#!/usr/bin/env node
import { createHash } from "node:crypto";
import { readFileSync, writeFileSync } from "node:fs";
import { resolve } from "node:path";

import {
  projectDisplayPaths,
} from "../runtime/sdk/src/project-config.js";
import {
  createProjectNodePaths,
} from "../runtime/sdk/src/project-node-paths.js";

const projectPaths = createProjectNodePaths();
const displayPaths = projectDisplayPaths();
const mode = process.argv.includes("--write") ? "write" : "check";
const artifacts = [
  {
    displayPath: displayPaths.boundarySummary,
    sourceKey: "boundarySummary",
    filePath: resolve(projectPaths.wasmPortRoot, "build/wasm/sim-configs-inventory/boundary-summary.tsv"),
  },
  {
    displayPath: displayPaths.iniBoundarySummary,
    sourceKey: "iniBoundarySummary",
    filePath: resolve(projectPaths.wasmPortRoot, "build/wasm/sim-configs-inventory/ini-boundary-summary.tsv"),
  },
];
const targetFiles = [
  resolve(projectPaths.wasmPortRoot, "runtime/sdk/src/linuxcnc-hal.js"),
  resolve(projectPaths.wasmPortRoot, "runtime/sdk/src/project-release-readiness.js"),
];

function escapeRegExp(text) {
  return String(text).replace(/[.*+?^${}()|[\]\\]/g, "\\$&");
}

function sha256(path) {
  return createHash("sha256")
    .update(readFileSync(path))
    .digest("hex");
}

const hashes = artifacts.map((artifact) => ({
  ...artifact,
  hash: sha256(artifact.filePath),
}));

function replaceHashBlock(text) {
  let nextText = text;
  for (const { sourceKey, hash } of hashes) {
    const pattern = new RegExp(
      `(\\[(?:PROJECT_DISPLAY_PATHS|DEFAULT_PROJECT_DISPLAY_PATHS)\\.${escapeRegExp(sourceKey)}\\]:\\s*\\n\\s*")[a-f0-9]{64}(")`,
      "g",
    );
    nextText = nextText.replace(pattern, `$1${hash}$2`);
  }
  return nextText;
}

const staleFiles = [];
for (const targetFile of targetFiles) {
  const text = readFileSync(targetFile, "utf8");
  const nextText = replaceHashBlock(text);
  if (nextText !== text) {
    staleFiles.push(targetFile);
    if (mode === "write") {
      writeFileSync(targetFile, nextText);
    }
  }
}

if (staleFiles.length > 0 && mode === "check") {
  console.error(`sim_config_boundary_hashes=stale files=${staleFiles.join(",")}`);
  console.error("run: wasm-port/tools/update_sim_config_boundary_hashes.sh --write");
  process.exit(1);
}

for (const { displayPath, hash } of hashes) {
  console.log(`${displayPath} ${hash}`);
}
console.log(`sim_config_boundary_hashes=${staleFiles.length === 0 ? "ok" : "updated"}`);