Add following/unfollowing accounts

Pachyderm/Client.swift

@@ -138,8 +138,8 @@ public class Client {
         return Request<[Status]>(method: .get, path: "/api/v1/favourites")
     }
     
-    public func getRelationships(accounts: [Account]? = nil) -> Request<[Relationship]> {
+    public func getRelationships(accounts: [String]? = nil) -> Request<[Relationship]> {
-        return Request<[Relationship]>(method: .get, path: "/api/v1/accounts/relationships", queryParameters: "id" => accounts?.map { $0.id })
+        return Request<[Relationship]>(method: .get, path: "/api/v1/accounts/relationships", queryParameters: "id" => accounts)
     }
     
     public func getInstance() -> Request<Instance> {

Pachyderm/Model/Account.swift

@@ -63,12 +63,12 @@ public class Account: Decodable {
         return request
     }
     
-    public static func follow(_ account: Account) -> Request<Relationship> {
+    public static func follow(_ accountID: String) -> Request<Relationship> {
-        return Request<Relationship>(method: .post, path: "/api/v1/accounts/\(account.id)/follow")
+        return Request<Relationship>(method: .post, path: "/api/v1/accounts/\(accountID)/follow")
     }
     
-    public static func unfollow(_ account: Account) -> Request<Relationship> {
+    public static func unfollow(_ accountID: String) -> Request<Relationship> {
-        return Request<Relationship>(method: .post, path: "/api/v1/accounts/\(account.id)/unfollow")
+        return Request<Relationship>(method: .post, path: "/api/v1/accounts/\(accountID)/unfollow")
     }
     
     public static func block(_ account: Account) -> Request<Relationship> {

Pachyderm/Model/Relationship.swift

@@ -12,7 +12,7 @@ public class Relationship: Decodable {
     public let id: String
     public let following: Bool
     public let followedBy: Bool
-    public let blocked: Bool
+    public let blocking: Bool
     public let muting: Bool
     public let mutingNotifications: Bool
     public let followRequested: Bool
@@ -23,7 +23,7 @@ public class Relationship: Decodable {
         case id
         case following
         case followedBy = "followed_by"
-        case blocked
+        case blocking
         case muting
         case mutingNotifications = "muting_notifications"
         case followRequested = "requested"

Tusker/MastodonCache.swift

@@ -13,6 +13,7 @@ class MastodonCache {
     
     private static let statuses = NSCache<NSString, Status>()
     private static let accounts = NSCache<NSString, Account>()
+    private static let relationships = NSCache<NSString, Relationship>()
     
     // MARK: - Statuses
     static func status(for id: String) -> Status? {
@@ -76,4 +77,34 @@ class MastodonCache {
         accounts.forEach(add)
     }
     
+    // MARK: - Relationships
+    static func relationship(for id: String) -> Relationship? {
+        return relationships.object(forKey: id as NSString)
+    }
+    
+    static func set(relationship: Relationship, id: String) {
+        relationships.setObject(relationship, forKey: id as NSString)
+    }
+    
+    static func relationship(for id: String, completion: @escaping (Relationship?) -> Void) {
+        let request = MastodonController.shared.client.getRelationships(accounts: [id])
+        MastodonController.shared.client.run(request) { response in
+            guard case let .success(relationships, _) = response,
+                let relationship = relationships.first else {
+                completion(nil)
+                return
+            }
+            set(relationship: relationship, id: relationship.id)
+            completion(relationship)
+        }
+    }
+    
+    static func add(relationship: Relationship) {
+        set(relationship: relationship, id: relationship.id)
+    }
+    
+    static func addAll(relationships: [Relationship]) {
+        relationships.forEach(add)
+    }
+    
 }

