# Use Node.js 18 LTS as base image
FROM node:18-alpine

# Set working directory
WORKDIR /app

# Copy package files
COPY package*.json ./

# Install all dependencies (including dev dependencies for build)
RUN npm ci

# Copy source code
COPY . .

# Copy Google Cloud key file (if it exists)
COPY google-cloud-key.json* ./

# Build the TypeScript application
RUN npm run build

# Copy EJS templates to dist
RUN npm run copy-files

# Remove dev dependencies to reduce image size
RUN npm prune --production

# Create uploads directory
RUN mkdir -p uploads

# Expose port
EXPOSE 3000

# Health check
HEALTHCHECK --interval=30s --timeout=3s --start-period=5s --retries=3 \
  CMD node -e "require('http').get('http://localhost:3000/health', (res) => { process.exit(res.statusCode === 200 ? 0 : 1) })" || exit 1

# Start the application
CMD ["npm", "start"]