maa-framework 1.23.0

//! Device discovery and configuration utilities.

use serde::{Deserialize, Serialize};

use crate::{MaaError, MaaResult, common, sys};
use std::ffi::{CStr, CString};
use std::path::{Path, PathBuf};
use std::sync::Once;

/// Information about a connected ADB device.
#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct AdbDevice {
    /// Device display name.
    pub name: String,
    /// Path to the ADB executable.
    pub adb_path: PathBuf,
    /// Device address (e.g., "127.0.0.1:5555").
    pub address: String,
    /// Supported screencap methods (bitflags).
    pub screencap_methods: u64,
    /// Supported input methods (bitflags).
    pub input_methods: u64,
    /// Device configuration as JSON.
    pub config: serde_json::Value,
}

/// Information about a desktop window (Win32).
#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct DesktopWindow {
    /// Window handle (HWND).
    pub hwnd: usize,
    /// Window class name.
    pub class_name: String,
    /// Window title.
    pub window_name: String,
}

/// A gamescope instance discovered from the session.
///
/// Combines the display number, PipeWire capture node and libei (EIS) socket of
/// a single gamescope instance into one model.
#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct GamescopeInstance {
    /// Display number (`n` in `gamescope-<n>`).
    pub display_no: u32,
    /// PipeWire node ID. Usable as `pw_node_id` in
    /// [`crate::common::LinuxControllerConfig`]. `0` means no capture node.
    pub pipewire_node_id: u32,
    /// EIS socket path. Usable as `eis_socket_path` in
    /// [`crate::common::LinuxControllerConfig`]. Empty when no EIS socket exists.
    pub eis_socket_path: String,
}

/// macOS system permission types used by toolkit helpers.
#[repr(i32)]
#[derive(Debug, Clone, Copy, PartialEq, Eq, Serialize, Deserialize)]
pub enum MacOSPermission {
    /// Screen recording / screen capture permission.
    ScreenCapture = sys::MaaMacOSPermissionEnum_MaaMacOSPermissionScreenCapture as i32,
    /// Accessibility permission for input simulation.
    Accessibility = sys::MaaMacOSPermissionEnum_MaaMacOSPermissionAccessibility as i32,
}

/// Toolkit utilities for device discovery and configuration.
pub struct Toolkit;

static AGENT_SERVER_INIT_OPTION_WARNING: Once = Once::new();

impl Toolkit {
    #[inline]
    fn unsupported(api: &str) -> MaaError {
        MaaError::UnsupportedInAgentServer(api.to_string())
    }

    fn maybe_warn_init_option_in_agent_server() {
        if std::env::var_os("MAA_RUST_WARN_AGENTSERVER_TOOLKIT_INIT").is_none() {
            return;
        }

        AGENT_SERVER_INIT_OPTION_WARNING.call_once(|| {
            eprintln!(
                "Warning: Toolkit::init_option is deprecated in AgentServer; only log_dir is applied."
            );
        });
    }

    /// Initialize MAA framework options.
    ///
    /// # Arguments
    /// * `user_path` - Path to user data directory
    /// * `default_config` - Default configuration JSON string
    pub fn init_option(user_path: &str, default_config: &str) -> MaaResult<()> {
        if crate::is_agent_server_context() {
            let _ = default_config;
            Self::maybe_warn_init_option_in_agent_server();
            let log_dir = Path::new(user_path).join("debug");
            return crate::configure_logging(log_dir.to_string_lossy().as_ref());
        }

        let c_path = CString::new(user_path)?;
        let c_config = CString::new(default_config)?;
        let ret = unsafe { sys::MaaToolkitConfigInitOption(c_path.as_ptr(), c_config.as_ptr()) };
        common::check_bool(ret)
    }

    /// Find connected ADB devices.
    ///
    /// Scans for all known Android emulators and connected ADB devices.
    ///
    /// # Returns
    /// List of discovered ADB devices with their configurations.
    pub fn find_adb_devices() -> MaaResult<Vec<AdbDevice>> {
        if crate::is_agent_server_context() {
            return Err(Self::unsupported("Toolkit::find_adb_devices"));
        }
        Self::find_adb_devices_impl(None)
    }

