# syntax=docker/dockerfile:1

# Use official Node.js image as base
# Next.js 16 requires Node 18.17+ or Node 20+
# Using node:20-alpine for better compatibility with Next.js 16 and Turbopack
FROM node:20-alpine AS builder
WORKDIR /app

# Install git early for commit hash
RUN apk add --no-cache git

# Install pnpm with cache mount for better performance
RUN npm install -g pnpm

# Copy package files for dependency installation
COPY package.json pnpm-lock.yaml ./

# Install dependencies with pnpm cache mount for faster builds
RUN --mount=type=cache,id=pnpm,target=/root/.local/share/pnpm \
    --mount=type=cache,id=node_modules,target=/app/node_modules \
    pnpm install --frozen-lockfile

# Copy source code after dependencies are installed (for better caching)
COPY . .

# Get commit hash (fallback to "unknown" if not in git repo)
# This is done after copying source to avoid cache invalidation
RUN git rev-parse --short HEAD > /app/git_commit_sha 2>/dev/null || echo "unknown" > /app/git_commit_sha

ENV NEXT_PUBLIC_API_URL=/api
ENV SERVER_API_URL=https://internal-api.inboxi.ng/api
ENV API_BASE_URL=https://internal-api.inboxi.ng
ENV API_HOSTNAME=internal-api.inboxi.ng

# Build the Next.js application with increased memory for Turbopack
# Next.js 16 uses Turbopack by default which may need more memory
RUN --mount=type=cache,id=nextjs,target=/app/.next/cache \
    echo "Building with GIT_COMMIT_SHA=$(cat /app/git_commit_sha)" && \
    NODE_OPTIONS='--max_old_space_size=4096' NEXT_TELEMETRY_DISABLED=1 pnpm run build

# ---- Production Stage ----
# Use Node 20 for production as well to match builder
FROM node:20-alpine AS runner

# 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/pnpm-lock.yaml ./
COPY --from=builder /app/.next ./.next
COPY --from=builder /app/node_modules ./node_modules
COPY --from=builder /app/public ./public

# Copy commit hash file from builder stage
COPY --from=builder /app/git_commit_sha /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/api
ENV API_BASE_URL=https://internal-api.inboxi.ng
ENV API_HOSTNAME=internal-api.inboxi.ng

# Note: GIT_COMMIT_SHA will be read at runtime, not set as ENV
# The file is available at /app/git_commit_sha if needed

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