supercode-frontend-tui 0.5.84

// Derived from OpenAI Codex: codex-rs/tui/src/notifications/osc9.rs
// Pinned source: 8604689ec5e3437eb79802d8d72249b7722fbf5b
// Copyright 2025 OpenAI
// Licensed under the Apache License, Version 2.0.
// Modified by the Supercode contributors; see docs/legal/codex-frontend-extraction.toml.

use std::fmt;
use std::io;
use std::io::stdout;

use crossterm::Command;
use ratatui::crossterm::execute;

#[derive(Debug)]
pub struct Osc9Backend {
    dcs_passthrough: bool,
}

impl Default for Osc9Backend {
    fn default() -> Self {
        Self::new(false)
    }
}

impl Osc9Backend {
    pub fn new(dcs_passthrough: bool) -> Self {
        Self { dcs_passthrough }
    }

    pub fn notify(&mut self, message: &str) -> io::Result<()> {
        execute!(
            stdout(),
            PostNotification {
                message: message.to_string(),
                dcs_passthrough: self.dcs_passthrough,
            }
        )
    }
}

/// Command that emits an OSC 9 desktop notification with a message.
#[derive(Debug, Clone)]
pub struct PostNotification {
    pub message: String,
    pub dcs_passthrough: bool,
}

impl Command for PostNotification {
    fn write_ansi(&self, f: &mut impl fmt::Write) -> fmt::Result {
        if self.dcs_passthrough {
            let escaped_message = escape_tmux_dcs_passthrough_payload(&self.message);
            write!(f, "\x1bPtmux;\x1b\x1b]9;{escaped_message}\x07\x1b\\")
        } else {
            write!(f, "\x1b]9;{}\x07", self.message)
        }
    }

    #[cfg(windows)]
    fn execute_winapi(&self) -> io::Result<()> {
        Err(std::io::Error::other(
            "tried to execute PostNotification using WinAPI; use ANSI instead",
        ))
    }

    #[cfg(windows)]
    fn is_ansi_code_supported(&self) -> bool {
        true
    }
}

fn escape_tmux_dcs_passthrough_payload(message: &str) -> String {
    message.replace('\u{1b}', "\u{1b}\u{1b}")
}