import json

from scripts.adapters.radon import parse_radon_output


def test_parses_high_complexity_as_medium():
    payload = {
        "src/foo.py": [
            {"type": "function", "name": "bar", "lineno": 10, "endline": 25, "complexity": 12, "rank": "C"}
        ]
    }
    findings = parse_radon_output(json.dumps(payload))
    assert len(findings) == 1
    f = findings[0]
    assert f.severity == "medium"
    assert f.rule_id == "radon:cc=12"
    assert f.file == "src/foo.py"
    assert f.line == 10
    assert f.end_line == 25


def test_very_high_complexity_is_high():
    payload = {
        "src/foo.py": [
            {"type": "function", "name": "baz", "lineno": 30, "endline": 80, "complexity": 22, "rank": "E"}
        ]
    }
    findings = parse_radon_output(json.dumps(payload))
    assert findings[0].severity == "high"


def test_low_complexity_is_skipped():
    payload = {
        "src/foo.py": [
            {"type": "function", "name": "simple", "lineno": 1, "endline": 5, "complexity": 5, "rank": "A"}
        ]
    }
    assert parse_radon_output(json.dumps(payload)) == []


def test_multiple_files():
    payload = {
        "src/a.py": [
            {"type": "function", "name": "fn_a", "lineno": 1, "endline": 20, "complexity": 15, "rank": "C"}
        ],
        "src/b.py": [
            {"type": "function", "name": "fn_b", "lineno": 5, "endline": 50, "complexity": 25, "rank": "E"}
        ],
    }
    findings = parse_radon_output(json.dumps(payload))
    assert len(findings) == 2
    files = {f.file for f in findings}
    assert files == {"src/a.py", "src/b.py"}


def test_empty_input():
    assert parse_radon_output("") == []
    assert parse_radon_output("not json") == []