# Step 1: Set the base image to Node.js
FROM node:18-alpine AS build

# Step 2: Set the working directory inside the container
WORKDIR /app

# Step 3: Copy the package.json and package-lock.json (or yarn.lock) for dependency installation
COPY package.json package-lock.json ./

# Step 4: Install dependencies
RUN npm install

# Step 5: Copy the rest of the project files into the container
COPY . .

# Step 6: Build the Next.js app
RUN npm run build

# Step 7: Create the final image (production stage)
FROM node:18-alpine

# Set the working directory inside the container for production
WORKDIR /app

# Copy the necessary files from the build stage
COPY --from=build /app ./

# Step 8: Install production dependencies only (optional)
RUN npm install --production

# Step 9: Expose the default Next.js port
EXPOSE 3000

# Step 10: Set the command to run the Next.js app
CMD ["npm", "start"]