installJRMC/installJRMC

#!/usr/bin/env bash
# Install JRiver Media Center and associated services
# See installJRMC --help or printHelp() below
#
# Copyright (c) 2021-2024 Bryan C. Roessler
# This software is released under the Apache License.
# https://www.apache.org/licenses/LICENSE-2.0
#
# TODO (v1.1)
#   1. Interactive mode
#   2. Additional containerization (createrepo and rpmbuild)
#   3. Tests
#
# BUGS
#   1. No createrepo on Mint

shopt -s extglob

declare -g SCRIPTVERSION="1.0-dev"
declare -g BOARDURL="https://yabb.jriver.com/interact/index.php/board,83.0.html" # MC32
declare -g DEBIANBASE="bullseye"
declare -g MC_VERSION_HARDCODE="32.0.6" # Do find all replace

printHelp() {
    debug "Running: ${FUNCNAME[0]}"

    cat <<-EOF
		USAGE:
		    installJRMC [[OPTION] [VALUE]]...

		    If no options (excluding -d or --debug) are provided installJRMC defaults to '--install repo'.

		OPTIONS
		    --install, -i repo|local
		        repo: Install MC from repository, updates are handled by the system package manager
		        local: Build and install MC package locally from official source release
		    --build[=suse|fedora|centos]
		        Build RPM from source DEB but do not install
		        Optionally, specify a target distro for cross-building (ex. --build=suse, note the '=')
		    --compat
		        Build/install MC locally without minimum dependency version requirements
		    --mcversion VERSION
		        Specify the MC version, ex. "$MC_VERSION_HARDCODE" (default: latest version)
		    --arch VERSION
		        Specify the MC architecture, ex. "amd64", "arm64", etc (default: host architecture)
		    --outputdir PATH
		        Generate rpmbuild output in this directory (default: ./output)
		    --restorefile RESTOREFILE
		        Restore file location for automatic license registration
		    --betapass PASSWORD
		        Enter beta team password for access to beta builds
		    --service, -s SERVICE
		        See SERVICES section below for a list of possible services to install
		      --service-type user|system
		          Starts services at boot (system) or at user login (user) (default: per service, see SERVICES)
		    --container, -c CONTAINER (TODO: Under construction)
		        See CONTAINERS section below for a list of possible services to install
		    --createrepo[=suse|fedora|centos]
		        Build rpm, copy to webroot, and run createrepo. 
		        Use in conjunction with --build=TARGET for crossbuilding repos
		        Optionally, specify a target distro for non-native repo (ex. --createrepo=fedora, note the '=')
		        --createrepo-webroot PATH
		            Specify the webroot directory to install the repo (default: /var/www/jriver)
		        --createrepo-user USER
		            Specify the web server user if it differs from \$USER
		    --uninstall, -u
		        Uninstall JRiver MC, remove services, containers, and firewall rules (does not remove library files)
		    --yes, -y, --auto
		        Always assume yes for questions
		    --version, -v
		        Print this script version and exit
		    --debug, -d
		        Print debug output
		    --help, -h
		        Print help dialog and exit

		SERVICES
		    jriver-mediaserver (default --service-type=user)
		        Enable and start a mediaserver systemd service (requires an existing X server)
		    jriver-mediacenter (user)
		        Enable and start a mediacenter systemd service (requires an existing X server)
		    jriver-x11vnc (user)
		        Enable and start x11vnc for the local desktop (requires an existing X server)
		        Usually combined with jriver-mediaserver or jriver-mediacenter services
		        --vncpass and --display are optional (see below)
		    jriver-xvnc (system)
		        Enable and start a new Xvnc session running JRiver Media Center
		        --vncpass PASSWORD
		            Set the vnc password for x11vnc/Xvnc access. If no password is set, installJRMC
		            will either use existing password stored in \$HOME/.vnc/jrmc_passwd or use no password
		        --display DISPLAY
		            Display to use for x11vnc/Xvnc (default: The current display (x11vnc) or the
		            current display incremented by 1 (Xvnc))
		    jriver-createrepo (system)
		        Install hourly service to build latest MC RPM and run createrepo

		CONTAINERS (TODO: Under construction)
		    mediacenter-xvnc
		    createrepo
	EOF
}

#######################################
# Helpers
#######################################
debug() { (( DEBUG )) && echo "Debug: $*"; }
err() { echo "Error: $*" >&2; }
askOk() {
    declare response
    (( YES_SWITCH )) && return 0
    read -r -p "$* [y/N]: " response
    [[ ${response,,} =~ ^(yes|y)$ ]]
}
execute() {
    if debug "$*"; then
        "$@"
    else
        "$@" &>/dev/null
    fi
}


#######################################
# Perform OS detection and fallback
# Generate OS-specific functions
#######################################
init() {
    debug "Running: ${FUNCNAME[0]}"

    declare -g ID RPM_MGR ARCH
    declare -ga PKG_INSTALL PKG_REMOVE PKG_UPDATE PKG_QUERY

    echo "Starting installJRMC"
    (( DEBUG )) || echo "To enable debugging output, use --debug or -d"

    (( EUID == 0 )) && err "Running as root user"

    if [[ -e /etc/os-release ]]; then
        source "/etc/os-release"
    else
        err "/etc/os-release not found"
        err "Your OS is unsupported"
        printHelp
        exit 1
    fi

    # Detect architecture and translate to MC convention
    # Override with user input with getopt
    ARCH=$(uname -m)
    case $ARCH in
        x86_64)
            ARCH="amd64"
            ;;
        aarch64)
            ARCH="arm64"
            ;;
    esac

    debug "Detected host platform: $ID $VERSION_ID $ARCH"

    # normalize ID and set distro-specific vars
    case $ID in
        debian|arch)
            ;;
        centos|fedora)
            if hash dnf &>/dev/null; then
                RPM_MGR="dnf"
            elif hash yum &>/dev/null; then
                RPM_MGR="yum"
            fi
            ;;
        rhel|almalinux)
            ID="centos"
            ;;
        linuxmint|neon|zorin|*ubuntu*)
            ID="ubuntu"
            if [[ ${VERSION_ID%.*} -ge 24 ]]; then
                debug "Switching to bookworm for *buntu 24"
                declare -g DEBIANBASE='bookworm'
            fi
            ;;
        *suse*)
            ID="suse"
            ;;
        raspbian)
            ID="debian"
            ;;
        *)
            err "Autodetecting distro, this is unreliable and --compat may be required"
            if hash dnf &>/dev/null; then
                ID="fedora"
                RPM_MGR="dnf"
            elif hash yum &>/dev/null; then
                ID="centos"
                RPM_MGR="yum"
                COMPAT_SWITCH=1
            elif hash apt-get &>/dev/null; then
                ID="ubuntu"
            elif hash pacman &>/dev/null; then
                ID="arch"
            else
                err "OS detection failed!"
                askOk "Continue with manual installation?" || exit 1
                ID="unknown"
                REPO_INSTALL_SWITCH=0
                BUILD_SWITCH=1
                LOCAL_INSTALL_SWITCH=1
            fi
    esac

    [[ $ID != "unknown" ]] && debug "Using host platform: $ID $VERSION_ID"

    # Abstract distro-specific package manager commands 
    case $ID in
        fedora|centos)
            PKG_INSTALL=(execute sudo "$RPM_MGR" install -y)
            PKG_REMOVE=(execute sudo "$RPM_MGR" remove -y)
            PKG_UPDATE=(execute sudo "$RPM_MGR" makecache)
            PKG_QUERY=(rpm -q)
            PKG_INSTALL_LOCAL(){ installMCRPM; }
            ;;
        debian|ubuntu)
            PKG_INSTALL=(execute sudo apt-get -f install -y -q0)
            PKG_REMOVE=(execute sudo apt-get remove --auto-remove -y -q0)
            PKG_UPDATE=(execute sudo apt-get update -y -q0)
            PKG_QUERY=(dpkg -s)
            PKG_INSTALL_LOCAL(){ installMCDEB; }
            ;;
        suse)
            PKG_INSTALL=(execute sudo zypper --gpg-auto-import-keys --non-interactive --quiet install --force --no-confirm)
            PKG_REMOVE=(execute sudo zypper --non-interactive --quiet remove --clean-deps)
            PKG_UPDATE=(execute sudo zypper --non-interactive --quiet refresh jriver)
            PKG_QUERY=(rpm -q)
            PKG_INSTALL_LOCAL(){ installMCRPM; }
            ;;
        arch)
            PKG_INSTALL=(execute sudo pacman -Sy --noconfirm)
            PKG_REMOVE=(execute sudo pacman -Rs --noconfirm)
            PKG_UPDATE=(execute sudo pacman -Syy)
            PKG_QUERY=(sudo pacman -Qs)
            PKG_INSTALL_LOCAL(){ installMCARCH; }
            ;;
        unknown)
            PKG_INSTALL=(:)
            PKG_REMOVE=(:)
            PKG_UPDATE=(:)
            PKG_QUERY=(:)
            PKG_INSTALL_LOCAL(){ installMCGENERIC; }
    esac
}


