simplex-chat/apps/ios/Shared/Views/Chat/ChatItem/CICallItemView.swift

//
//  CICallItemView.swift
//  SimpleX (iOS)
//
//  Created by Evgeny on 20/05/2022.
//  Copyright © 2022 SimpleX Chat. All rights reserved.
//
// Spec: spec/client/chat-view.md

import SwiftUI
import SimpleXChat

struct CICallItemView: View {
    @EnvironmentObject var m: ChatModel
    @EnvironmentObject var theme: AppTheme
    @ObservedObject var chat: Chat
    var chatItem: ChatItem
    var status: CICallStatus
    var duration: Int

    var body: some View {
        let sent = chatItem.chatDir.sent
        ItemWithMeta {
            CIMetaView(chat: chat, chatItem: chatItem, metaColor: theme.colors.secondary, showStatus: false, showEdited: false)
        } content: { inlineMeta in
            VStack(spacing: 4) {
                switch status {
                case .pending:
                    if sent {
                        Image(systemName: "phone.arrow.up.right").foregroundColor(theme.colors.secondary)
                    } else {
                        acceptCallButton()
                    }
                case .missed: missedCallIcon(sent).foregroundColor(.red)
                case .rejected: Image(systemName: "phone.down").foregroundColor(.red)
                case .accepted: connectingCallIcon()
                case .negotiated: connectingCallIcon()
                case .progress: Image(systemName: "phone.and.waveform.fill").foregroundColor(.green)
                case .ended: endedCallIcon(sent)
                case .error: missedCallIcon(sent).foregroundColor(.orange)
                }

                if let inlineMeta {
                    inlineMeta
                        .padding(.bottom, 8)
                        .padding(.horizontal, 12)
                }
            }
            .padding(.leading, inlineMeta == nil ? chatItemTextPadding : 0)
            .padding(.bottom, inlineMeta == nil ? 8 : 0)
        }
    }

    private func missedCallIcon(_ sent: Bool) -> some View {
        Image(systemName: sent ? "phone.arrow.up.right" : "phone.arrow.down.left")
    }

    private func connectingCallIcon() -> some View {
        Image(systemName: "phone.connection").foregroundColor(.green)
    }

    private func endedCallIcon(_ sent: Bool) -> some View {
        HStack {
            Image(systemName: "phone.down")
            Text(durationText(duration)).foregroundColor(theme.colors.secondary)
        }
    }


    @ViewBuilder private func acceptCallButton() -> some View {
        if case let .direct(contact) = chat.chatInfo {
            Label("Answer call", systemImage: "phone.arrow.down.left")
                .foregroundColor(theme.colors.primary)
                .simultaneousGesture(TapGesture().onEnded {
                    if let invitation = m.callInvitations[contact.id] {
                        CallController.shared.answerCall(invitation: invitation)
                        logger.debug("acceptCallButton call answered")
                    } else {
                        AlertManager.shared.showAlertMsg(title: "Call already ended!")
                    }
                })
        } else {
            Image(systemName: "phone.arrow.down.left").foregroundColor(theme.colors.secondary)
        }
    }
}

//struct CICallItemView_Previews: PreviewProvider {
//    static var previews: some View {
//        CICallItemView()
//    }
//}