//! `helm` - build and inspect the unit database.
//!
//!   helm build --megamek <dir> --out helm.sqlite [--bridge-dir <dir>]
//!   helm stats <db>
//!   helm bv-report --megamek <dir> --bridge-dir <dir>
//!   helm art --megamek <dir> [--out <file>]
//!   helm index --megamek <dir> --bridge-dir <dir> --out units.json
//!   helm catalogue --bridge-dir <dir> --out <file>
//!   helm force <force.mul> --megamek <dir> --bridge-dir <dir>
//!   helm check <force.mul> --megamek <dir> --bridge-dir <dir>
//!   helm repairs <force.mul> --megamek <dir> --bridge-dir <dir>
//!   helm wear <design> --to <bv> --megamek <dir> --bridge-dir <dir>
//!   helm wire-check --megamek <dir> --bridge-dir <dir> --out <bundle>
//!
//! Argument parsing is by hand. A derive-macro dependency would cost more to
//! compile than it saves to read at this size.

use std::process::ExitCode;

mod build;
mod force;
mod inputs;
mod options;
mod report;
mod wire;

use build::{art, build, catalogue, index, stats};
use force::{check, force, repairs, wear};
use options::usage;
use report::bv_report;
use wire::wire_check;

fn main() -> ExitCode {
    let args: Vec<String> = std::env::args().skip(1).collect();
    let result = match args.first().map(String::as_str) {
        Some("build") => build(&args[1..]),
        Some("stats") => stats(&args[1..]),
        Some("bv-report") => bv_report(&args[1..]),
        Some("art") => art(&args[1..]),
        Some("index") => index(&args[1..]),
        Some("catalogue") => catalogue(&args[1..]),
        Some("wire-check") => wire_check(&args[1..]),
        Some("force") => force(&args[1..]),
        Some("check") => check(&args[1..]),
        Some("repairs") => repairs(&args[1..]),
        Some("wear") => wear(&args[1..]),
        Some("-h") | Some("--help") | Some("help") | None => {
            usage();
            return ExitCode::SUCCESS;
        }
        Some(other) => Err(format!("unknown command: {other}")),
    };

    match result {
        Ok(()) => ExitCode::SUCCESS,
        Err(e) => {
            eprintln!("helm: {e}");
            ExitCode::FAILURE
        }
    }
}