#######################################
# Parses user input and sets sensible defaults
#######################################
parseInput() {
    debug "Running: ${FUNCNAME[0]}"

    declare -g BUILD_SWITCH REPO_INSTALL_SWITCH COMPAT_SWITCH TEST_SWITCH
    declare -g LOCAL_INSTALL_SWITCH CREATEREPO_SWITCH UNINSTALL_SWITCH
    declare -g YES_SWITCH USER_VERSION_SWITCH USER_ARCH
    declare -g RESTOREFILE BETAPASS SERVICE_TYPE
    declare -g VNCPASS USER_DISPLAY
    declare -ga SERVICES CONTAINERS
    declare long_opts short_opts input

    # Defaults 
    declare -g BUILD_TARGET="$ID"
    declare -g REPO_TARGET="$ID"
    declare -g CREATEREPO_USER="$USER"
    declare -g SCRIPTDIR=; SCRIPTDIR=$( cd -- "$( dirname -- "${BASH_SOURCE[0]}" )" &> /dev/null && pwd )
    declare -g OUTPUTDIR="$SCRIPTDIR/output"
    declare -g CREATEREPO_WEBROOT="/var/www/jriver"
    declare -g USER="${SUDO_USER:-$USER}"
    declare -g HOME; HOME=$(getent passwd "$USER" | cut -d: -f6)

    if [[ $# -eq 0 ]] || 
    [[ $# -eq 1 && " $1 " =~ ^( --debug | -d | -y | --yes )$ ]] &&
    [[ $ID != "unknown" ]]; then
        REPO_INSTALL_SWITCH=1
    elif [[ $# -eq 1 && " $1 " =~ ^( --compat )$ ]]; then
        BUILD_SWITCH=1
        LOCAL_INSTALL_SWITCH=1
    fi

    long_opts="install:,build::,outputdir:,mcversion:,restorefile:,betapass:,"
    long_opts+="service-type:,service:,services:,"
    long_opts+="version,debug,verbose,help,uninstall,tests,"
    long_opts+="createrepo::,createrepo-webroot:,createrepo-user:,"
    long_opts+="vncpass:,display:,container:,compat,arch:,yes,auto"
    short_opts="+i:vb::dhus:c:"

    # Reset DEBUG and catch with getopt
    declare -g DEBUG=0

    if input=$(getopt -o $short_opts -l $long_opts -- "$@"); then
        eval set -- "$input"
        while true; do
            case $1 in
                --install|-i)
                    shift
                    case $1 in
                        local|rpm)
                            BUILD_SWITCH=1
                            LOCAL_INSTALL_SWITCH=1
                            ;;
                        repo|remote)
                            REPO_INSTALL_SWITCH=1
                            ;;
                    esac
                    ;;
                --build|-b)
                    BUILD_SWITCH=1
                    shift && BUILD_TARGET="$1"
                    ;;
                --outputdir)
                    shift && OUTPUTDIR="$1"
                    ;;
                --mcversion)
                    shift
                    MC_VERSION="$1"
                    USER_VERSION_SWITCH=1
                    ;;
                --arch)
                    shift && USER_ARCH="$1"
                    ;;
                --restorefile)
                    shift && RESTOREFILE="$1"
                    ;;
                --betapass)
                    shift && BETAPASS="$1"
                    ;;
                --service-type)
                    shift && SERVICE_TYPE="$1"
                    ;;
                --service|-s|--services)
                    shift && SERVICES+=("$1")
                    ;;
                --createrepo)
                    BUILD_SWITCH=1
                    CREATEREPO_SWITCH=1
                    shift && REPO_TARGET="$1" && BUILD_TARGET="$1"
                    ;;
                --createrepo-webroot)
                    shift && CREATEREPO_WEBROOT="$1"
                    ;;
                --createrepo-user)
                    shift && CREATEREPO_USER="$1"
                    ;;
                --vncpass)
                    shift && VNCPASS="$1"
                    ;;
                --display)
                    shift && USER_DISPLAY="$1"
                    ;;
                --compat)
                    COMPAT_SWITCH=1
                    BUILD_SWITCH=1
                    ;;
                --container|-c)
                    shift && CONTAINERS+=("$1")
                    ;;
                --yes|-y|--auto)
                    YES_SWITCH=1
                    ;;
                --version|-v)
                    echo "Version: $SCRIPTVERSION"
                    exit 0
                    ;;
                --debug|-d|--verbose)
                    DEBUG=1
                    ;;
                --help|-h)
                    printHelp 
                    exit
                    ;;
                --uninstall|-u)
                    UNINSTALL_SWITCH=1
                    ;;
                --tests)
                    TEST_SWITCH=1
                    ;;
                --)
                    shift
                    break
                    ;;
            esac
            shift
        done
    else
        err "Incorrect options provided"
        printHelp && exit 1
    fi
}


#######################################
# Uses several methods to determine the latest JRiver MC version
# TODO but how to determine build distro `$DEBIANBASE=bullseye`?
#######################################
setMCVersion() {
    debug "Running: ${FUNCNAME[0]}"

    declare -g MC_VERSION_SOURCE MC_MVERSION MC_ROOT 
    declare -g MC_PKG MC_RPM MC_STUB MC_STUB_TARGET
    declare cnt

    # User input
    if (( USER_VERSION_SWITCH )) &&
    [[ $MC_VERSION =~ ([0-9]+.[0-9]+.[0-9]+) ]]; then
        MC_VERSION_SOURCE="user input"
    # Containerized package manager
    else
        echo "Determining latest MC version"
        if installPackage --silent buildah &&
        hash buildah &>/dev/null &&
        cnt=$(buildah from --quiet debian:$DEBIANBASE-slim) &>/dev/null &&
        buildah run "$cnt" -- bash -c \
            "echo 'deb [trusted=no arch=amd64,i386,armhf,arm64] http://dist.jriver.com/latest/mediacenter/ $DEBIANBASE main' > /etc/apt/sources.list 2>&1" &>/dev/null &&
        buildah run "$cnt" -- bash  -c \
            "apt update --allow-insecure-repositories &>/dev/null" &>/dev/null &&
        MC_VERSION=$(buildah run "$cnt" -- apt-cache policy mediacenter?? | grep Candidate | awk '{print $2}' | sort -V | tail -n1) &>/dev/null &&
        [[ $MC_VERSION =~ ([0-9]+.[0-9]+.[0-9]+) ]]; then
            MC_VERSION_SOURCE="containerized package manager"
            execute buildah rm "$cnt"
        # Webscrape
        elif installPackage wget && MC_VERSION=$(wget -qO- "$BOARDURL" | grep -o "[0-9][0-9]\.[0-9]\.[0-9]\+" | head -n 1) &&
        [[ $MC_VERSION =~ ([0-9]+.[0-9]+.[0-9]+) ]]; then
            MC_VERSION_SOURCE="webscrape"
        # Hardcoded
        else
            declare -g MC_VERSION="$MC_VERSION_HARDCODE"
            MC_VERSION_SOURCE="hardcoded or MC_VERSION env"
            err "Warning! Using hardcoded version number"
        fi
    fi
    
