"""Summary (Finance pack) workbook: structure + that the key figures land in the right cells."""
from __future__ import annotations

import openpyxl

from app.core.summary_export import export_summary_workbook

PERIODS = ["01–10 Jan 2026", "11–20 Jan 2026"]

SUMMARY = {
    "available": True, "marketplace": "USA", "currency": "USD",
    "reporting_month": "2026-01", "month_end": "2026-01-31",
    "period_labels": PERIODS,
    "opening_balance": 10_868_838.70,
    "components": [
        {"key": "product_sales", "label": "Order / product sales", "group": "revenue",
         "values": [100.0, 200.0], "total": 300.0},
        {"key": "refunds", "label": "Refunds", "group": "revenue",
         "values": [-10.0, -20.0], "total": -30.0},
        {"key": "fba_fees", "label": "FBA fees", "group": "fee",
         "values": [-5.0, -15.0], "total": -20.0},
        {"key": "transfers", "label": "Transfer / disbursements", "group": "payout",
         "values": [-50.0, -60.0], "total": -110.0},
    ],
    "gross_revenue": 300.0,
    "net_revenue": 19_038_659.52,
    "disbursements": -18_797_065.22,
    "in_transit_payouts": -9_555_841.69,
    "closing_receivable": 11_110_433.00,
    "finance_closing": 11_110_433.00,
    "difference": 0.0,
    "status": "matched",
    "verified_by": "A. Controller",
    "verified_at": "2026-02-02T10:00:00",
    "ledger": [
        {"period": "Opening", "description": "Previous month closing balance",
         "debit": None, "credit": None, "balance": 10_868_838.70},
        {"period": PERIODS[0], "description": "Net revenue (accrued)",
         "debit": 4_421_131.76, "credit": None, "balance": 15_289_970.46},
        {"period": "Settlement", "description": "Amazon payout received",
         "debit": None, "credit": 18_797_065.22, "balance": 11_110_433.00},
        {"period": "Closing", "description": "Month-end receivable",
         "debit": None, "credit": None, "balance": 11_110_433.00},
    ],
}

CONTROL = {
    "available": True, "tolerance": 1.0,
    "rows": [
        {"key": "gross_sales", "label": "Gross Sales", "critical": False,
         "dashboard": 47_117_934.96, "finance": 47_117_934.96, "difference": 0.0, "status": "matched"},
        {"key": "closing_receivable", "label": "Closing Receivable", "critical": True,
         "dashboard": 11_110_433.0, "finance": 11_110_433.0, "difference": 0.0, "status": "matched"},
    ],
    "verified_by": "A. Controller", "verified_at": "2026-02-02T10:00:00", "comment": "Tied to control sheet.",
}

JOURNAL = {
    "periods": [{"label": p} for p in PERIODS],
    "lines": [{"key": "Sales", "gl_account": "Sales:All Platforms Sales:Amazon USA",
               "values": [1.0, 2.0], "total": 3.0}],
    "receivable": {"key": "Receivable", "gl_account": "Accounts Receivable:Amazon USA",
                   "values": [4.0, 5.0], "total": 9.0},
}


def _build(tmp_path):
    out = str(tmp_path / "summary.xlsx")
    export_summary_workbook(out, SUMMARY, CONTROL, JOURNAL,
                            {"session_name": "Jan close", "entry_no": "22283",
                             "files": [{"filename": "a.xlsx", "rows": 10, "dates": "..", "sha256": "abc"}]})
    return openpyxl.load_workbook(out)


def _cells(ws):
    return [[ws.cell(row=r, column=c).value for c in range(1, ws.max_column + 1)]
            for r in range(1, ws.max_row + 1)]


def test_sheets_present(tmp_path):
    wb = _build(tmp_path)
    assert wb.sheetnames == ["Finance Summary", "AR Ledger", "Reconciliation Control",
                             "Category Totals", "Audit Trail"]


def test_finance_summary_key_figures(tmp_path):
    wb = _build(tmp_path)
    flat = [v for row in _cells(wb["Finance Summary"]) for v in row]
    # closing calculation + variance land in the sheet
    assert 11_110_433.00 in flat
    assert 19_038_659.52 in flat
    assert 10_868_838.70 in flat
    assert -18_797_065.22 in flat
    assert "MATCHED" in flat
    # revenue/fee component labels rendered
    assert "Order / product sales" in flat and "FBA fees" in flat


def test_ledger_and_control_sheets(tmp_path):
    wb = _build(tmp_path)
    ledger = [v for row in _cells(wb["AR Ledger"]) for v in row]
    assert "Opening" in ledger and "Closing" in ledger
    assert 11_110_433.00 in ledger and 18_797_065.22 in ledger

    ctrl = [v for row in _cells(wb["Reconciliation Control"]) for v in row]
    assert "Closing Receivable" in ctrl and "MATCHED" in ctrl
    assert "A. Controller" in ctrl


def test_category_totals_and_audit(tmp_path):
    wb = _build(tmp_path)
    cats = [v for row in _cells(wb["Category Totals"]) for v in row]
    assert "Sales" in cats and "Receivable" in cats
    audit = [v for row in _cells(wb["Audit Trail"]) for v in row]
    assert "22283" in audit and "Jan close" in audit