"""parse_export_sections для analytics export."""

from __future__ import annotations

import unittest

from app.services.analytics.export_context import net_rub_display, net_rub_dominant_hint
from app.services.analytics.pdf_export import (
    _COMPARISON_COL_WIDTHS,
    _DETAIL_COL_PCT,
    _DETAIL_COL_WIDTHS,
    _USABLE_WIDTH,
    _format_rub,
    _format_rub_plain,
    _widths_from_percentages,
)
from app.services.analytics.export_sections import (
    export_filename_base,
    parse_export_sections,
)


class ExportSectionsTests(unittest.TestCase):
    def test_all_by_default(self) -> None:
        self.assertEqual(
            parse_export_sections(None),
            frozenset({"summary", "comparison", "reports"}),
        )
        self.assertEqual(parse_export_sections("all"), parse_export_sections(None))

    def test_single_section(self) -> None:
        self.assertEqual(parse_export_sections("summary"), frozenset({"summary"}))

    def test_filename_all(self) -> None:
        name = export_filename_base(
            date_from="2026-06-01",
            date_to="2026-06-07",
            sections=frozenset({"summary", "comparison", "reports"}),
        )
        self.assertEqual(name, "otchety_2026-06-01_2026-06-07")

    def test_filename_summary(self) -> None:
        name = export_filename_base(
            date_from="2026-06-01",
            date_to="2026-06-07",
            sections=frozenset({"summary"}),
        )
        self.assertEqual(name, "itogi_2026-06-01_2026-06-07")

    def test_net_rub_display_without_minus(self) -> None:
        self.assertEqual(net_rub_display({"netRub": -23480.99}), 23480.99)
        self.assertEqual(net_rub_display({"netRub": 1500.0}), 1500.0)

    def test_net_rub_dominant_hint(self) -> None:
        self.assertIn("надоев", net_rub_dominant_hint({"dominantIssue": "underload"}))
        self.assertIn("перерасход", net_rub_dominant_hint({"dominantIssue": "overload"}))

    def test_pdf_rub_format_without_sign_or_ruble_symbol(self) -> None:
        self.assertEqual(_format_rub(-23480.99), "23 481 руб.")
        self.assertNotIn("₽", _format_rub(1500))
        self.assertEqual(_format_rub_plain(-10154), "10 154")

    def test_pdf_table_widths_fit_landscape_page(self) -> None:
        comparison_total = sum(_COMPARISON_COL_WIDTHS)
        detail_total = sum(_DETAIL_COL_WIDTHS)
        self.assertLessEqual(comparison_total, _USABLE_WIDTH + 0.1)
        self.assertLessEqual(detail_total, _USABLE_WIDTH + 0.1)
        self.assertEqual(sum(_DETAIL_COL_PCT), 100)
        self.assertAlmostEqual(detail_total, _USABLE_WIDTH, places=1)


if __name__ == "__main__":
    unittest.main()