install.sh

#!/usr/bin/env bash

# shellcheck disable=SC2155

main() {
    readonly DEST="$HOME/.local/bin"
    readonly NCMLOC="$DEST/ncm"

    if command -v tput > /dev/null; then
        readonly GREEN=$(tput setaf 2)
        readonly RESET=$(tput sgr0)
    fi

    SILENT='false'
    TAG='main'

    while [[ $# -gt 0 ]]; do
        case "$1" in
            -s | --silent) readonly SILENT='true' ;;
            -t | --tag)
                if [[ -n "$2" ]] && [[ "$2" != -* ]]; then
                    readonly TAG="$2"
                    shift
                else
                    echo "Option --tag requires an argument"
                    exit 1
                fi
                ;;
            --tag=?*)
                readonly TAG="${1#*=}"
                ;;
            *) echo "Invalid argument: $1" && exit 1 ;;
        esac
        shift
    done

    if [[ "$TAG" != "main" && ! "$TAG" =~ ^v0\.[1-9]\.[0-9]+$ ]]; then
        echo "Tag $TAG does not exist."
        exit 1
    fi

    [[ "$SILENT" == "true" ]] || echo "Installing ncm..."

    mkdir -p "$DEST"

    if [[ "$SILENT" == "true" ]]; then
        curl -fsSL# "https://raw.githubusercontent.com/trimclain/ncm/$TAG/ncm" --output ncm.tmp
    else
        curl -fL# "https://raw.githubusercontent.com/trimclain/ncm/$TAG/ncm" --output ncm.tmp
    fi

    mv -f ncm.tmp "$NCMLOC"
    chmod 755 "$NCMLOC"

    [[ "$SILENT" == "true" ]] || echo "${GREEN}Installation finished${RESET}"
}

main "$@"