export type BBox = [number, number, number, number] // x, y, w, h, normalized 0-1

export interface Item {
  id: string
  label: string
  price: number
  bbox: BBox | null
}

export interface Receipt {
  id: string
  items: Item[]
  store_name: string | null
  date: string // YYYY-MM-DD; extracted, falls back to today, user-editable
  status: 'extracted' | 'grouped' | 'done'
  created_at: string
}

export interface Member {
  id: string
  name: string
}

export interface CospendProject {
  id: string
  name: string
}

export interface Group {
  id: string
  receipt_id: string
  name: string
  cospend_project_id: string
  payer_member_id: string
  member_ids: string[]
  item_ids: string[]
  status: 'pending' | 'submitted' | 'failed'
  share_url: string | null
  cospend_bill_id: string | null
  error: string | null
}

export interface SubmitResult {
  share_url: string
  amount: number
  bill_id: number
}

/** A group draft in progress client-side, before it's persisted via POST /groups. */
export interface GroupDraft {
  localId: string
  name: string
  payerMemberId: string | null
  memberIds: string[]
  itemIds: string[]
}