Fetch filters and store in CoreData

Pachyderm/Sources/Pachyderm/Model/Filter.swift

@@ -8,7 +8,7 @@
 
 import Foundation
 
-public class Filter: Decodable {
+public struct Filter: Decodable {
     public let id: String
     public let phrase: String
     private let context: [String]
@@ -51,6 +51,7 @@ extension Filter {
         case notifications
         case `public`
         case thread
+        case account
     }
 }
 

Tusker.xcodeproj/project.pbxproj

@@ -52,6 +52,7 @@
 		D61F759229365C6C00C0B37F /* CollectionViewController.swift in Sources */ = {isa = PBXBuildFile; fileRef = D61F759129365C6C00C0B37F /* CollectionViewController.swift */; };
 		D61F75942936F0DA00C0B37F /* FollowedHashtag.swift in Sources */ = {isa = PBXBuildFile; fileRef = D61F75932936F0DA00C0B37F /* FollowedHashtag.swift */; };
 		D61F75962937037800C0B37F /* ToggleFollowHashtagService.swift in Sources */ = {isa = PBXBuildFile; fileRef = D61F75952937037800C0B37F /* ToggleFollowHashtagService.swift */; };
+		D61F759B29384F9C00C0B37F /* FilterMO.swift in Sources */ = {isa = PBXBuildFile; fileRef = D61F759A29384F9C00C0B37F /* FilterMO.swift */; };
 		D620483423D3801D008A63EF /* LinkTextView.swift in Sources */ = {isa = PBXBuildFile; fileRef = D620483323D3801D008A63EF /* LinkTextView.swift */; };
 		D620483623D38075008A63EF /* ContentTextView.swift in Sources */ = {isa = PBXBuildFile; fileRef = D620483523D38075008A63EF /* ContentTextView.swift */; };
 		D620483823D38190008A63EF /* StatusContentTextView.swift in Sources */ = {isa = PBXBuildFile; fileRef = D620483723D38190008A63EF /* StatusContentTextView.swift */; };
@@ -420,6 +421,7 @@
 		D61F759129365C6C00C0B37F /* CollectionViewController.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = CollectionViewController.swift; sourceTree = "<group>"; };
 		D61F75932936F0DA00C0B37F /* FollowedHashtag.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = FollowedHashtag.swift; sourceTree = "<group>"; };
 		D61F75952937037800C0B37F /* ToggleFollowHashtagService.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = ToggleFollowHashtagService.swift; sourceTree = "<group>"; };
+		D61F759A29384F9C00C0B37F /* FilterMO.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = FilterMO.swift; sourceTree = "<group>"; };
 		D620483323D3801D008A63EF /* LinkTextView.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = LinkTextView.swift; sourceTree = "<group>"; };
 		D620483523D38075008A63EF /* ContentTextView.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = ContentTextView.swift; sourceTree = "<group>"; };
 		D620483723D38190008A63EF /* StatusContentTextView.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = StatusContentTextView.swift; sourceTree = "<group>"; };
@@ -886,6 +888,7 @@
 				D6B9366E2828452F00237D0E /* SavedHashtag.swift */,
 				D6B9366C2828444F00237D0E /* SavedInstance.swift */,
 				D61F75932936F0DA00C0B37F /* FollowedHashtag.swift */,
+				D61F759A29384F9C00C0B37F /* FilterMO.swift */,
 				D60E2F2D244248BF005F8713 /* MastodonCachePersistentStore.swift */,
 				D6B936702829F72900237D0E /* NSManagedObjectContext+Helpers.swift */,
 			);
@@ -1824,6 +1827,7 @@
 				D69693FA25859A8000F4E116 /* ComposeSceneDelegate.swift in Sources */,
 				D6A3BC8A2321F79B00FD64D5 /* AccountTableViewCell.swift in Sources */,
 				D66A77BB233838DC0058F1EC /* UIFont+Traits.swift in Sources */,
+				D61F759B29384F9C00C0B37F /* FilterMO.swift in Sources */,
 				D68FEC4F232C5BC300C84F23 /* SegmentedPageViewController.swift in Sources */,
 				D64AAE9126C80DC600FC57FB /* ToastView.swift in Sources */,
 				D62275AA24F1E01C00B82A16 /* ComposeTextView.swift in Sources */,

Tusker/API/MastodonController.swift

@@ -50,6 +50,7 @@ class MastodonController: ObservableObject {
     @Published private(set) var lists: [List] = []
     @Published private(set) var customEmojis: [Emoji]?
     @Published private(set) var followedHashtags: [FollowedHashtag] = []
+    @Published private(set) var filters: [FilterMO] = []
     
     private var cancellables = Set<AnyCancellable>()
     
@@ -154,6 +155,7 @@ class MastodonController: ObservableObject {
         _ = try await (ownAccount, ownInstance)
         
         loadLists()
+        async let _ = await loadFilters()
     }
     
     func getOwnAccount(completion: ((Result<Account, Client.Error>) -> Void)? = nil) {
@@ -350,6 +352,20 @@ class MastodonController: ObservableObject {
         followedHashtags = (try? persistentContainer.viewContext.fetch(FollowedHashtag.fetchRequest())) ?? []
     }
     
