85 lines
3.2 KiB
Python
85 lines
3.2 KiB
Python
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from dataclasses import dataclass
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from datetime import datetime
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@dataclass
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class Message:
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payload: bytes
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received_from: int
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received_at: datetime
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def readable_time(self):
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return self.received_at.strftime('%H:%M:%S')
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def priority_bit(self):
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return (self.received_from >> 10) & 0b1
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def sender_type(self):
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return (self.received_from >> 8) & 0b11
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def sender_id(self):
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return (self.received_from >> 0) & 0b1111_1111
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@staticmethod
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def human_readable_type(sender_type, sender_id):
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return [('controller' if sender_id == 0 else 'info'), 'puzzle', 'needy', 'RESERVED TYPE'][sender_type]
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def _parse_state_update(self):
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timeleft = self.payload[1] << 0x18 | self.payload[2] << 0x10 | self.payload[3] << 0x08 | self.payload[4]
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strikes = self.payload[5]
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max_strikes = self.payload[6]
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solved_puzzle_modules = self.payload[7]
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return f'{timeleft/1000:3.2f} {strikes:02}/{max_strikes:02} [{solved_puzzle_modules:02}]'
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def parse_message(self):
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sender_type = self.sender_type()
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message_type = self.payload[0]
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try:
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if sender_type == 0b00 and self.sender_id() == 0: # controller
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if message_type == 0:
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return f"ACK {Message.human_readable_type(self.payload[1], self.payload[2])} {self.payload[2]}"
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elif message_type == 1:
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return "HELLO"
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elif message_type == 2:
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return "START " + self._parse_state_update()
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elif message_type == 3:
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return "STATE " + self._parse_state_update()
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elif message_type == 4:
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return "SOLVED " + self._parse_state_update()
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elif message_type == 5:
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return "TIMEOUT " + self._parse_state_update()
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elif message_type == 6:
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return "STRIKEOUT " + self._parse_state_update()
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elif message_type == 7:
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return "INFO START"
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elif sender_type == 0b01: # puzzle
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if message_type == 0:
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return "REGISTER"
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elif message_type == 1:
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return f"STRIKE {self.payload[1]}"
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elif message_type == 2:
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return f"SOLVED"
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elif sender_type == 0b10: # needy
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if message_type == 0:
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return "REGISTER"
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elif message_type == 1:
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return f"STRIKE {self.payload[1]}"
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elif sender_type == 0b00 and self.sender_id() != 0: # info
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if message_type == 0:
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return "FREE INFO MESSAGE"
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except:
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print("Unexpected error: ", sys.exc_info()[0])
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return "PARSE ERROR"
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def serialize(self):
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return {
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'time': self.readable_time(),
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'parsed': self.parse_message(),
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'pretty_raw_sender_id': f'{self.priority_bit():01b} {self.sender_type():02b} {self.sender_id():08b}',
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'raw_message': f"{self.payload.hex(' ')}",
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'human_readable_type': Message.human_readable_type(self.sender_type(), self.sender_id()),
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'sender_id': self.sender_id()
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}
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