    /// Find connected ADB devices using a specific ADB binary.
    ///
    /// # Arguments
    /// * `adb_path` - Path to the ADB binary to use for discovery
    ///
    /// # Returns
    /// List of discovered ADB devices with their configurations.
    pub fn find_adb_devices_with_adb(adb_path: &str) -> MaaResult<Vec<AdbDevice>> {
        if crate::is_agent_server_context() {
            return Err(Self::unsupported("Toolkit::find_adb_devices_with_adb"));
        }
        Self::find_adb_devices_impl(Some(adb_path))
    }

    fn find_adb_devices_impl(specified_adb: Option<&str>) -> MaaResult<Vec<AdbDevice>> {
        let list = unsafe { sys::MaaToolkitAdbDeviceListCreate() };
        if list.is_null() {
            return Err(MaaError::NullPointer);
        }

        let _guard = AdbDeviceListGuard(list);

        unsafe {
            let ret = if let Some(adb_path) = specified_adb {
                let c_path = CString::new(adb_path)?;
                sys::MaaToolkitAdbDeviceFindSpecified(c_path.as_ptr(), list)
            } else {
                sys::MaaToolkitAdbDeviceFind(list)
            };
            common::check_bool(ret)?;

            let count = sys::MaaToolkitAdbDeviceListSize(list);
            let mut devices = Vec::with_capacity(count as usize);

            for i in 0..count {
                let device_ptr = sys::MaaToolkitAdbDeviceListAt(list, i);
                if device_ptr.is_null() {
                    continue;
                }

                let name = CStr::from_ptr(sys::MaaToolkitAdbDeviceGetName(device_ptr))
                    .to_string_lossy()
                    .into_owned();

                let adb_path_str = CStr::from_ptr(sys::MaaToolkitAdbDeviceGetAdbPath(device_ptr))
                    .to_string_lossy()
                    .into_owned();

                let address = CStr::from_ptr(sys::MaaToolkitAdbDeviceGetAddress(device_ptr))
                    .to_string_lossy()
                    .into_owned();

                let screencap_methods =
                    sys::MaaToolkitAdbDeviceGetScreencapMethods(device_ptr) as u64;
                let input_methods = sys::MaaToolkitAdbDeviceGetInputMethods(device_ptr) as u64;

                let config_str =
                    CStr::from_ptr(sys::MaaToolkitAdbDeviceGetConfig(device_ptr)).to_string_lossy();
                let config = serde_json::from_str(&config_str).unwrap_or(serde_json::Value::Null);

                devices.push(AdbDevice {
                    name,
                    adb_path: PathBuf::from(adb_path_str),
                    address,
                    screencap_methods,
                    input_methods,
                    config,
                });
            }
            Ok(devices)
        }
    }

    /// Find all desktop windows (Win32 only).
    ///
    /// # Returns
    /// List of visible desktop windows.
    pub fn find_desktop_windows() -> MaaResult<Vec<DesktopWindow>> {
        if crate::is_agent_server_context() {
            return Err(Self::unsupported("Toolkit::find_desktop_windows"));
        }

        let list = unsafe { sys::MaaToolkitDesktopWindowListCreate() };
        if list.is_null() {
            return Err(MaaError::NullPointer);
        }

        let _guard = DesktopWindowListGuard(list);

        unsafe {
            let ret = sys::MaaToolkitDesktopWindowFindAll(list);
            common::check_bool(ret)?;

            let count = sys::MaaToolkitDesktopWindowListSize(list);
            let mut windows = Vec::with_capacity(count as usize);

            for i in 0..count {
                let win_ptr = sys::MaaToolkitDesktopWindowListAt(list, i);
                if win_ptr.is_null() {
                    continue;
                }

                let hwnd = sys::MaaToolkitDesktopWindowGetHandle(win_ptr) as usize;

                let class_name = CStr::from_ptr(sys::MaaToolkitDesktopWindowGetClassName(win_ptr))
                    .to_string_lossy()
                    .into_owned();

                let window_name =
                    CStr::from_ptr(sys::MaaToolkitDesktopWindowGetWindowName(win_ptr))
                        .to_string_lossy()
                        .into_owned();

                windows.push(DesktopWindow {
                    hwnd,
                    class_name,
                    window_name,
                });
            }
            Ok(windows)
        }
    }

