From 9798dcb08e44ebdbc6f8cc0022c4d7fd27430b43 Mon Sep 17 00:00:00 2001
From: Randall Winkhart <idgr@tutanota.com>
Date: Sun, 11 Oct 2026 16:37:30 -0400
Subject: [PATCH] Initial music playback!

---
 src/c/jellyPod.c  | 20 ++++++++++++-
 src/pkjs/index.js | 75 +++++++++++++++++++++++++++++++----------------
 2 files changed, 69 insertions(+), 26 deletions(-)

diff --git a/src/c/jellyPod.c b/src/c/jellyPod.c
index 3121010..1db255f 100644
--- a/src/c/jellyPod.c
+++ b/src/c/jellyPod.c
@@ -124,6 +124,24 @@ static void inbox_received_handler(DictionaryIterator *iter, void *context) {
 	}
 }
 
+static void to_pkjs_play_from_track(uint16_t seqId) {
+	if (!s_pkjs_ready) {
+		return;
+	}
+
+	DictionaryIterator *out;
+	AppMessageResult result = app_message_outbox_begin(&out);
+	if (result != APP_MSG_OK) {
+		return;
+	}
+	dict_write_uint16(out, MESSAGE_KEY_OUT_PLAY_SEQ_ID, seqId);
+
+	result = app_message_outbox_send();
+	if (result != APP_MSG_OK) {
+		return;
+	}
+}
+
 static void to_pkjs_move_deeper(NavScope scope, uint16_t *subscope_index) {
 	if (!s_pkjs_ready) {
 		return;
@@ -236,7 +254,7 @@ static void menu_select_click(struct MenuLayer *menu_layer, MenuIndex *clicked_i
 		to_pkjs_move_deeper(s_current_menu_scope + 1, &clicked_index->row);
 		break;
 	case NAV_SCOPE_ALBUM_TRACKS:
-		// TODO tell PKJS to play track (and queue sequential tracks)
+		to_pkjs_play_from_track(s_current_menu_seq_ids[clicked_index->row]);
 		break;
 	}
 }
diff --git a/src/pkjs/index.js b/src/pkjs/index.js
index 6fcd5f1..0a3943d 100644
--- a/src/pkjs/index.js
+++ b/src/pkjs/index.js
@@ -14,6 +14,10 @@ var NavScope = Object.freeze({
 var cfg = JSON.parse(localStorage.getItem('clay-settings'));
 var currentArtist = null;
 
+////////////////////// GENERAL API VARS //////////////////////
+var USER_ID_CACHE_KEY = 'user-id';
+var jfSessionId;
+
 ////////////////////// LIBRARY CACHE //////////////////////
 
 var LIBRARY_CACHE_KEY = 'library-cache';
@@ -77,9 +81,33 @@ function loadLibraryCache() {
 ////////////////////// SYNC //////////////////////
 
 function toggleReadyState(ready) {
-    const readyDict = {};
-    readyDict[keys.PKJS_READY] = ready;
-    Pebble.sendAppMessage(readyDict);
+    let bestSessionInfo = {
+        sessionId: "",
+        lastActiveTime: new Date("1970-01-01T00:00:00.0000000Z")
+    };
+
+    // get sessionId from Jellyfin
+    callAPI("GET", cfg.PRIV_BASE_URL + "/Sessions", function (sessionIdResp) {
+        if (sessionIdResp === null) { return; }
+        const sessionIdObj = JSON.parse(sessionIdResp);
+        let lastActiveTime;
+        for (const session of sessionIdObj) {
+            if (session.UserName == cfg.PRIV_USERNAME) {
+                lastActiveTime = new Date(session.LastActivityDate);
+                if (lastActiveTime > bestSessionInfo.lastActiveTime) {
+                    bestSessionInfo = {
+                        sessionId: session.Id,
+                        lastActiveTime: lastActiveTime
+                    };
+                }
+            }
+        }
+        jfSessionId = bestSessionInfo.sessionId;
+
+        const readyDict = {};
+        readyDict[keys.PKJS_READY] = ready;
+        Pebble.sendAppMessage(readyDict);
+    });
 }
 
 function syncLibrary() {
@@ -87,8 +115,8 @@ function syncLibrary() {
 
     // store cache of library info from Jellyfin
     if (cfg.PRIV_BASE_URL && cfg.PRIV_API_KEY && cfg.PRIV_USERNAME) {
-        // get userId from Jellyfin
         callAPI("GET", cfg.PRIV_BASE_URL + "/Users", function (userIdResp) {
+            // get userId from Jellyfin
             if (userIdResp === null) { return; }
             const userIdObj = JSON.parse(userIdResp);
             let userId;
@@ -200,6 +228,16 @@ Pebble.addEventListener("appmessage", function (dict) {
 
     const scope = payloadGet(dict.payload, "BIDIR_MENU_NAV_SCOPE");
     const subscope = payloadGet(dict.payload, "OUT_MENU_NAV_SUBSCOPE");
+    const seqId = payloadGet(dict.payload, "OUT_PLAY_SEQ_ID");
+
+    if (seqId) {
+        console.log("SEQ ID RECEIVED");
+        console.log("sessionId: " + jfSessionId);
+        console.log("seqId: " + seqId);
+        console.log("jfId: " + allJfIds[seqId]);
+        console.log("SEQ ID RECEIVED");
+        callAPI("POST", cfg.PRIV_BASE_URL + "/Sessions/" + jfSessionId + "/Playing?playCommand=PlayNow&itemIds=" + allJfIds[seqId], null);
+    }
 
     if (scope) {
         let vanityList;
@@ -250,8 +288,8 @@ Pebble.addEventListener("appmessage", function (dict) {
 
 ////////////////////// JELLYFIN API //////////////////////
 
-function reportAPIFailure() {
-    console.log("API FAILURE");
+function reportAPIFailure(statusCode, statusText) {
+    console.log("[" + statusCode+"] API FAILURE: " + statusText);
 }
 
 function callAPI(method, endpoint, callback) {
@@ -260,17 +298,19 @@ function callAPI(method, endpoint, callback) {
     xhr.onload = function () {
         switch (xhr.status) {
             case 200:
-                callback(this.responseText);
+                if (callback) {
+                    callback(this.responseText);
+                }
                 return;
             default:
-                reportAPIFailure();
+                reportAPIFailure(xhr.status, xhr.statusText);
         }
     };
     xhr.onerror = function () {
-        reportAPIFailure();
+        reportAPIFailure(xhr.status, xhr.statusText);
     };
     xhr.ontimeout = function () {
-        reportAPIFailure();
+        reportAPIFailure(xhr.status, xhr.statusText);
     };
 
     xhr.open(method, endpoint, true);
@@ -279,18 +319,3 @@ function callAPI(method, endpoint, callback) {
     xhr.setRequestHeader("Authorization", 'MediaBrowser Token="' + cfg.PRIV_API_KEY + '"');
     xhr.send();
 }
-
-// On Every Startup
-//// Get Session ID
-
-//curl -H "Authorization: MediaBrowser Token=\"TOKEN\"" -X GET 'BASEURL/Sessions'
-
-// Filter by:
-//  UserId
-// Sort by:
-//  LastActivityDate
-
-// Controls
-//// Select Track (pass through a queue)
-
-//curl - H "Authorization: MediaBrowser Token=\"TOKEN\"" - X POST 'BASEURL/Sessions/SESSIONID/Playing?playCommand=PlayNow&itemIds=XXX,YYY'