#!/bin/bash
set -e

setup_user() {
    if ! getent group quartzgroup >/dev/null 2>&1; then
        addgroup -g "$GROUP_ID" quartzgroup
    fi

    if ! id -u quartz >/dev/null 2>&1; then
        adduser -D -u "$USER_ID" -G quartzgroup quartz
    fi
}

setup_cron() {
    # NEW_JOB="${BUILD_SCHEDULE} (cd /quartz/content && git pull) >/dev/null && echo  && (cd /quartz/src && npx quartz build) >/dev/null 2>&1"
    NEW_JOB="${BUILD_SCHEDULE} (cd /quartz/content && git restore . && git pull) >/dev/null && (cd /quartz/src && npx quartz build) >/dev/null && echo 'Content Updated.'"
    if [[ "$ENABLE_CRON" == "true" ]]; then
        echo "Cron is enabled..."
        echo "Setting up cron job..."
        echo "$NEW_JOB" >/etc/crontabs/root
        /usr/sbin/crond -f &

    else
        echo "Cron is disabled"
    fi
}

verify_quartz() {
    if [ ! -d "/quartz/src" ]; then
        echo "Cloning Quartz..."
        git clone https://github.com/jackyzha0/quartz.git /quartz/src
        cd /quartz/src
        rm -rf /quartz/src/content
        ln -s /quartz/content /quartz/src
        git config --global --add safe.directory /quartz/src

        echo "Installing Quartz dependencies..."
        npm install >/dev/null

        echo "Building Quartz..."
        npx quartz build >/dev/null
    fi
}

download_content() {
    mkdir -p /quartz/content # Ensure directory exists

    if [ -n "${CONTENT_REPO}" ] && [ -z "$(ls -A /quartz/content 2>/dev/null)" ]; then
        echo "Downloading content..."
        git clone "${CONTENT_REPO}" /quartz/content
    fi
    git config --global --add safe.directory /quartz/content
}

main() {
    echo "Setting up Quartz environment..."
    setup_user
    setup_cron
    verify_quartz
    download_content

    rm -rf /quartz/src/content
    ln -s /quartz/content /quartz/src

    echo "Setting correct permissions..."
    chown -R "${USER_ID}":"${GROUP_ID}" /quartz
    chmod -R 755 /quartz

    echo "NGINX variable substitution..."
    /docker-entrypoint.d/20-envsubst-on-templates.sh >/dev/null

    echo "Building Quartz..."
    su quartz -c "bash -c 'cd /quartz/src && npx quartz build >/dev/null'"

    echo "Starting Nginx..."
    exec nginx -g "daemon off; error_log warn;"
}

main