from dataclasses import dataclass, field, replace
from typing import (
    TYPE_CHECKING,
    Dict,
    Iterable,
    List,
    NamedTuple,
    Optional,
    Sequence,
    Tuple,
    Union,
)

from . import box, errors
from ._loop import loop_first_last, loop_last
from ._pick import pick_bool
from ._ratio import ratio_distribute, ratio_reduce
from .align import VerticalAlignMethod
from .jupyter import JupyterMixin
from .measure import Measurement
from .padding import Padding, PaddingDimensions
from .protocol import is_renderable
from .segment import Segment
from .style import Style, StyleType
from .text import Text, TextType

if TYPE_CHECKING:
    from .console import (
        Console,
        ConsoleOptions,
        JustifyMethod,
        OverflowMethod,
        RenderableType,
        RenderResult,
    )


@dataclass
class Column:
    """Defines a column in a table."""

    header: "RenderableType" = ""
    """RenderableType: Renderable for the header (typically a string)"""

    footer: "RenderableType" = ""
    """RenderableType: Renderable for the footer (typically a string)"""

    header_style: StyleType = ""
    """StyleType: The style of the header."""

    footer_style: StyleType = ""
    """StyleType: The style of the footer."""

    style: StyleType = ""
    """StyleType: The style of the column."""

    justify: "JustifyMethod" = "left"
    """str: How to justify text within the column ("left", "center", "right", or "full")"""

    vertical: "VerticalAlignMethod" = "top"
    """str: How to vertically align content ("top", "middle", or "bottom")"""

    overflow: "OverflowMethod" = "ellipsis"
    """str: Overflow method."""

    width: Optional[int] = None
    """Optional[int]: Width of the column, or ``None`` (default) to auto calculate width."""

    min_width: Optional[int] = None
    """Optional[int]: Minimum width of column, or ``None`` for no minimum. Defaults to None."""

    max_width: Optional[int] = None
    """Optional[int]: Maximum width of column, or ``None`` for no maximum. Defaults to None."""

    ratio: Optional[int] = None
    """Optional[int]: Ratio to use when calculating column width, or ``None`` (default) to adapt to column contents."""

    no_wrap: bool = False
    """bool: Prevent wrapping of text within the column. Defaults to ``False``."""

    _index: int = 0
    """Index of column."""

    _cells: List["RenderableType"] = field(default_factory=list)

    def copy(self) -> "Column":
        """Return a copy of this Column."""
        return replace(self, _cells=[])

    @property
    def cells(self) -> Iterable["RenderableType"]:
        """Get all cells in the column, not including header."""
        yield from self._cells

    @property
    def flexible(self) -> bool:
        """Check if this column is flexible."""
        return self.ratio is not None


@dataclass
class Row:
    """Information regarding a row."""

    style: Optional[StyleType] = None
    """Style to apply to row."""

    end_section: bool = False
    """Indicated end of section, which will force a line beneath the row."""


class _Cell(NamedTuple):
    """A single cell in a table."""

    style: StyleType
    """Style to apply to cell."""
    renderable: "RenderableType"
    """Cell renderable."""
    vertical: VerticalAlignMethod
    """Cell vertical alignment."""


class Table(JupyterMixin):
    """A console renderable to draw a table.

