Implement basic sending logic

SessionShareExtension/ShareVC.swift

@@ -4,6 +4,7 @@ import SessionUIKit
 
 final class ShareVC : UINavigationController, ShareViewDelegate, AppModeManagerDelegate {
     private var areVersionMigrationsComplete = false
+    public static var attachmentPrepPromise: Promise<[SignalAttachment]>?
     
     // MARK: Error
     enum ShareViewControllerError: Error {
@@ -201,7 +202,7 @@ final class ShareVC : UINavigationController, ShareViewDelegate, AppModeManagerD
     private func showMainContent() {
         let threadPickerVC = ThreadPickerVC()
         setViewControllers([ threadPickerVC ], animated: false)
-        buildAttachments().retainUntilComplete()
+        ShareVC.attachmentPrepPromise = buildAttachments()
     }
     
     func shareViewWasUnlocked() {
@@ -546,29 +547,7 @@ final class ShareVC : UINavigationController, ShareViewDelegate, AppModeManagerD
 
         guard !SignalAttachment.isInvalidVideo(dataSource: dataSource, dataUTI: specificUTIType) else {
             // This can happen, e.g. when sharing a quicktime-video from iCloud drive.
-
-            let (promise, exportSession) = SignalAttachment.compressVideoAsMp4(dataSource: dataSource, dataUTI: specificUTIType)
-
-            /*
-            // TODO: How can we move waiting for this export to the end of the share flow rather than having to do it up front?
-            // Ideally we'd be able to start it here, and not block the UI on conversion unless there's still work to be done
-            // when the user hits "send".
-            if let exportSession = exportSession {
-                let progressPoller = ProgressPoller(timeInterval: 0.1, ratioCompleteBlock: { return exportSession.progress })
-                self.progressPoller = progressPoller
-                progressPoller.startPolling()
-
-                guard let loadViewController = self.loadViewController else {
-                    owsFailDebug("load view controller was unexpectedly nil")
-                    return promise
-                }
-
-                DispatchQueue.main.async {
-                    loadViewController.progress = progressPoller.progress
-                }
-            }
-             */
-
+            let (promise, _) = SignalAttachment.compressVideoAsMp4(dataSource: dataSource, dataUTI: specificUTIType)
             return promise
         }
 

SessionShareExtension/ThreadPickerVC.swift

@@ -1,8 +1,9 @@
 import SessionUIKit
 
-final class ThreadPickerVC : UIViewController, UITableViewDataSource {
+final class ThreadPickerVC : UIViewController, UITableViewDataSource, UITableViewDelegate, AttachmentApprovalViewControllerDelegate {
     private var threads: YapDatabaseViewMappings!
     private var threadViewModelCache: [String:ThreadViewModel] = [:] // Thread ID to ThreadViewModel
+    private var selectedThread: TSThread?
     
     private var threadCount: UInt {
         threads.numberOfItems(inGroup: TSInboxGroup)
@@ -53,6 +54,7 @@ final class ThreadPickerVC : UIViewController, UITableViewDataSource {
         navigationItem.titleView = titleLabel
         // Table view
         tableView.dataSource = self
+        tableView.delegate = self
         view.addSubview(tableView)
         tableView.pin(to: view)
         view.addSubview(fadeView)
@@ -89,9 +91,32 @@ final class ThreadPickerVC : UIViewController, UITableViewDataSource {
     
     // MARK: Interaction
     func tableView(_ tableView: UITableView, didSelectRowAt indexPath: IndexPath) {
-        guard let thread = self.thread(at: indexPath.row) else { return }
-        // TODO: Send the attachment
+        guard let thread = self.thread(at: indexPath.row), let attachments = ShareVC.attachmentPrepPromise?.value else { return }
+        self.selectedThread = thread
         tableView.deselectRow(at: indexPath, animated: true)
+        let approvalVC = AttachmentApprovalViewController.wrappedInNavController(attachments: attachments, approvalDelegate: self)
+        navigationController!.present(approvalVC, animated: true, completion: nil)
+    }
+    
+    func attachmentApproval(_ attachmentApproval: AttachmentApprovalViewController, didApproveAttachments attachments: [SignalAttachment], messageText: String?) {
+        let message = VisibleMessage()
+        message.sentTimestamp = NSDate.millisecondTimestamp()
+        message.text = messageText
+        let tsMessage = TSOutgoingMessage.from(message, associatedWith: selectedThread!)
+        Storage.write { transaction in
+            tsMessage.save(with: transaction)
+        }
+        Storage.write { transaction in
+            MessageSender.sendNonDurably(message, with: attachments, in: self.selectedThread!, using: transaction).retainUntilComplete()
+        }
+    }
+
+    func attachmentApprovalDidCancel(_ attachmentApproval: AttachmentApprovalViewController) {
+        
+    }
+
+    func attachmentApproval(_ attachmentApproval: AttachmentApprovalViewController, didChangeMessageText newMessageText: String?) {
+        
     }
     
     // MARK: Convenience