Pill View (#1797)

* provider can now check the current session

* More testable code

* created the test condition

* it works but not always not sure why, need to dig deeper

* sadly we need to use textkit 1 to solve this issue

* removed developer option screen test

* this experimental solution kinda works but I need a way to pill recomputation is weird

* format

* display improvement

* better and faster solution

* pilished the code

* better coloring

* swift format

* just need to solve the caching issue

* fix caching issue

* tests done!

* changelog

* pr comments addressed

* all pr comments addressed

* docs

* line lenght

* updated tests and fixed a parsing permalink issue

* MentionBuilder

* pr comments

* swiftformat

* code blocks should not have links

* Update ElementX/Sources/FlowCoordinators/RoomFlowCoordinator.swift

Co-authored-by: Doug <6060466+pixlwave@users.noreply.github.com>

* Update ElementX/Sources/Services/Client/ClientProxy.swift

Co-authored-by: Doug <6060466+pixlwave@users.noreply.github.com>

* Update UnitTests/Sources/AttributedStringBuilderTests.swift

Co-authored-by: Doug <6060466+pixlwave@users.noreply.github.com>

* Update ElementX/Sources/UITests/UITestsAppCoordinator.swift

Co-authored-by: Doug <6060466+pixlwave@users.noreply.github.com>

* Update ElementX/Sources/Other/Pills/PillAttachmentViewProvider.swift

Co-authored-by: Doug <6060466+pixlwave@users.noreply.github.com>

* Update ElementX/Sources/Other/Pills/MentionBuilder.swift

Co-authored-by: Doug <6060466+pixlwave@users.noreply.github.com>

* pr comments

* swiftformat

---------

Co-authored-by: Doug <6060466+pixlwave@users.noreply.github.com>

ElementX/Sources/Other/Pills/PillAttachmentViewProvider.swift

@@ -15,21 +15,52 @@
 //
 
 import SwiftUI
+import SwiftUIIntrospect
 import UIKit
 
 final class PillAttachmentViewProvider: NSTextAttachmentViewProvider {
+    private weak var messageTextView: MessageTextView?
+    
     // MARK: - Override
+    
+    override init(textAttachment: NSTextAttachment, parentView: UIView?, textLayoutManager: NSTextLayoutManager?, location: NSTextLocation) {
+        super.init(textAttachment: textAttachment, parentView: parentView, textLayoutManager: textLayoutManager, location: location)
 
+        // Keep a reference to the parent text view for size adjustments and pills flushing.
+        messageTextView = parentView?.superview as? MessageTextView
+        tracksTextAttachmentViewBounds = true
+    }
+    
+    @MainActor
     override func loadView() {
         super.loadView()
 
-        guard textAttachment is PillTextAttachment else {
-            MXLog.failure("[PillAttachmentViewProvider]: attachment is missing or not of expected class")
+        guard let textAttachmentData = (textAttachment as? PillTextAttachment)?.pillData else {
+            MXLog.failure("[PillAttachmentViewProvider]: attachment is missing data or not of expected class")
             return
         }
-
-        let view = PillView()
+        
+        let viewModel: PillContext
+        let imageProvider: ImageProviderProtocol?
+        if ProcessInfo.isXcodePreview || ProcessInfo.isRunningTests {
+            // The mock viewModel simulates the loading logic for testing purposes
+            viewModel = PillContext.mock(type: .loadUser)
+            imageProvider = MockMediaProvider()
+        } else if let roomContext = messageTextView?.roomContext {
+            viewModel = PillContext(roomContext: roomContext, data: textAttachmentData)
+            imageProvider = roomContext.imageProvider
+        } else {
+            MXLog.failure("[PillAttachmentViewProvider]: missing room context")
+            return
+        }
+        
+        let view = PillView(imageProvider: imageProvider, viewModel: viewModel) { [weak self] in
+            self?.messageTextView?.invalidateTextAttachmentsDisplay(update: true)
+        }
         let controller = UIHostingController(rootView: view)
+        controller.view.backgroundColor = .clear
+        // This allows the text view to handle it as a link
+        controller.view.isUserInteractionEnabled = false
         self.view = controller.view
     }
 }