    Args:
        *headers (Union[Column, str]): Column headers, either as a string, or :class:`~rich.table.Column` instance.
        title (Union[str, Text], optional): The title of the table rendered at the top. Defaults to None.
        caption (Union[str, Text], optional): The table caption rendered below. Defaults to None.
        width (int, optional): The width in characters of the table, or ``None`` to automatically fit. Defaults to None.
        min_width (Optional[int], optional): The minimum width of the table, or ``None`` for no minimum. Defaults to None.
        box (box.Box, optional): One of the constants in box.py used to draw the edges (see :ref:`appendix_box`), or ``None`` for no box lines. Defaults to box.HEAVY_HEAD.
        safe_box (Optional[bool], optional): Disable box characters that don't display on windows legacy terminal with *raster* fonts. Defaults to True.
        padding (PaddingDimensions, optional): Padding for cells (top, right, bottom, left). Defaults to (0, 1).
        collapse_padding (bool, optional): Enable collapsing of padding around cells. Defaults to False.
        pad_edge (bool, optional): Enable padding of edge cells. Defaults to True.
        expand (bool, optional): Expand the table to fit the available space if ``True``, otherwise the table width will be auto-calculated. Defaults to False.
        show_header (bool, optional): Show a header row. Defaults to True.
        show_footer (bool, optional): Show a footer row. Defaults to False.
        show_edge (bool, optional): Draw a box around the outside of the table. Defaults to True.
        show_lines (bool, optional): Draw lines between every row. Defaults to False.
        leading (bool, optional): Number of blank lines between rows (precludes ``show_lines``). Defaults to 0.
        style (Union[str, Style], optional): Default style for the table. Defaults to "none".
        row_styles (List[Union, str], optional): Optional list of row styles, if more than one style is given then the styles will alternate. Defaults to None.
        header_style (Union[str, Style], optional): Style of the header. Defaults to "table.header".
        footer_style (Union[str, Style], optional): Style of the footer. Defaults to "table.footer".
        border_style (Union[str, Style], optional): Style of the border. Defaults to None.
        title_style (Union[str, Style], optional): Style of the title. Defaults to None.
        caption_style (Union[str, Style], optional): Style of the caption. Defaults to None.
        title_justify (str, optional): Justify method for title. Defaults to "center".
        caption_justify (str, optional): Justify method for caption. Defaults to "center".
        highlight (bool, optional): Highlight cell contents (if str). Defaults to False.
    """

    columns: List[Column]
    rows: List[Row]

    def __init__(
        self,
        *headers: Union[Column, str],
        title: Optional[TextType] = None,
        caption: Optional[TextType] = None,
        width: Optional[int] = None,
        min_width: Optional[int] = None,
        box: Optional[box.Box] = box.HEAVY_HEAD,
        safe_box: Optional[bool] = None,
        padding: PaddingDimensions = (0, 1),
        collapse_padding: bool = False,
        pad_edge: bool = True,
        expand: bool = False,
        show_header: bool = True,
        show_footer: bool = False,
        show_edge: bool = True,
        show_lines: bool = False,
        leading: int = 0,
        style: StyleType = "none",
        row_styles: Optional[Iterable[StyleType]] = None,
        header_style: Optional[StyleType] = "table.header",
        footer_style: Optional[StyleType] = "table.footer",
        border_style: Optional[StyleType] = None,
        title_style: Optional[StyleType] = None,
        caption_style: Optional[StyleType] = None,
        title_justify: "JustifyMethod" = "center",
        caption_justify: "JustifyMethod" = "center",
        highlight: bool = False,
    ) -> None:

        self.columns: List[Column] = []
        self.rows: List[Row] = []
        self.title = title
        self.caption = caption
        self.width = width
        self.min_width = min_width
        self.box = box
        self.safe_box = safe_box
        self._padding = Padding.unpack(padding)
        self.pad_edge = pad_edge
        self._expand = expand
        self.show_header = show_header
        self.show_footer = show_footer
        self.show_edge = show_edge
        self.show_lines = show_lines
        self.leading = leading
        self.collapse_padding = collapse_padding
        self.style = style
        self.header_style = header_style or ""
        self.footer_style = footer_style or ""
        self.border_style = border_style
        self.title_style = title_style
        self.caption_style = caption_style
        self.title_justify: "JustifyMethod" = title_justify
        self.caption_justify: "JustifyMethod" = caption_justify
        self.highlight = highlight
        self.row_styles: Sequence[StyleType] = list(row_styles or [])
        append_column = self.columns.append
        for header in headers:
            if isinstance(header, str):
                self.add_column(header=header)
            else:
                header._index = len(self.columns)
                append_column(header)

    @classmethod
    def grid(
        cls,
        *headers: Union[Column, str],
        padding: PaddingDimensions = 0,
        collapse_padding: bool = True,
        pad_edge: bool = False,
        expand: bool = False,
    ) -> "Table":
        """Get a table with no lines, headers, or footer.

        Args:
            *headers (Union[Column, str]): Column headers, either as a string, or :class:`~rich.table.Column` instance.
            padding (PaddingDimensions, optional): Get padding around cells. Defaults to 0.
            collapse_padding (bool, optional): Enable collapsing of padding around cells. Defaults to True.
            pad_edge (bool, optional): Enable padding around edges of table. Defaults to False.
            expand (bool, optional): Expand the table to fit the available space if ``True``, otherwise the table width will be auto-calculated. Defaults to False.

