#!/usr/bin/env python3
import re

with open('/home/yanghao05/Workspace/gochat/internal/router/router.go') as f:
    content = f.read()

all_params = re.findall(r':(\w+)', content)
param_counts = {}
for p in all_params:
    param_counts[p] = param_counts.get(p, 0) + 1

for p, count in sorted(param_counts.items(), key=lambda x: -x[1]):
    print(f"  :{p} → {count} uses")

print(f"\nTotal unique param names: {len(param_counts)}")