VERSION='<version>'
THIS_JAVA="java-${VERSION}-jdk"
NAME="JDK ${VERSION}"

all_off="$(tput sgr0)"
bold="${all_off}$(tput bold)"
blue="${bold}$(tput setaf 4)"
yellow="${bold}$(tput setaf 3)"

note() {
    printf "${blue}::${yellow} archlinux-java:${bold} $1${all_off}\n"
}

note2() {
    printf "${blue}==>${yellow} NOTE:${bold} $1${all_off}\n"
}

post_install() {
    default=$(archlinux-java get)
    case ${default} in
        "")
            archlinux-java set ${THIS_JAVA}
            note "${NAME} ('${THIS_JAVA}') set as default Java environment."
            ;;
        ${THIS_JAVA})
            note "${NAME} ('${THIS_JAVA}') set as default Java environment."
            ;;
        *)
            note "Default Java environment already set to '${default}'.
                   To use ${NAME} ('${THIS_JAVA}'), run:
                     # archlinux-java set ${THIS_JAVA}
                   For status, use:
                     $ archlinux-java status"
            ;;
    esac

    if [[ ! -f /etc/ssl/certs/java/cacerts ]]; then
        update-ca-trust
    fi

    note2 "Since Oracle Java 9, some Qt 5 applications (such as the reader apps Zeal and
          GoldenDict) will crash due to the existance of the Java NPAPI plugin symlink
          (/usr/lib/mozilla/plugins/libnpjp2-jdk${VERSION}.so).
          
          See: 
          - https://github.com/zealdocs/zeal/issues/802
          - https://bbs.archlinux.org/viewtopic.php?id=231222"
}

post_upgrade() {
    post_install
}

pre_remove() {
    default=$(archlinux-java get)
    if [[ ${default} = ${THIS_JAVA} ]]; then
        archlinux-java unset
    fi
}

post_remove() {
    default=$(archlinux-java get) # reassign
    if [[ ${default} ]]; then
        note "Default Java environment is '${default}'."
    else
        archlinux-java fix
        default=$(archlinux-java get) # re-reassign
        if [[ ${default} ]]; then
            note "Default Java environment left as '${default}'."
        else
            note "Java environment unset."
        fi
    fi
}