Vendor OpenClaw source as Adolf fork baseline

Adolf is a fork/vendored clone of github.com/openclaw/openclaw (v2026.6.11),
free to diverge. Tree copied sans upstream .git; upstream remote added for
future syncs. Node pinned to 24 (.nvmrc); engines already require >=22.19.
Preserves docs/ARCHITECTURE.md.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01LeqyaxJF2nbRXJtae2kNB2

apps/swabble/Sources/SwabbleKit/WakeWordGate.swift

@@ -0,0 +1,219 @@
+import Foundation
+
+public struct WakeWordSegment: Sendable, Equatable {
+    public let text: String
+    public let start: TimeInterval
+    public let duration: TimeInterval
+    public let range: Range<String.Index>?
+
+    public init(text: String, start: TimeInterval, duration: TimeInterval, range: Range<String.Index>? = nil) {
+        self.text = text
+        self.start = start
+        self.duration = duration
+        self.range = range
+    }
+
+    public var end: TimeInterval {
+        self.start + self.duration
+    }
+}
+
+public struct WakeWordGateConfig: Sendable, Equatable {
+    public var triggers: [String]
+    public var minPostTriggerGap: TimeInterval
+    public var minCommandLength: Int
+
+    public init(
+        triggers: [String],
+        minPostTriggerGap: TimeInterval = 0.45,
+        minCommandLength: Int = 1)
+    {
+        self.triggers = triggers
+        self.minPostTriggerGap = minPostTriggerGap
+        self.minCommandLength = minCommandLength
+    }
+}
+
+public struct WakeWordGateMatch: Sendable, Equatable {
+    public let triggerEndTime: TimeInterval
+    public let postGap: TimeInterval
+    public let command: String
+    public let trigger: String?
+
+    public init(
+        triggerEndTime: TimeInterval,
+        postGap: TimeInterval,
+        command: String,
+        trigger: String? = nil)
+    {
+        self.triggerEndTime = triggerEndTime
+        self.postGap = postGap
+        self.command = command
+        self.trigger = trigger
+    }
+}
+
+public enum WakeWordGate {
+    private struct Token {
+        let normalized: String
+        let start: TimeInterval
+        let end: TimeInterval
+        let range: Range<String.Index>?
+        let text: String
+    }
+
+    private struct TriggerTokens {
+        let source: String
+        let tokens: [String]
+    }
+
+    private struct MatchCandidate {
+        let index: Int
+        let endIndex: Int
+        let tokenCount: Int
+        let triggerEnd: TimeInterval
+        let gap: TimeInterval
+        let trigger: String
+    }
+
+    public static func match(
+        transcript: String,
+        segments: [WakeWordSegment],
+        config: WakeWordGateConfig)
+    -> WakeWordGateMatch? {
+        let triggerTokens = self.normalizeTriggers(config.triggers)
+        guard !triggerTokens.isEmpty else { return nil }
+
+        let tokens = self.normalizeSegments(segments)
+        guard !tokens.isEmpty else { return nil }
+
+        var best: MatchCandidate?
+
+        for trigger in triggerTokens {
+            let count = trigger.tokens.count
+            guard count > 0, tokens.count > count else { continue }
+            for i in 0...(tokens.count - count - 1) {
+                let matched = (0..<count).allSatisfy { tokens[i + $0].normalized == trigger.tokens[$0] }
+                if !matched { continue }
+
+                let triggerEnd = tokens[i + count - 1].end
+                let nextToken = tokens[i + count]
+                let gap = nextToken.start - triggerEnd
+                if gap < config.minPostTriggerGap { continue }
+
+                let endIndex = i + count - 1
+                if let best {
+                    if endIndex < best.endIndex { continue }
+                    if endIndex == best.endIndex, count <= best.tokenCount { continue }
+                }
+
+                best = MatchCandidate(
+                    index: i,
+                    endIndex: endIndex,
+                    tokenCount: count,
+                    triggerEnd: triggerEnd,
+                    gap: gap,
+                    trigger: trigger.source)
+            }
+        }
+
+        guard let best else { return nil }
+        let command = self.commandText(transcript: transcript, segments: segments, triggerEndTime: best.triggerEnd)
+            .trimmingCharacters(in: Self.whitespaceAndPunctuation)
+        guard command.count >= config.minCommandLength else { return nil }
+        return WakeWordGateMatch(
+            triggerEndTime: best.triggerEnd,
+            postGap: best.gap,
+            command: command,
+            trigger: best.trigger)
+    }
+
+    public static func commandText(
+        transcript _: String,
+        segments: [WakeWordSegment],
+        triggerEndTime: TimeInterval)
+    -> String {
+        let threshold = triggerEndTime + 0.001
+        var commandWords: [String] = []
+        commandWords.reserveCapacity(segments.count)
+        for segment in segments where segment.start >= threshold {
+            let normalized = normalizeToken(segment.text)
+            if normalized.isEmpty { continue }
+            commandWords.append(segment.text)
+        }
+        return commandWords.joined(separator: " ").trimmingCharacters(in: Self.whitespaceAndPunctuation)
+    }
+
+    public static func matchesTextOnly(text: String, triggers: [String]) -> Bool {
+        guard !text.isEmpty else { return false }
+        let normalized = text.lowercased()
+        for trigger in triggers {
+            let token = trigger.trimmingCharacters(in: self.whitespaceAndPunctuation).lowercased()
+            if token.isEmpty { continue }
+            if normalized.contains(token) { return true }
+        }
+        return false
+    }
+
+    public static func stripWake(text: String, triggers: [String]) -> String {
+        var out = text
+        for trigger in triggers {
+            let token = trigger.trimmingCharacters(in: self.whitespaceAndPunctuation)
+            guard !token.isEmpty else { continue }
+            out = out.replacingOccurrences(of: token, with: "", options: [.caseInsensitive])
+        }
+        return out.trimmingCharacters(in: self.whitespaceAndPunctuation)
+    }
+
+    private static func normalizeTriggers(_ triggers: [String]) -> [TriggerTokens] {
+        var output: [TriggerTokens] = []
+        for trigger in triggers {
+            let tokens = trigger
+                .split(whereSeparator: { $0.isWhitespace })
+                .map { self.normalizeToken(String($0)) }
+                .filter { !$0.isEmpty }
+            if tokens.isEmpty { continue }
+            output.append(TriggerTokens(source: tokens.joined(separator: " "), tokens: tokens))
+        }
+        return output
+    }
+
+    private static func normalizeSegments(_ segments: [WakeWordSegment]) -> [Token] {
+        segments.compactMap { segment in
+            let normalized = self.normalizeToken(segment.text)
+            guard !normalized.isEmpty else { return nil }
+            return Token(
+                normalized: normalized,
+                start: segment.start,
+                end: segment.end,
+                range: segment.range,
+                text: segment.text)
+        }
+    }
+
+    private static func normalizeToken(_ token: String) -> String {
+        token
+            .trimmingCharacters(in: self.whitespaceAndPunctuation)
+            .lowercased()
+    }
+
+    private static let whitespaceAndPunctuation = CharacterSet.whitespacesAndNewlines
+        .union(.punctuationCharacters)
+}
+
+#if canImport(Speech)
+import Speech
+
+public enum WakeWordSpeechSegments {
+    public static func from(transcription: SFTranscription, transcript: String) -> [WakeWordSegment] {
+        transcription.segments.map { segment in
+            let range = Range(segment.substringRange, in: transcript)
+            return WakeWordSegment(
+                text: segment.substring,
+                start: segment.timestamp,
+                duration: segment.duration,
+                range: range)
+        }
+    }
+}
+#endif