start implementing orders

src/main.rs

@@ -14,7 +14,7 @@ use helios_dac::NativeHeliosDacController;
 use std::sync::atomic::{AtomicBool, Ordering};
 use std::sync::Arc;
 
-use redis_ctrl::RedisCtrl;
+use redis_ctrl::{RedisCtrl,Order};
 
 const CENTER : (u16,u16) = (2000, 2000);
 
@@ -35,7 +35,12 @@ pub fn main() -> Result<(), Box<dyn std::error::Error>> {
     let device = devices.into_iter().next().unwrap();
     let mut device = device.open()?;
     
-    while running.load(Ordering::SeqCst) {	
+    while running.load(Ordering::SeqCst) {
+	let order = rs.get_order(0)?;
+	if order != Order::Draw {
+	    println!("{:?}", order);
+	}
+
 	let frame = get_next_frame(1000, &mut rs)?;
 	
 	while let Ok(DeviceStatus::NotReady) = device.status() {

src/redis_ctrl.rs

@@ -5,6 +5,45 @@ use redis::{
 };
 use ron::de::from_str;
 
+#[repr(u8)]
+#[derive(Debug,PartialEq)]
+pub enum Order {
+    Draw = 0,
+    Edh, //homography
+    Black,
+    Grid,
+    Resampler,
+    ClientKey,
+    Intensity,
+    Kpps,
+    ColorBalance
+}
+
+impl TryFrom<u8> for Order {
+    type Error = String;
+    
+    fn try_from(value: u8) -> Result<Self, Self::Error> {
+	use Order::*;
+
+	if value > 8 {
+	    return Err("order out of range".to_string());
+	}
+	
+	Ok(match value {
+	    0 => Draw,
+	    1 => Edh,
+	    2 => Black,
+	    3 => Grid,
+	    4 => Resampler,
+	    5 => ClientKey,
+	    6 => Intensity,
+	    7 => Kpps,
+	    8 => ColorBalance,
+	    _ => panic!("Can't be there")
+	})
+    }
+}  
+
 pub type Line = Vec<(f32,f32,u32)>;
 
 pub struct RedisCtrl {
@@ -28,5 +67,20 @@ impl RedisCtrl {
 	let line : Line = from_str(&val)?;
 	Ok(line)
     }
+    
+    pub fn get_order(
+	&mut self,
+	id: u8
+    ) -> Result<Order, Box<dyn std::error::Error>> {
+	let path = format!("/order/{id}");
+	let val : u8 = self.connection.get(path.clone())?;
+	
+	if val == 1 || val >= 4 {
+	    self.connection.set(path, 0)?;
+	}
+	
+	Ok(val.try_into()?)
+    }
+
 }