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marionbarkermarionbarker
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Merge pull request #342 from loopandlearn/bg-contact
Contact image with bg information
2 parents 97113d1 + 0b8ebd7 commit afa3478

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10 files changed

+353
-3
lines changed

10 files changed

+353
-3
lines changed

‎LoopFollow.xcodeproj/project.pbxproj‎

Lines changed: 28 additions & 0 deletions
Original file line numberDiff line numberDiff line change
@@ -48,6 +48,9 @@
4848
DD493AE52ACF2383009A6922 /* Treatments.swift in Sources */ = {isa = PBXBuildFile; fileRef = DD493AE42ACF2383009A6922 /* Treatments.swift */; };
4949
DD493AE72ACF23CF009A6922 /* DeviceStatus.swift in Sources */ = {isa = PBXBuildFile; fileRef = DD493AE62ACF23CF009A6922 /* DeviceStatus.swift */; };
5050
DD493AE92ACF2445009A6922 /* BGData.swift in Sources */ = {isa = PBXBuildFile; fileRef = DD493AE82ACF2445009A6922 /* BGData.swift */; };
51+
DD50C7502D0828800057AE6F /* ContactSettingsViewModel.swift in Sources */ = {isa = PBXBuildFile; fileRef = DD50C74F2D0828800057AE6F /* ContactSettingsViewModel.swift */; };
52+
DD50C7532D0828D10057AE6F /* ContactSettingsView.swift in Sources */ = {isa = PBXBuildFile; fileRef = DD50C7522D0828D10057AE6F /* ContactSettingsView.swift */; };
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DD50C7552D0862770057AE6F /* ContactImageUpdater.swift in Sources */ = {isa = PBXBuildFile; fileRef = DD50C7542D0862770057AE6F /* ContactImageUpdater.swift */; };
5154
DD5334212C60EBEE00062F9D /* InsulinCartridgeChange.swift in Sources */ = {isa = PBXBuildFile; fileRef = DD5334202C60EBEE00062F9D /* InsulinCartridgeChange.swift */; };
5255
DD5334232C60ED3600062F9D /* IAge.swift in Sources */ = {isa = PBXBuildFile; fileRef = DD5334222C60ED3600062F9D /* IAge.swift */; };
5356
DD5334272C61668800062F9D /* InfoDisplaySettingsViewModel.swift in Sources */ = {isa = PBXBuildFile; fileRef = DD5334262C61668700062F9D /* InfoDisplaySettingsViewModel.swift */; };
@@ -286,6 +289,9 @@
286289
DD493AE42ACF2383009A6922 /* Treatments.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = Treatments.swift; sourceTree = "<group>"; };
287290
DD493AE62ACF23CF009A6922 /* DeviceStatus.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = DeviceStatus.swift; sourceTree = "<group>"; };
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DD493AE82ACF2445009A6922 /* BGData.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = BGData.swift; sourceTree = "<group>"; };
292+
DD50C74F2D0828800057AE6F /* ContactSettingsViewModel.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = ContactSettingsViewModel.swift; sourceTree = "<group>"; };
293+
DD50C7522D0828D10057AE6F /* ContactSettingsView.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = ContactSettingsView.swift; sourceTree = "<group>"; };
294+
DD50C7542D0862770057AE6F /* ContactImageUpdater.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = ContactImageUpdater.swift; sourceTree = "<group>"; };
289295
DD5334202C60EBEE00062F9D /* InsulinCartridgeChange.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = InsulinCartridgeChange.swift; sourceTree = "<group>"; };
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DD5334222C60ED3600062F9D /* IAge.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = IAge.swift; sourceTree = "<group>"; };
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DD5334262C61668700062F9D /* InfoDisplaySettingsViewModel.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = InfoDisplaySettingsViewModel.swift; sourceTree = "<group>"; };
@@ -602,6 +608,24 @@
602608
path = Treatments;
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sourceTree = "<group>";
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};
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DD50C74D2D0828250057AE6F /* Contact */ = {
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isa = PBXGroup;
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children = (
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DD50C7512D0828B40057AE6F /* Settings */,
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DD50C7542D0862770057AE6F /* ContactImageUpdater.swift */,
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);
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path = Contact;
