import { describe, expect, it } from '@jest/globals'
import { mapPanelsToModelNodes } from '@/lib/panel-node-mapper'

function createPanels(gltfNodeNames: string[]) {
  return gltfNodeNames.map((gltfNodeName, index) => ({
    id: `panel-db-${index + 1}`,
    gltfNodeName,
  }))
}

describe('panel-node-mapper', () => {
  it('应识别全局 +1 编号偏移，避免 panel_001 错绑到最后一个节点', () => {
    const panels = createPanels(['panel_000', 'panel_001', 'panel_002', 'panel_003'])
    const modelNodes = ['Board_1', 'Board_2', 'Board_3', 'Board_4']

    const result = mapPanelsToModelNodes(panels, modelNodes)

    expect(result.usedNumericOffset).toBe(1)
    expect(result.panelResolvedNodeNameById.get('panel-db-1')).toBe('Board_1')
    expect(result.panelResolvedNodeNameById.get('panel-db-2')).toBe('Board_2')
    expect(result.panelResolvedNodeNameById.get('panel-db-3')).toBe('Board_3')
    expect(result.panelResolvedNodeNameById.get('panel-db-4')).toBe('Board_4')
    expect(result.unresolvedPanelIds).toEqual([])
    expect(result.hasFallbackAssignments).toBe(false)
  })

  it('应保持一对一映射，不产生重复节点绑定', () => {
    const panels = createPanels(Array.from({ length: 49 }, (_, index) => `panel_${String(index).padStart(3, '0')}`))
    const modelNodes = Array.from({ length: 49 }, (_, index) => `Board_${index + 1}`)

    const result = mapPanelsToModelNodes(panels, modelNodes)
    const resolvedNodes = Array.from(result.panelResolvedNodeNameById.values())

    expect(result.panelResolvedNodeNameById.size).toBe(49)
    expect(new Set(resolvedNodes).size).toBe(49)
    expect(result.hasAmbiguousMappings).toBe(false)
  })

  it('应优先使用精确名称匹配，再处理其余节点', () => {
    const panels = createPanels(['Board_2', 'panel_001'])
    const modelNodes = ['Board_1', 'Board_2']

    const result = mapPanelsToModelNodes(panels, modelNodes)

    expect(result.panelResolvedNodeNameById.get('panel-db-1')).toBe('Board_2')
    expect(result.panelResolvedNodeNameById.get('panel-db-2')).toBe('Board_1')
    expect(result.hasFallbackAssignments).toBe(false)
  })

  it('在节点不足时应标记 unresolved，且只做可确定映射', () => {
    const panels = createPanels(['panel_001', 'panel_002'])
    const modelNodes = ['Board_1']

    const result = mapPanelsToModelNodes(panels, modelNodes)

    expect(result.panelResolvedNodeNameById.size).toBe(1)
    expect(result.unresolvedPanelIds.length).toBe(1)
  })

  it('不应把无法确认的板材顺序兜底映射到轮子或五金节点', () => {
    const panels = createPanels(['panel_001', 'panel_002', 'panel_003'])
    const modelNodes = ['wheel_left', 'caster_01', 'hardware_bracket']

    const result = mapPanelsToModelNodes(panels, modelNodes)

    expect(result.panelResolvedNodeNameById.size).toBe(0)
    expect(result.unresolvedPanelIds).toEqual([
      'panel-db-1',
      'panel-db-2',
      'panel-db-3',
    ])
  })
})