# Stage 1: Build frontend
FROM --platform=$BUILDPLATFORM node:18-alpine AS frontend-builder
WORKDIR /app
COPY package*.json ./
RUN npm ci --only=production
COPY . .
RUN npm run build

# Stage 2: Build backend
FROM --platform=$BUILDPLATFORM node:18-alpine AS backend-builder
WORKDIR /app
COPY package*.json ./
RUN npm ci --only=production
COPY src/backend/ ./src/backend/

# Stage 3: Build bcrypt for the target platform
FROM --platform=$TARGETPLATFORM node:18-alpine AS bcrypt-builder
WORKDIR /app
COPY package*.json ./
RUN apk add --no-cache python3 make g++ \
    && npm ci --only=production bcrypt \
    && rm -rf /root/.npm

# Stage 4: Final production image
FROM mongo:4.4-focal

# First install required packages for adding repositories
RUN apt-get update && \
    apt-get install -y --no-install-recommends \
        curl \
        gnupg \
    && rm -rf /var/lib/apt/lists/*

# Now add MongoDB repository key and Node.js repository
RUN set -ex; \
    # Add MongoDB repository key
    curl -fsSL https://pgp.mongodb.com/server-4.4.asc | gpg --dearmor -o /usr/share/keyrings/mongodb-archive-keyring.gpg; \
    echo "deb [signed-by=/usr/share/keyrings/mongodb-archive-keyring.gpg] http://repo.mongodb.org/apt/ubuntu focal/mongodb-org/4.4 multiverse" | tee /etc/apt/sources.list.d/mongodb-org-4.4.list; \
    # Add Node.js repository
    curl -fsSL https://deb.nodesource.com/setup_18.x | bash -

# Install remaining packages
RUN apt-get update && \
    apt-get install -y --no-install-recommends \
        nginx \
        nodejs \
    && apt-get clean \
    && rm -rf /var/lib/apt/lists/* \
    && rm -rf /var/cache/apt/*

# Configure nginx and copy frontend
COPY docker/nginx.conf /etc/nginx/nginx.conf
COPY --from=frontend-builder /app/dist /usr/share/nginx/html

# Setup backend with pre-built bcrypt
WORKDIR /app
COPY package*.json ./
RUN npm ci --only=production --ignore-scripts
COPY --from=bcrypt-builder /app/node_modules/bcrypt /app/node_modules/bcrypt
COPY --from=backend-builder /app/src/backend ./src/backend

# Create necessary directories and set permissions
RUN mkdir -p /data/db /var/log/{nginx,mongodb} /var/lib/nginx \
    && chown -R mongodb:mongodb /data/db /var/log/mongodb \
    && chown -R www-data:www-data /var/log/nginx /var/lib/nginx \
    && rm -rf /root/.npm /tmp/*

# Set environment variables
ENV MONGO_URL=mongodb://localhost:27017/termix \
    MONGODB_DATA_DIR=/data/db \
    MONGODB_LOG_DIR=/var/log/mongodb \
    NODE_ENV=production

# Create volume for MongoDB data
VOLUME ["/data/db"]

# Expose ports
EXPOSE 8080 8081 8082 27017

# Copy and set entrypoint
COPY docker/entrypoint.sh /entrypoint.sh
RUN chmod +x /entrypoint.sh
CMD ["/entrypoint.sh"]