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v2: real-time Now Playing cadence + robust long-title BLE writes

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Decouple the two data sources that share the BLE link:
- Anthropic usage / rate-limit: still polled every 60s.
- Windows media session: read every 3s and pushed the moment the track or
  play/pause state changes, so a song change reaches the watch in seconds
  instead of at the next 60s poll. The last usage payload is cached and merged
  into each now-playing write, so the firmware always gets one complete JSON
  object and the usage screens never blank between polls.

Fix: long media titles (a 44-char Cyrillic title -> ~256 B once json escapes
each char to \uXXXX) overflowed the ATT MTU, so every write-without-response
failed with E_INVALIDARG and tripped the zombie-link break in a reconnect loop.
Switch the RX write to response=True (WinRT does a reliable long write; the RX
char already advertises WRITE and NimBLE reassembles into its 512 B buffer) and
serialize with ensure_ascii=False so Cyrillic goes as 2-byte UTF-8 instead of
6-byte escapes. Verified on hardware: stable link, writes succeed across the
60s heartbeat.

Firmware: only re-set the Now Playing labels when the track / state actually
changed, so the faster cadence does not restart the circular title-scroll
animation on every (often identical) payload.

requirements-windows.txt: add winrt-Windows.Media[.Control]. Phase 5 imports
them but they were never declared, so now-playing silently degraded to
"nothing playing" on a fresh machine.

tests: fix two stale poll_api assertions that expected an "ok" key poll_api has
not emitted since that flag moved to the caller (connect_and_run).

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
This commit is contained in:
wenil
2026-06-21 09:43:31 +03:00
co-authored by Claude Opus 4.8
parent b8d4daa03f
commit 650af4221b
5 changed files with 124 additions and 55 deletions
Download Patch File Download Diff File Expand all files Collapse all files
firmware/src/ui.cpp
+31 -15
View File
@@ -1,6 +1,7 @@
#include "ui.h"
#include "splash.h"
#include <lvgl.h>
#include <string.h>
#include "logo.h"
#include "icons.h"
#include "hal/board_caps.h"
@@ -860,22 +861,37 @@ void ui_update(const UsageData* data) {
// Now Playing — local media session relayed by the daemon. Like Session, it's
// independent of the rate-limit data, so refresh it before the ok==false bail.
// Only touch the labels when the track / playback state actually changed: the
// daemon pushes a payload every few seconds (fast "music card" cadence), and
// re-running lv_label_set_text() on an unchanged title restarts the circular
// scroll animation each time, so a long title would never get to scroll.
if (nowplaying_container) {
if (data->np_state == 0) {
lv_label_set_text(np_icon_lbl, LV_SYMBOL_AUDIO);
lv_obj_set_style_text_color(np_icon_lbl, COL_DIM, 0);
lv_label_set_text(np_title_lbl, "Nothing playing");
lv_obj_set_style_text_color(np_title_lbl, COL_DIM, 0);
lv_label_set_text(np_artist_lbl, "");
lv_label_set_text(np_status_lbl, "");
} else {
bool playing = (data->np_state == 1);
lv_label_set_text(np_icon_lbl, playing ? LV_SYMBOL_PLAY : LV_SYMBOL_PAUSE);
lv_obj_set_style_text_color(np_icon_lbl, COL_ACCENT, 0);
lv_label_set_text(np_title_lbl, data->np_title[0] ? data->np_title : "(no title)");
lv_obj_set_style_text_color(np_title_lbl, COL_TEXT, 0);
lv_label_set_text(np_artist_lbl, data->np_artist);
lv_label_set_text(np_status_lbl, playing ? "Playing" : "Paused");
static int np_state_shown = -1;
static char np_title_shown[64] = {0};
static char np_artist_shown[64] = {0};
if (data->np_state != np_state_shown
|| strcmp(data->np_title, np_title_shown) != 0
|| strcmp(data->np_artist, np_artist_shown) != 0) {
np_state_shown = data->np_state;
strlcpy(np_title_shown, data->np_title, sizeof(np_title_shown));
strlcpy(np_artist_shown, data->np_artist, sizeof(np_artist_shown));
if (data->np_state == 0) {
lv_label_set_text(np_icon_lbl, LV_SYMBOL_AUDIO);
lv_obj_set_style_text_color(np_icon_lbl, COL_DIM, 0);
lv_label_set_text(np_title_lbl, "Nothing playing");
lv_obj_set_style_text_color(np_title_lbl, COL_DIM, 0);
lv_label_set_text(np_artist_lbl, "");
lv_label_set_text(np_status_lbl, "");
} else {
bool playing = (data->np_state == 1);
lv_label_set_text(np_icon_lbl, playing ? LV_SYMBOL_PLAY : LV_SYMBOL_PAUSE);
lv_obj_set_style_text_color(np_icon_lbl, COL_ACCENT, 0);
lv_label_set_text(np_title_lbl, data->np_title[0] ? data->np_title : "(no title)");
lv_obj_set_style_text_color(np_title_lbl, COL_TEXT, 0);
lv_label_set_text(np_artist_lbl, data->np_artist);
lv_label_set_text(np_status_lbl, playing ? "Playing" : "Paused");
}
}
}