import pandas as pd
import pytest

from server import impact
from ui.blocks import (
    _count_conflicts,
    _load_sample,
    _on_analyze,
    _on_make_ics,
    _refresh,
    build_demo,
)


@pytest.fixture(autouse=True)
def _clean_impact():
    impact.reset()
    yield
    impact.reset()


def test_build_demo_constructs():
    demo = build_demo()
    assert demo.__class__.__name__ == "Blocks"


def test_analyze_generator_shape_and_export():
    last = None
    for out in _on_analyze("Mom: dinner Sunday 6pm", None, None):
        assert len(out) == 5  # thinking, table, plan_md, reply, status
        last = out
    _, rows, _, reply, _ = last
    assert rows and rows[0][0]
    assert reply
    path, msg = _on_make_ics(rows)
    assert path and "Wrote" in msg


def test_export_records_capture():
    *_, last = list(_on_analyze("Mom: dinner Sunday 6pm", None, None))
    rows = last[1]
    before = impact.this_week()["events_captured"]
    _on_make_ics(rows)
    assert impact.this_week()["events_captured"] == before + len(rows)


def test_count_conflicts_reads_markdown():
    md = "**Conflicts:**\n- ⚠️ event #0 **overlap** vs Dentist\n- ⚠️ event #1 **tight** vs Standup"
    assert _count_conflicts(md) == 2
    assert _count_conflicts("_No conflicts or clarifications._") == 0


def test_sample_button_yields_events():
    thread = _load_sample()
    assert thread and isinstance(thread, str)
    *_, last = list(_on_analyze(thread, None, None))
    rows = last[1]
    assert rows and rows[0][0]  # the sample produces at least one event in stub mode


def test_refresh_returns_chart_and_impact():
    out = _refresh()
    assert len(out) == 6
    assert isinstance(out[3], pd.DataFrame)
    assert list(out[3].columns) == ["stage", "count"]
    assert "captured" in out[5]  # the This-week impact panel HTML