// @ts-check
import pico from 'picocolors'
import { readFileSync } from 'node:fs'
import path from 'node:path'
import { exec } from './utils.js'

main()

async function main() {
  const { stdout: branch } = await exec('git', ['branch', '--show-current'])
  // only verify commit message on main and minor branches
  if (branch !== 'main' && branch !== 'minor') {
    return
  }

  const msgPath = path.resolve('.git/COMMIT_EDITMSG')
  const msg = readFileSync(msgPath, 'utf-8').trim()

  const commitRE =
    /^(revert: )?(feat|fix|docs|dx|style|refactor|perf|test|workflow|build|ci|chore|types|wip|release)(\(.+\))?: .{1,50}/

  if (!commitRE.test(msg)) {
    console.log()
    console.error(
      `  ${pico.white(pico.bgRed(' ERROR '))} ${pico.red(
        `invalid commit message format.`,
      )}\n\n` +
        pico.red(
          `  Proper commit message format is required for automated changelog generation. Examples:\n\n`,
        ) +
        `    ${pico.green(`feat(compiler): add 'comments' option`)}\n` +
        `    ${pico.green(
          `fix(v-model): handle events on blur (close #28)`,
        )}\n\n` +
        pico.red(`  See .github/commit-convention.md for more details.\n`),
    )
    process.exit(1)
  }
}