+    @MainActor
+    func loadFilters() async {
+        filters = (try? persistentContainer.viewContext.fetch(FilterMO.fetchRequest())) ?? []
+        
+        let req = Client.getFilters()
+        if let (filters, _) = try? await run(req) {
+            self.persistentContainer.updateFilters(filters) {
+                if case .success(let filters) = $0 {
+                    self.filters = filters
+                }
+            }
+        }
+    }
+    
 }
 
 private struct ListComparator: SortComparator {

Tusker/CoreData/FilterMO.swift

@@ -0,0 +1,66 @@
+//
+//  FilterMO.swift
+//  Tusker
+//
+//  Created by Shadowfacts on 11/30/22.
+//  Copyright © 2022 Shadowfacts. All rights reserved.
+//
+
+import Foundation
+import CoreData
+import Pachyderm
+
+@objc(FilterMO)
+public final class FilterMO: NSManagedObject {
+    
+    @nonobjc public class func fetchRequest() -> NSFetchRequest<FilterMO> {
+        return NSFetchRequest(entityName: "Filter")
+    }
+    
+    @NSManaged public var id: String
+    @NSManaged public var phrase: String
+    @NSManaged private var context: String
+    @NSManaged public var expiresAt: Date?
+    @NSManaged public var irreversible: Bool
+    @NSManaged public var wholeWord: Bool
+    
+    private var _contexts: [Filter.Context]?
+    var contexts: [Filter.Context] {
+        get {
+            if let _contexts {
+                return _contexts
+            } else {
+                _contexts = context.split(separator: ",").compactMap { .init(rawValue: String($0)) }
+                return _contexts!
+            }
+        }
+        set {
+            _contexts = newValue
+            context = newValue.map(\.rawValue).joined(separator: ",")
+        }
+    }
+    
+    public override func didChangeValue(forKey key: String) {
+        super.didChangeValue(forKey: key)
+        if key == "context" {
+            _contexts = nil
+        }
+    }
+    
+}
+
+extension FilterMO {
+    convenience init(apiFilter filter: Filter, context: NSManagedObjectContext) {
+        self.init(context: context)
+        self.updateFrom(apiFilter: filter)
+    }
+    
+    func updateFrom(apiFilter filter: Filter) {
+        self.id = filter.id
+        self.phrase = filter.phrase
+        self.contexts = filter.contexts
+        self.expiresAt = filter.expiresAt
+        self.irreversible = filter.irreversible
+        self.wholeWord = filter.wholeWord
+    }
+}

Tusker/CoreData/MastodonCachePersistentStore.swift

@@ -299,6 +299,29 @@ class MastodonCachePersistentStore: NSPersistentContainer {
         }
     }
     
+    func updateFilters(_ filters: [Filter], completion: @escaping (Result<[FilterMO], Error>) -> Void) {
+        viewContext.perform {
+            do {
+                var all = try self.viewContext.fetch(FilterMO.fetchRequest())
+                
+                let toDelete = all.filter { existing in !filters.contains(where: { $0.id == existing.id }) }.map(\.objectID)
+                if !toDelete.isEmpty {
+                    try self.viewContext.execute(NSBatchDeleteRequest(objectIDs: toDelete))
+                }
+                
+                for filter in filters where !all.contains(where: { $0.id == filter.id }) {
+                    let mo = FilterMO(apiFilter: filter, context: self.viewContext)
+                    all.append(mo)
+                }
+                
+                self.save(context: self.viewContext)
+                completion(.success(all))
+            } catch {
+                completion(.failure(error))
+            }
+        }
+    }
+    
     @objc private func managedObjectsDidChange(_ notification: Foundation.Notification) {
         let changes = hasChangedSavedHashtagsOrInstances(notification)
         if changes.hashtags {

Tusker/CoreData/Tusker.xcdatamodeld/Tusker.xcdatamodel/contents

@@ -28,6 +28,14 @@
             </uniquenessConstraint>
         </uniquenessConstraints>
     </entity>
+    <entity name="Filter" representedClassName="FilterMO" syncable="YES">
+        <attribute name="context" attributeType="String"/>
+        <attribute name="expiresAt" optional="YES" attributeType="Date" usesScalarValueType="NO"/>
+        <attribute name="id" attributeType="String"/>
+        <attribute name="irreversible" attributeType="Boolean" usesScalarValueType="YES"/>
+        <attribute name="phrase" attributeType="String"/>
+        <attribute name="wholeWord" attributeType="Boolean" usesScalarValueType="YES"/>
+    </entity>
     <entity name="FollowedHashtag" representedClassName="FollowedHashtag" syncable="YES">
         <attribute name="name" attributeType="String"/>
         <attribute name="url" attributeType="URI"/>