"""Clipboard utilities for deepagents-cli."""

from future import annotations

import base64 import os from typing import TYPE_CHECKING

if TYPE_CHECKING: from textual.app import App

_PREVIEW_MAX_LENGTH = 40

def _copy_osc52(text: str) -> None: """Copy text using OSC 52 escape sequence (works over SSH/tmux).""" encoded = base64.b64encode(text.encode("utf-8")).decode("ascii") osc52_seq = f"\033]52;c;{encoded}\a" if os.environ.get("TMUX"): osc52_seq = f"\033Ptmux;\033{osc52_seq}\033\"

code

with open("/dev/tty", "w") as tty:
    tty.write(osc52_seq)
    tty.flush()

def _shorten_preview(texts: list[str]) -> str: """Shorten text for notification preview.""" dense_text = "⏎".join(texts).replace("\n", "⏎") if len(dense_text) > _PREVIEW_MAX_LENGTH: return f"{dense_text[: _PREVIEW_MAX_LENGTH - 1]}…" return dense_text

def copy_selection_to_clipboard(app: App) -> None: """Copy selected text from app widgets to clipboard.

code

This queries all widgets for their text_selection and copies
any selected text to the system clipboard.
"""
selected_texts = []

for widget in app.query("*"):
    if not hasattr(widget, "text_selection") or not widget.text_selection:
        continue

    selection = widget.text_selection

    try:
        result = widget.get_selection(selection)
    except Exception:
        continue

    if not result:
        continue

    selected_text, _ = result
    if selected_text.strip():
        selected_texts.append(selected_text)

if not selected_texts:
    return

combined_text = "\n".join(selected_texts)

# Try multiple clipboard methods
copy_methods = [_copy_osc52, app.copy_to_clipboard]

# Try pyperclip if available
try:
    import pyperclip

    copy_methods.insert(1, pyperclip.copy)
except ImportError:
    pass

for copy_fn in copy_methods:
    try:
        copy_fn(combined_text)
        # Use markup=False to prevent copied text from being parsed as Rich markup
        app.notify(
            f'"{_shorten_preview(selected_texts)}" copied',
            severity="information",
            timeout=2,
            markup=False,
        )
        return
    except Exception:
        continue

# If all methods fail, still notify but warn
app.notify(
    "Failed to copy - no clipboard method available",
    severity="warning",
    timeout=3,
)