use clap::{arg, command};
use url::Url;

mod arguments;

fn main() {
    let cmd = clap::Command::new("rinzler")
        .version(env!("CARGO_PKG_VERSION"))
        .bin_name("rinzler")
        .styles(CLAP_STYLING)
        .arg(arg!(--"quiet").required(false))
        .subcommand_required(true)
        .subcommand(
            command!("init")
                .arg(
                    arg!([FILE])
                        .required(false)
                        .help("Sets the location of the rinzler DB file")
                        .default_value("~/.config/rinzler/database"),
                )
                .arg(
                    arg!(-f - -"force")
                        .help("Forces the overwriting of the database")
                        .required(false),
                ),
        )
        .subcommand(
            command!("workspace")
                .subcommand(
                    command!("create").arg(
                        arg!(-n --"name" <NAME>)
                            .required(true)
                            .help("The name of the workspace"),
                    ),
                )
                .subcommand(
                    command!("remove").arg(
                        arg!(-n --"name" <NAME>)
                            .required(true)
                            .help("The name of the workspace"),
                    ),
                )
                .subcommand(command!("list"))
                .subcommand(
                    command!("rename")
                        .arg(
                            arg!(--"old-name" <NAME>)
                                .required(true)
                                .help("The current name of the workspace"),
                        )
                        .arg(
                            arg!(--"new-name" <NAME>)
                                .required(true)
                                .help("The new name for the workspace"),
                        ),
                ),
        )
        .subcommand(
            command!("scan")
                .arg(
                    arg!(-u --"url" <URL>)
                        .required(false)
                        .help("The IP address to scan")
                        .value_parser(clap::value_parser!(Url))
                        .default_value("http://127.0.0.1"),
                )
                .arg(
                    arg!(-H --"hosts-file" <PATH>)
                        .required(false)
                        .help("a line delimited list of hosts to scan")
                        .value_parser(clap::value_parser!(std::path::PathBuf)),
                ),
        )
        .subcommand(
            command!("plugin")
                .subcommand(command!("list"))
                .subcommand(
                    command!("register")
                        .arg(
                            arg!(-f --"file" <PATH>)
                                .required(true)
                                .help("The path of the plugin file to register")
                                .value_parser(clap::value_parser!(std::path::PathBuf)),
                        )
                        .arg(
                            arg!(-n --"name" <NAME>)
                                .required(true)
                                .help("The name of the plugin"),
                        ),
                )
                .subcommand(
                    command!("unregister").arg(
                        arg!(-n --"name" <NAME>)
                            .required(true)
                            .help("The name of the plugin"),
                    ),
                ),
        );

    let matches = cmd.get_matches();

    match matches.subcommand() {
        Some(("init", sub_matches)) => {
            let db_path = sub_matches.get_one::<String>("FILE").unwrap();
            let force = sub_matches.get_flag("force");
            handle_init(db_path, force);
        }
        Some(("workspace", sub_matches)) => match sub_matches.subcommand() {
            Some(("create", args)) => {
                let name = args.get_one::<String>("name").unwrap();
                handle_workspace_create(name);
            }
            Some(("remove", args)) => {
                let name = args.get_one::<String>("name").unwrap();
                handle_workspace_remove(name);
            }
            Some(("list", _args)) => {
                handle_workspace_list();
            }
            Some(("rename", args)) => {
                let old_name = args.get_one::<String>("old-name").unwrap();
                let new_name = args.get_one::<String>("new-name").unwrap();
                handle_workspace_rename(old_name, new_name);
            }
            _ => unreachable!("clap should ensure we don't get here"),
        },
        Some(("scan", sub_matches)) => {
            let url = sub_matches.get_one::<Url>("url");
            let hosts_file = sub_matches.get_one::<std::path::PathBuf>("hosts-file");
            handle_scan(url, hosts_file);
        }
        Some(("plugin", sub_matches)) => match sub_matches.subcommand() {
            Some(("list", _args)) => {
                handle_plugin_list();
            }
            Some(("register", args)) => {
                let file = args.get_one::<std::path::PathBuf>("file").unwrap();
                let name = args.get_one::<String>("name").unwrap();
                handle_plugin_register(file, name);
            }
            Some(("unregister", args)) => {
                let name = args.get_one::<String>("name").unwrap();
                handle_plugin_unregister(name);
            }
            _ => unreachable!("clap should ensure we don't get here"),
        },
        _ => unreachable!("clap should ensure we don't get here"),
    }
}

// Handler functions
fn handle_init(db_path: &str, force: bool) {
    println!("Initializing database at: {}", db_path);
    if force {
        println!("Force overwrite enabled");
    }
    // TODO: Implement database initialization
}

fn handle_workspace_create(name: &str) {
    println!("Creating workspace: {}", name);
    // TODO: Implement workspace creation
}

fn handle_workspace_remove(name: &str) {
    println!("Removing workspace: {}", name);
    // TODO: Implement workspace removal
}

fn handle_workspace_list() {
    println!("Listing workspaces");
    // TODO: Implement workspace listing
}

fn handle_workspace_rename(old_name: &str, new_name: &str) {
    println!("Renaming workspace from '{}' to '{}'", old_name, new_name);
    // TODO: Implement workspace renaming
}

fn handle_scan(url: Option<&Url>, hosts_file: Option<&std::path::PathBuf>) {
    if let Some(url) = url {
        println!("Scanning URL: {}", url);
    }
    if let Some(hosts_file) = hosts_file {
        println!("Scanning hosts from file: {}", hosts_file.display());
    }
    // TODO: Implement scanning logic
}

fn handle_plugin_list() {
    println!("Listing plugins");
    // TODO: Implement plugin listing
}

fn handle_plugin_register(file: &std::path::PathBuf, name: &str) {
    println!(
        "Registering plugin '{}' from file: {}",
        name,
        file.display()
    );
    // TODO: Implement plugin registration
}

fn handle_plugin_unregister(name: &str) {
    println!("Unregistering plugin: {}", name);
    // TODO: Implement plugin unregistration
}

pub const CLAP_STYLING: clap::builder::styling::Styles = clap::builder::styling::Styles::styled()
    .header(clap_cargo::style::HEADER)
    .usage(clap_cargo::style::USAGE)
    .literal(clap_cargo::style::LITERAL)
    .placeholder(clap_cargo::style::PLACEHOLDER)
    .error(clap_cargo::style::ERROR)
    .valid(clap_cargo::style::VALID)
    .invalid(clap_cargo::style::INVALID);