Tusker/Screens/Profile/ProfileTableViewController.swift

@@ -187,7 +187,32 @@ extension ProfileTableViewController: ProfileHeaderTableViewCellDelegate {
             self.sendMessageMentioning()
         }))
         alert.addAction(UIAlertAction(title: "Cancel", style: .cancel, handler: nil))
-        present(alert, animated: true)
+
+        MastodonCache.relationship(for: account.id) { (relationship) in
+            guard let relationship = relationship else {
+                DispatchQueue.main.async {
+                    self.present(alert, animated: true)
+                }
+                return
+            }
+            let title = relationship.following ? "Unfollow": "Follow"
+            DispatchQueue.main.async {
+                alert.addAction(UIAlertAction(title: title, style: .default, handler: { (_) in
+                    UIImpactFeedbackGenerator(style: .medium).impactOccurred()
+                    let request = (relationship.following ? Account.unfollow : Account.follow)(account.id)
+                    MastodonController.shared.client.run(request, completion: { (response) in
+                        if case let .success(relationship, _) = response {
+                            MastodonCache.add(relationship: relationship)
+                        } else {
+                            // todo: display error message
+                            UINotificationFeedbackGenerator().notificationOccurred(.error)
+                            fatalError()
+                        }
+                    })
+                }))
+                self.present(alert, animated: true)
+            }
+        }
     }
     
 }

Tusker/Views/Profile Header/ProfileHeaderTableViewCell.swift

@@ -19,12 +19,13 @@ class ProfileHeaderTableViewCell: UITableViewCell, PreferencesAdaptive {
     
     var delegate: ProfileHeaderTableViewCellDelegate?
 
-    @IBOutlet weak var displayNameLabel: UILabel!
+    @IBOutlet weak var headerImageView: UIImageView!
-    @IBOutlet weak var usernameLabel: UILabel!
-    @IBOutlet weak var noteLabel: HTMLContentLabel!
     @IBOutlet weak var avatarContainerView: UIView!
     @IBOutlet weak var avatarImageView: UIImageView!
-    @IBOutlet weak var headerImageView: UIImageView!
+    @IBOutlet weak var displayNameLabel: UILabel!
+    @IBOutlet weak var usernameLabel: UILabel!
+    @IBOutlet weak var followsYouLabel: UILabel!
+    @IBOutlet weak var noteLabel: HTMLContentLabel!
     
     var accountID: String!
     
@@ -77,6 +78,16 @@ class ProfileHeaderTableViewCell: UITableViewCell, PreferencesAdaptive {
         // todo: HTML parsing
         noteLabel.text = account.note
         noteLabel.delegate = self
+        
+        if let relationship = MastodonCache.relationship(for: accountID) {
+            followsYouLabel.isHidden = !relationship.followedBy
+        } else {
+            MastodonCache.relationship(for: accountID) { relationship in
+                DispatchQueue.main.async {
+                    self.followsYouLabel.isHidden = !(relationship?.followedBy ?? false)
+                }
+            }
+        }
     }
     
