function tide
    argparse --stop-nonopt 'v/version' 'h/help' -- $argv

    if set -q _flag_version
        printf '%s\n' "tide, version $_tide_version"
    else if set -q _flag_help
        _tide_help
    else if functions --query _tide_sub_$argv[1]
        _tide_sub_$argv[1] $argv[2..-1]
    else
        _tide_help
        return 1
    end
end

function _tide_help
    printf '%s\n' \
        'Usage: tide [options] subcommand [options]' \
        '' \
        'Options:' \
        '  -v or --version  print tide version number' \
        '  -h or --help     print this help message' \
        '' \
        'Subcommands:' \
        '  configure   run interactive configuration wizard' \
        '  bug-report  print info for use in bug reports' \
        '  test        run tests for developers'
end