from enum import Enum


class Role(str, Enum):
    admin = "admin"
    procurement_officer = "procurement_officer"
    evaluator = "evaluator"
    finance = "finance"
    viewer = "viewer"


class ProcurementStatus(str, Enum):
    draft = "draft"
    submitted = "submitted"
    in_progress = "in_progress"
    approved = "approved"
    rejected = "rejected"
    completed = "completed"
    cancelled = "cancelled"