"""QAbstractTableModel for displaying parsed wafer temperature data in QML."""

from __future__ import annotations

import logging
from typing import Any

from PySide6.QtCore import QAbstractTableModel, Qt

log = logging.getLogger(__name__)

# Column roles for the temperature data table
ROW_ROLE = Qt.ItemDataRole.UserRole + 1
COL_ROLE = Qt.ItemDataRole.UserRole + 2


class TemperatureTableModel(QAbstractTableModel):
    """Table model for parsed wafer temperature data.

    Exposes a 2D list of temperature strings to QML TableView.
    Column 0 = row index, remaining columns = Sensor1, Sensor2, ...
    """

    def __init__(self, parent: Any = None) -> None:
        super().__init__(parent)
        self._data: list[list[str]] = []  # 2D array of temperature strings
        self._col_count: int = 0  # Number of sensor columns (excludes row index)

    def reset(self) -> None:
        """Clear all data."""
        self.beginResetModel()
        self._data = []
        self._col_count = 0
        self.endResetModel()

    def load_data(self, data: list[list[str]], col_count: int) -> None:
        """Load parsed temperature data into the model.

        Args:
            data: 2D list of temperature strings (e.g. [["25.30", "24.80", ...], ...]).
            col_count: Number of sensor columns (may differ from data[0] length).
        """
        self.beginResetModel()
        self._data = data
        self._col_count = col_count
        self.endResetModel()
        log.info("Loaded %d rows × %d cols into model", len(data), col_count)

    # ---- QAbstractTableModel interface ----

    def rowCount(self, parent: Any = None) -> int:
        return len(self._data)

    def columnCount(self, parent: Any = None) -> int:
        # Column 0 = row index, columns 1..N = sensor values
        return self._col_count + 1

    def data(self, index: Any, role: int = ...) -> Any:
        if not index.isValid():
            return None

        row = index.row()
        col = index.column()

        if role == Qt.ItemDataRole.DisplayRole:
            if col == 0:
                return str(row + 1)  # 1-based row index
            sensor_col = col - 1
            if row < len(self._data) and sensor_col < len(self._data[row]):
                return self._data[row][sensor_col]
            return "0"

        return None

    def headerData(
        self, section: int, orientation: int, role: int = ...
    ) -> Any:
        if role != Qt.ItemDataRole.DisplayRole:
            return None
        if orientation == Qt.Orientation.Horizontal:
            if section == 0:
                return "Row"
            return f"Sensor{section}"
        return str(section + 1)