        Returns:
            Table: A table instance.
        """
        return cls(
            *headers,
            box=None,
            padding=padding,
            collapse_padding=collapse_padding,
            show_header=False,
            show_footer=False,
            show_edge=False,
            pad_edge=pad_edge,
            expand=expand,
        )

    @property
    def expand(self) -> bool:
        """Setting a non-None self.width implies expand."""
        return self._expand or self.width is not None

    @expand.setter
    def expand(self, expand: bool) -> None:
        """Set expand."""
        self._expand = expand

    @property
    def _extra_width(self) -> int:
        """Get extra width to add to cell content."""
        width = 0
        if self.box and self.show_edge:
            width += 2
        if self.box:
            width += len(self.columns) - 1
        return width

    @property
    def row_count(self) -> int:
        """Get the current number of rows."""
        return len(self.rows)

    def get_row_style(self, console: "Console", index: int) -> StyleType:
        """Get the current row style."""
        style = Style.null()
        if self.row_styles:
            style += console.get_style(self.row_styles[index % len(self.row_styles)])
        row_style = self.rows[index].style
        if row_style is not None:
            style += console.get_style(row_style)
        return style

    def __rich_measure__(
        self, console: "Console", options: "ConsoleOptions"
    ) -> Measurement:
        max_width = options.max_width
        if self.width is not None:
            max_width = self.width
        if max_width < 0:
            return Measurement(0, 0)

        extra_width = self._extra_width
        max_width = sum(
            self._calculate_column_widths(
                console, options.update_width(max_width - extra_width)
            )
        )
        _measure_column = self._measure_column

        measurements = [
            _measure_column(console, options.update_width(max_width), column)
            for column in self.columns
        ]
        minimum_width = (
            sum(measurement.minimum for measurement in measurements) + extra_width
        )
        maximum_width = (
            sum(measurement.maximum for measurement in measurements) + extra_width
            if (self.width is None)
            else self.width
        )
        measurement = Measurement(minimum_width, maximum_width)
        measurement = measurement.clamp(self.min_width)
        return measurement

    @property
    def padding(self) -> Tuple[int, int, int, int]:
        """Get cell padding."""
        return self._padding

    @padding.setter
    def padding(self, padding: PaddingDimensions) -> "Table":
        """Set cell padding."""
        self._padding = Padding.unpack(padding)
        return self

    def add_column(
        self,
        header: "RenderableType" = "",
        footer: "RenderableType" = "",
        *,
        header_style: Optional[StyleType] = None,
        footer_style: Optional[StyleType] = None,
        style: Optional[StyleType] = None,
        justify: "JustifyMethod" = "left",
        vertical: "VerticalAlignMethod" = "top",
        overflow: "OverflowMethod" = "ellipsis",
        width: Optional[int] = None,
        min_width: Optional[int] = None,
        max_width: Optional[int] = None,
        ratio: Optional[int] = None,
        no_wrap: bool = False,
    ) -> None:
        """Add a column to the table.

        Args:
            header (RenderableType, optional): Text or renderable for the header.
                Defaults to "".
            footer (RenderableType, optional): Text or renderable for the footer.
                Defaults to "".
            header_style (Union[str, Style], optional): Style for the header, or None for default. Defaults to None.
            footer_style (Union[str, Style], optional): Style for the footer, or None for default. Defaults to None.
            style (Union[str, Style], optional): Style for the column cells, or None for default. Defaults to None.
            justify (JustifyMethod, optional): Alignment for cells. Defaults to "left".
            vertical (VerticalAlignMethod, optional): Vertical alignment, one of "top", "middle", or "bottom". Defaults to "top".
            overflow (OverflowMethod): Overflow method: "crop", "fold", "ellipsis". Defaults to "ellipsis".
            width (int, optional): Desired width of column in characters, or None to fit to contents. Defaults to None.
            min_width (Optional[int], optional): Minimum width of column, or ``None`` for no minimum. Defaults to None.
            max_width (Optional[int], optional): Maximum width of column, or ``None`` for no maximum. Defaults to None.
            ratio (int, optional): Flexible ratio for the column (requires ``Table.expand`` or ``Table.width``). Defaults to None.
            no_wrap (bool, optional): Set to ``True`` to disable wrapping of this column.
        """

