use std::fs::File;
use std::io::{BufReader, BufRead};
use rusqlite;

fn main() -> std::io::Result<()> {
    let fantoir_path = std::env::args().nth(1).unwrap();
    let connection = rusqlite::Connection::open("fantoir.sqlite").unwrap();
    connection.execute(
        "
        CREATE TABLE IF NOT EXISTS streets (
          id INTEGER PRIMARY KEY,
          insee TEXT NOT NULL,
          rivoli TEXT NOT NULL,
          libelle TEXT NOT NULL
        );
        ", []
    ).unwrap();
    let mut insert_statement = connection
        .prepare("INSERT INTO streets (insee, rivoli, libelle) values (?,?,?)")
        .unwrap();
    let file = match File::open(&fantoir_path) {
        Err(err) => panic!("Cannot read file {}: {}", fantoir_path, err),
        Ok(file) => file,
    };
    let reader = BufReader::new(file);

    let mut full_insee = String::with_capacity(5);
    for line in reader.lines() {
        let l = line.unwrap();
        if l.chars().nth(3) == Some(' ') {
            // Enregistrement Département
        } else if l.chars().nth(6) == Some(' ') {
            // Enregistrement Commune
        } else  {
            full_insee = String::from(l.get(0..2).unwrap());
            full_insee.push_str(l.get(3..6).unwrap());
            let rivoli_with_key = l.get(6..11).unwrap();
            let libelle = l.get(15..41).unwrap();
            insert_statement.execute(rusqlite::params![&full_insee, rivoli_with_key, libelle]).unwrap();
            /* A priori on peut tout parser.
             Il nous faut au moins:
             - Libellé voie (index 15 a 41)
             - code insee (index 3 a 5)
             - code rivoli (??)

            */
        }
    };
    Ok(())
}