FROM node:20-alpine AS base
RUN corepack enable && corepack prepare pnpm@10.28.2 --activate
WORKDIR /app

# ── deps: install all node_modules ───────────────────────────────────────────
FROM base AS deps
COPY pnpm-lock.yaml pnpm-workspace.yaml package.json ./
COPY apps/api/package.json apps/api/
RUN pnpm install --frozen-lockfile --prod=false

# ── build: compile TypeScript ────────────────────────────────────────────────
FROM base AS build
COPY --from=deps /app/node_modules ./node_modules
COPY --from=deps /app/apps/api/node_modules ./apps/api/node_modules
COPY . .
RUN cd apps/api && pnpm build

# ── prod-deps: production-only dependencies ─────────────────────────────────
FROM base AS prod-deps
RUN apk add --no-cache python3 make g++
COPY pnpm-lock.yaml pnpm-workspace.yaml package.json ./
COPY apps/api/package.json apps/api/
RUN pnpm install --frozen-lockfile --prod \
  && BIGINT_DIR="$(find /app -path '*/node_modules/bigint-buffer' -type d 2>/dev/null | head -1)" \
  && if [ -n "$BIGINT_DIR" ]; then (cd "$BIGINT_DIR" && npm run rebuild); fi

# ── runtime: minimal image ───────────────────────────────────────────────────
FROM node:20-alpine AS runtime
WORKDIR /app/apps/api
COPY --from=prod-deps /app/node_modules /app/node_modules
COPY --from=prod-deps /app/apps/api/node_modules ./node_modules
COPY --from=build /app/apps/api/dist ./dist
COPY --from=build /app/apps/api/swagger.json ./swagger.json
COPY --from=build /app/apps/api/package.json ./package.json

EXPOSE 3001
CMD ["node", "dist/index.js"]