use std::path::PathBuf;

use clap::Parser;

#[derive(Parser, Debug)]
#[command(
    name = "filebrowser-ng",
    about = "A simple, noob-friendly web file browser",
    version
)]
pub struct Cli {
    /// Root folder the server has access to (required).
    /// All user folders and shares are relative to this.
    #[arg(long)]
    pub root: PathBuf,

    /// Path to the SQLite database file (required).
    #[arg(long)]
    pub db: PathBuf,

    /// Port to listen on.
    #[arg(long, default_value_t = 8080)]
    pub port: u16,

    /// Address to bind. Use 0.0.0.0 to expose beyond localhost.
    #[arg(long, default_value = "127.0.0.1")]
    pub bind: String,

    /// Assume the server runs behind a TLS-terminating reverse proxy
    /// (sets the `Secure` attribute on the session cookie).
    #[arg(long)]
    pub https: bool,
}

#[cfg(test)]
mod tests {
    use super::*;
    use clap::Parser;
    use std::path::PathBuf;

    #[test]
    fn defaults_applied() {
        let c = Cli::try_parse_from(["filebrowser-ng", "--root", "/r", "--db", "/d"]).unwrap();
        assert_eq!(c.root, PathBuf::from("/r"));
        assert_eq!(c.db, PathBuf::from("/d"));
        assert_eq!(c.port, 8080);
        assert_eq!(c.bind, "127.0.0.1");
        assert!(!c.https);
    }

    #[test]
    fn flags_override_defaults() {
        let c = Cli::try_parse_from([
            "filebrowser-ng",
            "--root",
            "/r",
            "--db",
            "/d",
            "--port",
            "9000",
            "--bind",
            "0.0.0.0",
            "--https",
        ])
        .unwrap();
        assert_eq!(c.port, 9000);
        assert_eq!(c.bind, "0.0.0.0");
        assert!(c.https);
    }

    #[test]
    fn required_args_enforced() {
        assert!(Cli::try_parse_from(["filebrowser-ng", "--root", "/r"]).is_err());
        assert!(Cli::try_parse_from(["filebrowser-ng"]).is_err());
    }
}