import { describe, it } from 'node:test'
import assert from 'node:assert/strict'
import {
  copyFirstProductLineAttrs,
  resolveStorageSlotRangeFill
} from './storage-slot-range-fill'

describe('copyFirstProductLineAttrs', () => {
  it('copies spec/expectedCellCount/viability to other rows', () => {
    const lines = [
      { specName: '1ml', expectedCellCount: 1.5, viability: 90, productCode: 'A' },
      { specName: '', expectedCellCount: undefined, viability: undefined, productCode: 'B' }
    ]
    const r = copyFirstProductLineAttrs(lines)
    assert.equal(r.ok, true)
    assert.equal(lines[1].specName, '1ml')
    assert.equal(lines[1].expectedCellCount, 1.5)
    assert.equal(lines[1].viability, 90)
    assert.equal(lines[1].productCode, 'B')
  })

  it('fails when fewer than 2 lines', () => {
    const r = copyFirstProductLineAttrs([{ specName: 'x' }])
    assert.equal(r.ok, false)
  })
})

describe('resolveStorageSlotRangeFill', () => {
  const box = 'node-1'
  const slots = [
    {
      id: 's1',
      orderNum: 1001,
      facilityNodeId: box,
      slotStatus: '空',
      occupiedCount: 0,
      slotCode: '1-1'
    },
    {
      id: 's2',
      orderNum: 1002,
      facilityNodeId: box,
      slotStatus: '空',
      occupiedCount: 0,
      slotCode: '1-2'
    },
    {
      id: 's3',
      orderNum: 1003,
      facilityNodeId: box,
      slotStatus: '占用',
      occupiedCount: 1,
      slotCode: '1-3'
    },
    {
      id: 's4',
      orderNum: 1004,
      facilityNodeId: box,
      slotStatus: '空',
      occupiedCount: 0,
      slotCode: '1-4'
    }
  ]

  it('fails when start/end different boxes', () => {
    const r = resolveStorageSlotRangeFill({
      slots: [{ ...slots[0] }, { ...slots[1], facilityNodeId: 'other', id: 'sx' }],
      startSlotId: 's1',
      endSlotId: 'sx',
      emptyLineCount: 1,
      formUsedSlotIds: []
    })
    assert.equal(r.ok, false)
    assert.match(r.message, /同一盒子/)
  })

  it('fails when range contains occupied', () => {
    const r = resolveStorageSlotRangeFill({
      slots,
      startSlotId: 's1',
      endSlotId: 's4',
      emptyLineCount: 2,
      formUsedSlotIds: []
    })
    assert.equal(r.ok, false)
    assert.match(r.message, /已占用/)
  })

  it('takes first N available in normalized range and skips form-used', () => {
    const emptySlots = slots.filter((s) => s.id !== 's3')
    const r = resolveStorageSlotRangeFill({
      slots: emptySlots,
      startSlotId: 's4',
      endSlotId: 's1',
      emptyLineCount: 2,
      formUsedSlotIds: ['s2']
    })
    assert.equal(r.ok, true)
    if (r.ok) {
      assert.deepEqual(r.slotIds, ['s1', 's4'])
    }
  })

  it('fails when available count < emptyLineCount', () => {
    const emptySlots = slots.filter((s) => s.id !== 's3')
    const r = resolveStorageSlotRangeFill({
      slots: emptySlots,
      startSlotId: 's1',
      endSlotId: 's2',
      emptyLineCount: 3,
      formUsedSlotIds: []
    })
    assert.equal(r.ok, false)
    assert.match(r.message, /不足/)
  })
})