        column = Column(
            _index=len(self.columns),
            header=header,
            footer=footer,
            header_style=header_style or "",
            footer_style=footer_style or "",
            style=style or "",
            justify=justify,
            vertical=vertical,
            overflow=overflow,
            width=width,
            min_width=min_width,
            max_width=max_width,
            ratio=ratio,
            no_wrap=no_wrap,
        )
        self.columns.append(column)

    def add_row(
        self,
        *renderables: Optional["RenderableType"],
        style: Optional[StyleType] = None,
        end_section: bool = False,
    ) -> None:
        """Add a row of renderables.

        Args:
            *renderables (None or renderable): Each cell in a row must be a renderable object (including str),
                or ``None`` for a blank cell.
            style (StyleType, optional): An optional style to apply to the entire row. Defaults to None.
            end_section (bool, optional): End a section and draw a line. Defaults to False.

        Raises:
            errors.NotRenderableError: If you add something that can't be rendered.
        """

        def add_cell(column: Column, renderable: "RenderableType") -> None:
            column._cells.append(renderable)

        cell_renderables: List[Optional["RenderableType"]] = list(renderables)

        columns = self.columns
        if len(cell_renderables) < len(columns):
            cell_renderables = [
                *cell_renderables,
                *[None] * (len(columns) - len(cell_renderables)),
            ]
        for index, renderable in enumerate(cell_renderables):
            if index == len(columns):
                column = Column(_index=index)
                for _ in self.rows:
                    add_cell(column, Text(""))
                self.columns.append(column)
            else:
                column = columns[index]
            if renderable is None:
                add_cell(column, "")
            elif is_renderable(renderable):
                add_cell(column, renderable)
            else:
                raise errors.NotRenderableError(
                    f"unable to render {type(renderable).__name__}; a string or other renderable object is required"
                )
        self.rows.append(Row(style=style, end_section=end_section))

    def __rich_console__(
        self, console: "Console", options: "ConsoleOptions"
    ) -> "RenderResult":

        if not self.columns:
            yield Segment("\n")
            return

        max_width = options.max_width
        if self.width is not None:
            max_width = self.width

        extra_width = self._extra_width
        widths = self._calculate_column_widths(
            console, options.update_width(max_width - extra_width)
        )
        table_width = sum(widths) + extra_width

        render_options = options.update(
            width=table_width, highlight=self.highlight, height=None
        )

        def render_annotation(
            text: TextType, style: StyleType, justify: "JustifyMethod" = "center"
        ) -> "RenderResult":
            render_text = (
                console.render_str(text, style=style, highlight=False)
                if isinstance(text, str)
                else text
            )
            return console.render(
                render_text, options=render_options.update(justify=justify)
            )

        if self.title:
            yield from render_annotation(
                self.title,
                style=Style.pick_first(self.title_style, "table.title"),
                justify=self.title_justify,
            )
        yield from self._render(console, render_options, widths)
        if self.caption:
            yield from render_annotation(
                self.caption,
                style=Style.pick_first(self.caption_style, "table.caption"),
                justify=self.caption_justify,
            )

    def _calculate_column_widths(
        self, console: "Console", options: "ConsoleOptions"
    ) -> List[int]:
        """Calculate the widths of each column, including padding, not including borders."""
        max_width = options.max_width
        columns = self.columns
        width_ranges = [
            self._measure_column(console, options, column) for column in columns
        ]
        widths = [_range.maximum or 1 for _range in width_ranges]
        get_padding_width = self._get_padding_width
        extra_width = self._extra_width
        if self.expand:
            ratios = [col.ratio or 0 for col in columns if col.flexible]
            if any(ratios):
                fixed_widths = [
                    0 if column.flexible else _range.maximum
                    for _range, column in zip(width_ranges, columns)
                ]
                flex_minimum = [
                    (column.width or 1) + get_padding_width(column._index)
                    for column in columns
                    if column.flexible
                ]
                flexible_width = max_width - sum(fixed_widths)
                flex_widths = ratio_distribute(flexible_width, ratios, flex_minimum)
                iter_flex_widths = iter(flex_widths)
                for index, column in enumerate(columns):
                    if column.flexible:
                        widths[index] = fixed_widths[index] + next(iter_flex_widths)
        table_width = sum(widths)

