import re
import struct

# Helper to read uint16 from bytes
def read_u16_le(data: bytes, offset: int) -> int:
    if offset + 2 > len(data):
        return None
    return struct.unpack_from('<H', data, offset)[0]

# Read the log file
with open("/home/prathiyuman/Prathiyuman/ContecMonitor/fiveparaminte-main/hl7_forwarder.log", "r") as f:
    content = f.read()

# Find all occurrences of Hex head logging
hex_heads = re.findall(r"Raw hex \(first 32 bytes\): ([0-9a-fA-F]+)", content)
warnings = re.findall(r"unrecognized. Len: (\d+), Hex head: ([0-9a-fA-F]+)", content)

print(f"Found {len(hex_heads)} hex heads from server logging")
print(f"Found {len(warnings)} unrecognized packet hex heads")

# Also find all data packets printed or parsed in logs
# Let's inspect some of the unrecognized packets of size 56 and 45
print("\nSample of Len 56 packets:")
count = 0
for len_str, hex_str in warnings:
    if len_str == "56":
        print(f"  {hex_str}")
        count += 1
        if count >= 5:
            break

print("\nSample of Len 45 packets:")
count = 0
for len_str, hex_str in warnings:
    if len_str == "45":
        print(f"  {hex_str}")
        count += 1
        if count >= 5:
            break