Indicate verified profile links

Closes #241

Pachyderm/Sources/Pachyderm/Model/Account.swift

@@ -167,5 +167,12 @@ extension Account {
     public struct Field: Codable {
         public let name: String
         public let value: String
+        public let verifiedAt: Date?
+        
+        enum CodingKeys: String, CodingKey {
+            case name
+            case value
+            case verifiedAt = "verified_at"
+        }
     }
 }

Tusker/Views/Profile Header/ProfileFieldsView.swift

@@ -7,13 +7,15 @@
 //
 
 import UIKit
+import Pachyderm
+import SwiftUI
 
 class ProfileFieldsView: UIView {
     
     weak var delegate: ProfileHeaderViewDelegate?
     
     private let stack = UIStackView()
-    private var fieldViews: [(EmojiLabel, ContentTextView)] = []
+    private var fieldViews: [(EmojiLabel, ProfileFieldValueView)] = []
     private var fieldConstraints: [NSLayoutConstraint] = []
     
     private var isUsingSingleColumn: Bool = false
@@ -80,16 +82,11 @@ class ProfileFieldsView: UIView {
             nameLabel.setEmojis(account.emojis, identifier: account.id)
             nameLabel.setContentCompressionResistancePriority(.defaultLow, for: .horizontal)
             
-            let valueTextView = ContentTextView()
-            valueTextView.isSelectable = false
-            valueTextView.defaultFont = .preferredFont(forTextStyle: .body)
-            valueTextView.adjustsFontForContentSizeCategory = true
-            valueTextView.setTextFromHtml(field.value)
-            valueTextView.setEmojis(account.emojis, identifier: account.id)
-            valueTextView.navigationDelegate = delegate
-            valueTextView.setContentCompressionResistancePriority(.defaultLow, for: .horizontal)
+            let valueView = ProfileFieldValueView(field: field, account: account)
+            valueView.navigationDelegate = delegate
+            valueView.setContentCompressionResistancePriority(.defaultLow, for: .horizontal)
             
-            fieldViews.append((nameLabel, valueTextView))
+            fieldViews.append((nameLabel, valueView))
         }
         
         configureFields()
@@ -121,7 +118,7 @@ class ProfileFieldsView: UIView {
                 }
                 name.textAlignment = .natural
                 stack.addArrangedSubview(name)
-                value.textAlignment = .natural
+                value.setTextAlignment(.natural)
                 stack.addArrangedSubview(value)
             }
         } else {
@@ -137,7 +134,7 @@ class ProfileFieldsView: UIView {
                 name.textAlignment = .right
                 name.translatesAutoresizingMaskIntoConstraints = false
                 
-                value.textAlignment = .left
+                value.setTextAlignment(.left)
                 value.translatesAutoresizingMaskIntoConstraints = false
                 
                 let fieldContainer = UIView()
@@ -165,3 +162,159 @@ class ProfileFieldsView: UIView {
     }
     
