Add schedule sync and schedule-aware playback

tests/test_scroller_streams.cpp

@@ -17,6 +17,7 @@ using radiantwave::scroller::StreamColor;
 using radiantwave::scroller::buildStreams;
 using radiantwave::scroller::kDefaultRepeatCount;
 using radiantwave::scroller::kSelectedRepeatCount;
+using radiantwave::scroller::minuteInScheduleBlock;
 
 const std::string kDefaultId = "default";
 
@@ -185,6 +186,77 @@ TEST(ScrollerStreamsTest, MissingDefaultStillStreamsSelected)
     EXPECT_EQ(streams[0].repeat, kSelectedRepeatCount);
 }
 
+TEST(ScrollerStreamsTest, MinuteInScheduleBlockDaytime)
+{
+    // 06:00 (360) to 08:00 (480), half-open.
+    EXPECT_FALSE(minuteInScheduleBlock(359, 360, 480, false));
+    EXPECT_TRUE(minuteInScheduleBlock(360, 360, 480, false));
+    EXPECT_TRUE(minuteInScheduleBlock(479, 360, 480, false));
+    EXPECT_FALSE(minuteInScheduleBlock(480, 360, 480, false));
+}
+
+TEST(ScrollerStreamsTest, MinuteInScheduleBlockOvernight)
+{
+    // 21:00 (1260) to 09:00 (540) wraps past midnight.
+    EXPECT_TRUE(minuteInScheduleBlock(1260, 1260, 540, true));
+    EXPECT_TRUE(minuteInScheduleBlock(1439, 1260, 540, true));
+    EXPECT_TRUE(minuteInScheduleBlock(0, 1260, 540, true));
+    EXPECT_TRUE(minuteInScheduleBlock(539, 1260, 540, true));
+    EXPECT_FALSE(minuteInScheduleBlock(540, 1260, 540, true));
+    EXPECT_FALSE(minuteInScheduleBlock(1259, 1260, 540, true));
+}
+
+TEST(ScrollerStreamsTest, ScheduledIdsDriveOrderRegardlessOfSelection)
+{
+    ProclamationRecord p1;
+    p1.id = "one";
+    p1.title = "One";
+    p1.content = "x";
+    p1.selected = false;
+
+    ProclamationRecord p2;
+    p2.id = "two";
+    p2.title = "Two";
+    p2.content = "y";
+    p2.selected = false;
+
+    ProclamationRecord def;
+    def.id = kDefaultId;
+    def.title = "Default";
+    def.content = "z";
+
+    // Explicit order two -> one, interleaved with the default. Unknown ids are
+    // skipped; the `selected` flag is ignored.
+    std::vector<std::string> scheduled = {"two", "missing", "one"};
+    auto streams = buildStreams({p1, p2, def}, {}, palette(), {}, kDefaultId, &scheduled);
+
+    ASSERT_EQ(streams.size(), 4u);
+    EXPECT_EQ(streams[0].name, "Two");
+    EXPECT_EQ(streams[1].name, "Default");
+    EXPECT_EQ(streams[2].name, "One");
+    EXPECT_EQ(streams[3].name, "Default");
+}
+
+TEST(ScrollerStreamsTest, EmptyScheduleFallsBackToDefault)
+{
+    ProclamationRecord p1;
+    p1.id = "one";
+    p1.title = "One";
+    p1.content = "x";
+    p1.selected = true;
+
+    ProclamationRecord def;
+    def.id = kDefaultId;
+    def.title = "Default";
+    def.content = "y";
+
+    std::vector<std::string> scheduled; // empty block
+    auto streams = buildStreams({p1, def}, {}, palette(), {}, kDefaultId, &scheduled);
+
+    ASSERT_EQ(streams.size(), 1u);
+    EXPECT_EQ(streams[0].name, "Default");
+}
+
 TEST(ScrollerStreamsTest, SplitsGluedSentencePunctuation)
 {
     ProclamationRecord p1;