixtures/${name}`, import.meta.url), "utf8");
  for (const repository of ["next-tjwater-agent", "next-tjwater-server"])
    targets.push([new URL(`../../${repository}/tests/fixtures/${name}`, import.meta.url), fixture]);
}
for (const [url, content] of targets) {
  if (process.argv.includes("--check")) {
    if ((await readFile(url, "utf8")) !== content)
      throw new Error(`View command contract differs: ${fileURLToPath(url)}`);
  } else {
    await mkdir(dirname(fileURLToPath(url)), { recursive: true });
    await writeFile(url, content);
  }
}
process.stdout.write(
  `View command contract ${process.argv.includes("--check") ? "checked" : "exported"}.\n`
);