"""Allow only the upstream QUERY parametrization explicitly added by the frozen Flask gold."""
from collections import Counter
import hashlib
from pathlib import Path


def approved_gold_addition(task, label, baseline, fixed, inputs):
    added=Counter(fixed)-Counter(baseline);removed=Counter(baseline)-Counter(fixed)
    case='tests/test_basic.py::test_method_route[query]'
    if task['instance_id']!='backend-flask-6133' or label!='flask-pass_to_pass' or removed or added!=Counter({case:1}):
        return None
    reference=next(r for r in task['repositories'] if r['key']=='flask')['gold_patch']
    data=(Path(inputs)/reference['path']).read_bytes()
    if hashlib.sha256(data).hexdigest()!=reference['sha256']:
        return None
    line=b'+@pytest.mark.parametrize("method", ["get", "query", "post", "put", "delete", "patch"])'
    if line not in data.splitlines():
        return None
    return {'kind':'frozen-gold-added-upstream-test','added_cases':[case],'removed_cases':[],
            'gold_patch':reference,'common_case_count':len(baseline),
            'reason':'The unchanged frozen gold adds the QUERY parametrization in an already selected P2P file.'}