#!/usr/bin/env python3
"""Quick word statistics analyzer - counts words, chars, lines in text files."""

import sys
from collections import Counter

def analyze_text(text):
    words = text.split()
    chars = len(text)
    lines = text.count('\n') + 1 if text else 0
    word_count = len(words)
    char_count = len(text)
    unique_words = len(set(w.lower().strip('.,!?;:') for w in words))
    most_common = Counter(w.lower().strip('.,!?;:') for w in words).most_common(5)
    return {
        'lines': lines,
        'words': word_count,
        'characters': char_count,
        'unique_words': unique_words,
        'most_common': most_common
    }

def main():
    if len(sys.argv) < 2:
        print("Usage: python word_stats.py <file>")
        sys.exit(1)
    
    with open(sys.argv[1], 'r') as f:
        text = f.read()
    
    stats = analyze_text(text)
    print(f"Lines: {stats['lines']}")
    print(f"Words: {stats['words']}")
    print(f"Characters: {stats['characters']}")
    print(f"Unique words: {stats['unique_words']}")
    print(f"Most common: {stats['most_common']}")

if __name__ == '__main__':
    main()