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sourceTree = "<group>";
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};
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DD50C7512D0828B40057AE6F /* Settings */ = {
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isa = PBXGroup;
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children = (
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DD50C74F2D0828800057AE6F /* ContactSettingsViewModel.swift */,
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DD50C7522D0828D10057AE6F /* ContactSettingsView.swift */,
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);
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path = Settings;
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sourceTree = "<group>";
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};
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DD5334252C61667700062F9D /* InfoDisplaySettings */ = {
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isa = PBXGroup;
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children = (
@@ -832,6 +856,7 @@
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FC8DEEE32485D1680075863F /* LoopFollow */ = {
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isa = PBXGroup;
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children = (
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DD50C74D2D0828250057AE6F /* Contact */,
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DD5334252C61667700062F9D /* InfoDisplaySettings */,
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DD0C0C6E2C4AFFB800DBADDF /* Remote */,
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DD0C0C692C4852A100DBADDF /* Metric */,
@@ -1257,6 +1282,7 @@
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DD13BC752C3FD6210062313B /* InfoType.swift in Sources */,
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DDCF979C24C14EFB002C9752 /* AdvancedSettingsViewController.swift in Sources */,
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DDD10EFF2C510C3C00D76A8E /* ObservableUserDefaultsValue.swift in Sources */,
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DD50C7502D0828800057AE6F /* ContactSettingsViewModel.swift in Sources */,
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FC97881C2485969B00A7906C /* MainViewController.swift in Sources */,
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DD6A935E2BFA6FA2003FFB8E /* DeviceStatusOpenAPS.swift in Sources */,
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DD493AD52ACF2109009A6922 /* ResumePump.swift in Sources */,
@@ -1266,6 +1292,7 @@
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FC9788182485969B00A7906C /* AppDelegate.swift in Sources */,
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DDD10F072C529DE800D76A8E /* Observable.swift in Sources */,
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DD608A0C2C27415C00F91132 /* BackgroundAlertManager.swift in Sources */,
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DD50C7532D0828D10057AE6F /* ContactSettingsView.swift in Sources */,
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DD4878082C7B30BF0048F05C /* RemoteSettingsView.swift in Sources */,
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DD0C0C6B2C48562000DBADDF /* InsulinMetric.swift in Sources */,
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DD493AD92ACF2171009A6922 /* Carbs.swift in Sources */,
@@ -1295,6 +1322,7 @@
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DD0C0C642C45A59400DBADDF /* HKUnit+Extensions.swift in Sources */,
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DDCF979A24C14DB4002C9752 /* WatchSettingsViewController.swift in Sources */,
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DD493AE52ACF2383009A6922 /* Treatments.swift in Sources */,
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DD50C7552D0862770057AE6F /* ContactImageUpdater.swift in Sources */,
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DDD10F012C510C6B00D76A8E /* ObservableUserDefaults.swift in Sources */,
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DD16AF0D2C98485400FB655A /* SecureStorageValue.swift in Sources */,
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FCA2DDE62501095000254A8C /* Timers.swift in Sources */,

