import { describe, expect, it } from 'bun:test'

import {

isPlaceholder,

isUsableSecret,

parseEnv,

reconcileEnvContent,

upsertEnv,

} from './env-files.ts'

describe('placeholder detection', () => {

it('recognizes underscore and hyphen template prefixes', () => {

expect(isPlaceholder('your_secret_key')).toBe(true)

expect(isPlaceholder('your-secure-production-auth-secret-here')).toBe(true)

expect(isUsableSecret('BETTER_AUTH_SECRET', 'your-secure-production-auth-secret-here')).toBe(

false

)

expect(isPlaceholder('yourActualSecret')).toBe(false)

})

})

describe('upsertEnv', () => {

it('writes the value that parseEnv will use', () => {

const updated = upsertEnv('RESEND_API_KEY=old\nOTHER=value\n', 'RESEND_API_KEY', 'current')

expect(parseEnv(updated).get('RESEND_API_KEY')).toBe('current')

})

it('fails fast when duplicate active entries make the effective write ambiguous', () => {

expect(() =>

upsertEnv(

'RESEND_API_KEY=old\nexport RESEND_API_KEY=current\n',

'RESEND_API_KEY',

'replacement'

)

).toThrow('Duplicate active RESEND_API_KEY entries')

})

})

describe('reconcileEnvContent', () => {

it('applies provider removals and replacements to one snapshot', () => {

const reconciled = reconcileEnvContent(

'SMTP_HOST=old-host\nSMTP_PORT=587\nRESEND_API_KEY=old-key\n',

['SMTP_HOST', 'SMTP_PORT'],

{ RESEND_API_KEY: 'new-key' }

)

expect(parseEnv(reconciled)).toEqual(new Map([['RESEND_API_KEY', 'new-key']]))

})

it('fails before returning content when a replacement key is duplicated', () => {

const content = 'SMTP_HOST=old-host\nRESEND_API_KEY=old-key\nRESEND_API_KEY=newer-key\n'

expect(() =>

reconcileEnvContent(content, ['SMTP_HOST'], { RESEND_API_KEY: 'replacement' })

).toThrow('Duplicate active RESEND_API_KEY entries')

expect(parseEnv(content).get('SMTP_HOST')).toBe('old-host')

})

})