# Multi-stage production Dockerfile for LCC Table Tennis Booking
FROM node:22-slim AS base

# Install dependencies only when needed
FROM base AS deps
RUN apt-get update && apt-get install -y curl && rm -rf /var/lib/apt/lists/*
WORKDIR /app

# Install dependencies based on the preferred package manager
COPY package.json package-lock.json* ./
RUN \
  if [ -f package-lock.json ]; then npm ci --ignore-scripts; \
  else echo "Lockfile not found." && exit 1; \
  fi

# Rebuild the source code only when needed
FROM base AS builder
RUN apt-get update && apt-get install -y python3 make g++ && rm -rf /var/lib/apt/lists/*
WORKDIR /app
COPY --from=deps /app/node_modules ./node_modules
COPY . .

# Rebuild better-sqlite3 for Alpine Linux
RUN npm rebuild better-sqlite3

# Build the application
RUN npm run build

# Production image, copy all the files and run next
FROM base AS runner
RUN apt-get update && apt-get install -y curl && rm -rf /var/lib/apt/lists/*
WORKDIR /app

ENV NODE_ENV=production
ENV NEXT_TELEMETRY_DISABLED=1

# Create system user and group
RUN addgroup --system --gid 1001 nodejs
RUN adduser --system --uid 1001 nextjs

# Copy necessary files from builder stage
COPY --from=builder /app/.next/standalone ./
COPY --from=builder --chown=nextjs:nodejs /app/.next/static ./.next/static

# Create public directory if it doesn't exist
RUN mkdir -p public

# Create directories for data and backups
RUN mkdir -p /app/data /app/backups /app/logs && \
    chown -R nextjs:nodejs /app/data /app/backups /app/logs

# Create startup script
COPY --chown=nextjs:nodejs <<EOF /app/start.sh
#!/bin/sh
set -e
echo "🚀 Starting TT Booking Production..."

# Ensure database directory has proper permissions
if [ -d "/app/data" ]; then
    echo "📁 Setting database permissions..."
    chmod -R 755 /app/data /app/backups /app/logs 2>/dev/null || true
    if [ -f "/app/data/sqlite.db" ]; then
        chmod 644 /app/data/sqlite.db 2>/dev/null || true
    fi
fi

echo "🌟 Starting server..."
exec node server.js
EOF

RUN chmod +x /app/start.sh
EXPOSE 3000

ENV PORT=3000
ENV HOSTNAME="0.0.0.0"

# Health check
HEALTHCHECK --interval=30s --timeout=10s --start-period=60s --retries=3 \
  CMD curl -f http://localhost:3000/api/health || exit 1

CMD ["/app/start.sh"]