refactor and cleanup [skip ci]

submodules/Postbox/Sources/PendingMessageActionsView.swift

@@ -0,0 +1,53 @@
+
+final class MutablePendingMessageActionsView: MutablePostboxView {
+    let type: PendingMessageActionType
+    var entries: [PendingMessageActionsEntry]
+    
+    init(postbox: Postbox, type: PendingMessageActionType) {
+        self.type = type
+        self.entries = postbox.pendingMessageActionsTable.getActions(type: type)
+    }
+    
+    func replay(postbox: Postbox, transaction: PostboxTransaction) -> Bool {
+        var updated = false
+        for operation in transaction.currentPendingMessageActionsOperations {
+            switch operation {
+                case let .add(type, id, data):
+                    if type == self.type {
+                        var insertIndex = self.entries.count
+                        while insertIndex > 0 {
+                            if self.entries[insertIndex - 1].id < id {
+                                break
+                            }
+                            insertIndex -= 1
+                        }
+                        self.entries.insert(PendingMessageActionsEntry(id: id, action: data), at: insertIndex)
+                        updated = true
+                    }
+                case let .remove(type, id):
+                    if type == self.type {
+                        loop: for i in 0 ..< self.entries.count {
+                            if self.entries[i].id == id {
+                                self.entries.remove(at: i)
+                                updated = true
+                                break loop
+                            }
+                        }
+                    }
+            }
+        }
+        return updated
+    }
+    
+    func immutableView() -> PostboxView {
+        return PendingMessageActionsView(self)
+    }
+}
+
+public final class PendingMessageActionsView: PostboxView {
+    public let entries: [PendingMessageActionsEntry]
+    
+    init(_ view: MutablePendingMessageActionsView) {
+        self.entries = view.entries
+    }
+}