use anyhow::Result;

pub struct Tasmota {
    device: String,
}

impl Tasmota {
    pub fn new(device: impl ToString) -> Self {
        Self {
            device: device.to_string(),
        }
    }

    pub fn name(&self) -> &str {
        &self.device
    }

    fn command(&self, command: &str) -> String {
        format!("http://{}/cm?cmnd={}", self.device, command)
    }

    async fn post(&self, command: &str) -> Result<String> {
        Ok(reqwest::Client::new()
            .post(&self.command(command))
            .send()
            .await?
            .text()
            .await?)
    }

    async fn get(&self, command: &str) -> Result<String> {
        Ok(reqwest::Client::new()
            .get(&self.command(command))
            .send()
            .await?
            .text()
            .await?)
    }

    pub async fn turn_on_led(&self) -> Result<()> {
        self.post("LedPower=1").await?;

        Ok(())
    }

    pub async fn turn_off_led(&self) -> Result<()> {
        self.post("LedPower=2").await?;

        Ok(())
    }

    pub async fn switch_on(&self) -> Result<()> {
        self.post("Power0=1").await?;

        Ok(())
    }

    pub async fn switch_off(&self) -> Result<()> {
        self.post("Power0=0").await?;

        Ok(())
    }

    pub async fn read_power_usage(&self) -> Result<f32> {
        let res = self.get("Status=8").await?;

        Ok(res.parse()?)
    }
}