/**
 * Print Log 为唯一数据源，labelId 格式: X-YYMMDD
 */
export interface PrintLogRecord {
  labelId: string
  productName: string
  category: string
  template: string
  templateSize: string
  templateName: string
  printedAt: string
  printedBy: string
  location: string
  expiryDate: string
  qty: number
  dateFull: string
  time: string
  labelType?: string
  printer: string
}

export const printLogList: PrintLogRecord[] = [
  { labelId: '1-251201', productName: 'Whole Milk', category: 'Dairy', template: '2"x2" Basic', templateSize: '2"x2"', templateName: 'Basic', printedAt: '2024-03-20 09:30 AM', printedBy: 'Alice Johnson', location: 'Downtown Store (101)', expiryDate: '2024-03-27 14:30', qty: 1, dateFull: 'Mar 20, 2024', time: '09:30 AM', printer: 'Zebra ZD421' },
  { labelId: '2-251201', productName: 'Ground Beef', category: 'Meat', template: '2"x2" Basic', templateSize: '2"x2"', templateName: 'Basic', printedAt: '2024-03-20 10:15 AM', printedBy: 'Bob Smith', location: 'Uptown Store (102)', expiryDate: '2024-03-23 09:45', qty: 1, dateFull: 'Mar 20, 2024', time: '10:15 AM', printer: 'Zebra ZD421' },
  { labelId: '3-251201', productName: 'Croissant', category: 'Bakery', template: '2"x2" Basic', templateSize: '2"x2"', templateName: 'Basic', printedAt: '2024-03-19 14:00 PM', printedBy: 'Charlie Brown', location: 'Downtown Store (101)', expiryDate: '2024-03-20 16:00', qty: 1, dateFull: 'Mar 19, 2024', time: '02:00 PM', printer: 'Zebra ZD421' },
  { labelId: '4-251201', productName: 'Caesar Salad', category: 'Deli', template: '2"x6" G\'n\'G !!!', templateSize: '2"x6"', templateName: "G'n'G", printedAt: '2024-03-18 11:45 AM', printedBy: 'Alice Johnson', location: 'Downtown Store (101)', expiryDate: '2024-03-21 11:30', qty: 1, dateFull: 'Mar 18, 2024', time: '11:45 AM', printer: 'Brother QL-820NWB' },
  { labelId: '5-251201', productName: 'Orange Juice', category: 'Beverage', template: '2"x2" Basic', templateSize: '2"x2"', templateName: 'Basic', printedAt: '2024-03-18 08:20 AM', printedBy: 'Bob Smith', location: 'Airport Kiosk (201)', expiryDate: '2024-03-25 08:00', qty: 1, dateFull: 'Mar 18, 2024', time: '08:20 AM', printer: 'Brother QL-820NWB' },
]

export function getRecordByLabelId(labelId: string): PrintLogRecord | undefined {
  return printLogList.find(r => r.labelId === labelId)
}

/** 生成下一个 labelId，格式与 print log 一致 X-YYMMDD */
export function generateNextLabelId(): string {
  const now = new Date()
  const yy = String(now.getFullYear()).slice(-2)
  const mm = String(now.getMonth() + 1).padStart(2, '0')
  const dd = String(now.getDate()).padStart(2, '0')
  const datePart = yy + mm + dd
  const todayRecords = printLogList.filter(r => {
    const parts = r.labelId.split('-')
    return parts.length === 2 && parts[1] === datePart
  })
  const maxSeq = todayRecords.length > 0
    ? Math.max(...todayRecords.map(r => parseInt(r.labelId.split('-')[0], 10)))
    : 0
  return `${maxSeq + 1}-${datePart}`
}