Add ability to fetch and refresh UserProfile. (#33)

facebookarchive · Jul 27, 2016 · 0f03274 · 0f03274
1 parent e41ee3a
commit 0f03274
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Showing 3 changed files with 119 additions and 3 deletions.
diff --git a/FacebookSwift.xcodeproj/project.pbxproj b/FacebookSwift.xcodeproj/project.pbxproj
@@ -35,6 +35,7 @@
 		816B75A71D07AEB70012AC43 /* GraphRequestDataAttachment.swift in Sources */ = {isa = PBXBuildFile; fileRef = 816B75A61D07AEB70012AC43 /* GraphRequestDataAttachment.swift */; };
 		817021AE1D18DE1500ECE7AC /* UserProfile.PictureView.swift in Sources */ = {isa = PBXBuildFile; fileRef = 817021AD1D18DE1500ECE7AC /* UserProfile.PictureView.swift */; };
 		817A0A0E1D07CE8A00FD423A /* GraphRequestResult.swift in Sources */ = {isa = PBXBuildFile; fileRef = 817A0A0D1D07CE8A00FD423A /* GraphRequestResult.swift */; };
+		819E34C61D495A9A000D33E8 /* UserProfile.FetchResult.swift in Sources */ = {isa = PBXBuildFile; fileRef = 81E3C0CB1D48196900C927ED /* UserProfile.FetchResult.swift */; };
 		81AB8A871D36D43100066F63 /* FBSDKCoreKit.framework in Frameworks */ = {isa = PBXBuildFile; fileRef = 81AB8A3D1D36D41700066F63 /* FBSDKCoreKit.framework */; };
 		81AB8A941D36D44C00066F63 /* FBSDKCoreKit.framework in Frameworks */ = {isa = PBXBuildFile; fileRef = 81AB8A3D1D36D41700066F63 /* FBSDKCoreKit.framework */; };
 		81AB8A951D36D44C00066F63 /* FBSDKLoginKit.framework in Frameworks */ = {isa = PBXBuildFile; fileRef = 81AB8A4B1D36D41700066F63 /* FBSDKLoginKit.framework */; };
@@ -429,6 +430,7 @@
 		81D646871D2C8D7800690609 /* LikeControl.swift */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.swift; path = LikeControl.swift; sourceTree = "<group>"; };
 		81D646881D2C8D7800690609 /* SendButton.swift */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.swift; path = SendButton.swift; sourceTree = "<group>"; };
 		81D646891D2C8D7800690609 /* ShareButton.swift */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.swift; path = ShareButton.swift; sourceTree = "<group>"; };
+		81E3C0CB1D48196900C927ED /* UserProfile.FetchResult.swift */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.swift; path = UserProfile.FetchResult.swift; sourceTree = "<group>"; };
 		81FC4B5F1D064F68003F3A46 /* LoginManager.swift */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.swift; path = LoginManager.swift; sourceTree = "<group>"; };
 		81FC4B721D064F8B003F3A46 /* LoginDefaultAudience.swift */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.swift; path = LoginDefaultAudience.swift; sourceTree = "<group>"; };
 		81FC4B7A1D065059003F3A46 /* LoginBehavior.swift */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.swift; path = LoginBehavior.swift; sourceTree = "<group>"; };
@@ -906,6 +908,7 @@
 			isa = PBXGroup;
 			children = (
 				81FC4EF11D068564003F3A46 /* UserProfile.swift */,
+				81E3C0CB1D48196900C927ED /* UserProfile.FetchResult.swift */,
 				817021AD1D18DE1500ECE7AC /* UserProfile.PictureView.swift */,
 			);
 			path = UserProfile;
@@ -1292,6 +1295,7 @@
 				810192AE1D01305400B9E881 /* AppEvent.Builtin.swift in Sources */,
 				810192AF1D01305400B9E881 /* AppEvent.swift in Sources */,
 				810192B41D01305400B9E881 /* AccessToken.swift in Sources */,
+				819E34C61D495A9A000D33E8 /* UserProfile.FetchResult.swift in Sources */,
 				81FC4CAB1D067490003F3A46 /* ReadPermission.swift in Sources */,
 				810192CA1D0139CF00B9E881 /* GraphRequestConnection.Delegate.swift in Sources */,
 				816B75A71D07AEB70012AC43 /* GraphRequestDataAttachment.swift in Sources */,