    MC_MVERSION="${MC_VERSION%%.*}"
    MC_PKG="mediacenter$MC_MVERSION"
    MC_RPM="$OUTPUTDIR/RPMS/x86_64/mediacenter$MC_MVERSION-$MC_VERSION.x86_64.rpm"
    MC_ROOT="/usr/lib/jriver/Media Center $MC_MVERSION"
    MC_STUB="$MC_ROOT/mc$MC_MVERSION"
    MC_STUB_TARGET="/usr/bin/mc$MC_MVERSION"

    if [[ $MC_VERSION_SOURCE == "user input" ]]; then
        # Append explicit package version when user provides --mcversion
        case $ID in
            fedora|centos|suse)
                MC_PKG+="-$MC_VERSION"
                ;;
            debian|ubuntu)
                MC_PKG+="=$MC_VERSION"
                ;;
        esac
    fi
    echo "Using MC version $MC_VERSION determined by $MC_VERSION_SOURCE"
    [[ $MC_VERSION_SOURCE == "user input" ]] || echo "To override, use --mcversion"
    debug "MVERSION: $MC_MVERSION, MC_VERSION: $MC_VERSION, MC_PKG: $MC_PKG, MC_RPM: $MC_RPM"
}


#######################################
# Installs a package using the system package manager
# Arguments:
#   One or more package names
# Options:
#   --no-install-check: Do not check if package is already installed
#   --no-gpg-check: Disable GPG checks for RPM based distros
#   --allow-downgrades: Useful for installing specific MC versions
#   --silent, -s: Do not print errors (useful for optional packages)
#######################################
installPackage() {
    debug "Running: ${FUNCNAME[0]}" "$@"

    declare -a pkg_array install_flags
    declare long_opts input pkg 
    declare no_install_check allow_downgrades silent refresh no_gpg_check
    declare -A pkg_aliases

    long_opts="no-install-check,allow-downgrades,no-gpg-check,refresh,silent"

    if input=$(getopt -o +s -l "$long_opts" -- "$@"); then
        eval set -- "$input"
        while true; do
            case $1 in
                --no-install-check)
                    no_install_check=1
                    ;;
                --allow-downgrades)
                    allow_downgrades=1
                    ;;
                --no-gpg-check)
                    no_gpg_check=1
                    ;;
                --refresh)
                    refresh=1
                    ;;
                --silent|-s)
                    silent=1
                    ;;
                --)
                    shift
                    break
                    ;;
            esac
            shift
        done
    else
        err "Incorrect options provided"
        exit 1
    fi

    # Package aliases
    case $ID in
        debian|ubuntu)
            pkg_aliases["rpm-build"]="rpm"
            pkg_aliases["createrepo_c"]="createrepo"
            pkg_aliases["tigervnc-server"]="tigervnc-standalone-server"
            ;;
    esac

    # Filter installed packages
    for pkg in "$@"; do
        if [[ -v pkg_aliases[$pkg] ]]; then
            debug "Aliasing $pkg to ${pkg_aliases[$pkg]}"
            pkg=${pkg_aliases[$pkg]}
        fi
        if (( no_install_check )) || 
        ! (hash "$pkg" &>/dev/null || 
        "${PKG_QUERY[@]}" "$pkg" &>/dev/null); then
            pkg_array+=("$pkg")
        else
            debug "$pkg already installed, skipping installation"
        fi
    done

    # Generate distro-specific install flags
    case $ID in
        debian|ubuntu)
            (( allow_downgrades )) && install_flags+=(--allow-downgrades)
            ;;
        fedora|centos)
            (( allow_downgrades )) && install_flags+=(--allowerasing)
            (( no_gpg_check )) && install_flags+=(--nogpgcheck)
            (( refresh )) && install_flags+=(--refresh)
            ;;
        suse)
            (( no_gpg_check )) && 
            install_flags+=(--allow-unsigned-rpm)
            ;;
    esac

    # Install packages from package array
    if [[ ${#pkg_array[@]} -ge 1 ]]; then
        if ! "${PKG_INSTALL[@]}" "${install_flags[@]}" "${pkg_array[@]}"; then       
            (( silent )) || err "Failed to install ${pkg_array[*]}. Attempting to continue"
            return 1
        fi
    fi
    return 0
}


#######################################
# Installs mesa-va-drivers-freeworld
#######################################
installMesa() {
    debug "Running: ${FUNCNAME[0]}"

    # Currently only necessary in Fedora/CentOS
    case $ID in
        fedora|centos)
            if ! "${PKG_QUERY[@]}" mesa-va-drivers-freeworld &>/dev/null; then
                if "${PKG_QUERY[@]}" mesa-va-drivers &>/dev/null; then
                    if ! execute sudo dnf swap -y \
                        mesa-va-drivers \
                        mesa-va-drivers-freeworld; then
                        err "Package swap failed!"
                        return 1
                    fi
                else
                    "${PKG_INSTALL[@]}" mesa-va-drivers-freeworld
                fi
            fi
            if ! "${PKG_QUERY[@]}" mesa-vdpau-drivers-freeworld &>/dev/null; then
                if "${PKG_QUERY[@]}" mesa-vdpau-drivers &>/dev/null; then
                    if ! execute sudo dnf swap -y \
                        mesa-vdpau-drivers \
                        mesa-vdpau-drivers-freeworld; then
                        err "Package swap failed!"
                        return 1
                    fi
                else
                    "${PKG_INSTALL[@]}" mesa-va-drivers-freeworld mesa-vdpau-drivers-freeworld
                fi
            fi
            ;;
    esac
}


#######################################
# Installs JRiver Media Center from a remote repository
#######################################
installMCFromRepo() {
    debug "Running: ${FUNCNAME[0]}"

    case $ID in
        fedora|centos)
            sudo bash -c "cat <<-EOF > /etc/yum.repos.d/jriver.repo
				[jriver]
				name=JRiver Media Center repo by BryanC
				baseurl=https://repos.bryanroessler.com/jriver
				gpgcheck=0
			EOF"
            ;;
        debian|ubuntu)
            declare repo_dir="/etc/apt/sources.list.d"
            [[ -d $repo_dir ]] || execute sudo mkdir -p "$repo_dir"
            # Remove existing MC repositories
            execute sudo rm -rf "$repo_dir"/mediacenter*.list
            installPackage wget
            sudo bash -c "cat <<-EOF > $repo_dir/jriver.list
				deb [trusted=yes arch=amd64,i386,armhf,arm64] http://dist.jriver.com/latest/mediacenter/ $DEBIANBASE main
			EOF"
            wget -qO- "http://dist.jriver.com/mediacenter@jriver.com.gpg.key" | 
                sudo tee /etc/apt/trusted.gpg.d/jriver.asc &>/dev/null
            ;;
        *)
            err "An MC repository for $ID is not yet available"
            err "Use --install local to install MC on $ID"
            return 1
            ;;
    esac

    if ! "${PKG_UPDATE[@]}"; then
        err "Package update failed!"
        return 1
    fi

    # Install mesa-va-drivers-freeworld separately from the RPM using dnf swap
    installMesa

    if ! installPackage \
        --no-install-check \
        --allow-downgrades \
        --no-gpg-check \
        "$MC_PKG"; then
        err "Package install failed!"
        return 1
    fi
}


#######################################
# Acquires the source DEB package from JRiver
#######################################
acquireDeb() {
    debug "Running: ${FUNCNAME[0]}"

    declare -g MC_DEB="$OUTPUTDIR/SOURCES/MediaCenter-$MC_VERSION-${USER_ARCH:-$ARCH}.deb"

    debug "MC_DEB=$MC_DEB"

    # If deb file already exists, skip download
    if [[ -f $MC_DEB ]]; then
        echo "Using existing DEB: $MC_DEB"
        return 0
    fi

    if [[ -v BETAPASS ]] && 
        echo "Checking beta repo for DEB package" && execute wget -q -O "$MC_DEB" \
            "https://files.jriver-cdn.com/mediacenter/channels/v$MC_MVERSION/beta/$BETAPASS/MediaCenter-$MC_VERSION-${USER_ARCH:-$ARCH}.deb"; then
                echo "Found!"
    elif echo "Checking latest repo for DEB package" && execute wget -q -O "$MC_DEB" \
            "https://files.jriver-cdn.com/mediacenter/channels/v$MC_MVERSION/latest/MediaCenter-$MC_VERSION-${USER_ARCH:-$ARCH}.deb"; then
                echo "Found!"
    elif echo "Checking test repo for DEB package" && execute wget -q -O "$MC_DEB" \
            "https://files.jriver-cdn.com/mediacenter/test/MediaCenter-$MC_VERSION-${USER_ARCH:-$ARCH}.deb"; then
                echo "Found!"
    else
        err "Cannot find DEB file"
        exit 1
    fi

    if [[ -f $MC_DEB ]]; then
        echo "Downloaded MC $MC_VERSION DEB to $MC_DEB"
    else
        err "Downloaded DEB file missing or corrupted"
        exit 1
    fi
}


