properties: rewrite properties (whoops)

src/inputs/circadian.rs

@@ -0,0 +1,103 @@
+use chrono::{DateTime, Timelike, Utc};
+
+use crate::{events::{Event, EventBus}, lib8::interpolate::lerp8by8, prop_id, properties::{PropertyID, Variant}, render::props::Output as OutputNS, task::Task, time::Periodically};
+use crate::events::System as SystemNS;
+use paste::paste;
+
+#[derive(Debug, Clone)]
+struct ScheduleEntry {
+    hour: u8,
+    brightness: u8
+}
+
+pub struct CircadianRhythm {
+    time_check: Periodically,
+    schedule: [ScheduleEntry;10]
+}
+
+impl CircadianRhythm {
+    pub fn new() -> Self {
+        CircadianRhythm {
+            time_check: Periodically::new_every_n_seconds(60),
+            schedule: [
+                ScheduleEntry { hour: 0, brightness: 0 },
+                ScheduleEntry { hour: 5, brightness: 0 },
+                ScheduleEntry { hour: 6, brightness: 10 },
+                ScheduleEntry { hour: 7, brightness: 20 },
+                ScheduleEntry { hour: 8, brightness: 80 },
+                ScheduleEntry { hour: 11, brightness: 120 },
+                ScheduleEntry { hour: 18, brightness: 200 },
+                ScheduleEntry { hour: 19, brightness: 255 },
+                ScheduleEntry { hour: 22, brightness: 120 },
+                ScheduleEntry { hour: 23, brightness: 5 }
+            ]
+        }
+    }
+
+    fn update_brightness(&self, bus: &mut EventBus) {
+        let now: DateTime<Utc> = std::time::SystemTime::now().into();
+        let next_brightness = self.brightness_for_time(now.hour() as u8, now.minute() as u8);
+        bus.set_property(OutputNS::Brightness, next_brightness);
+    }
+
+    fn brightness_for_time(&self, hour: u8, minute: u8) -> u8 {
+        let mut start = self.schedule.last().unwrap();
+        let mut end = self.schedule.first().unwrap();
+        for cur in self.schedule.iter() {
+            if cur.hour <= hour {
+                start = cur;
+            } else {
+                end = cur;
+                break;
+            }
+        }
+
+        log::info!("hour={:?} minute={:?} start={:?} end={:?}", hour, minute, start, end);
+
+        let mut adjusted_end = end.clone();
+        if start.hour > end.hour {
+            adjusted_end.hour += 24;
+        }
+
+        let start_time = (start.hour as u16).wrapping_mul(60);
+        let end_time = (end.hour as u16).wrapping_mul(60);
+        let now_time = (hour as u16).wrapping_mul(60).wrapping_add(minute as u16);
+
+        let duration = end_time - start_time;
+        let cur_duration = now_time - start_time;
+
+        let frac = map_range(cur_duration.into(), 0, duration.into(), 0, 255) as u8;
+
+        lerp8by8(start.brightness, end.brightness, frac)
+    }
+}
+
+fn map_range(x: u16, in_min: u16, in_max: u16, out_min: u16, out_max: u16) -> u16 {
+    let run = in_max - in_min;
+    if run == 0 {
+        return 0;
+    }
+    let rise = out_max - out_min;
+    let delta = x - in_min;
+    return (delta.wrapping_mul(rise)) / run + out_min;
+}
+
+
+impl Task for CircadianRhythm {
+    fn on_ready(&mut self, bus: &mut EventBus) {
+        self.update_brightness(bus);
+    }
+
+    fn on_property_change(&mut self, key: PropertyID, value: &Variant, bus: &mut EventBus) {
+        match (key, value) {
+            (prop_id!(SystemNS::TimeSync), Variant::Boolean(true)) => self.update_brightness(bus),
+            _ => ()
+        }
+    }
+
+    fn on_tick(&mut self, bus: &mut EventBus) {
+        if self.time_check.tick() {
+            self.update_brightness(bus);
+        }
+    }
+}

src/inputs/mod.rs

@@ -0,0 +1 @@
+pub mod circadian;