import { existsSync, readFileSync, writeFileSync } from 'node:fs'
import path from 'node:path'
import { fileURLToPath } from 'node:url'

const __dirname = path.dirname(fileURLToPath(import.meta.url))
const rootDir = path.resolve(__dirname, '..')
const rootPackagePath = path.join(rootDir, 'package.json')

const rootPackage = JSON.parse(readFileSync(rootPackagePath, 'utf8'))
const rootVersion = rootPackage.version
const workspacePaths = Array.isArray(rootPackage.workspaces) ? rootPackage.workspaces : []

if (typeof rootVersion !== 'string' || rootVersion.length === 0) {
  throw new Error('Root package.json must contain a valid "version"')
}

const dependencySections = [
  'dependencies',
  'devDependencies',
  'peerDependencies',
  'optionalDependencies',
]

const touched = []

for (const workspacePath of workspacePaths) {
  const packagePath = path.join(rootDir, workspacePath, 'package.json')
  if (!existsSync(packagePath)) {
    continue
  }

  const pkg = JSON.parse(readFileSync(packagePath, 'utf8'))
  let changed = false

  if (pkg.version !== rootVersion) {
    pkg.version = rootVersion
    changed = true
  }

  for (const section of dependencySections) {
    const deps = pkg[section]
    if (!deps || typeof deps !== 'object') {
      continue
    }

    for (const name of Object.keys(deps)) {
      if (!name.startsWith('@getpaseo/')) {
        continue
      }
      if (name === pkg.name) {
        continue
      }
      if (deps[name] !== rootVersion) {
        deps[name] = rootVersion
        changed = true
      }
    }
  }

  if (changed) {
    writeFileSync(packagePath, `${JSON.stringify(pkg, null, 2)}\n`)
    touched.push(path.relative(rootDir, packagePath))
  }
}

if (touched.length === 0) {
  console.log(`Workspace versions and internal deps already synced to ${rootVersion}`)
} else {
  console.log(`Synced to ${rootVersion}:`)
  for (const file of touched) {
    console.log(`- ${file}`)
  }
}