#######################################
# Creates a SPEC file and builds the RPM from the source DEB using rpmbuild
#######################################
buildRPM() {
    debug "Running: ${FUNCNAME[0]}"

    declare i rpmbuild_cmd
    declare -a requires recommends

    # skip rebuilding the rpm if it already exists
    if [[ -f $MC_RPM ]]; then
        echo "$MC_RPM already exists. Skipping build step"
        return 0
    fi

    # Load deb dependencies into array
    IFS=',' read -ra requires <<< "$(dpkg-deb -f "$MC_DEB" Depends)"
    IFS=',' read -ra recommends <<< "$(dpkg-deb -f "$MC_DEB" Recommends)"

    # Clean up formatting
    requires=("${requires[@]%%|*}")
    requires=("${requires[@]/?:/}")
    requires=("${requires[@]# }")
    requires=("${requires[@]% }")
    requires=("${requires[@]//\(/}")
    requires=("${requires[@]//)/}")
    recommends=("${recommends[@]%%|*}")
    recommends=("${recommends[@]/?:/}")
    recommends=("${recommends[@]# }")
    recommends=("${recommends[@]% }")
    recommends=("${recommends[@]//\(/}")
    recommends=("${recommends[@]//)/}")

    # Translate package names
    case $BUILD_TARGET in
        fedora|centos)
            requires=("${requires[@]/libc6/glibc}")
            requires=("${requires[@]/libasound2/alsa-lib}")
            requires=("${requires[@]/libuuid1/libuuid}")
            requires=("${requires[@]/libx11-6/libX11}")
            requires=("${requires[@]/libxext6/libXext}")
            requires=("${requires[@]/libxcb1*/libxcb}") # TODO Remove minimum version for MC31 (*)
            requires=("${requires[@]/libxdmcp6/libXdmcp}")
            requires=("${requires[@]/libstdc++6/libstdc++}")
            requires=("${requires[@]/libgtk-3-0/gtk3}")
            requires=("${requires[@]/libgl1/mesa-libGL}")
            requires=("${requires[@]/libpango-1.0-0/pango}")
            requires=("${requires[@]/libpangoft2-1.0-0/pango}")
            requires=("${requires[@]/libpangox-1.0-0/pango}")
            requires=("${requires[@]/libpangoxft-1.0-0/pango}")
            requires=("${requires[@]/libnss3/nss}")
            requires=("${requires[@]/libnspr4/nspr}")
            requires=("${requires[@]/libgomp1/libgomp}")
            requires=("${requires[@]/libfribidi0/fribidi}")
            requires=("${requires[@]/libfontconfig1/fontconfig}")
            requires=("${requires[@]/libfreetype6/freetype}")
            requires=("${requires[@]/libharfbuzz0b/harfbuzz}")
            requires=("${requires[@]/libgbm1/mesa-libgbm}")
            requires=("${requires[@]/libva2/libva}")
            requires=("${requires[@]/libva-drm2/libva}")
            requires=("${requires[@]/libepoxy0/libepoxy}")
            requires=("${requires[@]/liblcms2-2/lcms2}")
            requires=("${requires[@]/libvulkan1/vulkan-loader}")
            requires=("${requires[@]/libepoxy0/libepoxy}")
            requires=("${requires[@]/python/python3}")
            requires=("${requires[@]/libwebkit2gtk*/webkit2gtk4.0}")
            recommends+=(mesa-va-drivers-freeworld)
            ;;
        suse)
            requires=("${requires[@]/libc6/glibc}")
            requires=("${requires[@]/libasound2/alsa-lib}")
            requires=("${requires[@]/libx11-6/libX11-6}")
            requires=("${requires[@]/libxext6/libXext6}")
            requires=("${requires[@]/libxdmcp6/libXdmcp6}")
            requires=("${requires[@]/libgtk-3-0/gtk3}")
            requires=("${requires[@]/libgl1/Mesa-libGL1}")
            requires=("${requires[@]/libpango-1.0-0/pango}")
            requires=("${requires[@]/libpangoft2-1.0-0/pango}")
            requires=("${requires[@]/libpangox-1.0-0/pango}")
            requires=("${requires[@]/libpangoxft-1.0-0/pango}")
            requires=("${requires[@]/libnss3/mozilla-nss}")
            requires=("${requires[@]/libnspr4/mozilla-nspr}")
            requires=("${requires[@]/libfribidi0/fribidi}")
            requires=("${requires[@]/libfontconfig1/fontconfig}")
            requires=("${requires[@]/libharfbuzz0b/libharfbuzz0}")
            requires=("${requires[@]/libwebkit2gtk*/libwebkit2gtk-4_0-37}")
            for i in "${!requires[@]}"; do
                [[ ${requires[$i]} == "mesa-vulkan-drivers" ]] && unset -v 'requires[i]'
            done
            recommends+=(libvulkan_intel)
            recommends+=(libvulkan_radeon)
            ;;
    esac

    # Convert array to newline delim'd string (for heredoc)
    printf -v requires "Requires: %s\n" "${requires[@]}"
    printf -v recommends "Recommends: %s\n" "${recommends[@]}"
    # Strip last newline
    requires="${requires%?}" 
    recommends="${recommends%?}"

    if (( COMPAT_SWITCH )); then
        # Strip minimum versions
        requires=$(echo "$requires" | awk -F" " 'NF == 4 {print $1 " " $2} NF != 4 {print $0}')
    fi

    # Create spec file
    cat <<-EOF > "$OUTPUTDIR/SPECS/mediacenter.spec"
		Name:    mediacenter$MC_MVERSION
		Version: $MC_VERSION
		Release: 1
		Summary: JRiver Media Center
		Group:   Applications/Media
		Source0: http://files.jriver-cdn.com/mediacenter/channels/v$MC_MVERSION/latest/MediaCenter-$MC_VERSION-${USER_ARCH:-$ARCH}.deb
		BuildArch: x86_64
		%define _rpmfilename %%{ARCH}/%%{NAME}-%%{version}.%%{ARCH}.rpm

		AutoReq:  0

		$requires
		$recommends

		Conflicts: MediaCenter

		Provides: mediacenter$MC_MVERSION

		License: Copyright 1998-2024, JRiver, Inc.  All rights reserved.  Protected by U.S. patents #7076468 and #7062468
		URL: http://www.jriver.com/

		%define __provides_exclude_from ^%{_libdir}/jriver/.*/.*\\.so.*$

		%description
		Media Center is more than a world class player.

		%global __os_install_post %{nil}
		%prep

		%build

		%install
		dpkg -x %{S:0} %{buildroot}

		%post -p /sbin/ldconfig
		%postun -p /sbin/ldconfig

		%files
		%{_bindir}/mediacenter$MC_MVERSION
		%{_bindir}/mc$MC_MVERSION
		%{_libdir}/jriver
		%{_datadir}
		%exclude %{_datadir}/applications/media_center_packageinstaller_$MC_MVERSION.desktop
		/etc/security/limits.d/*
	EOF

    # Run rpmbuild
    echo "Building MC $MC_VERSION RPM, this may take some time"
    rpmbuild_cmd=(
        rpmbuild 
            --define="%_topdir $OUTPUTDIR" 
            --define="%_libdir /usr/lib" 
            -bb
            "$OUTPUTDIR/SPECS/mediacenter.spec"
    )
    if execute "${rpmbuild_cmd[@]}" && [[ -f $MC_RPM ]] ; then
        echo "Build successful. The RPM file is located at: $MC_RPM"
    else
        err "Build failed"
        # For automation, let's remove the source DEB and reaquire it on next 
        # run after failure in case it is corrupted or buggy
        [[ -f $MC_DEB ]] && echo "Removing source DEB" && rm -f "$MC_DEB"
        exit 1
    fi
}