‎LoopFollow/Contact/ContactImageUpdater.swift‎

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@@ -0,0 +1,103 @@
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//
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// ContactImageUpdater.swift
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// LoopFollow
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//
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// Created by Jonas Björkert on 2024-12-10.
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// Copyright © 2024 Jon Fawcett. All rights reserved.
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//
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import Foundation
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import Contacts
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import UIKit
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class ContactImageUpdater {
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private let contactStore = CNContactStore()
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private let queue = DispatchQueue(label: "ContactImageUpdaterQueue")
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func updateContactImage(bgValue: String, extra: String, stale: Bool) {
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queue.async {
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guard CNContactStore.authorizationStatus(for: .contacts) == .authorized else {
20+
print("Access to contacts is not authorized.")
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return
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}
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guard let imageData = self.generateContactImage(bgValue: bgValue, extra: extra, stale: stale)?.pngData() else {
25+
print("Failed to generate contact image.")
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return
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}
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let bundleDisplayName = Bundle.main.object(forInfoDictionaryKey: "CFBundleDisplayName") as? String ?? "LoopFollow"
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let contactName = "\(bundleDisplayName) - BG"
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let predicate = CNContact.predicateForContacts(matchingName: contactName)
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let keysToFetch = [CNContactGivenNameKey, CNContactFamilyNameKey, CNContactImageDataKey] as [CNKeyDescriptor]
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do {
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let contacts = try self.contactStore.unifiedContacts(matching: predicate, keysToFetch: keysToFetch)
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37+
if let contact = contacts.first, let mutableContact = contact.mutableCopy() as? CNMutableContact {
38+
mutableContact.imageData = imageData
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let saveRequest = CNSaveRequest()
40+
saveRequest.update(mutableContact)
41+
try self.contactStore.execute(saveRequest)
42+
print("Contact image updated successfully.")
43+
} else {
44+
let newContact = CNMutableContact()
45+
newContact.givenName = contactName
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newContact.imageData = imageData
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let saveRequest = CNSaveRequest()
48+
saveRequest.add(newContact, toContainerWithIdentifier: nil)
49+
try self.contactStore.execute(saveRequest)
50+
print("New contact created with updated image.")
51+
}
52+
} catch {
53+
print("Failed to update or create contact: \(error)")
54+
}
55+
}
56+
}
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private func generateContactImage(bgValue: String, extra: String, stale: Bool) -> UIImage? {
59+
let size = CGSize(width: 300, height: 300)
60+
UIGraphicsBeginImageContextWithOptions(size, false, 0)
61+
guard let context = UIGraphicsGetCurrentContext() else { return nil }
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UIColor.black.setFill()
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context.fill(CGRect(origin: .zero, size: size))
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let paragraphStyle = NSMutableParagraphStyle()
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paragraphStyle.alignment = .center
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let maxFontSize: CGFloat = extra.isEmpty ? 200 : 160
70+
let fontSize = maxFontSize - CGFloat(bgValue.count * 15)
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var bgAttributes: [NSAttributedString.Key: Any] = [
73+
.font: UIFont.boldSystemFont(ofSize: fontSize),
74+
.foregroundColor: stale ? UIColor.gray : UIColor.white,
75+
.paragraphStyle: paragraphStyle
76+
]
77+
78+
if stale {
79+
bgAttributes[.strikethroughStyle] = NSUnderlineStyle.single.rawValue
80+
}
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82+
let extraAttributes: [NSAttributedString.Key: Any] = [
83+
.font: UIFont.systemFont(ofSize: 90),
84+
.foregroundColor: UIColor.white,
85+
.paragraphStyle: paragraphStyle
86+
]
87+
88+
let bgRect = extra.isEmpty
89+
? CGRect(x: 0, y: 46, width: size.width, height: size.height - 80)
90+
: CGRect(x: 0, y: 26, width: size.width, height: size.height / 2)
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bgValue.draw(in: bgRect, withAttributes: bgAttributes)
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94+
if !extra.isEmpty {
95+
let extraRect = CGRect(x: 0, y: size.height / 2 + 6, width: size.width, height: size.height / 2 - 20)
96+
extra.draw(in: extraRect, withAttributes: extraAttributes)
97+
}
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let image = UIGraphicsGetImageFromCurrentImageContext()
100+
UIGraphicsEndImageContext()
101+
return image
102+
}
103+
}