    /// Check whether the current process has the specified macOS permission.
    pub fn macos_check_permission(permission: MacOSPermission) -> MaaResult<bool> {
        if crate::is_agent_server_context() {
            return Err(Self::unsupported("Toolkit::macos_check_permission"));
        }

        let ret =
            unsafe { sys::MaaToolkitMacOSCheckPermission(permission as sys::MaaMacOSPermission) };
        Ok(ret != 0)
    }

    /// Request the specified macOS permission from the system.
    ///
    /// A successful return means the request API call succeeded. It does not
    /// necessarily mean the user has already granted the permission.
    pub fn macos_request_permission(permission: MacOSPermission) -> MaaResult<bool> {
        if crate::is_agent_server_context() {
            return Err(Self::unsupported("Toolkit::macos_request_permission"));
        }

        let ret =
            unsafe { sys::MaaToolkitMacOSRequestPermission(permission as sys::MaaMacOSPermission) };
        Ok(ret != 0)
    }

    /// Open the corresponding macOS settings page for the permission.
    pub fn macos_reveal_permission_settings(permission: MacOSPermission) -> MaaResult<bool> {
        if crate::is_agent_server_context() {
            return Err(Self::unsupported(
                "Toolkit::macos_reveal_permission_settings",
            ));
        }

        let ret = unsafe {
            sys::MaaToolkitMacOSRevealPermissionSettings(permission as sys::MaaMacOSPermission)
        };
        Ok(ret != 0)
    }

    /// Find gamescope instances on the session.
    ///
    /// Each instance bundles a display number, a PipeWire capture node and an
    /// EIS socket. The `pipewire_node_id` / `eis_socket_path` can be passed to
    /// [`crate::common::LinuxControllerConfig`] to capture and control a
    /// gamescope window directly, without going through the ScreenCast portal.
    ///
    /// Returns an empty list when gamescope is not running, and on non-Linux
    /// platforms (where the underlying C API returns no instances).
    pub fn find_gamescope_instances() -> MaaResult<Vec<GamescopeInstance>> {
        if crate::is_agent_server_context() {
            return Err(Self::unsupported("Toolkit::find_gamescope_instances"));
        }

        let list = unsafe { sys::MaaToolkitGamescopeInstanceListCreate() };
        if list.is_null() {
            return Err(MaaError::NullPointer);
        }

        let _guard = GamescopeInstanceListGuard(list);

        unsafe {
            common::check_bool(sys::MaaToolkitGamescopeInstanceFindAll(list))?;

            let count = sys::MaaToolkitGamescopeInstanceListSize(list);
            let mut instances = Vec::with_capacity(count as usize);

            for i in 0..count {
                let instance_ptr = sys::MaaToolkitGamescopeInstanceListAt(list, i);
                if instance_ptr.is_null() {
                    continue;
                }

                let display_no = sys::MaaToolkitGamescopeInstanceGetDisplayNo(instance_ptr);
                let pipewire_node_id =
                    sys::MaaToolkitGamescopeInstanceGetPipeWireNodeId(instance_ptr);
                let eis_socket_path =
                    sys::MaaToolkitGamescopeInstanceGetEisSocketPath(instance_ptr);
                if eis_socket_path.is_null() {
                    return Err(MaaError::NullPointer);
                }
                let eis_socket_path = CStr::from_ptr(eis_socket_path)
                    .to_string_lossy()
                    .into_owned();

