esp32-nimble 0.12.0

A wrapper for the ESP32 NimBLE Bluetooth stack.
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use alloc::vec::Vec;

use super::ble_remote_characteristic::BLERemoteCharacteristicState;
use super::{BLEReader, BLEWriter};
use crate::{
    BLEError,
    utilities::{BleUuid, WeakUnsafeCell},
};
use esp_idf_svc::sys as esp_idf_sys;

#[derive(Clone)]
pub struct BLERemoteDescriptor {
    characteristic: WeakUnsafeCell<BLERemoteCharacteristicState>,
    uuid: BleUuid,
    handle: u16,
}

impl BLERemoteDescriptor {
    pub(crate) fn new(
        characteristic: WeakUnsafeCell<BLERemoteCharacteristicState>,
        dsc: &esp_idf_sys::ble_gatt_dsc,
    ) -> Self {
        Self {
            characteristic,
            uuid: BleUuid::from(dsc.uuid),
            handle: dsc.handle,
        }
    }

    pub fn uuid(&self) -> BleUuid {
        self.uuid
    }

    fn conn_handle(&self) -> u16 {
        match self.characteristic.upgrade() {
            Some(x) => x.conn_handle(),
            None => esp_idf_sys::BLE_HS_CONN_HANDLE_NONE as _,
        }
    }

    pub async fn read_value(&mut self) -> Result<Vec<u8>, BLEError> {
        let mut reader = BLEReader::new(self.conn_handle(), self.handle);
        reader.read_value().await
    }

    pub async fn write_value(&mut self, data: &[u8], response: bool) -> Result<(), BLEError> {
        let mut writer = BLEWriter::new(self.conn_handle(), self.handle);
        writer.write_value(data, response).await
    }
}