        if table_width > max_width:
            widths = self._collapse_widths(
                widths,
                [(column.width is None and not column.no_wrap) for column in columns],
                max_width,
            )
            table_width = sum(widths)
            # last resort, reduce columns evenly
            if table_width > max_width:
                excess_width = table_width - max_width
                widths = ratio_reduce(excess_width, [1] * len(widths), widths, widths)
                table_width = sum(widths)

            width_ranges = [
                self._measure_column(console, options.update_width(width), column)
                for width, column in zip(widths, columns)
            ]
            widths = [_range.maximum or 0 for _range in width_ranges]

        if (table_width < max_width and self.expand) or (
            self.min_width is not None and table_width < (self.min_width - extra_width)
        ):
            _max_width = (
                max_width
                if self.min_width is None
                else min(self.min_width - extra_width, max_width)
            )
            pad_widths = ratio_distribute(_max_width - table_width, widths)
            widths = [_width + pad for _width, pad in zip(widths, pad_widths)]

        return widths

    @classmethod
    def _collapse_widths(
        cls, widths: List[int], wrapable: List[bool], max_width: int
    ) -> List[int]:
        """Reduce widths so that the total is under max_width.

        Args:
            widths (List[int]): List of widths.
            wrapable (List[bool]): List of booleans that indicate if a column may shrink.
            max_width (int): Maximum width to reduce to.

        Returns:
            List[int]: A new list of widths.
        """
        total_width = sum(widths)
        excess_width = total_width - max_width
        if any(wrapable):
            while total_width and excess_width > 0:
                max_column = max(
                    width for width, allow_wrap in zip(widths, wrapable) if allow_wrap
                )
                second_max_column = max(
                    width if allow_wrap and width != max_column else 0
                    for width, allow_wrap in zip(widths, wrapable)
                )
                column_difference = max_column - second_max_column
                ratios = [
                    (1 if (width == max_column and allow_wrap) else 0)
                    for width, allow_wrap in zip(widths, wrapable)
                ]
                if not any(ratios) or not column_difference:
                    break
                max_reduce = [min(excess_width, column_difference)] * len(widths)
                widths = ratio_reduce(excess_width, ratios, max_reduce, widths)

                total_width = sum(widths)
                excess_width = total_width - max_width
        return widths

    def _get_cells(
        self, console: "Console", column_index: int, column: Column
    ) -> Iterable[_Cell]:
        """Get all the cells with padding and optional header."""

        collapse_padding = self.collapse_padding
        pad_edge = self.pad_edge
        padding = self.padding
        any_padding = any(padding)

        first_column = column_index == 0
        last_column = column_index == len(self.columns) - 1

        _padding_cache: Dict[Tuple[bool, bool], Tuple[int, int, int, int]] = {}

        def get_padding(first_row: bool, last_row: bool) -> Tuple[int, int, int, int]:
            cached = _padding_cache.get((first_row, last_row))
            if cached:
                return cached
            top, right, bottom, left = padding

            if collapse_padding:
                if not first_column:
                    left = max(0, left - right)
                if not last_row:
                    bottom = max(0, top - bottom)

            if not pad_edge:
                if first_column:
                    left = 0
                if last_column:
                    right = 0
                if first_row:
                    top = 0
                if last_row:
                    bottom = 0
            _padding = (top, right, bottom, left)
            _padding_cache[(first_row, last_row)] = _padding
            return _padding

        raw_cells: List[Tuple[StyleType, "RenderableType"]] = []
        _append = raw_cells.append
        get_style = console.get_style
        if self.show_header:
            header_style = get_style(self.header_style or "") + get_style(
                column.header_style
            )
            _append((header_style, column.header))
        cell_style = get_style(column.style or "")
        for cell in column.cells:
            _append((cell_style, cell))
        if self.show_footer:
            footer_style = get_style(self.footer_style or "") + get_style(
                column.footer_style
            )
            _append((footer_style, column.footer))

        if any_padding:
            _Padding = Padding
            for first, last, (style, renderable) in loop_first_last(raw_cells):
                yield _Cell(
                    style,
                    _Padding(renderable, get_padding(first, last)),
                    getattr(renderable, "vertical", None) or column.vertical,
                )
        else:
            for (style, renderable) in raw_cells:
                yield _Cell(
                    style,
                    renderable,
                    getattr(renderable, "vertical", None) or column.vertical,
                )

    def _get_padding_width(self, column_index: int) -> int:
        """Get extra width from padding."""
        _, pad_right, _, pad_left = self.padding
        if self.collapse_padding:
            if column_index > 0:
                pad_left = max(0, pad_left - pad_right)
        return pad_left + pad_right

    def _measure_column(
        self,
        console: "Console",
        options: "ConsoleOptions",
        column: Column,
    ) -> Measurement:
        """Get the minimum and maximum width of the column."""

