File size: 3,703 Bytes
aefe381 | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 | """Queue and wait-time models."""
from dataclasses import dataclass, field
from datetime import datetime
from typing import Optional
from enum import Enum
import uuid
class QueueCategory(Enum):
"""Category of service queue."""
FOOD = "food"
MERCHANDISE = "merch"
RESTROOM = "restroom"
ENTRY = "entry"
EXIT = "exit"
TICKET = "ticket"
@property
def icon(self):
return {
"food": "🍕",
"merch": "🛍️",
"restroom": "🚻",
"entry": "🚪",
"exit": "🚶",
"ticket": "🎫",
}[self.value]
@property
def label(self):
return {
"food": "Food & Beverages",
"merch": "Merchandise",
"restroom": "Restrooms",
"entry": "Entry Gates",
"exit": "Exit Gates",
"ticket": "Ticket Counter",
}[self.value]
@dataclass
class QueueStation:
"""A single service station (e.g., one food stall)."""
id: str
name: str
category: str # QueueCategory value
zone_id: str
current_length: int = 0
avg_service_time_sec: float = 45.0
is_open: bool = True
lat: float = 0.0
lng: float = 0.0
@property
def estimated_wait_minutes(self) -> float:
if not self.is_open or self.current_length == 0:
return 0.0
return round((self.current_length * self.avg_service_time_sec) / 60, 1)
@property
def wait_level(self) -> str:
wait = self.estimated_wait_minutes
if wait < 5:
return "short"
elif wait < 15:
return "moderate"
elif wait < 30:
return "long"
else:
return "very_long"
@property
def wait_color(self) -> str:
return {
"short": "#22c55e",
"moderate": "#f59e0b",
"long": "#ef4444",
"very_long": "#18181b",
}[self.wait_level]
def to_dict(self) -> dict:
return {
"id": self.id,
"name": self.name,
"category": self.category,
"category_icon": QueueCategory(self.category).icon,
"category_label": QueueCategory(self.category).label,
"zone_id": self.zone_id,
"current_length": self.current_length,
"estimated_wait_minutes": self.estimated_wait_minutes,
"wait_level": self.wait_level,
"wait_color": self.wait_color,
"is_open": self.is_open,
"lat": self.lat,
"lng": self.lng,
}
@dataclass
class VirtualQueueTicket:
"""A virtual queue reservation for an attendee."""
id: str = field(default_factory=lambda: str(uuid.uuid4())[:8].upper())
user_id: str = ""
station_id: str = ""
station_name: str = ""
category: str = ""
position: int = 0
estimated_ready_time: Optional[datetime] = None
status: str = "waiting" # waiting, ready, served, expired
created_at: datetime = field(default_factory=datetime.utcnow)
def to_dict(self) -> dict:
return {
"id": self.id,
"user_id": self.user_id,
"station_id": self.station_id,
"station_name": self.station_name,
"category": self.category,
"category_icon": QueueCategory(self.category).icon if self.category else "",
"position": self.position,
"estimated_ready_time": (
self.estimated_ready_time.isoformat()
if self.estimated_ready_time
else None
),
"status": self.status,
"created_at": self.created_at.isoformat(),
}
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