lingshu-tools 0.10.0

Tool registry, ToolHandler trait, and 50+ tool implementations
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//! macOS availability probe for computer use.

pub fn is_macos() -> bool {
    cfg!(target_os = "macos")
}

pub fn cua_driver_binary_available(cmd: &str) -> bool {
    which::which(cmd).is_ok()
}

pub fn permissions_failure_hint() -> &'static str {
    "No apps/windows visible — macOS Screen Recording and Accessibility are likely \
     denied or not yet granted. Run `/computer open` in Lingshu, enable both permissions \
     for your terminal host and Lingshu, then quit and relaunch Lingshu."
}

pub fn install_hint() -> &'static str {
    "Run `/computer install` in Lingshu, or manually:\n\
     /bin/bash -c \"$(curl -fsSL https://raw.githubusercontent.com/trycua/cua/main/libs/cua-driver/scripts/install.sh)\"\n\
     Then grant Screen Recording + Accessibility (/computer open)."
}

pub fn permissions_status(cmd: &str) -> String {
    if !is_macos() {
        return "computer_use: macOS only (current platform unsupported)".into();
    }
    if !cua_driver_binary_available(cmd) {
        return format!(
            "computer_use: cua-driver not found ({cmd})\n{}\n",
            install_hint()
        );
    }
    format!(
        "computer_use: cua-driver found ({cmd})\n\
         Ensure Screen Recording and Accessibility are granted for Lingshu / cua-driver."
    )
}

pub fn check_requirements(cmd: &str) -> bool {
    is_macos() && cua_driver_binary_available(cmd)
}