from __future__ import annotations

from typing import Any

from openpyxl.cell.rich_text import CellRichText, TextBlock
from openpyxl.cell.text import InlineFont
from openpyxl.formatting.rule import CellIsRule  # type: ignore[reportUnknownVariableType]
from openpyxl.styles import Color, Font

from domain.magicplan.models import Door, Plan, Room, Window

_DATA_START_ROW = 6
_MAX_ROWS = 50
_Y_CF_RANGE = f"Y{_DATA_START_ROW}:Y{_DATA_START_ROW + _MAX_ROWS - 1}"
_Y_THRESHOLD = 7600
_Y_HEADER = CellRichText(
    TextBlock(InlineFont(b=True, sz=11, rFont="Aptos Narrow"), "Area (mm2)\n"),
    TextBlock(InlineFont(b=True, sz=11, color=Color(rgb="FF0000"), rFont="Aptos Narrow"), "<"),
    TextBlock(InlineFont(b=True, sz=11, rFont="Aptos Narrow"), "  7600  "),
    TextBlock(InlineFont(b=True, sz=11, color=Color(rgb="196B24"), rFont="Aptos Narrow"), "<"),
)


def _apply_column_y_formatting(sheet: Any) -> None:
    sheet.conditional_formatting.add(
        _Y_CF_RANGE,
        CellIsRule(operator="lessThan", formula=[str(_Y_THRESHOLD)], font=Font(color=Color(rgb="FF0000"))),
    )
    sheet.conditional_formatting.add(
        _Y_CF_RANGE,
        CellIsRule(operator="greaterThan", formula=[str(_Y_THRESHOLD)], font=Font(color=Color(rgb="196B24"))),
    )
    sheet["Y3"] = _Y_HEADER


def _write_cell(sheet: Any, row: int, col: str, value: Any) -> None:
    sheet[f"{col}{row}"] = value


def populate_sheet(sheet: Any, plan: Plan) -> None:
    rooms: list[Room] = [room for floor in plan.floors for room in floor.rooms]
    windows: list[tuple[str, Window]] = [
        (room.name, w) for room in rooms for w in room.windows
    ]
    doors: list[tuple[str, Door]] = [
        (room.name, d) for room in rooms for d in room.doors
    ]

    if len(rooms) > _MAX_ROWS:
        raise ValueError(f"Room series exceeds {_MAX_ROWS} rows ({len(rooms)} rooms)")
    if len(windows) > _MAX_ROWS:
        raise ValueError(f"Window series exceeds {_MAX_ROWS} rows ({len(windows)} windows)")
    if len(doors) > _MAX_ROWS:
        raise ValueError(f"Door series exceeds {_MAX_ROWS} rows ({len(doors)} doors)")

    for i, room in enumerate(rooms):
        row = _DATA_START_ROW + i
        _write_cell(sheet, row, "B", room.name)
        _write_cell(sheet, row, "D", room.area_m2)

    for i, (room_name, window) in enumerate(windows):
        row = _DATA_START_ROW + i
        vent = window.ventilation
        _write_cell(sheet, row, "G", room_name)
        _write_cell(sheet, row, "H", window.width_m)
        _write_cell(sheet, row, "I", window.height_m)
        # J = formula =H*I — do not write
        _write_cell(sheet, row, "K", vent.opening_type if vent else 0)
        _write_cell(sheet, row, "L", vent.num_openings if vent else 0)
        pct = vent.pct_openable if vent else None
        _write_cell(sheet, row, "M", (pct / 100) if pct is not None else 0)
        # N = formula =J*M — do not write
        # O, P = blank (visual check by auditor)
        _write_cell(sheet, row, "Q", vent.trickle_vent_area_mm2 if vent else 0)
        _write_cell(sheet, row, "R", vent.num_trickle_vents if vent else 0)
        # S = formula =Q*R — do not write

    for i, (room_name, door) in enumerate(doors):
        row = _DATA_START_ROW + i
        vent = door.ventilation
        _write_cell(sheet, row, "V", room_name)
        _write_cell(sheet, row, "W", door.width_mm)
        _write_cell(sheet, row, "X", vent.undercut_mm if vent else 0)
        # Y = formula =W*X — do not write

    _apply_column_y_formatting(sheet)