#!/bin/sh

: ${GIGI_CONF_DIR:=/etc/wpia/gigi}

[ -r "$GIGI_CONF_DIR/launcher.conf" ] && . "$GIGI_CONF_DIR/launcher.conf"

# assign default values
: \
    ${JDBC_DRIVER:=/usr/share/java/postgresql-jdbc4.jar} \
    ${DNSJAVA:=/usr/share/java/dnsjava.jar} \
    ${GIGI_EXEC:=/usr/share/java/gigi.jar} \
    ${GIGI_DATA_DIR:=/var/lib/wpia-gigi}

die() {
    if [ $# -ge 1 ]; then
        printf >&2 'Could not %s.\n' "$1"
    fi
    exit 1
}

cd "$GIGI_DATA_DIR" || die 'move to data directory'

runGigiClass() {
    class=$1
    shift
    if [ $# -ge 1 ]; then
        java_opts="$1"
        shift
    fi
    exec java $java_opts -cp "$JDBC_DRIVER:$DNSJAVA:$GIGI_EXEC" club.wpia.gigi.$class "$@"
}

command="$1"
shift
case "$command" in
    start) runGigiClass Launcher ;;
    debug) runGigiClass Launcher "-Xdebug -Xrunjdwp:transport=dt_socket,server=y,suspend=n,address=8000" ;;
    start-daemon)
        exec 3</etc/gigi/conf.tar || die 'open config'
        exec 4>>/var/log/wpia-gigi.log || die 'open log'
        runGigiClass Launcher <&3 >&4 2>&1 &
        echo $! > /var/run/wpia-gigi.pid
        ;;
    signer) runGigiClass util.SimpleSigner ;;
    reset-database) runGigiClass util.DatabaseManager ;;
    fetch-alexa) runGigiClass util.HighFinancialValueFetcher "" "$@" ;;
    fetch-locales) runGigiClass util.FetchLocales "" "$@" ;;
    signer-conf)
        mkdir -p "$GIGI_DATA_DIR/config" || die 'create config directory'
        cd "$GIGI_DATA_DIR/config" || die 'move to config directory'
        tar x gigi.properties
        ;;
    *)
        cat >&2 << 'EOF'
Usage: gigi COMMAND [ARGUMENT...]

Commands:
    start - start gigi
    debug - start gigi in debug mode (on port 8000, with config from stdin)
    start-daemon - start gigi in background (using config from /etc/gig/config.tar)
    signer - start the simple signer
    signer-conf - extract config for simple signer (and reset-database) from the tar from stdin
    reset-database - reset the database
    fetch-alexa - fetch domains with high financial value from Alexa top 1 million list; required argument: target file, optional argument: number of domains to save
    fetch-locales - fetch the localisation; optional argument: URL pattern to indicate download location
EOF
esac