from __future__ import annotations

from pathlib import Path

from openpyxl import load_workbook

from app.pipeline.mapping import FIXED_REPORT_COLUMNS
from app.pipeline.report import ReportRow, write_report


def test_write_report_streaming_preserves_header_and_formats(tmp_path: Path) -> None:
    destination = tmp_path / "report.xlsx"
    rows = [
        ReportRow(
            file_name="SKO115FZ_01_123456789_20260616_X00001.xml",
            record_id="RID-1",
            operation_index=1,
            operation_fields={"СуммаОпер": "100.50", "ДатаОпер": "2026-06-16"},
            participant_fields={},
        )
    ]

    write_report(rows, destination)

    workbook = load_workbook(destination)
    sheet = workbook["Отчет"]
    headers = [cell.value for cell in sheet[1]]
    assert headers == list(FIXED_REPORT_COLUMNS)
    row_values = [
        sheet.cell(row=2, column=index).value
        for index in range(1, len(FIXED_REPORT_COLUMNS) + 1)
    ]
    assert "SKO115FZ_01_123456789_20260616_X00001.xml" in row_values

    date_col_idx = next(
        (
            index
            for index, column in enumerate(FIXED_REPORT_COLUMNS, start=1)
            if "Дата" in column
        ),
        None,
    )
    if date_col_idx is not None:
        assert sheet.cell(row=2, column=date_col_idx).number_format == "DD.MM.YYYY"

    sum_col_idx = next(
        (
            index
            for index, column in enumerate(FIXED_REPORT_COLUMNS, start=1)
            if "Сумм" in column or "Сумма" in column
        ),
        None,
    )
    if sum_col_idx is not None:
        assert sheet.cell(row=2, column=sum_col_idx).number_format == "#,##0.00"