export function formatTimestamp(timestamp: number, format: string = 'YYYY-MM-DD'): string {
 if (!timestamp) {
 return '-'
 }

 const date = new Date(timestamp)
 const year = date.getFullYear()
 const month = String(date.getMonth() + 1).padStart(2, '0')
 const day = String(date.getDate()).padStart(2, '0')
 const hours = String(date.getHours()).padStart(2, '0')
 const minutes = String(date.getMinutes()).padStart(2, '0')
 const seconds = String(date.getSeconds()).padStart(2, '0')

 return format.replace(/YYYY|MM|DD|HH|mm|ss/g, (match) => {
 switch (match) {
 case 'YYYY':
 return String(year)
 case 'MM':
 return month
 case 'DD':
 return day
 case 'HH':
 return hours
 case 'mm':
 return minutes
 case 'ss':
 return seconds
 default:
 return match
 }
 })
}