from enum import StrEnum


class SubscriptionTargetType(StrEnum):
    USER = "user"
    CHAT = "chat"


class SubscriptionScheduleType(StrEnum):
    ONCE = "once"
    DAILY = "daily"
    WEEKDAY = "weekday"
    WEEKLY = "weekly"
    MONTHLY = "monthly"
    INTERVAL = "interval"


class PushSubscriptionStatus(StrEnum):
    ACTIVE = "active"
    PAUSED = "paused"
    CANCELLED = "cancelled"
    COMPLETED = "completed"


class PushDeliveryStatus(StrEnum):
    PENDING = "pending"
    PROCESSING = "processing"
    RETRY = "retry"
    SENT = "sent"
    FAILED = "failed"
    SKIPPED = "skipped"


class SubscriptionAuditAction(StrEnum):
    CREATE = "subscription.create"
    PAUSE = "subscription.pause"
    RESUME = "subscription.resume"
    CANCEL = "subscription.cancel"
    UPDATE_TIMEZONE = "subscription.update_timezone"
    UPDATE_QUIET_HOURS = "subscription.update_quiet_hours"
    DELIVERY_SENT = "subscription.delivery.sent"
    DELIVERY_FAILED = "subscription.delivery.failed"
    DELIVERY_SKIPPED = "subscription.delivery.skipped"


DEFAULT_SUBSCRIPTION_TIMEZONE = "Asia/Shanghai"
MAX_ACTIVE_SUBSCRIPTIONS = 50
MAX_DAILY_DELIVERIES = 96
MIN_INTERVAL_MINUTES = 15
DELIVERY_RETRY_DELAYS_SECONDS = (60, 300, 900)
SUBSCRIPTION_LEASE_SECONDS = 120
DELIVERY_LEASE_SECONDS = 300

SUBSCRIPTION_NOT_FOUND = "Subscription not found"
DELIVERY_NOT_FOUND = "Subscription delivery not found"
SUBSCRIPTION_LIMIT_REACHED = "A user may enable at most 50 subscriptions"
DAILY_DELIVERY_LIMIT_REACHED = "Daily delivery limit reached"
INVALID_SCHEDULE = "Unsupported or invalid schedule expression"
INVALID_TIMEZONE = "Invalid IANA timezone"
INVALID_QUIET_HOURS = "Quiet hours must use different HH:MM start and end values"
INVALID_PRIVATE_TARGET = "Private subscriptions must target the current user's open_id"
INVALID_GROUP_TARGET = "Group subscriptions must be created by an administrator in the current group"
INACTIVE_USER = "Feishu user is disabled"
EMPTY_PROMPT = "Subscription prompt is required"