use std::path::PathBuf;

use clap::{Parser, Subcommand};

#[derive(Parser)]
pub(crate) struct CliArgs {
    #[command(subcommand)]
    pub(crate) command: Command,
}

#[derive(Subcommand)]
pub(crate) enum Command {
    /// Serve the server.
    Serve {
        /// Which port to serve the server on.
        ///
        /// Leave empty to let the OS choose a free one.
        #[arg(short, long)]
        port: Option<u16>,

        /// Print the used port as single u16 to stdout when started.
        ///
        /// This can be used to determine the used port, when the `port` was left at `None`.
        #[arg(long)]
        print_port: bool,

        /// Which host to serve the server on.
        #[arg(short = 'b', long, default_value = "127.0.0.1")]
        host: String,

        /// Path to the database to use to store data.
        #[arg(short, long, env = "ROCIE_DB_PATH")]
        db_path: PathBuf,
    },

    /// Print the `OpenAPI` API documentation to stdout.
    OpenApi,
}