76 lines
1.7 KiB
Swift
76 lines
1.7 KiB
Swift
import MultipeerConnectivity
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import Foundation
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struct OwnPeer {
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let peer: MCPeerID
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static var fallback: Self { Self(peer: .init(displayName: "fallback_user")) }
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}
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struct Peer: Identifiable {
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enum ConnectionState {
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case available
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case joined
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case rejected
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case invitationPending
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}
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var id: String {
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mcPeer.displayName
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}
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let mcPeer: MCPeerID
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var state: ConnectionState
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}
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@Observable
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final class NoteEditingSessionServer: NSObject {
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private let session: MCSession
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private let browser: MCNearbyServiceBrowser
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private let ownPeer: OwnPeer
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var visiblePeers: [Peer] = []
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init(peer: OwnPeer) {
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ownPeer = peer
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browser = .init(peer: peer.peer, serviceType: "peered")
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session = .init(peer: peer.peer)
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super.init()
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browser.delegate = self
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}
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func startServer() {
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browser.startBrowsingForPeers()
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}
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func stopServer() {
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browser.stopBrowsingForPeers()
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}
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func invite(peer: Peer) {
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guard peer.state == .available else { return }
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browser.invitePeer(
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peer.mcPeer,
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to: session,
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withContext: nil, // FIXME: put note here?
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timeout: 5
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)
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}
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}
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extension NoteEditingSessionServer: MCNearbyServiceBrowserDelegate {
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func browser(
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_ browser: MCNearbyServiceBrowser,
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foundPeer peerID: MCPeerID,
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withDiscoveryInfo info: [String : String]?
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) {
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guard !visiblePeers.contains(where: { $0.mcPeer == peerID }) && peerID.displayName != ownPeer.peer.displayName else { return }
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let newPeer = Peer(mcPeer: peerID, state: .available)
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visiblePeers.append(newPeer)
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}
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func browser(_ browser: MCNearbyServiceBrowser, lostPeer peerID: MCPeerID) {
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guard let peerIdx = visiblePeers.firstIndex(where: { $0.mcPeer == peerID }) else { return }
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visiblePeers.remove(at: peerIdx)
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}
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}
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