use clap::{App, Arg, SubCommand, ArgMatches};

/// Global function that grabs the arguments and shows the user help on any given command.
/// An error occurs when a command passes through and it doesn't match the argument specified.
pub fn get_args() -> ArgMatches<'static> {
    let matches = App::new("gt")
                        .version("0.0.2")
                        .author("Wyatt J. Miller <wjmiller2016@gmail.com>")
                        .about("It's a Gitea CLI client!")
                        .arg(Arg::with_name("--json").help("Print out results in JSON"))
                        .subcommand(SubCommand::with_name("repo")
                                .about("Create, delete, list, search, or fork a repository")
                                .arg(Arg::with_name("create")
                                        .short("c")
                                        .long("create")
                                        .value_names(&["REPO"])
                                        .help("Create a repository for a user")
                                    )
                                .arg(Arg::with_name("search")
                                        .short("s")
                                        .long("search")
                                        .value_names(&["REPO"])
                                        .help("Search repositories for a user")
                                    )
                                .arg(Arg::with_name("list")
                                        .short("l")
                                        .long("list")
                                        .help("List all the repositories for the authenticated user")
                                    )
                                .arg(Arg::with_name("delete")
                                        .short("d")
                                        .long("delete")
                                        .value_names(&["OWNER", "REPO"])
                                        .help("Delete a repository for a user")
                                    )
                                .arg(Arg::with_name("fork")
                                        .short("f")
                                        .long("fork")
                                        .value_names(&["OWNER", "REPO"])
                                        .help("Fork a repository for a user")
                                    )
                                .arg(Arg::with_name("draw")
                                        .short("o")
                                        .long("push")
                                        .value_names(&["OWNER", "REPO", "BRANCH"])
                                        .help("Push local changes to a remote repository")
                                    )
                                .arg(Arg::with_name("pull")
                                        .short("pl")
                                        .long("pull")
                                        .value_names(&["OWNER", "REPO", "BRANCH"])
                                        .help("Pull latest changes from a remote repository")
                                    )
                                .arg(Arg::with_name("clone")
                                    .short("i")
                                    .long("clone")
                                    .value_names(&["OWNER", "REPO"])
                                    .help("Clone a repository")
                                    )
                                )
                        .subcommand(SubCommand::with_name("issue")
                                .about("Create, search, comment, close, or reopen an issue")
                                .arg(Arg::with_name("create")
                                    .short("c")
                                    .long("c")
                                    .value_names(&["OWNER", "REPO"])
                                    .help("Create an issue for a repository")
                                    )
                                )
                                .arg(Arg::with_name(""))
                        .subcommand(SubCommand::with_name("pr")
                                .about("Create, search, comment, merge, and close pull requests")
                                .arg(Arg::with_name("create")
                                    .short("c")
                                    .long("create")
                                    .value_names(&["REPO"])
                                    .help("Create a new pull request for a repository")
                                )
                        )
                        .subcommand(SubCommand::with_name("user")
                                .about("Check the status, repositories, followers, and other such items about your and others user")
                                .arg(Arg::with_name("get")
                                    .short("g")
                                    .long("get")
                                    .help("Get your authenticated user")
                                )
                        )   
                        .get_matches();

    matches
}