                instances.push(GamescopeInstance {
                    display_no,
                    pipewire_node_id,
                    eis_socket_path,
                });
            }
            Ok(instances)
        }
    }
}

struct AdbDeviceListGuard(*mut sys::MaaToolkitAdbDeviceList);
impl Drop for AdbDeviceListGuard {
    fn drop(&mut self) {
        unsafe { sys::MaaToolkitAdbDeviceListDestroy(self.0) }
    }
}

struct DesktopWindowListGuard(*mut sys::MaaToolkitDesktopWindowList);
impl Drop for DesktopWindowListGuard {
    fn drop(&mut self) {
        unsafe { sys::MaaToolkitDesktopWindowListDestroy(self.0) }
    }
}

struct GamescopeInstanceListGuard(*mut sys::MaaToolkitGamescopeInstanceList);
impl Drop for GamescopeInstanceListGuard {
    fn drop(&mut self) {
        unsafe { sys::MaaToolkitGamescopeInstanceListDestroy(self.0) }
    }
}

/// XDG Desktop Portal ScreenCast helper (Linux only).
///
/// Opens a ScreenCast portal session to obtain a PipeWire stream, whose FD and
/// node ID can be handed to [`crate::controller::Controller::new_linux`] via
/// [`crate::common::LinuxControllerConfig`]'s `pw_socket_fd` / `pw_node_id`.
///
/// On non-Linux platforms, [`PortalHelper::new`] returns
/// [`MaaError::NullPointer`] because the underlying C API is unavailable there.
pub struct PortalHelper {
    handle: *mut sys::MaaToolkitPortalHelper,
}

impl PortalHelper {
    /// Create a new portal helper.
    pub fn new() -> MaaResult<Self> {
        let handle = unsafe { sys::MaaToolkitPortalHelperCreate() };
        if handle.is_null() {
            return Err(MaaError::NullPointer);
        }
        Ok(Self { handle })
    }

    /// Open the ScreenCast portal stream (create DBus session, select sources,
    /// and start the stream).
    pub fn open_stream(&self) -> MaaResult<()> {
        common::check_bool(unsafe { sys::MaaToolkitPortalHelperOpenStream(self.handle) })
    }

    /// Whether the portal session is persistent (i.e. can be restored later).
    pub fn get_persist(&self) -> bool {
        unsafe { sys::MaaToolkitPortalHelperGetPersist(self.handle) != 0 }
    }

    /// Set whether the portal session should persist for later restoration.
    pub fn set_persist(&self, enable: bool) {
        unsafe { sys::MaaToolkitPortalHelperSetPersist(self.handle, enable as sys::MaaBool) };
    }

    /// The PipeWire socket FD, or `-1` if the stream has not been opened yet.
    pub fn get_pipewire_fd(&self) -> i32 {
        unsafe { sys::MaaToolkitPortalHelperGetPipeWireFD(self.handle) }
    }

    /// The PipeWire node ID, or `0` if the stream has not been opened yet.
    pub fn get_pipewire_node_id(&self) -> u32 {
        unsafe { sys::MaaToolkitPortalHelperGetPipeWireNodeID(self.handle) }
    }

    /// The restore token used to restore a persistent session.
    ///
    /// Returns an empty string when no token is available.
    pub fn get_restore_token(&self) -> String {
        let ptr = unsafe { sys::MaaToolkitPortalHelperGetRestoreToken(self.handle) };
        if ptr.is_null() {
            return String::new();
        }
        unsafe { CStr::from_ptr(ptr) }
            .to_string_lossy()
            .into_owned()
    }

    /// Set the restore token to restore a previous portal session.
    pub fn set_restore_token(&self, token: &str) -> MaaResult<()> {
        let c_token = CString::new(token)?;
        unsafe { sys::MaaToolkitPortalHelperSetRestoreToken(self.handle, c_token.as_ptr()) };
        Ok(())
    }
}

impl Drop for PortalHelper {
    fn drop(&mut self) {
        unsafe { sys::MaaToolkitPortalHelperDestroy(self.handle) };
    }
}