Refactor data sources and feed model

IrisCompanion/iris/Network/LocalServer.swift

@@ -24,7 +24,7 @@ final class LocalServer: ObservableObject {
     private var listener: NWListener?
     private var browser: NWBrowser?
     private var startDate = Date()
-    private var currentEnvelope: WinnerEnvelope
+    private var currentEnvelope: FeedEnvelope
     private var heartbeatTimer: DispatchSourceTimer?
     private var addressTimer: DispatchSourceTimer?
     private var requestBuffers: [ObjectIdentifier: Data] = [:]
@@ -32,20 +32,7 @@ final class LocalServer: ObservableObject {
 
     init(port: Int = 8765) {
         self.port = port
-        let winner = Winner(
-            id: "quiet-000",
-            type: .allQuiet,
-            title: "All Quiet",
-            subtitle: "No urgent updates",
-            priority: 0.05,
-            ttlSec: 300
-        )
-        self.currentEnvelope = WinnerEnvelope(
-            schema: 1,
-            generatedAt: Int(Date().timeIntervalSince1970),
-            winner: winner,
-            debug: nil
-        )
+        self.currentEnvelope = FeedEnvelope.allQuiet(now: Int(Date().timeIntervalSince1970), reason: "no_feed", source: "server")
     }
 
     var testURL: String {
@@ -97,15 +84,15 @@ final class LocalServer: ObservableObject {
         }
     }
 
-    func broadcastWinner(_ envelope: WinnerEnvelope) {
-        let validated = (try? validateEnvelope(envelope)) ?? envelope
-        currentEnvelope = validated
+    func broadcastFeed(_ envelope: FeedEnvelope) {
+        currentEnvelope = envelope
+        let winner = envelope.winnerItem()
         DispatchQueue.main.async {
-            self.lastWinnerTitle = validated.winner.title
-            self.lastWinnerSubtitle = validated.winner.subtitle
+            self.lastWinnerTitle = winner?.title ?? "All Quiet"
+            self.lastWinnerSubtitle = winner?.subtitle ?? "No urgent updates"
             self.lastBroadcastAt = Date()
         }
-        let data = sseEvent(name: "winner", payload: jsonLine(from: validated))
+        let data = sseEvent(name: "feed", payload: jsonLine(from: envelope))
         broadcast(data: data)
     }
 
@@ -312,7 +299,7 @@ final class LocalServer: ObservableObject {
         }
     }
 
-    private func jsonLine(from envelope: WinnerEnvelope) -> String {
+    private func jsonLine(from envelope: FeedEnvelope) -> String {
         let encoder = JSONEncoder()
         if let data = try? encoder.encode(envelope),
            let string = String(data: data, encoding: .utf8) {