‎LoopFollow/Contact/Settings/ContactSettingsView.swift‎

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//
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// ContactSettingsView.swift
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// LoopFollow
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//
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// Created by Jonas Björkert on 2024-12-10.
6+
// Copyright © 2024 Jon Fawcett. All rights reserved.
7+
//
8+
9+
import SwiftUI
10+
import Contacts
11+
12+
struct ContactSettingsView: View {
13+
@ObservedObject var viewModel: ContactSettingsViewModel
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@Environment(\.presentationMode) var presentationMode
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@State private var showAlert: Bool = false
17+
@State private var alertTitle: String = ""
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@State private var alertMessage: String = ""
19+
20+
var body: some View {
21+
NavigationView {
22+
Form {
23+
Section(header: Text("Contact Integration")) {
24+
Text("Add the contact named '\(viewModel.contactName)' to your watch face to show the current BG value in real time. Make sure to give the app full access to Contacts when prompted.")
25+
.font(.footnote)
26+
.foregroundColor(.secondary)
27+
.padding(.vertical, 4)
28+
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Toggle("Enable Contact BG Updates", isOn: $viewModel.contactEnabled)
30+
.toggleStyle(SwitchToggleStyle())
31+
.onChange(of: viewModel.contactEnabled) { isEnabled in
32+
if isEnabled {
33+
requestContactAccess()
34+
}
35+
}
36+
}
37+
38+
if viewModel.contactEnabled {
39+
Section(header: Text("Additional Information")) {
40+
Toggle("Show Trend", isOn: $viewModel.contactTrend)
41+
.toggleStyle(SwitchToggleStyle())
42+
.onChange(of: viewModel.contactTrend) { isTrendEnabled in
43+
if isTrendEnabled {
44+
viewModel.contactDelta = false
45+
}
46+
}
47+
48+
Toggle("Show Delta", isOn: $viewModel.contactDelta)
49+
.toggleStyle(SwitchToggleStyle())
50+
.onChange(of: viewModel.contactDelta) { isDeltaEnabled in
51+
if isDeltaEnabled {
52+
viewModel.contactTrend = false
53+
}
54+
}
55+
}
56+
}
57+
}
58+
.navigationBarTitle("Contact Settings", displayMode: .inline)
59+
.toolbar {
60+
ToolbarItem(placement: .navigationBarTrailing) {
61+
Button("Done") {
62+
presentationMode.wrappedValue.dismiss()
63+
}
64+
}
65+
}
66+
.alert(isPresented: $showAlert) {
67+
Alert(title: Text(alertTitle), message: Text(alertMessage), dismissButton: .default(Text("OK")))
68+
}
69+
}
70+
}
71+
72+
private func requestContactAccess() {
73+
let contactStore = CNContactStore()
74+
let status = CNContactStore.authorizationStatus(for: .contacts)
75+
76+
if status == .authorized {
77+
// Already authorized, do nothing
78+
} else if status == .notDetermined {
79+
contactStore.requestAccess(for: .contacts) { granted, error in
80+
DispatchQueue.main.async {
81+
if !granted {
82+
viewModel.contactEnabled = false
83+
showAlert(title: "Access Denied", message: "Please allow access to Contacts in Settings to enable this feature.")
84+
}
85+
}
86+
}
87+
} else if status == .denied {
88+
viewModel.contactEnabled = false
89+
showAlert(title: "Access Denied", message: "Access to Contacts is denied. Please go to Settings and enable Contacts access.")
90+
} else if status == .restricted {
91+
viewModel.contactEnabled = false
92+
showAlert(title: "Access Restricted", message: "Access to Contacts is restricted.")
93+
} else {
94+
viewModel.contactEnabled = false
95+
showAlert(title: "Error", message: "An unknown error occurred while checking Contacts access.")
96+
}
97+
}
98+
99+
private func showAlert(title: String, message: String) {
100+
alertTitle = title
101+
alertMessage = message
102+
showAlert = true
103+
}
104+
}

