"""Operator feedback distinguishes read failures and partially committed saves."""
import pytest
from streamlit.testing.v1 import AppTest

from jarca_ledger_mcp import service as s
from jarca_ledger_mcp.adapters.streamlit import settlement_gateway
from jarca_ledger_mcp.db import init_db


def panel(monkeypatch, path):
    monkeypatch.setenv('JARCA_LEDGER_DB_PATH', str(path))
    monkeypatch.setattr('dashboard.authentication.get_authenticated_actor', lambda: 'fixture-operator')
    app = AppTest.from_string(f'from dashboard.page_views.settlement_drafts import render_settlement_drafts\nrender_settlement_drafts(db_path={str(path)!r})\n')
    app.session_state["authenticated_actor"] = "fixture-operator"
    app = app.run(timeout=20)
    assert not app.exception
    control(app.button, '정산 시작').click().run(timeout=20)
    control(app.button, '초안 만들기').click().run(timeout=20)
    assert not app.exception
    return app


def control(elements, label):
    return next(element for element in elements if element.label == label)


def test_panel_shows_safe_error_when_draft_listing_fails(tmp_path, monkeypatch):
    path = tmp_path / 'missing.sqlite3'
    monkeypatch.setattr(settlement_gateway, 'list_settlement_drafts', lambda *args, **kwargs: {
        'success': False, 'error_code': 'storage_error', 'message': 'SYNTHETIC_PRIVATE_DIAGNOSTIC',
    })
    app = panel(monkeypatch, path)
    assert app.error and 'storage_error' in ' '.join(element.value for element in app.error)
    assert not any('초안이 없습니다' in element.value for element in app.info)
    visible = ' '.join(element.value for elements in (app.error, app.info, app.caption) for element in elements)
    assert 'SYNTHETIC_PRIVATE_DIAGNOSTIC' not in visible
    assert not path.exists()


def test_panel_reports_partial_save_when_item_update_fails(tmp_path, monkeypatch):
    path = str(tmp_path / 'partial.sqlite3')
    init_db(path)
    account = s.create_ledger_account('Synthetic cash', db_path=path)['account']['id']
    assert s.register_account_valuation(account, '2026-09-30', 10, verification_status='verified',
        idempotency_key='synthetic-value', db_path=path)['success']
    app = panel(monkeypatch, path)
    control(app.button, '검토 / 새로고침 대상').click().run(timeout=20)
    control(app.button, '검토 / 새로고침 대상').click().run(timeout=20)
    draft = s.list_settlement_drafts('2026-09', db_path=path)['drafts'][0]
    review_key = f"review_result_{draft['id']}"
    assert app.session_state[review_key]['success']
    control(app.text_input, '초안 메모 저장').set_value('Synthetic persisted memo')
    control(app.text_input, '대상 ID').set_value('synthetic-nonexistent-target')
    control(app.button, '저장 / 지정 / 포함·제외').click().run(timeout=20)
    assert not app.exception
    current = s.get_settlement_draft(draft['id'], db_path=path)
    assert current['draft']['memo'] == 'Synthetic persisted memo'
    assert current['draft']['version'] == draft['version'] + 1
    assert len(current['items']) == 1 and current['items'][0]['source_id'] == account
    assert app.error
    assert any('메모는 저장되었지만 항목 변경은 실패했습니다' in element.value for element in app.warning)
    with pytest.raises(KeyError):
        app.session_state[review_key]
    assert not any(element.label in {'검토 결과 승인', '최종 마감'} for element in app.button)