#######################################
# Installs Media Center DEB package and optional compatability fixes
#######################################
installMCDEB() {
    debug "Running: ${FUNCNAME[0]}"    

    if (( COMPAT_SWITCH )); then
        declare extract_dir && extract_dir="$(mktemp -d)"
        pushd "$extract_dir" &>/dev/null || return
        hash ar &>/dev/null || installPackage binutils
        execute ar x "$MC_DEB"
        execute tar xJf "control.tar.xz"
        # Remove minimum version specifiers from control file
        sed -i 's/ ([^)]*)//g' "control"
        sed -i 's/([^)]*)//g' "control" # TODO MC DEB package error
        [[ $ID == "ubuntu" && ${VERSION_ID%.*} -le 16 ]] &&
        ! grep -q zorin /etc/os-release && # TODO ugly ZorinOS workaround
        sed -i 's/libva2/libva1/g' "control"
        execute tar -cJf "control.tar.xz" "control" "postinst"
        declare -g MC_DEB="${MC_DEB/.deb/.compat.deb}"
        execute ar rcs "$MC_DEB" "debian-binary" "control.tar.xz" "data.tar.xz"
        popd &>/dev/null || return
        execute rm -rf "$extract_dir"
    fi

    installPackage \
        --no-install-check \
        --no-gpg-check \
        --allow-downgrades \
        "$MC_DEB"
}


#######################################
# Installs Media Center RPM package
#######################################
installMCRPM() {
    debug "Running: ${FUNCNAME[0]}"

    # Install mesa-va-freeworld separately from the RPM for dnf swap
    installMesa
    
    installPackage --no-install-check --no-gpg-check --allow-downgrades "$MC_RPM"
}


#######################################
# Installs Media Center manually
#######################################
installMCGENERIC() {
    debug "Running: ${FUNCNAME[0]}"

    declare -a raw_files

    echo "Using generic installation method!"

    declare extract_dir && extract_dir="$(mktemp -d)"
    pushd "$extract_dir" &>/dev/null || return
    execute ar x "$MC_DEB"
    execute tar xJf "control.tar.xz"
    echo "You must install the following dependencies manually:"
    grep -i "Depends:" control
    readarray -t raw_files < <(tar xJvf data.tar.xz)
    # Output to log file
    for f in "${raw_files[@]/#./}"; do
        echo "$f" >> "$SCRIPTDIR/.uninstall"
    done
    # Manually install files
    for f in "${raw_files[@]}"; do
        execute sudo cp -a "$f" "${f/#./}"
    done
    popd &>/dev/null || return
    execute rm -rf "$extract_dir"
    return 0
}


#######################################
# Installs local Media Center PKGBUILD
#######################################
installMCARCH() {
    debug "Running: ${FUNCNAME[0]}"

    [[ -d $OUTPUTDIR/PKGBUILD ]] || execute mkdir -p "$OUTPUTDIR/PKGBUILD"

    cat <<-EOF > "$OUTPUTDIR/PKGBUILD/mediacenter.pkgbuild"
		pkgname=mediacenter$MC_MVERSION
		pkgver=$MC_VERSION
		pkgrel=1
		pkgdesc="The Most Comprehensive Media Software"
		arch=('x86_64')
		url="http://www.jriver.com/"
		license=('custom')
		depends=('alsa-lib' 'gcc-libs' 'libx11' 'libxext' 'libxcb' 'libxau' 'libxdmcp' 'util-linux' 'libxext' 'gtk3')
		optdepends=(
			'mesa-libgl: nouveau video support' 
			'nvidia-libgl: nvidia video support' 
			'nvidia-utils: nvidia vulkan support' 
			'vulkan-intel: intel vulkan support' 
			'vulkan-radeon: amd vulkan support' 
			'vorbis-tools: ogg vorbis support' 
			'musepack-tools: musepack support'
		)
		source=("http://files.jriver-cdn.com/mediacenter/channels/v$MC_MVERSION/latest/MediaCenter-$MC_VERSION-${USER_ARCH:-$ARCH}.deb")

		package() {
			cd "\$srcdir"
			bsdtar xf data.tar.xz -C "\$pkgdir"
		}
	EOF
    
    pushd "$OUTPUTDIR/PKGBUILD" &>/dev/null || return

    if ! execute makepkg \
        --install \
        --syncdeps \
        --clean \
        --cleanbuild \
        --skipinteg \
        --force \
        --noconfirm \
        -p mediacenter.pkgbuild; then
        echo "makepkg failed"
        exit 1
    fi

    popd &>/dev/null || return
}


#######################################
# Copy the RPM to createrepo-webroot and runs createrepo as the createrepo-user
#######################################
runCreaterepo() {
    debug "Running: ${FUNCNAME[0]}"

    declare -a cr_cmd

    installPackage createrepo_c

    # If the webroot does not exist, create it
    if [[ ! -d $CREATEREPO_WEBROOT ]]; then
        if ! execute sudo -u "$CREATEREPO_USER" mkdir -p "$CREATEREPO_WEBROOT"; then
            if ! ( execute sudo mkdir -p "$CREATEREPO_WEBROOT" && 
            execute sudo chown -R "$CREATEREPO_USER:$CREATEREPO_USER" "$CREATEREPO_WEBROOT" ); then
                err "Could not create the createrepo-webroot path!"
                err "Make sure that the webroot $CREATEREPO_WEBROOT is writeable by user $CREATEREPO_USER"
                err "Or change the repo ownership with --createrepo-user"
                return 1
            fi
        fi
    fi

    # Copy built rpms to webroot
    if ! ( execute sudo cp -nf "$MC_RPM" "$CREATEREPO_WEBROOT" && 
    execute sudo chown -R "$CREATEREPO_USER:$CREATEREPO_USER" "$CREATEREPO_WEBROOT" ); then
        err "Could not copy $MC_RPM to $CREATEREPO_WEBROOT"
        return 1
    fi

    # Run createrepo
    cr_cmd=(sudo -u "$CREATEREPO_USER" createrepo -q "$CREATEREPO_WEBROOT")
    [[ -d $CREATEREPO_WEBROOT/repodata ]] && cr_cmd+=(--update)
    if ! execute "${cr_cmd[@]}"; then
        cr_cmd=(sudo createrepo -q "$CREATEREPO_WEBROOT")
        [[ -d $CREATEREPO_WEBROOT/repodata ]] && cr_cmd+=(--update)
        if ! (execute "${cr_cmd[@]}" && 
        execute sudo chown -R "$CREATEREPO_USER:$CREATEREPO_USER" "$CREATEREPO_WEBROOT"); then
            err "createrepo failed"
            return 1
        fi
    fi
}


#######################################
# Symlink MC stub
#######################################
symlinkStub() {
    debug "Running: ${FUNCNAME[0]}"

    if [[ -f $MC_STUB && ! -e $MC_STUB_TARGET ]]; then
        if ! execute sudo ln -fs "$MC_STUB" "$MC_STUB_TARGET"; then
            err "Symlinking $MC_STUB to $MC_STUB_TARGET failed"
            return 1
        fi
    fi
}


#######################################
# Symlink certificates if they do not exist in default location
#######################################
symlinkCerts() {
    debug "Running: ${FUNCNAME[0]}"

    declare mc_cert_link="$MC_ROOT/ca-certificates.crt"
    declare target_cert f
    declare -a source_certs=(
        "/etc/pki/ca-trust/extracted/pem/tls-ca-bundle.pem" 
        "/var/lib/ca-certificates/ca-bundle.pem")

    target_cert=$(readlink -f "$mc_cert_link")
    [[ -f $target_cert ]] && return 0

    for f in "${source_certs[@]}"; do
        if [[ -f $f ]]; then
            if ! execute sudo ln -fs "$f" "$mc_cert_link"; then
                err "Symlinking certificate failed"
                return 1
            fi
            break
        fi
    done
}


#######################################
# Restore the mjr license file from RESTOREFILE or other common locations
#######################################
restoreLicense() {
    debug "Running: ${FUNCNAME[0]}"

    declare f newest

    # Glob mjr files from common directories
    shopt -s nullglob
    declare -a mjrfiles=(
        "$SCRIPTDIR"/*.mjr 
        "$OUTPUTDIR"/*.mjr 
        "$HOME"/[dD]ownloads/*.mjr
        "$HOME"/[dD]ocuments/*.mjr
    )
    shopt -u nullglob

    if [[ ${#mjrfiles[@]} -gt 0 ]]; then

        debug "mjrfiles=(${mjrfiles[*]})"

        # Sort globbed files by time, newest first
        newest=${mjrfiles[0]}
        for f in "${mjrfiles[@]}"; do
            if [[ -f $f && $f -nt $newest ]]; then
                newest=$f
            fi
        done

        debug "Latest mjrfile: $newest"

        for f in "$RESTOREFILE" "$newest"; do
            if [[ -f $f ]]; then
                if execute "mediacenter$MC_MVERSION" "/RestoreFromFile" "$f"; then
                    return 0
                fi
            fi
        done
    fi
}


