"""Eksport raportu do Excela — tabela robocza (DAN-23/PRE-10)."""
import io
import pathlib

from openpyxl import load_workbook

from app.report_export import HEADERS, report_to_xlsx

APP = pathlib.Path(__file__).resolve().parents[1] / "app"
MAIN = (APP / "main.py").read_text(encoding="utf-8")
INTERPRET = (APP / "templates" / "interpret.html").read_text(encoding="utf-8")


def _report() -> dict:
    return {"engine": "own", "objects": [
        {"name": "Sun", "facets": [
            {"type": "sign", "label": "w znaku Cancer", "token": "[Su + Can", "samples": [
                {"significator": "Su Can", "expanded": "Słońce w Raku", "effect": "opiekuńczy"},
                {"significator": "Su Can h10", "expanded": "Słońce w Raku, 10 dom", "effect": "kariera 50% publiczna"}]},
            {"type": "house", "label": "w 10 domu", "token": "10 H.", "samples": [
                {"significator": "Su h10", "expanded": "Słońce w 10 domu", "effect": "ambicja"}]}]},
        {"name": "Moon", "facets": [
            {"type": "aspect", "label": "trygon z Mars", "token": "[Mo tri [Ma", "samples": [
                {"significator": "Mo tri Ma", "expanded": "Księżyc trygon Mars", "effect": "energia"}]}]},
    ]}


def _load(report):
    return load_workbook(io.BytesIO(report_to_xlsx(report))).active


def test_header_row_matches_columns():
    ws = _load(_report())
    assert [c.value for c in ws[1]] == HEADERS


def test_one_row_per_sample_flattened():
    """Zagnieżdżenie obiekt→fasety→próbki rozwijamy na płaskie wiersze."""
    ws = _load(_report())
    assert ws.max_row == 1 + 4                       # nagłówek + 4 dopasowania


def test_row_carries_object_facet_and_effect():
    ws = _load(_report())
    vals = [[c.value for c in row] for row in ws.iter_rows(min_row=2)]
    first = vals[0]
    assert first[0] == "Sun" and first[1] == "w znaku Cancer" and first[2] == "sign"
    assert first[6] == "opiekuńczy"                  # kolumna „Opis / efekt"
    assert any("kariera 50% publiczna" in (r[6] or "") for r in vals)   # % nie psuje niczego


def test_autofilter_and_frozen_header_for_working_table():
    """Filtrowanie/sortowanie od razu w Excelu (PRE-10)."""
    ws = _load(_report())
    assert ws.auto_filter.ref == "A1:G5"
    assert ws.freeze_panes == "A2"


def test_empty_report_is_safe():
    ws = _load({"objects": []})
    assert [c.value for c in ws[1]] == HEADERS
    assert ws.max_row == 1                            # sam nagłówek, bez wyjątku
    assert ws.auto_filter.ref == "A1:G1"


# ── wpięcie w UI ──

def test_interpret_has_export_button():
    assert 'name="action" value="export"' in INTERPRET


def test_handler_returns_xlsx_download():
    assert 'if action == "export":' in MAIN
    assert "report_to_xlsx" in MAIN
    assert "spreadsheetml.sheet" in MAIN              # media type .xlsx
    assert 'filename="interpretacje.xlsx"' in MAIN