use anyhow::Context;
use serde::{Deserialize, Serialize};

const SEVENTIMER_URL: &str =
    "http://www.7timer.info/bin/api.pl?lon=4.1167&lat=43.8167&product=astro&output=json";

#[derive(Debug, Clone, Serialize, Deserialize)]
#[serde(rename_all = "lowercase")]
pub enum GoNogo {
    Go,
    Marginal,
    Nogo,
}

impl GoNogo {
    pub fn as_str(&self) -> &'static str {
        match self {
            GoNogo::Go => "go",
            GoNogo::Marginal => "marginal",
            GoNogo::Nogo => "nogo",
        }
    }
}

pub fn go_nogo(cloudcover: u8, seeing: u8, transparency: u8) -> GoNogo {
    if cloudcover <= 2 && seeing <= 3 && transparency <= 3 {
        GoNogo::Go
    } else if cloudcover <= 4 && seeing <= 5 {
        GoNogo::Marginal
    } else {
        GoNogo::Nogo
    }
}

pub async fn fetch_seventimer() -> anyhow::Result<serde_json::Value> {
    let client = reqwest::Client::builder()
        .timeout(std::time::Duration::from_secs(30))
        .build()?;

    let resp = client
        .get(SEVENTIMER_URL)
        .send()
        .await
        .context("7timer request failed")?;

    let json = resp.json::<serde_json::Value>().await.context("7timer JSON parse failed")?;
    Ok(json)
}