#!/usr/bin/env python3
import re

def analyze_coverage():
    files = {}
    current_file = None
    
    with open('coverage/lcov.info', 'r', encoding='utf-8') as f:
        lines = f.readlines()
    
    i = 0
    while i < len(lines):
        line = lines[i].strip()
        if line.startswith('SF:'):
            current_file = line[3:]
            files[current_file] = {'total': 0, 'covered': 0}
            i += 1
        elif line.startswith('LF:') and current_file:
            files[current_file]['total'] = int(line[3:])
            i += 1
        elif line.startswith('LH:') and current_file:
            files[current_file]['covered'] = int(line[3:])
            i += 1
        else:
            i += 1
    
    # Filter out generated files
    filtered = []
    for f, d in files.items():
        if not f.endswith('.g.dart') and not 'generated' in f.lower() and not f.endswith('l10n.dart'):
            filtered.append((f, d))
    
    # Find files with less than 50% coverage
    low_coverage = []
    for f, d in filtered:
        if d['total'] > 0:
            pct = d['covered']/d['total']*100
            if pct < 50:
                low_coverage.append((f, d))
    
    # Sort by coverage percentage (lowest first)
    sorted_files = sorted(
        low_coverage, 
        key=lambda x: (x[1]['covered']/x[1]['total']*100 if x[1]['total'] > 0 else 0)
    )
    
    print('Files with less than 50% coverage:')
    print('=' * 80)
    for f, d in sorted_files[:50]:
        pct = d['covered']/d['total']*100
        print(f'{pct:6.1f}% ({d["covered"]:4d}/{d["total"]:4d}) - {f}')

if __name__ == '__main__':
    analyze_coverage()