import sys

def check_ai_client(path):
 with open(path, 'r', encoding='utf-8') as f:
  lines = f.readlines()

 imports = []
 internal_imports = []
 for i, line in enumerate(lines):
  stripped = line.strip()
  if stripped.startswith('import ') or stripped.startswith('from '):
   if line.startswith('import ') or line.startswith('from '):
    imports.append((i+1, stripped))
   else:
    internal_imports.append((i+1, stripped, line.split(stripped[0])[0]))

 print("--- Top-level imports ---")
 for lno, imp in imports:
  print(f"{lno}: {imp}")

 print("\n--- Internal imports ---")
 for lno, imp, indent in internal_imports:
  print(f"{lno}: [{len(indent)} spaces] {imp}")

 print("\n--- Duplicate top-level imports ---")
 seen = set()
 for lno, imp in imports:
  if imp in seen:
   print(f"Duplicate: {lno}: {imp}")
  seen.add(imp)

 print("\n--- Indentation check (first non-space character not at index 0 or multiple of 1) ---")
 # Actually, if it's 1-space indentation, any number of spaces is valid at the start?
 # No, if it's 1-space indentation, it means each level is 1 space.
 # So 0, 1, 2, 3... are all valid.
 # BUT if someone used 4 spaces for 1 level, that's wrong.
 # The only way to know is to see the context.
 # But the prompt says "Ensure the entire file uses exactly 1-space indentation."
 # This usually means convert 4-space to 1-space.
 
 # Let's just check for lines starting with 4 spaces that might be 1 level.
 # Or better, look for any line where indentation is not exactly 1 space more than parent.
 # That's hard without parsing.
 
 # Let's look for common 4-space patterns.
 four_spaces = 0
 for i, line in enumerate(lines):
  if line.startswith('    ') and not line.startswith('     '):
   four_spaces += 1
 print(f"Lines starting with exactly 4 spaces: {four_spaces}")

if __name__ == "__main__":
 check_ai_client('src/ai_client.py')