#######################################
# Opens ports using the system firewall tool
# Arguments:
#   1. Service name
#   2. List of ports in firewall-cmd format
#######################################
openFirewall() {
    debug "Running: ${FUNCNAME[0]}" "$@"

    declare port
    declare service="$1"
    shift
    declare -a f_ports=("$@") # for firewall-cmd
    declare u_ports="$*"
    declare u_ports="${u_ports// /|}" # concatenate
    u_ports="${u_ports//-/\:}" # for ufw

    if hash firewall-cmd &>/dev/null; then
        if ! sudo firewall-cmd --get-services | grep -q "$service"; then
            execute sudo firewall-cmd --permanent "--new-service=$service"
            execute sudo firewall-cmd --permanent "--service=$service" "--set-description=$service" installed by installJRMC
            execute sudo firewall-cmd --permanent "--service=$service" "--set-short=$service"
            for port in "${f_ports[@]}"; do
                execute sudo firewall-cmd --permanent "--service=$service" "--add-port=$port"
            done
            execute sudo firewall-cmd --add-service "$service" --permanent
            execute sudo firewall-cmd --reload
        fi
    elif hash ufw &>/dev/null; then
        sudo bash -c "cat <<-EOF > /etc/ufw/applications.d/$service
			[$service]
			title=$service
			description=$service installed by installJRMC
			ports=$u_ports
		EOF"
        execute sudo ufw app update "$service"
        execute sudo ufw allow "$service"
    else
        echo "Warning: Install firewall-cmd or ufw to open firewall ports"
        return 1
    fi
}


#######################################
# Create the xvnc or x11vnc password file
# Arguments:
#   Service type (xvnc, x11vnc)
#######################################
setVNCPass() {
    debug "Running: ${FUNCNAME[0]}"

    declare vncpassfile="$HOME/.vnc/jrmc_passwd"

    [[ -d ${vncpassfile%/*} ]] || execute mkdir -p "${vncpassfile%/*}"

    if [[ -f $vncpassfile ]]; then
        if [[ ! -v VNCPASS ]]; then
            err "Refusing to overwrite existing $vncpassfile with an empty password"
            err "Remove existing $vncpassfile or use --vncpass ''"
            return 1
        else
            execute rm -f "$vncpassfile"
        fi
    fi

    if [[ -v VNCPASS ]]; then
        if [[ $1 == "xvnc" ]]; then
            echo "$VNCPASS" | vncpasswd -f > "$vncpassfile"
        elif [[ $1 == "x11vnc" ]]; then
            execute x11vnc -storepasswd "$VNCPASS" "$vncpassfile"
        fi
        return $?
    else
        declare -g NOVNCAUTH=1
    fi
}


#######################################
# Set display and port variables
#######################################
setDisplayVars() {
    debug "Running: ${FUNCNAME[0]}"

    declare -g DISPLAY DISPLAYNUM NEXT_DISPLAY

    # Check USER_DISPLAY, else environment DISPLAY, else set to :0
    DISPLAY="${USER_DISPLAY:-${DISPLAY:-:0}}"
    DISPLAYNUM="${DISPLAY#*:}" # strip prefix
    DISPLAYNUM="${DISPLAYNUM%%.*}" # strip suffix
    # Increment each time we run this
    if (( NEXT_DISPLAYNUM )); then
        declare -g NEXT_DISPLAYNUM=$(( NEXT_DISPLAYNUM + 1 ))
    else
        declare -g NEXT_DISPLAYNUM=$(( DISPLAYNUM + 1 ))
    fi
    declare -g NEXT_DISPLAY=":$NEXT_DISPLAYNUM"
}


#######################################
# Create associated service variables based on service name
# Arguments
#   Pre-defined service name
#######################################
setServiceVars() {
    debug "Running: ${FUNCNAME[0]}" "$*"

    declare -g SERVICE_NAME SERVICE_FNAME TIMER_NAME TIMER_FNAME 
    declare -g USER_STRING DISPLAY_STRING GRAPHICAL_TARGET
    declare -ga RELOAD ENABLE DISABLE IS_ENABLED IS_ACTIVE
    declare -a systemctl_prefix
    declare service_name="$1"
    declare service_type="${SERVICE_TYPE:-${2:-system}}"
    declare service_dir="/usr/lib/systemd/$service_type"

    if [[ $USER == "root" && $service_type == "user" ]]; then
        err "Trying to install user service as root"
        err "Use --service-type service and/or execute installJRMC as non-root user"
        return 1
    fi

    if [[ $service_type == "system" ]]; then
        systemctl_prefix=(sudo systemctl)
        GRAPHICAL_TARGET="graphical.target"
    elif [[ $service_type == "user" ]]; then
        systemctl_prefix=(systemctl --user)
        GRAPHICAL_TARGET="default.target"
    fi

    # systemctl commands
    RELOAD=(execute "${systemctl_prefix[@]}" daemon-reload)
    ENABLE=(execute "${systemctl_prefix[@]}" enable --now)
    DISABLE=(execute "${systemctl_prefix[@]}" disable --now)
    IS_ENABLED=(execute "${systemctl_prefix[@]}" is-enabled -q)
    IS_ACTIVE=(execute "${systemctl_prefix[@]}" is-active -q)

    [[ -d $service_dir ]] || execute sudo mkdir -p "$service_dir"

    # TODO Ubuntu needs these in the service file, fedora (and others?) do not
    case $ID in
        ubuntu|debian)
            DISPLAY_STRING="Environment=XAUTHORITY=$XAUTHORITY"
            ;;
        *)
            DISPLAY_STRING=""
            ;;
    esac

    if [[ $service_type == "system" && $USER != "root" ]]; then
        SERVICE_FNAME="$service_dir/$service_name@.service"
        TIMER_FNAME="$service_dir/$service_name@.timer"
        SERVICE_NAME="$service_name@$USER.service"
        TIMER_NAME="$service_name@$USER.timer"
        USER_STRING="User=%I"
    else
        SERVICE_NAME="$service_name.service"
        TIMER_NAME="$service_name.timer"
        SERVICE_FNAME="$service_dir/$SERVICE_NAME"
        TIMER_FNAME="$service_dir/${TIMER_NAME}"
        USER_STRING=""
    fi
}


#######################################
# Starts and enables (at startup) a JRiver Media Center service
# Arguments:
#   Passes arguments as startup options to /usr/bin/mediacenter??
#######################################
service_jriver-mediacenter() {
    debug "Running: ${FUNCNAME[0]}"

    setServiceVars "${FUNCNAME[0]##*_}" "user"

    sudo bash -c "cat <<-EOF > $SERVICE_FNAME
		[Unit]
		Description=JRiver Media Center $MC_MVERSION
		After=$GRAPHICAL_TARGET

		[Service]
		Type=simple
		$USER_STRING
		$DISPLAY_STRING
		Environment=DISPLAY=$DISPLAY
		ExecStart=/usr/bin/mediacenter$MC_MVERSION $*
		KillMode=none
		ExecStop=$MC_STUB_TARGET /MCC 20007
		Restart=always
		RestartSec=10
		TimeoutStopSec=30

		[Install]
		WantedBy=$GRAPHICAL_TARGET
	EOF"

    openFirewall "jriver-mediacenter" "52100-52200/tcp" "1900/udp"

    "${RELOAD[@]}" &&
    "${ENABLE[@]}" "$SERVICE_NAME"
}


#######################################
# Starts and enables (at startup) a JRiver Media Server service
#######################################
service_jriver-mediaserver() {
    debug "Running: ${FUNCNAME[0]}"

    setServiceVars "${FUNCNAME[0]##*_}" "user"

    service_jriver-mediacenter "/MediaServer"
}


#######################################
# Starts and enables (at startup) JRiver Media Center in a new Xvnc session
# TODO https://github.com/TigerVNC/tigervnc/blob/master/unix/vncserver/HOWTO.md
#######################################
service_jriver-xvnc() {
    debug "Running: ${FUNCNAME[0]}"

    setServiceVars "${FUNCNAME[0]##*_}" "system"
    setDisplayVars
    declare -a start_cmd
    declare -g PORT=$(( NEXT_DISPLAYNUM + 5900 ))

    installPackage tigervnc-server

    setVNCPass xvnc

    start_cmd=(
        /usr/bin/vncserver "$NEXT_DISPLAY"
        -geometry 1440x900 
        -alwaysshared
        -autokill
        -xstartup "/usr/bin/mediacenter$MC_MVERSION"
    )

    if (( NOVNCAUTH )); then
        start_cmd+=(
            -name "jriver$NEXT_DISPLAY" 
            -SecurityTypes None
        )
    else
        start_cmd+=(
            -rfbauth "$HOME/.vnc/jrmc_passwd"
        )
    fi

    sudo bash -c "cat <<-EOF > $SERVICE_FNAME
		[Unit]
		Description=Remote desktop service (VNC)
		After=multi-user.target

