FROM eclipse-temurin:21-jdk-alpine AS builder

WORKDIR /app

# Install dependencies
RUN apk add --no-cache curl unzip

# Copy project files
COPY gradle.properties settings.gradle build.gradle ./
COPY src ./src

# Download and setup Gradle
RUN curl -L -o gradle.zip https://services.gradle.org/distributions/gradle-8.10-bin.zip && \
    unzip -q gradle.zip && \
    rm gradle.zip && \
    mv gradle-8.10 gradle

# Create empty gradle home to avoid permission issues
RUN mkdir -p /root/.gradle

# Build the mod
RUN ./gradle/bin/gradle build --no-daemon -x test || (cat /app/build/reports/problems/problems-report.html 2>/dev/null && exit 1)

# Output stage - copy artifacts
FROM alpine:latest
WORKDIR /output
COPY --from=builder /app/build/libs/*.jar ./
CMD ["ls", "-la", "/output/"]