141 lines
5.2 KiB
Python
141 lines
5.2 KiB
Python
from threading import Thread
|
|
from flask import Flask, jsonify, send_file
|
|
from time import sleep
|
|
from dataclasses import dataclass
|
|
from datetime import datetime
|
|
import serial
|
|
import uuid
|
|
from collections import deque
|
|
|
|
app = Flask(__name__)
|
|
|
|
server_id = uuid.uuid4()
|
|
print("Server ID: ", server_id)
|
|
|
|
@dataclass
|
|
class SharedData:
|
|
messages: deque
|
|
last_message_index: int
|
|
|
|
# Keep this the same as max_messages on the client!
|
|
max_message_cache = 200
|
|
shared_data = SharedData(deque(maxlen=max_message_cache), -1)
|
|
|
|
|
|
|
|
@dataclass
|
|
class Message:
|
|
payload: bytes
|
|
received_from: int
|
|
received_at: datetime
|
|
internal_id: int
|
|
|
|
def readable_time(self):
|
|
return self.received_at.strftime('%H:%M:%S')
|
|
|
|
def priority_bit(self):
|
|
return (self.received_from >> 10) & 0b1
|
|
|
|
def sender_type(self):
|
|
return (self.received_from >> 8) & 0b11
|
|
|
|
def sender_id(self):
|
|
return (self.received_from >> 0) & 0b1111_1111
|
|
|
|
@staticmethod
|
|
def human_readable_type(sender_type, sender_id):
|
|
return [('controller' if sender_id == 0 else 'info'), 'puzzle', 'needy', 'RESERVED TYPE'][sender_type]
|
|
|
|
def _parse_state_update(self):
|
|
timeleft = self.payload[1] << 0x18 | self.payload[2] << 0x10 | self.payload[3] << 0x08 | self.payload[4]
|
|
strikes = self.payload[5]
|
|
max_strikes = self.payload[6]
|
|
solved_puzzle_modules = self.payload[7]
|
|
|
|
return f'{timeleft/1000:3.2f} {strikes:02}/{max_strikes:02} [{solved_puzzle_modules:02}]'
|
|
|
|
def parse_message(self):
|
|
sender_type = self.sender_type()
|
|
message_type = self.payload[0]
|
|
try:
|
|
if sender_type == 0b00 and self.sender_id() == 0: # controller
|
|
if message_type == 0:
|
|
return f"ACK {Message.human_readable_type(self.payload[1], self.payload[2])} {self.payload[2]}"
|
|
elif message_type == 1:
|
|
return "HELLO"
|
|
elif message_type == 2:
|
|
return "START " + self._parse_state_update()
|
|
elif message_type == 3:
|
|
return "STATE " + self._parse_state_update()
|
|
elif message_type == 4:
|
|
return "SOLVED " + self._parse_state_update()
|
|
elif message_type == 5:
|
|
return "TIMEOUT " + self._parse_state_update()
|
|
elif message_type == 6:
|
|
return "STRIKEOUT " + self._parse_state_update()
|
|
elif message_type == 7:
|
|
return "INFO START"
|
|
elif sender_type == 0b01: # puzzle
|
|
if message_type == 0:
|
|
return "REGISTER"
|
|
elif message_type == 1:
|
|
return f"STRIKE {self.payload[1]}"
|
|
elif message_type == 2:
|
|
return f"SOLVED"
|
|
elif sender_type == 0b10: # needy
|
|
if message_type == 0:
|
|
return "REGISTER"
|
|
elif message_type == 1:
|
|
return f"STRIKE {self.payload[1]}"
|
|
elif sender_type == 0b00 and self.sender_id() != 0: # info
|
|
if message_type == 0:
|
|
return "FREE INFO MESSAGE"
|
|
|
|
except:
|
|
print("Unexpected error: ", sys.exc_info()[0])
|
|
return "PARSE ERROR"
|
|
|
|
def serialize(self):
|
|
return {
|
|
'time': self.readable_time(),
|
|
'parsed': self.parse_message(),
|
|
'pretty_raw_sender_id': f'{self.priority_bit():01b} {self.sender_type():02b} {self.sender_id():08b}',
|
|
'raw_message': f"{self.payload.hex(' ')}",
|
|
'human_readable_type': Message.human_readable_type(self.sender_type(), self.sender_id()),
|
|
'sender_id': self.sender_id(),
|
|
'internal_id': self.internal_id
|
|
}
|
|
|
|
|
|
def serial_reader(shared_data):
|
|
with serial.Serial('/dev/ttyACM0', 115200, timeout=10) as ser:
|
|
while True:
|
|
line = ser.readline()
|
|
print(line.decode('ascii'))
|
|
if line.startswith(b"message"):
|
|
line = line.decode('ascii')
|
|
line = line.strip()
|
|
parts = line.split(' ')
|
|
sender = int(parts[1])
|
|
message = bytes(int(p) for p in parts[2:])
|
|
received = Message(message, sender, datetime.now(), len(shared_data.messages))
|
|
shared_data.messages.append(received.serialize())
|
|
shared_data.last_message_index += 1
|
|
print(shared_data.last_message_index)
|
|
|
|
@app.route('/')
|
|
def index():
|
|
return send_file('static/index.html')
|
|
|
|
@app.route('/<last_received>/api.json')
|
|
def api(last_received):
|
|
last_received = int(last_received)
|
|
if last_received < shared_data.last_message_index - len(shared_data.messages):
|
|
return jsonify({"server_id": server_id, "newest_msg": shared_data.last_message_index, "messages": list(shared_data.messages)})
|
|
else:
|
|
return jsonify({"server_id": server_id, "newest_msg": shared_data.last_message_index, "messages": list(shared_data.messages)[len(shared_data.messages) - (shared_data.last_message_index - last_received):]})
|
|
|
|
if __name__ == '__main__':
|
|
thread = Thread(target=serial_reader, args=(shared_data, ))
|
|
thread.start()
|
|
app.run(debug=False, host='0.0.0.0')
|