kmz.rs

use crate::common::*;
use serde::Deserialize;

pub fn decode(path: &str) -> Result<Vec<LatLonBox>> {
    let f = std::fs::File::open(path)?;
    let mut zip_archive = zip::ZipArchive::new(f)?;
    let doc_file = zip_archive.by_name("doc.kml")?;
    let doc: KmlDoc = serde_xml_rs::from_reader(doc_file)?;
    Ok(doc
        .document
        .ground_overlay
        .into_iter()
        .map(|x| x.lat_lon_box)
        .collect())
}

#[derive(Deserialize, Debug)]
pub struct LatLonBox {
    north: f64,
    south: f64,
    east: f64,
    west: f64,
}

#[derive(Deserialize)]
#[serde(rename_all = "PascalCase")]
struct KmlDoc {
    document: Document,
}

#[derive(Deserialize)]
#[serde(rename_all = "PascalCase")]
struct Document {
    ground_overlay: Vec<GroundOverlay>,
}

#[derive(Deserialize)]
#[serde(rename_all = "PascalCase")]
struct GroundOverlay {
    lat_lon_box: LatLonBox,
}