FROM node:20-alpine AS base

ENV TZ=Asia/Tehran

RUN apk add --no-cache tzdata
RUN corepack enable

WORKDIR /app


# -----------------------
# Install ALL dependencies (dev + prod) for the build
# -----------------------
FROM base AS deps

COPY package.json yarn.lock ./

# NODE_ENV must not be "production" here — otherwise devDependencies
# (e.g. @nestjs/cli) are skipped and "nest build" fails.
ENV NODE_ENV=development
RUN yarn install --frozen-lockfile


# -----------------------
# Builder stage
# -----------------------
FROM base AS builder

WORKDIR /app

ENV NODE_ENV=development

COPY package.json yarn.lock nest-cli.json tsconfig.json tsconfig.build.json ./
COPY --from=deps /app/node_modules ./node_modules
COPY src ./src

RUN yarn build \
  && mkdir -p dist/config \
  && cp src/config/swagger.json dist/config/


# -----------------------
# Production dependencies ONLY
# -----------------------
FROM base AS prod-deps

COPY package.json yarn.lock ./

ENV NODE_ENV=production
RUN yarn install --frozen-lockfile --production=true


# -----------------------
# Runner
# -----------------------
FROM base AS runner

RUN addgroup -S appgroup && adduser -S appuser -G appgroup

WORKDIR /app

ENV NODE_ENV=production

COPY --from=prod-deps --chown=appuser:appgroup /app/node_modules ./node_modules
COPY --from=builder --chown=appuser:appgroup /app/dist ./dist
COPY --from=builder --chown=appuser:appgroup /app/package.json ./package.json

USER appuser

EXPOSE 3000

CMD ["node", "dist/main"]