Watch: what changed on Recent cards and the thread screen, search in All threads, a switching complication with Allow and Deny in the Smart Stack, and question options on notifications

watch/WristCode/API/Models.swift

@@ -157,6 +157,8 @@ struct FeedItem: Codable, Hashable, Sendable, Identifiable {
     /// What a working thread is doing right now. Nil when nothing is in progress, and from older
     /// gateways.
     var activity: Activity? = nil
+    /// What the latest run changed, in total. Nil when it changed no files, and from older gateways.
+    var changes: ChangeTotals? = nil
 
     var id: String { "\(hostId)/\(threadId)" }
     var route: Route { .thread(hostId: hostId, threadId: threadId) }
@@ -189,6 +191,62 @@ struct Activity: Codable, Hashable, Sendable {
     var startedAt: Date?
 }
 
+/// What a thread's latest run changed, in total, for the line on a Recent card.
+struct ChangeTotals: Codable, Hashable, Sendable {
+    var files: Int
+    var additions: Int
+    var deletions: Int
+
+    /// "+42", "−8" and "3 files", the pieces of the card's "+42 −8 · 3 files".
+    var parts: (additions: String, deletions: String, files: String) {
+        ("+\(additions)", "\u{2212}\(deletions)", files == 1 ? "1 file" : "\(files) files")
+    }
+}
+
+/// A file the latest run changed. `name` is the last part of `path`.
+struct ChangedFile: Codable, Hashable, Sendable, Identifiable {
+    var path: String
+    var name: String
+    var additions: Int
+    var deletions: Int
+
+    var id: String { path }
+}
+
+/// A thread search hit: the thread, and the text around the match when it was inside a message.
+struct SearchHit: Codable, Hashable, Sendable, Identifiable {
+    var thread: ThreadRow
+    var projectTitle: String
+    var hostLabel: String
+    /// Nil when only the title matched.
+    var snippet: String?
+
+    var id: String { thread.id }
+}
+
+/// `GET /v1/search?q=`: hits from every online host, newest match first.
+struct SearchResponse: Codable, Hashable, Sendable {
+    var hits: [SearchHit]
+    /// Labels of hosts that were offline or failed, so their threads were not searched.
+    var unsearched: [String]
+
+    /// The line under the results naming the hosts left out, such as "Laptop is offline, so its
+    /// threads were not searched." `offline` holds the labels of hosts the watch knows are offline;
+    /// any other host failed or was too slow, which the gateway does not tell apart.
+    static func unsearchedNote(_ labels: [String], offline: Set<String>) -> String? {
+        guard !labels.isEmpty else { return nil }
+        let names: String = switch labels.count {
+        case 1: labels[0]
+        case 2: "\(labels[0]) and \(labels[1])"
+        default: labels.dropLast().joined(separator: ", ") + " and " + labels[labels.count - 1]
+        }
+        guard labels.allSatisfy(offline.contains) else { return "\(names) could not be searched." }
+        return labels.count == 1
+            ? "\(names) is offline, so its threads were not searched."
+            : "\(names) are offline, so their threads were not searched."
+    }
+}
+
 /// A thread in a list: a project's threads, or a thread's subagents.
 struct ThreadRow: Codable, Hashable, Sendable, Identifiable {
     var hostId: String
@@ -277,13 +335,26 @@ struct SettleRecentResponse: Codable, Hashable, Sendable {
     var failed: Int
 }
 
-/// `GET /v1/summary`: the counts behind the complication.
+/// `GET /v1/summary`: what the complication and the Smart Stack widget show.
 struct Summary: Codable, Hashable, Sendable {
     struct Next: Codable, Hashable, Sendable {
         var hostId: String
         var threadId: String
         var title: String
         var hostLabel: String
+        /// The command it wants to run or its first question, trimmed. Nil until the gateway has read
+        /// it, and from older gateways.
+        var request: String? = nil
+
+        var route: Route { .thread(hostId: hostId, threadId: threadId) }
+    }
+
+    /// The working thread updated most recently, with what it is doing.
+    struct Current: Codable, Hashable, Sendable {
+        var hostId: String
+        var threadId: String
+        var title: String
+        var activity: Activity?
 