		[Service]
		Type=forking
		$USER_STRING
		ExecStartPre=/bin/sh -c '/usr/bin/vncserver -kill $NEXT_DISPLAY &>/dev/null || :'
		ExecStart=${start_cmd[*]}
		ExecStop=/usr/bin/vncserver -kill $NEXT_DISPLAY
		Restart=always

		[Install]
		WantedBy=multi-user.target
	EOF"

    "${RELOAD[@]}"

    if ! "${ENABLE[@]}" "$SERVICE_NAME"; then
        err "vncserver failed to start on DISPLAY $NEXT_DISPLAY"
        # Allow to increment 10 times before breaking
        max=$(( DISPLAYNUM + 10 ))
        while [[ $NEXT_DISPLAYNUM -lt $max ]]; do
            echo "Incrementing DISPLAY and retrying"
            service_jriver-xvnc && return
        done
        return 1
    else
        echo "Xvnc running on localhost:$PORT"
        openFirewall "jriver-xvnc" "$PORT/tcp"
        openFirewall "jriver-mediacenter" "52100-52200/tcp" "1900/udp"
        return 0
    fi
}


#######################################
# Starts and enables (at startup) x11vnc screen sharing for the local desktop
#######################################
service_jriver-x11vnc() {
    debug "Running: ${FUNCNAME[0]}"

    setServiceVars "${FUNCNAME[0]##*_}" "user"
    setDisplayVars

    declare -a start_cmd
    declare -g PORT=$(( DISPLAYNUM + 5900 ))

    installPackage x11vnc

    setVNCPass x11vnc

    # If .Xauthority file is missing, generate a dummy for x11vnc -auth guess
    if [[ ! -f "$HOME/.Xauthority" ]]; then
        [[ $XDG_SESSION_TYPE == "wayland" ]] && 
        askOk "Unsupported Wayland session detected for x11vnc, continue?" || return 1
        debug "Generating $HOME/.Xauthority"
        execute touch "$HOME/.Xauthority"
        execute chmod 644 "$HOME/.Xauthority"
        xauth generate "$DISPLAY" . trusted
        xauth add "$HOST$DISPLAY" . "$(xxd -l 16 -p /dev/urandom)"
    fi

    start_cmd=(
        /usr/bin/x11vnc 
        -display "$DISPLAY"
        -noscr
        -auth guess
        -forever
        -bg
    )

    if (( NOVNCAUTH )); then
        start_cmd+=(-nopw)
    else
        start_cmd+=(-rfbauth "$HOME/.vnc/jrmc_passwd")
    fi

    sudo bash -c "cat <<-EOF > $SERVICE_FNAME
		[Unit]
		Description=x11vnc
		After=$GRAPHICAL_TARGET

		[Service]
		$USER_STRING
		Type=forking
		Environment=DISPLAY=$DISPLAY
		ExecStart=${start_cmd[*]}
		Restart=always
		RestartSec=10

		[Install]
		WantedBy=$GRAPHICAL_TARGET
	EOF"

    openFirewall "jriver-x11vnc" "$PORT/tcp"

    "${RELOAD[@]}" &&
    "${ENABLE[@]}" "$SERVICE_NAME" &&
    echo "x11vnc running on localhost:$PORT"
}


#######################################
# Starts and enables (at startup) an hourly service to build the latest version of
# JRiver Media Center RPM from the source DEB and create/update an RPM repository
#######################################
service_jriver-createrepo() {
    debug "Running: ${FUNCNAME[0]}"

    if [[ $CREATEREPO_USER != "$USER" ]]; then
        USER="root" setServiceVars "${FUNCNAME[0]##*_}" "system"
    else
        setServiceVars "${FUNCNAME[0]##*_}" "system"
    fi

    sudo bash -c "cat <<-EOF > $SERVICE_FNAME
		[Unit]
		Description=Builds JRiver Media Center RPM, moves it to the repo dir, and runs createrepo

		[Service]
		$USER_STRING
		ExecStart=$SCRIPTDIR/installJRMC --outputdir=$OUTPUTDIR --createrepo=$REPO_TARGET --createrepo-webroot=$CREATEREPO_WEBROOT --createrepo-user=$CREATEREPO_USER

		[Install]
		WantedBy=multi-user.target
	EOF"

    sudo bash -c "cat <<-EOF > $TIMER_FNAME
		[Unit]
		Description=Run JRiver MC rpmbuild hourly

		[Timer]
		OnCalendar=hourly
		Persistent=true

		[Install]
		WantedBy=timers.target
	EOF"

    "${RELOAD[@]}" &&
    "${ENABLE[@]}" "$TIMER_NAME"
}


#######################################
# CONTAINERS
#######################################
# container_jriver-createrepo() {
#     :
# }


# container_jriver-xvnc() {
#     :
# }


# container_jriver-mediacenter() {

#     installPackage buildah podman

#     if ! CNT=$(buildah from debian:$DEBIANBASE-slim); then
#         echo "Bad base image for container, skipping"
#         return 1
#     fi

#     brc() { buildah run "$CNT" bash -c "$*"; }

#     brc "add-pkg gnupg2 libxss1 wmctrl xdotool ca-certificates inotify-tools libgbm1 ffmpeg"

#     # Install JRiver
#     brc "
#     add-pkg ca-certificates gnupg &&
#     add-pkg --virtual build-dependencies wget &&
#     wget -qO- http://dist.jriver.com/mediacenter@jriver.com.gpg.key | tee /etc/apt/trusted.gpg.d/jriver.asc &&
#     wget -O /etc/apt/sources.list.d/mediacenter${MC_MVERSION}.list http://dist.jriver.com/latest/mediacenter/mediacenter${MC_MVERSION}.list &&
#     apt update &&
#     add-pkg mediacenter${MC_MVERSION} &&
#     del-pkg build-dependencies
#     "

#     buildah config "$CNT" \
#         --author "bryanroessler@gmail.com" \
#         --label maintainer="$MAINTAINER" \
#         --env TZ="$TZ" \
#         --workingdir /app \
#         --cmd "mediacenter$MC_MVERSION"


#     # EXPOSE 5800 5900 52100 52101 52199 1900/udp

#     podman_create_cmd=(
#         podman create 
#         --name "mediacenter$MC_MVERSION"
#     )

#     podman_create_cmd+=(-v "$HOME/.jriver:/root/.jriver")
#     podman_create_cmd+=(-v "$DOWNLOAD_ROOT:/downloads:z")
#     podman_create_cmd+=(-v "$MONITOR_ROOT/nzbs:/nzbs")
#     podman_create_cmd+=(-p "${CONTAINER[HOST_PORT]}:${CONTAINER[CONTAINER_PORT]}")

#     # mkcdirs() {
#     #     declare dir
#     #     for dir in "$@"; do
#     #         if [[ ! -d "$dir" ]]; then 
#     #             if ! mkdir -p "$dir"; then
#     #                 err "Could not create directory $dir, check your permissions"
#     #             fi
#     #         fi
#     #         if ! chcon -t container_file_t -R "$dir"; then
#     #             err "Could not set container_file_t attribute for $dir, check your permissions"
#     #         fi
#     #     done
#     # }

#     # mkcdirs "$HOME/.jriver"


#     brc sh -s <<-EOF
# 		wget -q "http://dist.jriver.com/mediacenter@jriver.com.gpg.key" -O- | apt-key add - &>/dev/null
# 	EOF

#     brc wget "http://dist.jriver.com/latest/mediacenter/mediacenter$MC_MVERSION.list" -O "/etc/apt/sources.list.d/mediacenter$MC_MVERSION.list"