     override func prepareForReuse() {

Tusker/Views/Profile Header/ProfileHeaderTableViewCell.xib

@@ -1,10 +1,10 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<document type="com.apple.InterfaceBuilder3.CocoaTouch.XIB" version="3.0" toolsVersion="14313.13.2" targetRuntime="iOS.CocoaTouch" propertyAccessControl="none" useAutolayout="YES" useTraitCollections="YES" useSafeAreas="YES" colorMatched="YES">
+<document type="com.apple.InterfaceBuilder3.CocoaTouch.XIB" version="3.0" toolsVersion="14313.18" targetRuntime="iOS.CocoaTouch" propertyAccessControl="none" useAutolayout="YES" useTraitCollections="YES" useSafeAreas="YES" colorMatched="YES">
     <device id="retina4_7" orientation="portrait">
         <adaptation id="fullscreen"/>
     </device>
     <dependencies>
-        <plugIn identifier="com.apple.InterfaceBuilder.IBCocoaTouchPlugin" version="14283.9"/>
+        <plugIn identifier="com.apple.InterfaceBuilder.IBCocoaTouchPlugin" version="14283.14"/>
         <capability name="Safe area layout guides" minToolsVersion="9.0"/>
         <capability name="documents saved in the Xcode 8 format" minToolsVersion="8.0"/>
     </dependencies>
@@ -12,7 +12,7 @@
         <placeholder placeholderIdentifier="IBFilesOwner" id="-1" userLabel="File's Owner"/>
         <placeholder placeholderIdentifier="IBFirstResponder" id="-2" customClass="UIResponder"/>
         <view contentMode="scaleToFill" id="iN0-l3-epB" customClass="ProfileHeaderTableViewCell" customModule="Tusker" customModuleProvider="target">
-            <rect key="frame" x="0.0" y="0.0" width="375" height="270"/>
+            <rect key="frame" x="0.0" y="0.0" width="375" height="296"/>
             <autoresizingMask key="autoresizingMask" widthSizable="YES" heightSizable="YES"/>
             <subviews>
                 <imageView clipsSubviews="YES" userInteractionEnabled="NO" contentMode="scaleAspectFill" horizontalHuggingPriority="251" verticalHuggingPriority="251" translatesAutoresizingMaskIntoConstraints="NO" id="Fw7-OL-iy5">
@@ -21,24 +21,6 @@
                         <constraint firstAttribute="height" constant="150" id="y43-4B-slK"/>
                     </constraints>
                 </imageView>
-                <label opaque="NO" userInteractionEnabled="NO" contentMode="left" horizontalHuggingPriority="251" verticalHuggingPriority="251" text="Display name" textAlignment="natural" lineBreakMode="tailTruncation" baselineAdjustment="alignBaselines" adjustsFontSizeToFit="NO" translatesAutoresizingMaskIntoConstraints="NO" id="LjK-72-Bez">
-                    <rect key="frame" x="144" y="158" width="215" height="24"/>
-                    <fontDescription key="fontDescription" type="system" pointSize="20"/>
-                    <nil key="textColor"/>
-                    <nil key="highlightedColor"/>
-                </label>
-                <label opaque="NO" userInteractionEnabled="NO" contentMode="left" horizontalHuggingPriority="251" text="Note" lineBreakMode="tailTruncation" numberOfLines="0" baselineAdjustment="alignBaselines" adjustsFontSizeToFit="NO" translatesAutoresizingMaskIntoConstraints="NO" id="I0n-aP-dJP" customClass="HTMLContentLabel" customModule="Tusker" customModuleProvider="target">
-                    <rect key="frame" x="16" y="215" width="343" height="39"/>
-                    <fontDescription key="fontDescription" type="system" pointSize="17"/>
-                    <nil key="textColor"/>
-                    <nil key="highlightedColor"/>
-                </label>
-                <label opaque="NO" userInteractionEnabled="NO" contentMode="left" horizontalHuggingPriority="251" verticalHuggingPriority="251" text="@username" textAlignment="natural" lineBreakMode="tailTruncation" baselineAdjustment="alignBaselines" adjustsFontSizeToFit="NO" translatesAutoresizingMaskIntoConstraints="NO" id="MIj-OR-NOR">
-                    <rect key="frame" x="144" y="190" width="215" height="17"/>
-                    <fontDescription key="fontDescription" type="system" pointSize="14"/>
-                    <color key="textColor" cocoaTouchSystemColor="darkTextColor"/>
-                    <nil key="highlightedColor"/>
-                </label>
