use anyhow::{Context as _, Result};
use std::str::FromStr as _;

#[tokio::main]
async fn main() -> Result<()> {
    let mut args = std::env::args();
    args.next().context("Expected app name as arg0")?;

    let lat = args.next().context("Usage: weather_dot_gov $LAT $LON")?;
    let lon = args.next().context("Usage: weather_dot_gov $LAT $LON")?;

    let client = reqwest::Client::new();
    let req = client
        .get("https://forecast.weather.gov/MapClick.php")
        .query(&[
            ("lat", lat.as_str()),
            ("lon", lon.as_str()),
            ("unit", "0"),
            ("lg", "english"),
            ("FcstType", "dwml"),
        ])
        .header("user-agent", "weather_dot_gov_rs")
        .build()?;
    let res = client.execute(req).await?;
    let body = res.text().await?;
    let dwml = weather_dot_gov_rs::Dwml::from_str(&body)?;

    println!("{dwml:#?}");

    Ok(())
}