import test from 'node:test'
import assert from 'node:assert/strict'
import {
  required,
  positiveAmount,
  nonEmptyArray,
  shopId,
  voucherBalanced,
  voucherEntryErrors,
} from '../src/utils/validate.js'

test('required rejects blank', () => {
  assert.equal(required(''), false)
  assert.equal(required('   '), false)
  assert.equal(required(null), false)
  assert.equal(required(undefined), false)
  assert.equal(required('x'), true)
})

test('positiveAmount', () => {
  assert.equal(positiveAmount(0), false)
  assert.equal(positiveAmount(-1), false)
  assert.equal(positiveAmount('abc'), false)
  assert.equal(positiveAmount(0.01), true)
})

test('nonEmptyArray', () => {
  assert.equal(nonEmptyArray([]), false)
  assert.equal(nonEmptyArray('x'), false)
  assert.equal(nonEmptyArray([1]), true)
})

test('shopId', () => {
  assert.equal(shopId(''), false)
  assert.equal(shopId('shop-001'), true)
})

test('voucherBalanced happy path', () => {
  const entries = [
    { account_code: '1002', debit: 100, credit: 0 },
    { account_code: '6001', debit: 0, credit: 100 },
  ]
  assert.equal(voucherBalanced(entries), true)
  assert.deepEqual(voucherEntryErrors(entries), [])
})

test('voucherBalanced rejects imbalance', () => {
  const entries = [
    { account_code: '1002', debit: 100, credit: 0 },
    { account_code: '6001', debit: 0, credit: 90 },
  ]
  assert.equal(voucherBalanced(entries), false)
  assert.ok(voucherEntryErrors(entries).some((m) => m.includes('不平衡')))
})

test('voucher entries reject missing code and double-side', () => {
  const entries = [
    { account_code: '', debit: 50, credit: 0 },
    { account_code: '6001', debit: 10, credit: 10 },
  ]
  const errors = voucherEntryErrors(entries)
  assert.ok(errors.some((m) => m.includes('科目编码')))
  assert.ok(errors.some((m) => m.includes('不能同时')))
})

test('voucher entries reject all-zero row', () => {
  const errors = voucherEntryErrors([{ account_code: '1002', debit: 0, credit: 0 }])
  assert.ok(errors.some((m) => m.includes('至少填一边')))
})