"""Rendering-only briefs must preserve existing data on incomplete API snapshots."""
from unittest.mock import Mock

import pytest
import sys
from pathlib import Path
sys.path.insert(0, str(Path(__file__).resolve().parents[1] / "scripts"))
import consistency_check as owner


def responses(base, path, params=None, **kwargs):
    if path.startswith('/repos/'):
        return {'id': 'repo-1', 'domain_slug': 'infotech'}
    return []


def test_render_does_not_commit_and_timestamp_only_retry_is_unchanged(tmp_path, monkeypatch):
    monkeypatch.setattr(owner, '_api_get', responses)
    commit = Mock(side_effect=AssertionError('Git operations forbidden'))
    monkeypatch.setattr(owner, '_git_commit_writeback', commit)
    assert owner._write_custodian_brief('unused', 'demo', str(tmp_path), commit=False, strict=True)
    before = (tmp_path / '.custodian-brief.md').read_bytes()
    assert not owner._write_custodian_brief('unused', 'demo', str(tmp_path), commit=False, strict=True)
    assert (tmp_path / '.custodian-brief.md').read_bytes() == before
    commit.assert_not_called()


@pytest.mark.parametrize('failed_path', ['/repos/demo', '/workplans', '/repo-goals', '/messages', '/tasks'])
@pytest.mark.parametrize('failure', [None, {'_error': 'offline'}, 'malformed'])
def test_partial_snapshot_preserves_existing_brief(tmp_path, monkeypatch, failed_path, failure):
    def read(base, path, params=None, **kwargs):
        if path == failed_path:
            return failure
        if path == '/workplans':
            return [{'id': 'wp-1', 'title': 'Waiting'}]
        return responses(base, path, params, **kwargs)
    monkeypatch.setattr(owner, '_api_get', read)
    path = tmp_path / '.custodian-brief.md'; path.write_text('preserved')
    with pytest.raises(ValueError, match='unavailable or malformed'):
        owner._write_custodian_brief('unused', 'demo', str(tmp_path), commit=False, strict=True)
    assert path.read_text() == 'preserved'


def test_check_has_no_write(tmp_path, monkeypatch):
    monkeypatch.setattr(owner, '_api_get', responses)
    path = tmp_path / '.custodian-brief.md'; path.write_text('preserved')
    with pytest.raises(ValueError, match='differs'):
        owner._write_custodian_brief('unused', 'demo', str(tmp_path), commit=False, strict=True, check=True)
    assert path.read_text() == 'preserved'