         var route: Route { .thread(hostId: hostId, threadId: threadId) }
     }
@@ -292,18 +363,24 @@ struct Summary: Codable, Hashable, Sendable {
     var working: Int
     /// The thread that has waited longest for you.
     var next: Next?
+    /// Nil when nothing is working, and from older gateways.
+    var current: Current? = nil
     var hostsOffline: Int
 }
 
 extension Summary {
-    /// The same counts worked out from a feed. The feed lists needs-you oldest request first, so its
-    /// first item is the one that has waited longest.
+    /// The same summary worked out from a feed. The feed lists needs-you oldest request first, so its
+    /// first item is the one that has waited longest, and working newest first.
     init(_ feed: Feed) {
         let next = feed.needsYou.first
+        let current = feed.working.first
         self.init(
             needsYou: feed.needsYou.count,
             working: feed.working.count,
-            next: next.map { Next(hostId: $0.hostId, threadId: $0.threadId, title: $0.title, hostLabel: $0.hostLabel) },
+            next: next.map {
+                Next(hostId: $0.hostId, threadId: $0.threadId, title: $0.title, hostLabel: $0.hostLabel, request: $0.request?.summary)
+            },
+            current: current.map { Current(hostId: $0.hostId, threadId: $0.threadId, title: $0.title, activity: $0.activity) },
             hostsOffline: feed.hosts.filter { $0.status != .online }.count)
     }
 }
@@ -336,14 +413,16 @@ struct ThreadDetail: Codable, Hashable, Sendable {
     var earlierCursor: String? = nil
     /// Subagents and delegated threads this thread started, newest first.
     var subagents: [ThreadRow] = []
+    /// The files the latest run changed, most lines changed first.
+    var changedFiles: [ChangedFile] = []
 }
 
 extension ThreadDetail {
     private enum CodingKeys: String, CodingKey {
-        case item, messages, canStop, askFirst, earlierCursor, subagents
+        case item, messages, canStop, askFirst, earlierCursor, subagents, changedFiles
     }
 
-    /// `subagents` is newer than the rest, so a gateway that leaves it out lists none.
+    /// `subagents` and `changedFiles` are newer than the rest, so a gateway that leaves them out lists none.
     init(from decoder: any Decoder) throws {
         let container = try decoder.container(keyedBy: CodingKeys.self)
         self.init(
@@ -352,7 +431,8 @@ extension ThreadDetail {
             canStop: try container.decode(Bool.self, forKey: .canStop),
             askFirst: try container.decodeIfPresent(Bool.self, forKey: .askFirst),
             earlierCursor: try container.decodeIfPresent(String.self, forKey: .earlierCursor),
-            subagents: try container.decodeIfPresent([ThreadRow].self, forKey: .subagents) ?? [])
+            subagents: try container.decodeIfPresent([ThreadRow].self, forKey: .subagents) ?? [],
+            changedFiles: try container.decodeIfPresent([ChangedFile].self, forKey: .changedFiles) ?? [])
     }
 }
 
@@ -605,7 +685,7 @@ struct SendMessageRequest: Codable, Sendable {
     var text: String
 }
 
-enum RespondRequest: Encodable, Sendable {
+enum RespondRequest: Encodable, Equatable, Sendable {
     /// One question's answer: an option value or typed text, or option values for a multi-select question.
     enum Answer: Encodable, Hashable, Sendable {
         case text(String)
@@ -657,6 +737,31 @@ struct ErrorResponse: Codable, Sendable {
     var error: String
 }
 
+/// `question` on an `input` push that asks one single-choice question: its options, so the
+/// notification can offer each as a button. Answer with `[id: value]` on the respond route.
+struct PushQuestion: Codable, Hashable, Sendable {
+    var id: String
+    /// At most 4.
+    var options: [PendingRequest.Question.Choice]
+    /// Adds a spoken or typed answer.
+    var allowCustomAnswer: Bool
+
+    /// The question in a push's `userInfo`, or nil when the push has none or it does not decode.
+    init?(userInfo: [AnyHashable: Any]) {
+        guard let object = userInfo["question"], JSONSerialization.isValidJSONObject(object),
+              let data = try? JSONSerialization.data(withJSONObject: object),
+              let question = try? JSON.decoder().decode(Self.self, from: data)
+        else { return nil }
+        self = question
+    }
+
+    init(id: String, options: [PendingRequest.Question.Choice], allowCustomAnswer: Bool) {
+        self.id = id
+        self.options = options
+        self.allowCustomAnswer = allowCustomAnswer
+    }
+}
+
 /// Notification categories the watch registers actions for.
 enum PushCategory: String, CaseIterable, Sendable {
     case approval, finished, failed, input, host, test