# Multi-stage build for Gallus CMS Backend

# Stage 1: Builder
FROM node:20-alpine AS builder

WORKDIR /app

# Install build dependencies for native modules (better-sqlite3)
RUN apk add --no-cache python3 make g++

# Install dependencies
COPY package*.json ./
# Use npm ci when lockfile exists, fallback to npm install for local/dev
RUN npm ci || npm install

# Copy source
COPY . .

# Build TypeScript
RUN npm run build

# Stage 2: Production
FROM node:20-alpine

WORKDIR /app

# Install runtime dependencies (git for simple-git, sqlite3 CLI tool)
RUN apk add --no-cache git sqlite

# Copy production dependencies from builder (already compiled native modules)
COPY --from=builder /app/node_modules ./node_modules

# Copy built files from builder
COPY --from=builder /app/dist ./dist
COPY --from=builder /app/src/db/migrations ./dist/db/migrations

# Create directories
RUN mkdir -p /app/workspace /app/data

# Ensure proper permissions
RUN chown -R node:node /app

# Switch to non-root user
USER node

# Expose port
EXPOSE 8080

# Set environment
ENV NODE_ENV=production
ENV PORT=8080
ENV DATABASE_PATH=/app/data/gallus_cms.db

# Health check
HEALTHCHECK --interval=30s --timeout=3s --start-period=5s --retries=3 \
  CMD node -e "require('http').get('http://localhost:8080/health', (r) => {process.exit(r.statusCode === 200 ? 0 : 1)})"

# Run DB migrations if present, then start application
CMD ["/bin/sh", "-lc", "[ -f dist/migrate.js ] && node dist/migrate.js || true; node dist/index.js"]