                 <view contentMode="scaleToFill" translatesAutoresizingMaskIntoConstraints="NO" id="KyB-ey-l11">
                     <rect key="frame" x="16" y="90" width="120" height="120"/>
                     <subviews>
@@ -59,6 +41,35 @@
                         <constraint firstItem="tH8-sR-DHC" firstAttribute="centerY" secondItem="KyB-ey-l11" secondAttribute="centerY" id="nYu-RE-MfA"/>
                     </constraints>
                 </view>
+                <label opaque="NO" userInteractionEnabled="NO" contentMode="left" horizontalHuggingPriority="251" verticalHuggingPriority="251" text="Display name" textAlignment="natural" lineBreakMode="tailTruncation" baselineAdjustment="alignBaselines" adjustsFontSizeToFit="NO" translatesAutoresizingMaskIntoConstraints="NO" id="LjK-72-Bez">
+                    <rect key="frame" x="144" y="158" width="215" height="24"/>
+                    <fontDescription key="fontDescription" type="system" pointSize="20"/>
+                    <nil key="textColor"/>
+                    <nil key="highlightedColor"/>
+                </label>
+                <label opaque="NO" userInteractionEnabled="NO" contentMode="left" horizontalHuggingPriority="251" verticalHuggingPriority="251" text="@username" textAlignment="natural" lineBreakMode="tailTruncation" baselineAdjustment="alignBaselines" adjustsFontSizeToFit="NO" translatesAutoresizingMaskIntoConstraints="NO" id="MIj-OR-NOR">
+                    <rect key="frame" x="144" y="190" width="215" height="17"/>
+                    <fontDescription key="fontDescription" type="system" pointSize="14"/>
+                    <color key="textColor" cocoaTouchSystemColor="darkTextColor"/>
+                    <nil key="highlightedColor"/>
+                </label>
+                <stackView opaque="NO" contentMode="scaleToFill" axis="vertical" alignment="top" spacing="8" translatesAutoresizingMaskIntoConstraints="NO" id="DfO-uD-UNI">
+                    <rect key="frame" x="16" y="218" width="343" height="70"/>
+                    <subviews>
+                        <label hidden="YES" opaque="NO" userInteractionEnabled="NO" contentMode="left" horizontalHuggingPriority="251" verticalHuggingPriority="251" text="Follows you" textAlignment="natural" lineBreakMode="tailTruncation" baselineAdjustment="alignBaselines" adjustsFontSizeToFit="NO" translatesAutoresizingMaskIntoConstraints="NO" id="a32-1a-xXZ">
+                            <rect key="frame" x="0.0" y="0.0" width="75.5" height="0.0"/>
+                            <fontDescription key="fontDescription" type="system" pointSize="14"/>
+                            <color key="textColor" white="0.33333333333333331" alpha="1" colorSpace="custom" customColorSpace="genericGamma22GrayColorSpace"/>
+                            <nil key="highlightedColor"/>
+                        </label>
+                        <label opaque="NO" userInteractionEnabled="NO" contentMode="left" horizontalHuggingPriority="251" text="Note" lineBreakMode="tailTruncation" numberOfLines="0" baselineAdjustment="alignBaselines" adjustsFontSizeToFit="NO" translatesAutoresizingMaskIntoConstraints="NO" id="I0n-aP-dJP" customClass="HTMLContentLabel" customModule="Tusker" customModuleProvider="target">
+                            <rect key="frame" x="0.0" y="0.0" width="37" height="70"/>
+                            <fontDescription key="fontDescription" type="system" pointSize="17"/>
+                            <nil key="textColor"/>
+                            <nil key="highlightedColor"/>
+                        </label>
+                    </subviews>
+                </stackView>
                 <button opaque="NO" alpha="0.59999999999999998" contentMode="scaleToFill" contentHorizontalAlignment="center" contentVerticalAlignment="center" lineBreakMode="middleTruncation" translatesAutoresizingMaskIntoConstraints="NO" id="qiv-gB-kiX">
                     <rect key="frame" x="309" y="117" width="50" height="25"/>
                     <constraints>
@@ -75,22 +86,22 @@
             <color key="backgroundColor" red="1" green="1" blue="1" alpha="1" colorSpace="custom" customColorSpace="sRGB"/>
             <constraints>
                 <constraint firstItem="Fw7-OL-iy5" firstAttribute="top" secondItem="vUN-kp-3ea" secondAttribute="top" id="0fI-0y-cXG"/>