        max_width = options.max_width
        if max_width < 1:
            return Measurement(0, 0)

        padding_width = self._get_padding_width(column._index)

        if column.width is not None:
            # Fixed width column
            return Measurement(
                column.width + padding_width, column.width + padding_width
            ).with_maximum(max_width)
        # Flexible column, we need to measure contents
        min_widths: List[int] = []
        max_widths: List[int] = []
        append_min = min_widths.append
        append_max = max_widths.append
        get_render_width = Measurement.get
        for cell in self._get_cells(console, column._index, column):
            _min, _max = get_render_width(console, options, cell.renderable)
            append_min(_min)
            append_max(_max)

        measurement = Measurement(
            max(min_widths) if min_widths else 1,
            max(max_widths) if max_widths else max_width,
        ).with_maximum(max_width)
        measurement = measurement.clamp(
            None if column.min_width is None else column.min_width + padding_width,
            None if column.max_width is None else column.max_width + padding_width,
        )
        return measurement

    def _render(
        self, console: "Console", options: "ConsoleOptions", widths: List[int]
    ) -> "RenderResult":
        table_style = console.get_style(self.style or "")

        border_style = table_style + console.get_style(self.border_style or "")
        _column_cells = (
            self._get_cells(console, column_index, column)
            for column_index, column in enumerate(self.columns)
        )
        row_cells: List[Tuple[_Cell, ...]] = list(zip(*_column_cells))
        _box = (
            self.box.substitute(
                options, safe=pick_bool(self.safe_box, console.safe_box)
            )
            if self.box
            else None
        )

        # _box = self.box
        new_line = Segment.line()

        columns = self.columns
        show_header = self.show_header
        show_footer = self.show_footer
        show_edge = self.show_edge
        show_lines = self.show_lines
        leading = self.leading

        _Segment = Segment
        if _box:
            box_segments = [
                (
                    _Segment(_box.head_left, border_style),
                    _Segment(_box.head_right, border_style),
                    _Segment(_box.head_vertical, border_style),
                ),
                (
                    _Segment(_box.foot_left, border_style),
                    _Segment(_box.foot_right, border_style),
                    _Segment(_box.foot_vertical, border_style),
                ),
                (
                    _Segment(_box.mid_left, border_style),
                    _Segment(_box.mid_right, border_style),
                    _Segment(_box.mid_vertical, border_style),
                ),
            ]
            if show_edge:
                yield _Segment(_box.get_top(widths), border_style)
                yield new_line
        else:
            box_segments = []

        get_row_style = self.get_row_style
        get_style = console.get_style

        for index, (first, last, row_cell) in enumerate(loop_first_last(row_cells)):
            header_row = first and show_header
            footer_row = last and show_footer
            row = (
                self.rows[index - show_header]
                if (not header_row and not footer_row)
                else None
            )
            max_height = 1
            cells: List[List[List[Segment]]] = []
            if header_row or footer_row:
                row_style = Style.null()
            else:
                row_style = get_style(
                    get_row_style(console, index - 1 if show_header else index)
                )
            for width, cell, column in zip(widths, row_cell, columns):
                render_options = options.update(
                    width=width,
                    justify=column.justify,
                    no_wrap=column.no_wrap,
                    overflow=column.overflow,
                    height=None,
                )
                lines = console.render_lines(
                    cell.renderable,
                    render_options,
                    style=get_style(cell.style) + row_style,
                )
                max_height = max(max_height, len(lines))
                cells.append(lines)

            row_height = max(len(cell) for cell in cells)

            def align_cell(
                cell: List[List[Segment]],
                vertical: "VerticalAlignMethod",
                width: int,
                style: Style,
            ) -> List[List[Segment]]:
                if header_row:
                    vertical = "bottom"
                elif footer_row:
                    vertical = "top"

