export interface AlbyInvoice {
  invoice: string // Lightning invoice (bolt11)
  paymentHash: string
  amount: number // Amount in satoshis
  expiresAt: number // Unix timestamp
}

export interface AlbyPaymentStatus {
  paid: boolean
  paymentHash?: string
  amount?: number
  confirmedAt?: number
}

export interface AlbyInvoiceRequest {
  amount: number // Amount in satoshis
  description?: string
  expiry?: number // Expiry in seconds (default 3600)
}

/**
 * WebLN provider interface (WebLN standard)
 * Used by Alby and other Lightning wallet extensions
 */
export interface WebLNProvider {
  enabled: boolean
  enable(): Promise<void>
  makeInvoice(request: { amount: number; defaultMemo?: string }): Promise<{ paymentRequest: string }>
  sendPayment(invoice: string): Promise<{ preimage: string }>
}

/**
 * Extended Window interface with WebLN provider
 */
declare global {
  interface Window {
    webln?: WebLNProvider
  }
}