# Stage 1: Install dependencies (dev deps needed for esbuild)
FROM node:20-alpine AS deps
RUN corepack enable && corepack prepare pnpm@latest --activate
WORKDIR /app
COPY package.json pnpm-lock.yaml ./
RUN pnpm install --frozen-lockfile --prod=false

# Stage 2: Build the worker bundle
FROM node:20-alpine AS builder
RUN corepack enable && corepack prepare pnpm@latest --activate
WORKDIR /app
COPY --from=deps /app/node_modules ./node_modules
COPY . .
ENV SKIP_ENV_VALIDATION=1
RUN pnpm build:worker

# Stage 3: Production runner (prod deps only)
FROM node:20-alpine AS runner
RUN corepack enable && corepack prepare pnpm@latest --activate
WORKDIR /app
COPY package.json pnpm-lock.yaml ./
RUN pnpm install --frozen-lockfile --prod
RUN addgroup --system --gid 1001 nodejs && adduser --system --uid 1001 worker
COPY --from=builder --chown=worker:nodejs /app/dist/worker.js ./worker.js
USER worker
CMD ["node", "worker.js"]