# Use official Node.js image as base
FROM node:20-alpine as builder
WORKDIR /app
COPY package.json package-lock.json ./

RUN npm install --force

COPY . .

# Install git and get commit hash
RUN apk add --no-cache git && \
    if [ -d .git ]; then \
      git rev-parse --short HEAD > /app/git_commit_sha; \
    else \
      echo "unknown" > /app/git_commit_sha; \
    fi

ENV NEXT_PUBLIC_API_URL=/api

# Build the Next.js application
# The environment variable will be available during build if needed
# ENV GIT_COMMIT_SHA=$(cat /app/git_commit_sha)
RUN echo "Building with GIT_COMMIT_SHA=$(cat /app/git_commit_sha)" && npm run build

# ---- Production Stage ----
FROM node:20-alpine

# Set working directory inside the container
WORKDIR /app

RUN mkdir -p /app/public

# Copy only necessary files from builder
COPY --from=builder /app/package.json /app/package-lock.json ./
COPY --from=builder /app/.next ./.next
COPY --from=builder /app/node_modules ./node_modules
COPY --from=builder /app/public ./public
COPY --from=builder /app/next.config.mjs ./next.config.mjs

# Copy commit hash file from builder stage
COPY --from=builder /app/git_commit_sha /app/git_commit_sha
RUN cat /app/git_commit_sha

EXPOSE 3000

ENV NODE_ENV=production
ENV NEXT_PUBLIC_API_URL=/api
ENV SERVER_API_URL=https://internal-api.inboxi.ng

# Set GIT_COMMIT_SHA environment variable in the final image by reading the file
ENV GIT_COMMIT_SHA="$(cat /app/git_commit_sha)"


# Start Next.js server
CMD ["npm", "start"]