#!/usr/bin/env node
"use strict";

const path = require("node:path");
const { GitSnapshotStore, loadFileSnapshot } = require("./server");

function reminder(error) {
  const code = String(error?.message || error);
  const match = code.match(/snapshot_map_version_mismatch:([a-z0-9_]+)/i);
  if (match) {
    return `${code}\nPUBLIC_SNAPSHOT_REMINDER: ${match[1]} 的地图版本与 routing/public-navigation-anchor.json 声明不一致；发布前必须同步锚点声明。`;
  }
  return `${code}\nPUBLIC_SNAPSHOT_REMINDER: 公共快照契约未通过；请同步锚点、地图路径、编号和版本后再发布。`;
}

function validate(options = {}) {
  if (options.gitDir) {
    const store = new GitSnapshotStore(path.resolve(options.gitDir), options.ref || "HEAD");
    const snapshot = store.get();
    return { result: "PASS_100", anchor_version: snapshot.anchor.version, source_commit: snapshot.source_commit };
  }
  const snapshot = loadFileSnapshot();
  return { result: "PASS_100", anchor_version: snapshot.anchor.version, source_commit: null };
}

function parse(argv) {
  const options = {};
  for (let i = 0; i < argv.length; i += 1) {
    if (argv[i] === "--git-dir") options.gitDir = argv[++i];
    else if (argv[i] === "--ref") options.ref = argv[++i];
    else throw new Error(`UNKNOWN_ARGUMENT:${argv[i]}`);
  }
  return options;
}

if (require.main === module) {
  try {
    process.stdout.write(`${JSON.stringify(validate(parse(process.argv.slice(2))))}\n`);
  } catch (error) {
    process.stderr.write(`${reminder(error)}\n`);
    process.exitCode = 1;
  }
}

module.exports = { reminder, validate };