import { lockfile } from '@vltpkg/graph'
import { PackageJson } from '@vltpkg/package-json'

const packageJson = new PackageJson()
const mainManifest = packageJson.read(projectRoot)

// Load from vlt-lock.json
const graph = lockfile.load({
  projectRoot,
  mainManifest,
  packageJson,
})

// Load from node_modules/.vlt-lock.json (faster, has manifests)
const graph = lockfile.loadHidden({
  projectRoot,
  mainManifest,
  packageJson,
})

// Load from in-memory data
const graph = lockfile.loadObject(
  { projectRoot, mainManifest },
  lockfileData,
)

import { lockfile } from '@vltpkg/graph'

// Save to vlt-lock.json (no manifests, compact format)
lockfile.save({ graph, modifiers })

// Save to node_modules/.vlt-lock.json (includes manifests + build state)
lockfile.saveHidden({ graph, modifiers })

// Get lockfile data without writing
const data = lockfile.lockfileData({ graph, saveManifests: true })

type LockfileData = {
  lockfileVersion: number
  options: SpecOptions & { modifiers?: Record<string, string> }
  nodes: Record<DepID, LockfileNode>
  edges: LockfileEdges
}

// Node: [flags, name?, integrity?, resolved?, location?, manifest?, rawManifest?, platform?, bins?, buildState?]
// Edge key: "${fromId} ${specName}" → value: "${type} ${bareSpec} ${toId|MISSING}"