use clap::Parser;

use crate::config::{get_config_dir, get_data_dir};

#[derive(Parser, Debug)]
#[command(author, version = version(), about)]
pub struct Cli {
    /// Tick rate, i.e. number of ticks per second
    #[arg(short, long, value_name = "FLOAT", default_value_t = 4.0)]
    pub tick_rate: f32,

    /// Frame rate, i.e. number of frames per second
    #[arg(short, long, value_name = "FLOAT", default_value_t = 60.0)]
    pub frame_rate: f32,

    /// RPC Endpoint to the nodes JSON RPC
    #[arg(short, long, default_value_t = String::from("ws://localhost:9945"))]
    pub rpc_endpoint: String,

    /// Request timeout in seconds
    #[arg(short = 'i', long, default_value_t = 2)]
    pub timeout: u64,

    /// Mouse usage during execution, EXPERIMENTAL AND NOT RECOMENDED
    #[arg(short, long)]
    pub mouse_needed: bool,

    /// Paste available during execution, EXPERIMENTAL AND NOT RECOMENDED
    #[arg(short, long)]
    pub paste_needed: bool,
}

const VERSION_MESSAGE: &str = concat!(
    env!("CARGO_PKG_VERSION"),
    "-",
    env!("VERGEN_GIT_DESCRIBE"),
    " (",
    env!("VERGEN_BUILD_DATE"),
    ")",
);

fn version() -> String {
    let author = clap::crate_authors!();

    let config_dir_path = get_config_dir().display().to_string();
    let data_dir_path = get_data_dir().display().to_string();

    format!(
        "\
{VERSION_MESSAGE}

Authors: {author}

Config directory: {config_dir_path}
Data directory: {data_dir_path}"
    )
}