use std::{fs::create_dir_all, io::ErrorKind, path::PathBuf};

use clap::{Parser, Subcommand};

#[derive(Debug, Parser)]
struct Args {
    #[arg(
        long,
        env,
        default_value_os_t = dirs_next::data_local_dir().expect("sorry but you're on a platform where dirs_next::data_local_dir() returned None, so please specify a data directory for the application").join("ac-qu-ai-nt")
    )]
    application_data_directory: PathBuf,

    #[command(subcommand)]
    command: Command,
}

#[derive(Debug, Subcommand)]
enum Command {
    #[cfg(feature = "cli-clap")]
    #[command(alias = "cli")]
    CliClap,
    #[cfg(feature = "gui-eframe")]
    #[command(alias = "gui")]
    GuiEframe,
    #[cfg(feature = "tui-ratatui")]
    #[command(alias = "tui")]
    TuiRatatui,
}

fn main() {
    let Args {
        application_data_directory,
        command,
    } = Args::parse();

    #[cfg(feature = "tracing")]
    tracing_subscriber::fmt::init();

    match create_dir_all(&application_data_directory) {
        Ok(()) => {}
        Err(e) if e.kind() == ErrorKind::AlreadyExists => {}
        Err(e) => {
            panic!("{}", e);
        }
    }

    let tracing_directory = application_data_directory.join("logs");

    match create_dir_all(&tracing_directory) {
        Ok(()) => {}
        Err(e) if e.kind() == ErrorKind::AlreadyExists => {}
        Err(e) => {
            panic!("{}", e);
        }
    }

    match command {
        #[cfg(feature = "cli-clap")]
        Command::CliClap => ac_qu_ai_nt_cli_clap::main(),
        #[cfg(feature = "gui-eframe")]
        Command::GuiEframe => ac_qu_ai_nt_gui_eframe::main(),
        #[cfg(feature = "tui-ratatui")]
        Command::TuiRatatui => ac_qu_ai_nt_tui_ratatui::main(),
    }
}