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from typing import TYPE_CHECKING, Any, Dict, Iterable, List, Sequence

if TYPE_CHECKING:
    from pip._vendor.rich.console import ConsoleRenderable

from . import get_console
from .segment import Segment
from .terminal_theme import DEFAULT_TERMINAL_THEME

if TYPE_CHECKING:
    from pip._vendor.rich.console import ConsoleRenderable

JUPYTER_HTML_FORMAT = """\
<pre style="white-space:pre;overflow-x:auto;line-height:normal;font-family:Menlo,'DejaVu Sans Mono',consolas,'Courier New',monospace">{code}</pre>
"""


class JupyterRenderable:
    """A shim to write html to Jupyter notebook."""

    def __init__(self, html: str, text: str) -> None:
        self.html = html
        self.text = text

    def _repr_mimebundle_(
        self, include: Sequence[str], exclude: Sequence[str], **kwargs: Any
    ) -> Dict[str, str]:
        data = {"text/plain": self.text, "text/html": self.html}
        if include:
            data = {k: v for (k, v) in data.items() if k in include}
        if exclude:
            data = {k: v for (k, v) in data.items() if k not in exclude}
        return data


class JupyterMixin:
    """Add to an Rich renderable to make it render in Jupyter notebook."""

    __slots__ = ()

    def _repr_mimebundle_(
        self: "ConsoleRenderable",
        include: Sequence[str],
        exclude: Sequence[str],
        **kwargs: Any,
    ) -> Dict[str, str]:
        console = get_console()
        segments = list(console.render(self, console.options))
        html = _render_segments(segments)
        text = console._render_buffer(segments)
        data = {"text/plain": text, "text/html": html}
        if include:
            data = {k: v for (k, v) in data.items() if k in include}
        if exclude:
            data = {k: v for (k, v) in data.items() if k not in exclude}
        return data


def _render_segments(segments: Iterable[Segment]) -> str:
    def escape(text: str) -> str:
        """Escape html."""
        return text.replace("&", "&amp;").replace("<", "&lt;").replace(">", "&gt;")

    fragments: List[str] = []
    append_fragment = fragments.append
    theme = DEFAULT_TERMINAL_THEME
    for text, style, control in Segment.simplify(segments):
        if control:
            continue
        text = escape(text)
        if style:
            rule = style.get_html_style(theme)
            text = f'<span style="{rule}">{text}</span>' if rule else text
            if style.link:
                text = f'<a href="{style.link}" target="_blank">{text}</a>'
        append_fragment(text)

    code = "".join(fragments)
    html = JUPYTER_HTML_FORMAT.format(code=code)

    return html


def display(segments: Iterable[Segment], text: str) -> None:
    """Render segments to Jupyter."""
    html = _render_segments(segments)
    jupyter_renderable = JupyterRenderable(html, text)
    try:
        from IPython.display import display as ipython_display

        ipython_display(jupyter_renderable)
    except ModuleNotFoundError:
        # Handle the case where the Console has force_jupyter=True,
        # but IPython is not installed.
        pass


def print(*args: Any, **kwargs: Any) -> None:
    """Proxy for Console print."""
    console = get_console()
    return console.print(*args, **kwargs)