‎LoopFollow/Contact/Settings/ContactSettingsViewModel.swift‎

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//
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// ContactSettingsViewModel.swift
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// LoopFollow
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//
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// Created by Jonas Björkert on 2024-12-10.
6+
// Copyright © 2024 Jon Fawcett. All rights reserved.
7+
//
8+
9+
import Foundation
10+
import Combine
11+
12+
extension Bundle {
13+
var displayName: String {
14+
return object(forInfoDictionaryKey: "CFBundleDisplayName") as? String ?? "LoopFollow"
15+
}
16+
}
17+
18+
class ContactSettingsViewModel: ObservableObject {
19+
var contactName: String {
20+
"\(Bundle.main.displayName) - BG"
21+
}
22+
23+
@Published var contactEnabled: Bool {
24+
didSet {
25+
storage.contactEnabled.value = contactEnabled
26+
triggerRefresh()
27+
}
28+
}
29+
30+
@Published var contactTrend: Bool {
31+
didSet {
32+
if contactTrend {
33+
contactDelta = false
34+
}
35+
storage.contactTrend.value = contactTrend
36+
triggerRefresh()
37+
}
38+
}
39+
40+
@Published var contactDelta: Bool {
41+
didSet {
42+
if contactDelta {
43+
contactTrend = false
44+
}
45+
storage.contactDelta.value = contactDelta
46+
triggerRefresh()
47+
}
48+
}
49+
50+
private let storage = ObservableUserDefaults.shared
51+
private var cancellables = Set<AnyCancellable>()
52+
53+
init() {
54+
self.contactEnabled = storage.contactEnabled.value
55+
self.contactTrend = storage.contactTrend.value
56+
self.contactDelta = storage.contactDelta.value
57+
58+
storage.contactEnabled.$value
59+
.assign(to: &$contactEnabled)
60+
61+
storage.contactTrend.$value
62+
.assign(to: &$contactTrend)
63+
64+
storage.contactDelta.$value
65+
.assign(to: &$contactDelta)
66+
}
67+
68+
private func triggerRefresh() {
69+
NotificationCenter.default.post(name: NSNotification.Name("refresh"), object: nil)
70+
}
71+
}

‎LoopFollow/Controllers/Graphs.swift‎

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@@ -1795,6 +1795,7 @@ extension MainViewController {
17951795
}
17961796

17971797
func wrapText(_ text: String, maxLineLength: Int) -> String {
1798+
return text
17981799
var lines: [String] = []
17991800
var currentLine = ""
18001801

‎LoopFollow/Controllers/Nightscout/BGData.swift‎

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Original file line numberDiff line numberDiff line change
@@ -286,6 +286,19 @@ extension MainViewController {
286286
snoozer.BGLabel.text = snoozerBG
287287
snoozer.DirectionLabel.text = snoozerDirection
288288
snoozer.DeltaLabel.text = snoozerDelta
289+
290+
// Update contact
291+
if ObservableUserDefaults.shared.contactEnabled.value {
292+
var extra: String = ""
293+
294+
if ObservableUserDefaults.shared.contactTrend.value {
295+
extra = snoozerDirection
296+
} else if ObservableUserDefaults.shared.contactDelta.value {
297+
extra = snoozerDelta
298+
}
299+
300+
self.contactImageUpdater.updateContactImage(bgValue: bgTextStr, extra: extra, stale: deltaTime >= 12)
301+
}
289302
}
290303
}
291304
}

‎LoopFollow/Info.plist‎

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@@ -95,6 +95,8 @@
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<array>
9696
<string>UIInterfaceOrientationPortrait</string>
9797
</array>
98+
<key>NSContactsUsageDescription</key>
99+
<string>This app requires access to contacts to update a contact image with real-time blood glucose information.</string>
98100
<key>UISupportedInterfaceOrientations~ipad</key>
99101
<array>
100102
<string>UIInterfaceOrientationPortrait</string>

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