import re

from PySide6 import QtCore, QtGui, QtWidgets
from tidalapi import Album, Mix, Playlist, Track, UserPlaylist, Video
from tidalapi.artist import Artist
from tidalapi.media import Quality

from tidal_dl_ng.helper.gui import HumanProxyModel


def get_table_data(
    item: QtWidgets.QTreeWidgetItem, column: int
) -> Track | Video | Album | Artist | Mix | Playlist | UserPlaylist:
    result: Track | Video | Album | Artist = item.data(column, QtCore.Qt.ItemDataRole.UserRole)

    return result


def get_table_text(item: QtWidgets.QTreeWidgetItem, column: int) -> str:
    result: str = item.text(column)

    return result


def get_results_media_item(
    index: QtCore.QModelIndex, proxy: HumanProxyModel, model: QtGui.QStandardItemModel
) -> Track | Video | Album | Artist | Playlist | Mix:
    # Switch column to "obj" column and map proxy data to our model.
    item: QtGui.QStandardItem = model.itemFromIndex(proxy.mapToSource(index.siblingAtColumn(1)))
    result: Track | Video | Album | Artist = item.data(QtCore.Qt.ItemDataRole.UserRole)

    return result


def get_user_list_media_item(item: QtWidgets.QTreeWidgetItem) -> Mix | Playlist | UserPlaylist:
    result: Mix | Playlist | UserPlaylist = get_table_data(item, 1)

    return result


def get_queue_download_media(
    item: QtWidgets.QTreeWidgetItem,
) -> Mix | Playlist | UserPlaylist | Track | Video | Album | Artist:
    result: Mix | Playlist | UserPlaylist | Track | Video | Album | Artist = get_table_data(item, 1)

    return result


def get_queue_download_quality(
    item: QtWidgets.QTreeWidgetItem,
) -> Quality:
    result: Quality = get_table_text(item, 4)

    return result


def set_table_data(
    item: QtWidgets.QTreeWidgetItem, data: Track | Video | Album | Artist | Mix | Playlist | UserPlaylist, column: int
):
    item.setData(column, QtCore.Qt.ItemDataRole.UserRole, data)


def set_results_media(item: QtWidgets.QTreeWidgetItem, media: Track | Video | Album | Artist):
    set_table_data(item, media, 1)


def set_user_list_media(
    item: QtWidgets.QTreeWidgetItem, media: Track | Video | Album | Artist | Mix | Playlist | UserPlaylist
):
    set_table_data(item, media, 1)


def set_queue_download_media(
    item: QtWidgets.QTreeWidgetItem, media: Mix | Playlist | UserPlaylist | Track | Video | Album | Artist
):
    set_table_data(item, media, 1)


class FilterHeader(QtWidgets.QHeaderView):
    filter_activated = QtCore.Signal()

    def __init__(self, parent):
        super().__init__(QtCore.Qt.Horizontal, parent)
        self._editors = []
        self._padding = 4
        self.setStretchLastSection(True)
        self.setSectionResizeMode(QtWidgets.QHeaderView.Stretch)
        self.setDefaultAlignment(QtCore.Qt.AlignLeft | QtCore.Qt.AlignVCenter)
        self.setSortIndicatorShown(False)
        self.setSectionsMovable(True)
        self.sectionResized.connect(self.adjust_positions)
        parent.horizontalScrollBar().valueChanged.connect(self.adjust_positions)

    def set_filter_boxes(self, count):
        while self._editors:
            editor = self._editors.pop()
            editor.deleteLater()

        for _ in range(count):
            editor = QtWidgets.QLineEdit(self.parent())
            editor.setPlaceholderText("Filter")
            editor.setClearButtonEnabled(True)
            editor.returnPressed.connect(self.filter_activated.emit)
            self._editors.append(editor)

        self.adjust_positions()

    def sizeHint(self):
        size = super().sizeHint()
        if self._editors:
            height = self._editors[0].sizeHint().height()
            size.setHeight(size.height() + height + self._padding)

        return size

    def updateGeometries(self):
        if self._editors:
            height = self._editors[0].sizeHint().height()
            self.setViewportMargins(0, 0, 0, height + self._padding)
        else:
            self.setViewportMargins(0, 0, 0, 0)

        super().updateGeometries()
        self.adjust_positions()

    def adjust_positions(self):
        for index, editor in enumerate(self._editors):
            height = editor.sizeHint().height()

            editor.move(self.sectionPosition(index) - self.offset() + 2, height + (self._padding // 2))
            editor.resize(self.sectionSize(index), height)

    def filter_text(self, index) -> str:
        if 0 <= index < len(self._editors):
            return self._editors[index].text()

        return ""

    def set_filter_text(self, index, text):
        if 0 <= index < len(self._editors):
            self._editors[index].setText(text)

    def clear_filters(self):
        for editor in self._editors:
            editor.clear()


class HumanProxyModel(QtCore.QSortFilterProxyModel):
    def _human_key(self, key):
        parts = re.split(r"(\d*\.\d+|\d+)", key)

        return tuple((e.swapcase() if i % 2 == 0 else float(e)) for i, e in enumerate(parts))

    def lessThan(self, source_left, source_right):
        data_left = source_left.data()
        data_right = source_right.data()

        if isinstance(data_left, str) and isinstance(data_right, str):
            return self._human_key(data_left) < self._human_key(data_right)

        return super().lessThan(source_left, source_right)

    @property
    def filters(self):
        if not hasattr(self, "_filters"):
            self._filters = []

        return self._filters

    @filters.setter
    def filters(self, filters):
        print("filters() called.")

        self._filters = filters

        self.invalidateFilter()

    def filterAcceptsRow(self, sourceRow, sourceParent) -> bool:
        for i, text in self.filters:
            if 0 <= i < self.columnCount():
                ix = self.sourceModel().index(sourceRow, i, sourceParent)
                data = ix.data()
                if str(data) in text:
                    return False

        return True