+                <constraint firstItem="vUN-kp-3ea" firstAttribute="trailing" secondItem="DfO-uD-UNI" secondAttribute="trailing" constant="16" id="ASp-mh-SFv"/>
                 <constraint firstItem="KyB-ey-l11" firstAttribute="centerY" secondItem="Fw7-OL-iy5" secondAttribute="bottom" id="AXr-6X-FJ8"/>
                 <constraint firstItem="vUN-kp-3ea" firstAttribute="trailing" secondItem="MIj-OR-NOR" secondAttribute="trailing" constant="16" id="AwT-Vi-CLa"/>
                 <constraint firstItem="LjK-72-Bez" firstAttribute="leading" secondItem="KyB-ey-l11" secondAttribute="trailing" constant="8" id="CIO-tn-hJC"/>
-                <constraint firstItem="I0n-aP-dJP" firstAttribute="leading" secondItem="vUN-kp-3ea" secondAttribute="leading" constant="16" id="JlW-us-7Wd"/>
                 <constraint firstItem="LjK-72-Bez" firstAttribute="top" secondItem="Fw7-OL-iy5" secondAttribute="bottom" constant="8" id="Kvl-sz-Lv3"/>
+                <constraint firstItem="DfO-uD-UNI" firstAttribute="top" secondItem="KyB-ey-l11" secondAttribute="bottom" constant="8" id="Ljh-8x-yI3"/>
                 <constraint firstItem="Fw7-OL-iy5" firstAttribute="trailing" secondItem="vUN-kp-3ea" secondAttribute="trailing" id="LqH-lE-AIe"/>
                 <constraint firstItem="KyB-ey-l11" firstAttribute="leading" secondItem="vUN-kp-3ea" secondAttribute="leading" constant="16" id="NN7-5B-k1Q"/>
-                <constraint firstItem="vUN-kp-3ea" firstAttribute="trailing" secondItem="I0n-aP-dJP" secondAttribute="trailing" constant="16" id="aaC-xJ-vvs"/>
+                <constraint firstItem="vUN-kp-3ea" firstAttribute="bottom" secondItem="DfO-uD-UNI" secondAttribute="bottom" constant="8" id="aj3-iF-QBe"/>
                 <constraint firstItem="Fw7-OL-iy5" firstAttribute="leading" secondItem="vUN-kp-3ea" secondAttribute="leading" id="d1j-6d-hBb"/>
                 <constraint firstItem="vUN-kp-3ea" firstAttribute="trailing" secondItem="LjK-72-Bez" secondAttribute="trailing" constant="16" id="hn9-c3-iNH"/>
                 <constraint firstItem="MIj-OR-NOR" firstAttribute="leading" secondItem="KyB-ey-l11" secondAttribute="trailing" constant="8" id="iG7-yZ-9u3"/>
                 <constraint firstItem="MIj-OR-NOR" firstAttribute="top" secondItem="LjK-72-Bez" secondAttribute="bottom" constant="8" id="nMM-6t-bjX"/>
-                <constraint firstItem="vUN-kp-3ea" firstAttribute="bottom" secondItem="I0n-aP-dJP" secondAttribute="bottom" constant="16" id="nPu-bH-pLA"/>
                 <constraint firstAttribute="trailing" secondItem="qiv-gB-kiX" secondAttribute="trailing" constant="16" id="nYG-p6-Ezm"/>
                 <constraint firstItem="qiv-gB-kiX" firstAttribute="bottom" secondItem="Fw7-OL-iy5" secondAttribute="bottom" constant="-8" id="pg7-L7-u2f"/>
-                <constraint firstItem="I0n-aP-dJP" firstAttribute="top" secondItem="MIj-OR-NOR" secondAttribute="bottom" constant="8" id="upb-uc-3BZ"/>
+                <constraint firstItem="DfO-uD-UNI" firstAttribute="leading" secondItem="vUN-kp-3ea" secondAttribute="leading" constant="16" id="pqd-E3-Aw4"/>
             </constraints>
             <freeformSimulatedSizeMetrics key="simulatedDestinationMetrics"/>
             <viewLayoutGuide key="safeArea" id="vUN-kp-3ea"/>
@@ -98,11 +109,12 @@
                 <outlet property="avatarContainerView" destination="KyB-ey-l11" id="45s-jV-l8L"/>
                 <outlet property="avatarImageView" destination="tH8-sR-DHC" id="6ll-yL-g1o"/>
                 <outlet property="displayNameLabel" destination="LjK-72-Bez" id="nIU-ey-H1C"/>
+                <outlet property="followsYouLabel" destination="a32-1a-xXZ" id="phY-0L-NnN"/>
                 <outlet property="headerImageView" destination="Fw7-OL-iy5" id="6sv-E5-D73"/>
                 <outlet property="noteLabel" destination="I0n-aP-dJP" id="7yW-mE-jxY"/>
                 <outlet property="usernameLabel" destination="MIj-OR-NOR" id="e1I-N7-rKx"/>
             </connections>
-            <point key="canvasLocation" x="40.799999999999997" y="98.950524737631198"/>
+            <point key="canvasLocation" x="40.799999999999997" y="110.64467766116942"/>
         </view>
     </objects>
     <resources>