Trying to display contacts in LaunchBar sorted by distance … but struggle with async part

nearbyContacts.swift

#!/usr/bin/env swift

/*
 Contacts Location Action for LaunchBar
 by Christian Bender (@ptujec)
 2022-05-05

 Copyright see: https://github.com/Ptujec/LaunchBar/blob/master/LICENSE

 */

import AppKit
import Contacts
import CoreLocation
import Foundation

let arguments = Array(CommandLine.arguments.dropFirst())
// let arguments = [String]()
var argument = ""

if arguments.count == 0 {
    argument = "My Location" // Should be current location
    // https://www.zerotoappstore.com/how-to-get-current-location-in-swift.html
} else {
    argument = arguments[0]
}

var resultJSON = [[String: Any]]()

let keysToFetch = [CNContactGivenNameKey, CNContactFamilyNameKey, CNContactPostalAddressesKey, CNContactOrganizationNameKey] as [CNKeyDescriptor]

var contacts = [CNContact]()
let request = CNContactFetchRequest(keysToFetch: keysToFetch)
let contactStore = CNContactStore()

do {
    // // Only Contacts that fit argument
    // let predicate = CNContact.predicateForContacts(matchingName: arguments[0])
    // // let predicate = CNContact.predicateForContacts(matchingName: "Schneider") //     change later to get all contacts and use argument for Address

    // let contacts = try contactStore.unifiedContacts(matching: predicate, keysToFetch: keysToFetch)

    // print(contacts)
    // if contacts.count == 0 {
    //     exit(0)
    // }

    // All Contacts
    try contactStore.enumerateContacts(with: request) {
        contact, _ in
        // Array containing all unified contacts from everywhere
        contacts.append(contact)
    }

    for contact in contacts {
//    print(contact)

        var contactName = ""

        // TODO: Ersetzen mit PersonNameComponentsFormatter oder  CNContactFormatter ? https://swiftwombat.com/how-to-use-personnamecomponentsformatter-in-swift/
        // https://developer.apple.com/documentation/foundation/personnamecomponentsformatter

        if contact.familyName.isEmpty && contact.givenName.isEmpty {
            contactName = contact.organizationName
        } else if !contact.familyName.isEmpty && !contact.givenName.isEmpty {
            contactName = "\(contact.givenName) \(contact.familyName)"
        } else if !contact.familyName.isEmpty && contact.givenName.isEmpty {
            contactName = contact.familyName
        } else if contact.familyName.isEmpty && !contact.givenName.isEmpty {
            contactName = contact.givenName
        }

        let contactAddressCount = contact.postalAddresses.count

//    print(contactAddressCount)

        var contactAddressString = ""

        if contactAddressCount > 0 { // wenn kein FamilyName dann Firma
            let contactAddress = contact.postalAddresses[0]
            contactAddressString = CNPostalAddressFormatter
                .string(from: contactAddress.value, style: .mailingAddress)
                .replacingOccurrences(of: "\n", with: ", ")

            // Insert Code for Distance form Contact Address to Address enter by argument[0] or default (current address)

            //            --------------------------------------

//            func getCoordinates(from address: String, completion: @escaping ((CLLocationCoordinate2D) -> Void)) {
//                let geoCoder = CLGeocoder()
//                geoCoder.geocodeAddressString(address) { placemarks, _ in
//                    guard let placemarks = placemarks, let location = placemarks.first?.location else { return }
//                    DispatchQueue.main.async {
//                        completion(location.coordinate)
//                    }
//                }
//            }
//
//            var coo1: CLLocation = CLLocation(latitude: 0.0, longitude: 0.0)
//
//            getCoordinates(from: contactAddressString) { location in
//
//                coo1 = CLLocation(latitude: location.latitude, longitude: location.longitude)
//
//                var coo2 = CLLocation(latitude: 0, longitude: 0)
//
//                getCoordinates(from: argument) { location in
//                    coo2 = CLLocation(latitude: location.latitude, longitude: location.longitude)
//
//                    print(coo2)
//
//                    let distanceInMeters = coo1.distance(from: coo2) // result is in meters
//                    let distanceInKm = distanceInMeters / 1000
//
//                    let formatter = NumberFormatter()
//                    formatter.maximumFractionDigits = 1
//                    formatter.minimumFractionDigits = 0
//
//                    let distanceNice = formatter.string(for: distanceInKm)
//
//                    print("Distanz: \(distanceNice!) km")
//                }
//            }

            //            --------------------------------------

            let contactJSON = [
                "title": contactName,
                "subtitle": contactAddressString,
                "badge": "Distance to \(argument)", // Distance goes here e.g. "1,5 Km"
                "icon": "contactTemplate",
            ]
            resultJSON.append(contactJSON)
        }
    }

    func dictSort(dict1: [String: Any], dict2: [String: Any]) -> Bool {
        guard let i0 = dict1["title"] as? String, // change title to badge when there is an actuall value
              let i1 = dict2["title"] as? String else { return false }

        return i0 < i1
    }

    let sortedArray = resultJSON.sorted { dictSort(dict1: $0, dict2: $1) }

    // Serialize to JSON
    let jsonData = try JSONSerialization.data(withJSONObject: sortedArray)

    // Convert to a string and print
    if let JSONString = String(data: jsonData, encoding: String.Encoding.utf8) {
        print(JSONString)
    }

} catch {
    NSLog("Failed to fetch contact, error: \(error)")
}

Thanks. Now I see my mistake. I did not understand that main.swift needed to be in "Sources/…"

Ah, right. I forgot to mention that. Sorry about that.

No worries. Glad it works. First time using a debugger ;) I set a breakpoint at line 151 and got "No debug session". On line 141 there are results … I can actually quicklook the coordinates. So it seems like the second getCoordinates is a problem somehow?