Add most missing system features (#69)

* Added remaining datetime related functions

* Added more misc features

* Added missing peripheral features

* Removed unnecessary cast

src/system.rs

@@ -5,6 +5,7 @@ use {
 
 use crankstart_sys::ctypes::c_int;
 pub use crankstart_sys::PDButtons;
+use crankstart_sys::{PDDateTime, PDLanguage, PDPeripherals};
 
 static mut SYSTEM: System = System(ptr::null_mut());
 
@@ -46,6 +47,18 @@ impl System {
         Ok((current, pushed, released))
     }
 
+    pub fn set_peripherals_enabled(&self, peripherals: PDPeripherals) -> Result<(), Error> {
+        pd_func_caller!((*self.0).setPeripheralsEnabled, peripherals)
+    }
+
+    pub fn get_accelerometer(&self) -> Result<(f32, f32, f32), Error> {
+        let mut outx = 0.0;
+        let mut outy = 0.0;
+        let mut outz = 0.0;
+        pd_func_caller!((*self.0).getAccelerometer, &mut outx, &mut outy, &mut outz)?;
+        Ok((outx, outy, outz))
+    }
+
     pub fn is_crank_docked(&self) -> Result<bool, Error> {
         let docked: bool = pd_func_caller!((*self.0).isCrankDocked)? != 0;
         Ok(docked)
@@ -117,15 +130,53 @@ impl System {
         Ok(pd_func_caller!((*self.0).getCurrentTimeMilliseconds)? as usize)
     }
 
+    pub fn get_timezone_offset(&self) -> Result<i32, Error> {
+        pd_func_caller!((*self.0).getTimezoneOffset)
+    }
+
+    pub fn convert_epoch_to_datetime(&self, epoch: u32) -> Result<PDDateTime, Error> {
+        let mut datetime = PDDateTime::default();
+        pd_func_caller!((*self.0).convertEpochToDateTime, epoch, &mut datetime)?;
+        Ok(datetime)
+    }
+
+    pub fn convert_datetime_to_epoch(&self, datetime: &mut PDDateTime) -> Result<usize, Error> {
+        Ok(pd_func_caller!((*self.0).convertDateTimeToEpoch, datetime)? as usize)
+    }
+
+    pub fn should_display_24_hour_time(&self) -> Result<bool, Error> {
+        Ok(pd_func_caller!((*self.0).shouldDisplay24HourTime)? != 0)
+    }
+
     pub fn reset_elapsed_time(&self) -> Result<(), Error> {
         pd_func_caller!((*self.0).resetElapsedTime)
     }
 
     pub fn get_elapsed_time(&self) -> Result<f32, Error> {
-        Ok(pd_func_caller!((*self.0).getElapsedTime)?)
+        pd_func_caller!((*self.0).getElapsedTime)
+    }
+
+    pub fn get_flipped(&self) -> Result<bool, Error> {
+        Ok(pd_func_caller!((*self.0).getFlipped)? != 0)
+    }
+
+    pub fn get_reduced_flashing(&self) -> Result<bool, Error> {
+        Ok(pd_func_caller!((*self.0).getReduceFlashing)? != 0)
     }
 
     pub fn draw_fps(&self, x: i32, y: i32) -> Result<(), Error> {
         pd_func_caller!((*self.0).drawFPS, x, y)
     }
+
+    pub fn get_battery_percentage(&self) -> Result<f32, Error> {
+        pd_func_caller!((*self.0).getBatteryPercentage)
+    }
+
+    pub fn get_battery_voltage(&self) -> Result<f32, Error> {
+        pd_func_caller!((*self.0).getBatteryVoltage)
+    }
+
+    pub fn get_language(&self) -> Result<PDLanguage, Error> {
+        pd_func_caller!((*self.0).getLanguage)
+    }
 }