#     brc apt update -y -q0

#     brc add-pkg "mediacenter$MC_MVERSION"

#     brc del-pkg .build-deps
# }


#######################################
# Detects if MC is installed on btrfs and disables CoW
#######################################
disableCoW() {
    debug "Running: ${FUNCNAME[0]}"

    declare dir
    declare mc_user_path="$HOME/.jriver"

    for dir in "$MC_ROOT" "$mc_user_path"; do
        [[ -d $dir ]] || execute mkdir -p "$dir"
        if [[ $(stat -f -c %T "$dir") == "btrfs" ]] &&
        ! lsattr -d "$dir" | cut -f1 -d" " | grep -q C &&
        execute sudo chattr +C "$dir"; then
            echo "Disabled btrfs CoW for $dir directory"
        fi
    done
}


#######################################
# Migrate major versions
#######################################
migrateLibrary() {
    debug "Running: ${FUNCNAME[0]}"

    declare mc_user_path="$HOME/.jriver"
    declare current_config_path="$mc_user_path/Media Center $MC_MVERSION"
    declare previous_config_path="$mc_user_path/Media Center $(( MC_MVERSION - 1 ))"

    if [[ ! -d $current_config_path ]] &&
    [[ -d $previous_config_path ]] &&
    mkdir -p "$current_config_path"; then
        echo "Migrating $previous_config_path to $current_config_path"
        cp -fa "$previous_config_path"/* "$current_config_path"
    fi
}


#######################################
# Completely uninstalls MC, services, and firewall rules
#######################################
uninstall() {
    debug "Running: ${FUNCNAME[0]}"

    declare service unit f i

    echo "Stopping and removing all Media Center services"
    for service in $(compgen -A "function" "service"); do
        service="${service##service_}"
        for i in user system; do
            setServiceVars "$service" "$i"; 
            for unit in "$SERVICE_NAME" "$TIMER_NAME"; do
                if "${IS_ACTIVE[@]}" "$unit" || 
                "${IS_ENABLED[@]}" "$unit"; then
                    "${DISABLE[@]}" "$unit"
                fi
            done
            for f in "$SERVICE_FNAME" "$TIMER_FNAME"; do
                [[ -f $f ]] && 
                execute sudo rm -f "$f"
            done
            "${RELOAD[@]}"
            unset f
        done
        for f in /etc/systemd/system/jriver-*; do
            execute sudo rm -f "$f"
        done
        unset f
    done

    echo "Removing repo files"
    sudo rm -rf \
        "/etc/yum.repos.d/jriver.repo" \
        /etc/apt/sources.list.d/{jriver,mediacenter}*.list # also remove legacy repo files
    if [[ $ID == "suse" ]]; then
        execute sudo zypper --non-interactive removerepo jriver
    fi

    echo "Removing firewall rules"
    if hash firewall-cmd &>/dev/null; then
        execute sudo firewall-cmd --permanent --remove-service=jriver
        execute sudo firewall-cmd --permanent --delete-service=jriver
        execute sudo firewall-cmd --reload
    elif hash ufw &>/dev/null; then
        execute sudo ufw delete allow jriver
        [[ -f "/etc/ufw/applications.d/jriver" ]] &&
            execute sudo rm -f /etc/ufw/applications.d/jriver
    fi

    echo "Uninstalling JRiver Media Center package"
    if "${PKG_REMOVE[@]}" "$MC_PKG"; then
        echo "JRiver Media Center has been completely uninstalled"
        echo "To remove your MC library: rm -rf $HOME/.jriver"
    elif [[ $? -eq 100 ]]; then
        err "JRiver Media Center package '$MC_PKG' is not present and was not uninstalled"
    else
        err "Could not remove Media Center package"
    fi

    if [[ -f $SCRIPTDIR/.uninstall ]]; then
        echo "Removing files from .uninstall log"
        while read -r p; do
            [[ -d $p ]] && execute sudo rm -rf "$p"
        done < "$SCRIPTDIR/.uninstall"
        mv "$SCRIPTDIR/.uninstall" "$SCRIPTDIR/.uninstall.bk"
    fi

    if [[ -e $MC_STUB_TARGET ]]; then
        echo "Removing $MC_STUB_TARGET"
        execute sudo rm -f "$MC_STUB_TARGET"
    fi
    return 0
}


tests() {
    # To test on Mint/16.04: sudo apt install -y spice-vdagent ca-certificates git; export GIT_SSL_NO_VERIFY=1
    : # TODO
}


main() {
    debug "Running: ${FUNCNAME[0]} $*"

    init

    parseInput "$@"

    debug "Debugging on"
    debug "installJRMC version: $SCRIPTVERSION"

    if ((TEST_SWITCH)); then 
        echo "Running tests, all other options are skipped"
        tests
        exit
    fi

    setMCVersion

    if (( UNINSTALL_SWITCH )); then
        if askOk "Do you really want to uninstall JRiver Media Center?"; then
            uninstall
        else
            echo "Uninstall canceled"
        fi
        exit
    fi

    # Install external repos
    case $ID in
        ubuntu)
            if ! grep ^deb /etc/apt/sources.list|grep -q universe; then
                echo "Adding universe repository"
                if ! execute sudo add-apt-repository -y universe; then
                    err "Adding universe repository failed"
                fi
            fi
            ;;
        centos)
            if ! hash dpkg &>/dev/null; then
                echo "Adding EPEL repository"
                installPackage epel-release
            fi
            if ! "${PKG_QUERY[@]}" rpmfusion-free-release &>/dev/null; then
                installPackage --no-install-check \
                "https://download1.rpmfusion.org/free/el/rpmfusion-free-release-$VERSION_ID.noarch.rpm"
            fi
            ;;
        fedora)
            if ! "${PKG_QUERY[@]}" rpmfusion-free-release &>/dev/null; then
                installPackage --no-install-check \
                "https://download1.rpmfusion.org/free/fedora/rpmfusion-free-release-$VERSION_ID.noarch.rpm"
            fi
            ;;
    esac

    if (( REPO_INSTALL_SWITCH )); then
        echo "Installing JRiver Media Center from remote repository"
        if installMCFromRepo; then
            echo "JRiver Media Center installed successfully from remote repository"
            symlinkCerts
            migrateLibrary
            restoreLicense
            openFirewall "jriver-mediacenter" "52100-52200/tcp" "1900/udp"
            disableCoW
        else
            err "JRiver Media Center installation from remote repository failed"
            return 1
        fi
    fi

    if (( BUILD_SWITCH )) && [[ $ID != "arch" ]]; then
        installPackage "wget"
        [[ -d $OUTPUTDIR/SOURCES ]] || execute mkdir -p "$OUTPUTDIR/SOURCES"
        acquireDeb
        if [[ $BUILD_TARGET =~ (centos|fedora|suse) ||
        $REPO_TARGET =~ (centos|fedora|suse) ]]; then
            installPackage "dpkg" "rpm-build"
            [[ -d $OUTPUTDIR/SPECS ]] || execute mkdir -p "$OUTPUTDIR/SPECS"
            buildRPM
        fi
    fi

    if (( LOCAL_INSTALL_SWITCH )); then
        if PKG_INSTALL_LOCAL; then
            echo "JRiver Media Center installed successfully from local package"
        else
            err "JRiver Media Center local package installation failed"
            return 1
        fi
        symlinkCerts
        migrateLibrary
        restoreLicense
        openFirewall "jriver-mediacenter" "52100-52200/tcp" "1900/udp"
        disableCoW
    fi

    if (( CREATEREPO_SWITCH )); then
        if runCreaterepo; then
            echo "Successfully updated repo"
        else
            err "Repo creation failed"
        fi
    fi

    if [[ ${#SERVICES[@]} -gt 0 ]]; then
        declare service
        for service in "${SERVICES[@]}"; do
            if ! "service_$service"; then
                if [[ $? -eq 127 ]]; then
                    err "Service $service does not exist, check service name"
                else
                    err "Failed to create $service service"
                fi
            else
                echo "Started and enabled $service service"
            fi
        done
        unset service
    fi

    # for _container in "${CONTAINERS[@]}"; do
    #     if ! "_container_$_container"; then
    #         if [[ $? -eq 127 ]]; then
    #             err "Container $_container does not exist, check container name"
    #         else
    #             err "Failed to create container: $_container"
    #         fi
    #     fi
    # done
}

# Roughly turn debugging on, reparse in getInput() with getopt
[[ " $* " =~ ( --debug | -d ) ]] && declare -g DEBUG=1

main "$@"