"""Bottom status line for the TUI.

Hosts the activity indicator (left) and a dim key-combo summary (right). The
indicator is the live "agent is working" signal; the combos keep the line
useful while idle. Sits at the very bottom, replacing Textual's Footer so the
working indicator and the key hints share one line.
"""

from __future__ import annotations

from textual.app import ComposeResult
from textual.containers import Horizontal
from textual.widgets import Static

from clients.terminal.tui.widgets.activity_indicator import ActivityIndicator

_COMBOS = "Ctrl+P palette · Ctrl+X Q quit · Esc stop"


class StatusBar(Horizontal):
    """One-line bottom bar: activity indicator + key combos."""

    DEFAULT_CSS = """
    StatusBar {
        height: 1;
        background: $tui-panel;
        color: $tui-text-dim;
        padding: 0 1;
    }
    StatusBar ActivityIndicator {
        width: auto;
        height: 1;
    }
    StatusBar .combos {
        color: $tui-text-dim;
        text-align: right;
        width: 1fr;
        height: 1;
    }
    """

    def __init__(self) -> None:
        super().__init__()
        self._activity = ActivityIndicator()
        self._combos = Static(_COMBOS, classes="combos")

    def compose(self) -> ComposeResult:
        yield self._activity
        yield self._combos

    def activity_start(self, label: str) -> None:
        self._activity.start(label)

    def activity_label(self, label: str) -> None:
        self._activity.set_label(label)

    def activity_stop(self) -> None:
        self._activity.stop()