                if vertical == "top":
                    return _Segment.align_top(cell, width, row_height, style)
                elif vertical == "middle":
                    return _Segment.align_middle(cell, width, row_height, style)
                return _Segment.align_bottom(cell, width, row_height, style)

            cells[:] = [
                _Segment.set_shape(
                    align_cell(
                        cell,
                        _cell.vertical,
                        width,
                        get_style(_cell.style) + row_style,
                    ),
                    width,
                    max_height,
                )
                for width, _cell, cell, column in zip(widths, row_cell, cells, columns)
            ]

            if _box:
                if last and show_footer:
                    yield _Segment(
                        _box.get_row(widths, "foot", edge=show_edge), border_style
                    )
                    yield new_line
                left, right, _divider = box_segments[0 if first else (2 if last else 1)]

                # If the column divider is whitespace also style it with the row background
                divider = (
                    _divider
                    if _divider.text.strip()
                    else _Segment(
                        _divider.text, row_style.background_style + _divider.style
                    )
                )
                for line_no in range(max_height):
                    if show_edge:
                        yield left
                    for last_cell, rendered_cell in loop_last(cells):
                        yield from rendered_cell[line_no]
                        if not last_cell:
                            yield divider
                    if show_edge:
                        yield right
                    yield new_line
            else:
                for line_no in range(max_height):
                    for rendered_cell in cells:
                        yield from rendered_cell[line_no]
                    yield new_line
            if _box and first and show_header:
                yield _Segment(
                    _box.get_row(widths, "head", edge=show_edge), border_style
                )
                yield new_line
            end_section = row and row.end_section
            if _box and (show_lines or leading or end_section):
                if (
                    not last
                    and not (show_footer and index >= len(row_cells) - 2)
                    and not (show_header and header_row)
                ):
                    if leading:
                        yield _Segment(
                            _box.get_row(widths, "mid", edge=show_edge) * leading,
                            border_style,
                        )
                    else:
                        yield _Segment(
                            _box.get_row(widths, "row", edge=show_edge), border_style
                        )
                    yield new_line

        if _box and show_edge:
            yield _Segment(_box.get_bottom(widths), border_style)
            yield new_line


if __name__ == "__main__":  # pragma: no cover
    from pip._vendor.rich.console import Console
    from pip._vendor.rich.highlighter import ReprHighlighter
    from pip._vendor.rich.table import Table as Table

    from ._timer import timer

    with timer("Table render"):
        table = Table(
            title="Star Wars Movies",
            caption="Rich example table",
            caption_justify="right",
        )

        table.add_column(
            "Released", header_style="bright_cyan", style="cyan", no_wrap=True
        )
        table.add_column("Title", style="magenta")
        table.add_column("Box Office", justify="right", style="green")

        table.add_row(
            "Dec 20, 2019",
            "Star Wars: The Rise of Skywalker",
            "$952,110,690",
        )
        table.add_row("May 25, 2018", "Solo: A Star Wars Story", "$393,151,347")
        table.add_row(
            "Dec 15, 2017",
            "Star Wars Ep. V111: The Last Jedi",
            "$1,332,539,889",
            style="on black",
            end_section=True,
        )
        table.add_row(
            "Dec 16, 2016",
            "Rogue One: A Star Wars Story",
            "$1,332,439,889",
        )

        def header(text: str) -> None:
            console.print()
            console.rule(highlight(text))
            console.print()

        console = Console()
        highlight = ReprHighlighter()
        header("Example Table")
        console.print(table, justify="center")

        table.expand = True
        header("expand=True")
        console.print(table)

        table.width = 50
        header("width=50")

        console.print(table, justify="center")

        table.width = None
        table.expand = False
        table.row_styles = ["dim", "none"]
        header("row_styles=['dim', 'none']")

        console.print(table, justify="center")

        table.width = None
        table.expand = False
        table.row_styles = ["dim", "none"]
        table.leading = 1
        header("leading=1, row_styles=['dim', 'none']")
        console.print(table, justify="center")

        table.width = None
        table.expand = False
        table.row_styles = ["dim", "none"]
        table.show_lines = True
        table.leading = 0
        header("show_lines=True, row_styles=['dim', 'none']")
        console.print(table, justify="center")
