import assert from 'node:assert/strict'
import fsp from 'node:fs/promises'
import path from 'node:path'
import { REPO_ROOT } from './lib.mjs'

const filename = path.join(REPO_ROOT, 'build', 'installer.nsh')
const source = await fsp.readFile(filename, 'utf8')

assert.match(source, /OpenProcess\(i 0x100000, i 0, i R1\) p \.R2 \?e/)
assert.match(source, /Pop \$R3/)
assert.doesNotMatch(source, /GetLastError\(\)/)
assert.match(source, /WaitForSingleObject\(p R2, i 120000\)/)
assert.match(source, /ElseIf\} \$R3 != 87/)

const waitIndex = source.indexOf('WaitForSingleObject')
const imageCheckIndex = source.indexOf('SetEnvironmentVariable(t "YCODE_UPDATE_TARGET_DIR"')
assert.ok(waitIndex >= 0 && imageCheckIndex > waitIndex, 'image check must run after waiting for the parent PID')
assert.ok(imageCheckIndex > source.indexOf('${ElseIf} $R3 != 87'), 'image check must run after the OpenProcess branch join')
assert.ok(source.includes('t "$INSTDIR\\${APP_EXECUTABLE_FILENAME}"'))

assert.match(source, /nsExec::ExecToStack/)
assert.match(source, /Get-CimInstance Win32_Process/)
assert.match(source, /TrimEnd\(\[char\]92\)/)
assert.match(source, /AddSeconds\(5\)/)
assert.match(source, /Start-Sleep -Milliseconds 500/)
assert.match(source, /if \(-not \$\$process\.ExecutablePath\) \{ \$\$found=\$\$true; continue \}/)
assert.match(source, /Name -ieq '\$\{APP_EXECUTABLE_FILENAME\}'/)
assert.match(source, /StrCmp \$R4 "0" \+3/)

assert.doesNotMatch(source, /KillProcess|taskkill|Stop-Process|_CHECK_APP_RUNNING/)
assert.doesNotMatch(source, /GetProcessInfo/)
assert.doesNotMatch(source, /GetLastError\(\)/)
assert.doesNotMatch(source, /Name -ieq 'YCode\.exe'/)

console.log('NSIS updater safety checks passed.')