# Stage 1: Build Node.js application
FROM node:18-alpine AS builder

WORKDIR /app

# Copy package.json and package-lock.json (if available)
COPY package.json ./
# COPY package-lock.json ./

# Install dependencies
RUN npm install --production

# Copy the rest of the application files (API code)
COPY data-api.js ./
# Add any other necessary files for the API here

# Stage 2: Setup Nginx and Supervisor
FROM nginx:alpine

# Install Supervisor, Node.js runtime, and apache2-utils (for htpasswd)
RUN apk add --no-cache supervisor nodejs npm apache2-utils

# Remove default Nginx configuration
RUN rm /etc/nginx/conf.d/default.conf

# Declare build arguments for credentials
ARG AUTH_USERNAME
ARG AUTH_PASSWORD

# Copy custom Nginx configuration
COPY nginx.conf /etc/nginx/nginx.conf

# Copy Basic Auth config (nginx-auth.conf)
COPY nginx-auth.conf /etc/nginx/nginx-auth.conf

# Generate .htpasswd file using build arguments
RUN htpasswd -cb /etc/nginx/.htpasswd ${AUTH_USERNAME} ${AUTH_PASSWORD} \
    && chown nginx:nginx /etc/nginx/.htpasswd \
    && chmod 600 /etc/nginx/.htpasswd

# Copy application files
COPY --from=builder /app/data-api.js \
           /usr/share/nginx/html/data-api.js \
           /usr/share/nginx/html/auth-middleware.js \
           /usr/share/nginx/html/backup-s3.js \
           /usr/share/nginx/html/package.json \
           /usr/share/nginx/html/package-lock.json \
           /usr/share/nginx/html/node_modules \
           /usr/share/nginx/html/.git \
           /usr/share/nginx/html/.github \
           /usr/share/nginx/html/.vscode \
           /usr/share/nginx/html/README.md 

# Expose port 80 for HTTP traffic
EXPOSE 80

# Command to start Nginx in the foreground
# This ensures the container keeps running
CMD ["nginx", "-g", "daemon off;"]