//! WebDAV service management via rclone serve webdav.

use crate::config::Config;

/// Build the `rclone serve webdav` command arguments.
///
/// Uses the first share's mount_point as the serve directory.
/// Multi-share WebDAV support is future work.
pub fn build_serve_args(config: &Config) -> Vec<String> {
    let mount_point = config.shares[0].mount_point.display().to_string();
    let addr = format!("0.0.0.0:{}", config.protocols.webdav_port);

    vec![
        "serve".into(),
        "webdav".into(),
        mount_point,
        "--addr".into(),
        addr,
        "--read-only=false".into(),
    ]
}

/// Build the full command string (for systemd ExecStart).
pub fn build_serve_command(config: &Config) -> String {
    let args = build_serve_args(config);
    format!("/usr/bin/rclone {}", args.join(" "))
}

#[cfg(test)]
mod tests {
    use super::*;

    fn test_config() -> Config {
        toml::from_str(
            r#"
[[connections]]
name = "nas"
nas_host = "10.0.0.1"
nas_user = "admin"

[cache]
dir = "/tmp/cache"

[read]
[bandwidth]
[writeback]
[directory_cache]
[protocols]

[[shares]]
name = "photos"
connection = "nas"
remote_path = "/photos"
mount_point = "/mnt/photos"
"#,
        )
        .unwrap()
    }

    #[test]
    fn test_build_serve_args() {
        let config = test_config();
        let args = build_serve_args(&config);

        assert_eq!(args[0], "serve");
        assert_eq!(args[1], "webdav");
        assert_eq!(args[2], "/mnt/photos");
        assert_eq!(args[3], "--addr");
        assert_eq!(args[4], "0.0.0.0:8080");
        assert_eq!(args[5], "--read-only=false");
    }

    #[test]
    fn test_build_serve_args_custom_port() {
        let mut config = test_config();
        config.protocols.webdav_port = 9090;
        let args = build_serve_args(&config);

        assert_eq!(args[4], "0.0.0.0:9090");
    }

    #[test]
    fn test_build_serve_args_uses_first_share() {
        let config: Config = toml::from_str(
            r#"
[[connections]]
name = "nas"
nas_host = "10.0.0.1"
nas_user = "admin"

[cache]
dir = "/tmp/cache"

[read]
[bandwidth]
[writeback]
[directory_cache]
[protocols]

[[shares]]
name = "photos"
connection = "nas"
remote_path = "/volume1/photos"
mount_point = "/mnt/photos"

[[shares]]
name = "videos"
connection = "nas"
remote_path = "/volume1/videos"
mount_point = "/mnt/videos"
"#,
        )
        .unwrap();
        let args = build_serve_args(&config);
        assert_eq!(args[2], "/mnt/photos");
    }

    #[test]
    fn test_build_serve_command() {
        let config = test_config();
        let cmd = build_serve_command(&config);

        assert!(cmd.starts_with("/usr/bin/rclone serve webdav"));
        assert!(cmd.contains("/mnt/photos"));
        assert!(cmd.contains("--addr"));
        assert!(cmd.contains("0.0.0.0:8080"));
    }
}