# Backend ultra-lite Dockerfile - Java Spring Boot with minimal dependencies and build stage
# ========================================
# STAGE 1: Build stage - Gradle
# ========================================
FROM gradle:8.14-jdk21@sha256:051d9a116793bdc5175a3f97a545718b750489eee85a7da20913c8a53f722a72 AS build

COPY build.gradle .
COPY settings.gradle .
COPY gradlew .
COPY gradle gradle/
COPY app/core/build.gradle core/.
COPY app/common/build.gradle common/.
COPY app/proprietary/build.gradle proprietary/.
RUN ./gradlew build -x spotlessApply -x spotlessCheck -x test -x sonarqube || return 0

# Set the working directory
WORKDIR /app

# Copy the entire project to the working directory
COPY . .

# Build the application with DISABLE_ADDITIONAL_FEATURES=true
RUN DISABLE_ADDITIONAL_FEATURES=true \
    STIRLING_PDF_DESKTOP_UI=false \
    ./gradlew clean build -x spotlessApply -x spotlessCheck -x test -x sonarqube

# ========================================
# STAGE 2: Runtime stage - Alpine minimal
# ========================================
FROM alpine:3.23.2@sha256:865b95f46d98cf867a156fe4a135ad3fe50d2056aa3f25ed31662dff6da4eb62

ARG VERSION_TAG

# Set Environment Variables
ENV HOME=/home/stirlingpdfuser \
    VERSION_TAG=$VERSION_TAG \
    JAVA_BASE_OPTS="-XX:+ExitOnOutOfMemoryError -XX:+HeapDumpOnOutOfMemoryError -XX:HeapDumpPath=/configs/heap_dumps -XX:+UnlockExperimentalVMOptions -XX:MaxRAMPercentage=75 -XX:InitiatingHeapOccupancyPercent=20 -XX:+G1PeriodicGCInvokesConcurrent -XX:G1PeriodicGCInterval=10000 -XX:+UseStringDeduplication -XX:G1PeriodicGCSystemLoadThreshold=70" \
    JAVA_CUSTOM_OPTS="" \
    PUID=1000 \
    PGID=1000 \
    UMASK=022 \
    STIRLING_TEMPFILES_DIRECTORY=/tmp/stirling-pdf \
    TMPDIR=/tmp/stirling-pdf \
    TEMP=/tmp/stirling-pdf \
    TMP=/tmp/stirling-pdf

# Copy necessary files
COPY scripts/init-without-ocr.sh /scripts/init-without-ocr.sh
COPY scripts/installFonts.sh /scripts/installFonts.sh
COPY --from=build --chown=stirlingpdfuser:stirlingpdfgroup /app/app/core/build/libs/*.jar /app.jar
COPY --from=build --chown=stirlingpdfuser:stirlingpdfgroup /app/build/libs/restart-helper.jar /restart-helper.jar

# Set up necessary directories and permissions
RUN apk add --no-cache bash \
    && ln -sf /bin/bash /bin/sh \
    && printf '%s\n' \
      'https://dl-cdn.alpinelinux.org/alpine/edge/main' \
      'https://dl-cdn.alpinelinux.org/alpine/edge/community' \
      'https://dl-cdn.alpinelinux.org/alpine/edge/testing' \
      > /etc/apk/repositories && \
    apk upgrade --no-cache -a && \
    apk add --no-cache \
        ca-certificates \
        tzdata \
        tini \
        bash \
        curl \
        shadow \
        su-exec \
        openjdk21-jre \
        ghostscript \
        fontforge && \
    # User permissions
    mkdir -p /configs /configs/heap_dumps /logs /customFiles /usr/share/fonts/opentype/noto /tmp/stirling-pdf /pipeline/watchedFolders /pipeline/finishedFolders && \
    chmod +x /scripts/*.sh && \
    addgroup -S stirlingpdfgroup && adduser -S stirlingpdfuser -G stirlingpdfgroup && \
    chown -R stirlingpdfuser:stirlingpdfgroup $HOME /scripts /pipeline /configs /customFiles /pipeline /tmp/stirling-pdf && \
    chown stirlingpdfuser:stirlingpdfgroup /app.jar /restart-helper.jar && \
    ln -sf /bin/busybox /bin/sh

# Set environment variables
ENV ENDPOINTS_GROUPS_TO_REMOVE=CLI

EXPOSE 8080/tcp

# Run the application
ENTRYPOINT ["tini", "--", "/scripts/init-without-ocr.sh"]
CMD []