// Copyright 2022 The Fuchsia Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
library fuchsia.virtualization;
using zx;

type GuestStatus = strict enum {
    NOT_STARTED = 1;
    STARTED = 2;
};
type GuestInfo = struct {
    /// The current guest status.
    guest_status GuestStatus;
};

@discoverable
protocol GuestManager {
    /// Launch a new guest instance
    ///
    /// Returns ZX_ERR_ALREADY_EXISTS if the guest already launched
    /// Returns ZX_ERR_INVALID_ARGS if failed to parse config from the guest package
    LaunchGuest(resource struct {
        guest_config GuestConfig;
        controller server_end:Guest;
    }) -> (struct {}) error zx.status;

    /// Connect to a currently running guest
    ConnectToGuest(resource struct {
        controller server_end:Guest;
    }) -> (struct {}) error zx.status;

    /// Connect to the memory balloon of a currently running guest
    ConnectToBalloon(resource struct {
        controller server_end:BalloonController;
    });

    /// Returns an interface that can be used to access the host vsock endpoint.
    GetHostVsockEndpoint(resource struct {
        endpoint server_end:HostVsockEndpoint;
    });

    /// Query guest info
    @transitional
    GetGuestInfo() -> (resource struct {
        guest_config GuestInfo;
    });
};

// TODO(fxbug.dev/100515): Reconsider the use of composition here
@discoverable
protocol ZirconGuestManager {
    compose GuestManager;
};

@discoverable
protocol DebianGuestManager {
    compose GuestManager;
};

@discoverable
protocol TerminaGuestManager {
    compose GuestManager;
};