 }
+
+private class ProfileFieldValueView: UIView {
+    weak var navigationDelegate: TuskerNavigationDelegate? {
+        didSet {
+            textView.navigationDelegate = navigationDelegate
+        }
+    }
+    
+    private let account: AccountMO
+    private let field: Account.Field
+    
+    private let textView = ContentTextView()
+    private var iconView: UIView?
+    
+    init(field: Account.Field, account: AccountMO) {
+        self.account = account
+        self.field = field
+        
+        super.init(frame: .zero)
+        
+        textView.isSelectable = false
+        textView.defaultFont = .preferredFont(forTextStyle: .body)
+        textView.adjustsFontForContentSizeCategory = true
+        textView.setTextFromHtml(field.value)
+        textView.setEmojis(account.emojis, identifier: account.id)
+        textView.setContentCompressionResistancePriority(.defaultLow, for: .horizontal)
+        textView.translatesAutoresizingMaskIntoConstraints = false
+        addSubview(textView)
+        
+        let textViewTrailingConstraint: NSLayoutConstraint
+        
+        if field.verifiedAt != nil {
+            var config = UIButton.Configuration.plain()
+            config.image = UIImage(systemName: "checkmark")
+            config.baseForegroundColor = .systemGreen
+            let icon = UIButton(configuration: config)
+            self.iconView = icon
+            icon.translatesAutoresizingMaskIntoConstraints = false
+            icon.setContentHuggingPriority(.defaultHigh, for: .horizontal)
+            icon.addTarget(self, action: #selector(verifiedIconTapped), for: .touchUpInside)
+            icon.isPointerInteractionEnabled = true
+            icon.accessibilityLabel = "Verified link"
+            addSubview(icon)
+            textViewTrailingConstraint = textView.trailingAnchor.constraint(equalTo: icon.leadingAnchor, constant: -4)
+            NSLayoutConstraint.activate([
+                icon.centerYAnchor.constraint(equalTo: centerYAnchor),
+                icon.trailingAnchor.constraint(equalTo: trailingAnchor),
+            ])
+        } else {
+            textViewTrailingConstraint = textView.trailingAnchor.constraint(equalTo: trailingAnchor)
+        }
+        
+        NSLayoutConstraint.activate([
+            textView.leadingAnchor.constraint(equalTo: leadingAnchor),
+            textViewTrailingConstraint,
+            textView.topAnchor.constraint(equalTo: topAnchor),
+            textView.bottomAnchor.constraint(equalTo: bottomAnchor),
+        ])
+        
+    }
+    
+    required init?(coder: NSCoder) {
+        fatalError("init(coder:) has not been implemented")
+    }
+    
+    func setTextAlignment(_ alignment: NSTextAlignment) {
+        textView.textAlignment = alignment
+    }
+    
+    @objc private func verifiedIconTapped() {
+        guard let navigationDelegate else {
+            return
+        }
+        let view = ProfileFieldVerificationView(
+            acct: account.acct,
+            verifiedAt: field.verifiedAt!,
+            linkText: textView.text,
+            navigationDelegate: navigationDelegate
+        )
+        let host = UIHostingController(rootView: view)
+        let toPresent: UIViewController
+        if traitCollection.horizontalSizeClass == .compact || traitCollection.verticalSizeClass == .compact {
+            toPresent = UINavigationController(rootViewController: host)
+            toPresent.modalPresentationStyle = .pageSheet
+            let sheetPresentationController = toPresent.sheetPresentationController!
+            sheetPresentationController.detents = [
+                .medium()
+            ]
+        } else {
+            host.modalPresentationStyle = .popover
+            let popoverPresentationController = host.popoverPresentationController!
+            popoverPresentationController.sourceView = iconView
+            host.preferredContentSize = host.sizeThatFits(in: CGSize(width: 400, height: CGFloat.infinity))
+            toPresent = host
+        }
+        navigationDelegate.present(toPresent, animated: true)
+    }
+}
+
+private struct ProfileFieldVerificationView: View {
+    let acct: String
+    let verifiedAt: Date
+    let linkText: String
+    let navigationDelegate: TuskerNavigationDelegate
+    
+    var body: some View {
+        VStack(alignment: .leading, spacing: 8) {
+            firstLine
+            secondLine
+        }
+        .padding()
+        .navigationTitle(Text("Verified Link"))
+        .navigationBarTitleDisplayMode(.inline)
+        .toolbar {
+            ToolbarItem(placement: .cancellationAction) {
+                Button("Done") {
+                    navigationDelegate.dismiss(animated: true)
+                }
+            }
+        }
+        .environment(\.openURL, OpenURLAction(handler: { url in
+            // dismiss the sheet/popover first
+            navigationDelegate.dismiss(animated: true) {
+                navigationDelegate.selected(url: url)
+            }
+            return .handled
+        }))
+    }
+    
+    private var firstLine: Text {
+        var attrStr: AttributedString = "This link has been verified by your instance, "
+        var instance = AttributedString(navigationDelegate.apiController!.instanceURL.host!)
+        instance.font = .body.bold()
+        attrStr += instance
+        attrStr += "."
+        return Text(attrStr)
+    }
+    
+    private var secondLine: Text {
+        var attrStr: AttributedString = "The page at "
+        var linkStr: AttributedString
+        if linkText.count > 43 {
+            linkStr = AttributedString(linkText.prefix(40) + "…")
+        } else {
+            linkStr = AttributedString(linkText)
+        }
+        linkStr.link = URL(string: linkText)
+        attrStr += linkStr
+        attrStr += " was confirmed to link back to "
+        var acctStr = AttributedString("@\(acct)")
+        acctStr.font = .body.bold()
+        attrStr += acctStr
+        attrStr += AttributedString(" as of \(verifiedAt.formatted(date: .abbreviated, time: .shortened)).")
+        return Text(attrStr)
+    }
+}