import sys
sys.path.insert(0, 'bin')
from stuck_check import is_stuck

def test_not_stuck_with_different_files():
    entries = [
        {'project': 'x', 'files_changed': ['a.go']},
        {'project': 'x', 'files_changed': ['b.go']},
        {'project': 'x', 'files_changed': ['c.go']},
    ]
    assert is_stuck('x', entries) is False

def test_stuck_when_same_files_3_times():
    entries = [
        {'project': 'x', 'files_changed': ['a.go', 'b.go']},
        {'project': 'x', 'files_changed': ['a.go', 'b.go']},
        {'project': 'x', 'files_changed': ['a.go', 'b.go']},
    ]
    assert is_stuck('x', entries) is True

def test_not_stuck_with_fewer_than_3_entries():
    entries = [
        {'project': 'x', 'files_changed': ['a.go']},
        {'project': 'x', 'files_changed': ['a.go']},
    ]
    assert is_stuck('x', entries) is False

def test_only_checks_matching_project():
    entries = [
        {'project': 'y', 'files_changed': ['a.go']},
        {'project': 'y', 'files_changed': ['a.go']},
        {'project': 'y', 'files_changed': ['a.go']},
        {'project': 'x', 'files_changed': ['a.go']},
        {'project': 'x', 'files_changed': ['a.go']},
    ]
    assert is_stuck('x', entries) is False  # only 2 entries for x

def test_not_stuck_when_files_empty():
    """Empty file sets don't count as stuck — agent may not have changed anything."""
    entries = [
        {'project': 'x', 'files_changed': []},
        {'project': 'x', 'files_changed': []},
        {'project': 'x', 'files_changed': []},
    ]
    assert is_stuck('x', entries) is False

def test_order_matters_only_last_3():
    """Only the last 3 entries matter."""
    entries = [
        {'project': 'x', 'files_changed': ['a.go']},
        {'project': 'x', 'files_changed': ['a.go']},
        {'project': 'x', 'files_changed': ['a.go']},
        {'project': 'x', 'files_changed': ['b.go']},  # most recent: different
    ]
    assert is_stuck('x', entries) is False