// web-admin/scripts/app-build-meta.test.ts
import assert from 'node:assert/strict'
import fs from 'node:fs'
import os from 'node:os'
import path from 'node:path'
import { describe, it } from 'node:test'
import {
  createAppBuildMeta,
  readGitShort,
  versionJsonText,
  writeVersionJson
} from './app-build-meta.ts'

describe('createAppBuildMeta', () => {
  it('joins git short hash and timestamp', () => {
    assert.deepEqual(createAppBuildMeta('3.0.2', 1730000000000, 'a1b2c3d'), {
      version: '3.0.2',
      buildId: 'a1b2c3d-1730000000000'
    })
  })

  it('uses nogit when the hash is empty', () => {
    assert.equal(createAppBuildMeta('3.0.2', 5, '  ').buildId, 'nogit-5')
  })

  it('changes buildId when the timestamp changes', () => {
    const a = createAppBuildMeta('3.0.2', 1, 'abc')
    const b = createAppBuildMeta('3.0.2', 2, 'abc')
    assert.notEqual(a.buildId, b.buildId)
  })
})

describe('readGitShort', () => {
  it('trims command output', () => {
    assert.equal(readGitShort(() => 'abc123\n'), 'abc123')
  })

  it('returns nogit when the command throws or is blank', () => {
    assert.equal(
      readGitShort(() => {
        throw new Error('no git')
      }),
      'nogit'
    )
    assert.equal(readGitShort(() => '   '), 'nogit')
  })
})

describe('version.json', () => {
  it('writes pretty json with a trailing newline', () => {
    const text = versionJsonText({ version: '3.0.2', buildId: 'abc-1' })
    assert.equal(text, '{\n  "version": "3.0.2",\n  "buildId": "abc-1"\n}\n')
  })

  it('writes dist/version.json', () => {
    const dir = fs.mkdtempSync(path.join(os.tmpdir(), 'app-ver-'))
    writeVersionJson(dir, { version: '3.0.3', buildId: 'def-9' })
    const raw = fs.readFileSync(path.join(dir, 'version.json'), 'utf8')
    assert.deepEqual(JSON.parse(raw), { version: '3.0.3', buildId: 'def-9' })
  })
})