use owm_rs::free_api_v25::query::{QueryParams, Units};
use serde::Deserialize;

#[derive(Debug, Deserialize)]
pub struct Free25Query {
    pub api_key: String,
    pub city_id: Option<String>,
    pub city_name: Option<String>,
    pub lat: Option<f32>,
    pub lon: Option<f32>,
    pub zip: Option<String>,
    #[serde(default = "default_units")]
    pub units: String, // "metric", "imperial", "standard"
    #[serde(default = "default_lang")]
    pub lang: String, // default "en"
}

fn default_units() -> String {
    "standard".into()
}

fn default_lang() -> String {
    "en".into()
}

impl From<Free25Query> for QueryParams {
    fn from(cfg: Free25Query) -> Self {
        let units = match cfg.units.as_str() {
            "metric" => Units::Metric,
            "imperial" => Units::Imperial,
            _ => Units::Standard,
        };

        QueryParams {
            api_key: cfg.api_key,
            city_id: cfg.city_id,
            city_name: cfg.city_name,
            lat: cfg.lat,
            lon: cfg.lon,
            zip: cfg.zip,
            units,
            lang: cfg.lang,
        }
    }
}