diff --git a/Sources/Core/UserProfile/UserProfile.FetchResult.swift b/Sources/Core/UserProfile/UserProfile.FetchResult.swift
@@ -0,0 +1,47 @@
+// Copyright (c) 2016-present, Facebook, Inc. All rights reserved.
+//
+// You are hereby granted a non-exclusive, worldwide, royalty-free license to use,
+// copy, modify, and distribute this software in source code or binary form for use
+// in connection with the web services and APIs provided by Facebook.
+//
+// As with any software that integrates with the Facebook platform, your use of
+// this software is subject to the Facebook Developer Principles and Policies
+// [http://developers.facebook.com/policy/]. This copyright notice shall be
+// included in all copies or substantial portions of the software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+// FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+// COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+// IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+// CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+
+import FBSDKCoreKit
+
+extension UserProfile {
+  /**
+   Describes the result of a fetch of `UserProfile`.
+   */
+  public enum FetchResult {
+    /// Profile was succesfully fetched.
+    case Success(UserProfile)
+    /// Profile fetch failed.
+    case Failed(ErrorType)
+  }
+}
+
+extension UserProfile.FetchResult {
+
+  internal init(sdkProfile: FBSDKProfile?, error: NSError?) {
+    if let error = error {
+      self = .Failed(error)
+    } else if let sdkProfile = sdkProfile {
+      let profile = UserProfile(sdkProfile: sdkProfile)
+      self = .Success(profile)
+    } else {
+      //FIXME: (nlutsenko) Use a good error type here.
+      let error = NSError(domain: "", code: 42, userInfo: nil)
+      self = .Failed(error)
+    }
+  }
+}
diff --git a/Sources/Core/UserProfile/UserProfile.swift b/Sources/Core/UserProfile/UserProfile.swift
@@ -85,6 +85,68 @@ public struct UserProfile {
   }
 }
 
+//--------------------------------------
+// MARK: - Loading Profile
+//--------------------------------------
+
+extension UserProfile {
+
+  /// Convenience alias for type of closure that is used as a completion for fetching `UserProfile`.
+  public typealias Completion = (FetchResult) -> Void
+
+  /**
+   Fetches a user profile by userId.
+
+   If the `current` profile is set, and it has the same `userId`,
+   calling method will reset the current profile with the newly fetched one.
+
+   - parameter userId:     Facebook user id of the profile to fetch.
+   - parameter completion: The closure to be executed once the profile is refreshed.
+   */
+  public static func fetch(userId userId: String, completion: Completion) {
+    let request = GraphRequest(graphPath: userId,
+                               parameters: ["fields" : "first_name,middle_name,last_name,name,link"],
+                               httpMethod: .GET)
+    request.start { (httpResponse, result) in
+      switch result {
+      case .Success(let response):
+        let responseDictionary = response.dictionaryValue
+
+        let profile = UserProfile(userId: userId,
+          firstName: responseDictionary?["first_name"] as? String,
+          middleName: responseDictionary?["middle_name"] as? String,
+          lastName: responseDictionary?["last_name"] as? String,
+          fullName: responseDictionary?["name"] as? String,
+          profileURL: (responseDictionary?["link"] as? String).flatMap({ NSURL(string: $0) }),
+          refreshDate: NSDate())
+
+        // Reset the current profile if userId matches
+        if AccessToken.current?.userId == userId {
+          UserProfile.current = profile
+        }
+        completion(.Success(profile))
+
+      case .Failed(let error):
+        completion(.Failed(error))
+      }
+    }
+  }
+
+  /**
+   Refreshes the existing user profile.
+
+   If the `current` profile is set, and receiver has the same `userId`,
+   calling method will reset the current profile with the newly fetched one.
+
+   - parameter completion: Optional closure to be executed once the profile is refreshed. Default: `nil`.
+   */
+  public func refresh(completion: Completion? = nil) {
+    UserProfile.fetch(userId: userId) { result in
+      completion?(result)
+    }
+  }
+}
+
 //--------------------------------------
 // MARK: - Current Profile
 //--------------------------------------
@@ -111,9 +173,12 @@ extension UserProfile {
 
    - parameter completion: The closure to be executed once the profile is loaded.
    */
-  public static func loadCurrent(completion: ((UserProfile?, ErrorType?) -> Void)?) {
-    FBSDKProfile.loadCurrentProfileWithCompletion { (profile: FBSDKProfile?, error: NSError?) in
-      completion?(profile.map(UserProfile.init), error)
+  public static func loadCurrent(completion: Completion?) {
+    FBSDKProfile.loadCurrentProfileWithCompletion { (sdkProfile: FBSDKProfile?, error: NSError?) in
+      if let completion = completion {
+        let result = FetchResult(sdkProfile: sdkProfile, error: error)
+        completion(result)
+      }
     }
   }