# syntax=docker/dockerfile:1
############################
# Base
############################
FROM node:20-alpine AS base
WORKDIR /app
ENV NEXT_TELEMETRY_DISABLED=1
RUN apk add --no-cache libc6-compat

############################
# Dependencies (dev) — ติดตั้ง deps + devDeps เพื่อใช้ build
############################
FROM base AS deps
ENV NODE_ENV=development
RUN corepack enable
COPY . .
RUN set -eux; \
    if [ -f pnpm-lock.yaml ]; then pnpm install --frozen-lockfile; \
    elif [ -f yarn.lock ]; then yarn install --frozen-lockfile; \
    elif [ -f package-lock.json ]; then npm ci; \
    else npm install; \
    fi

############################
# Build
############################
FROM base AS builder
ENV NODE_ENV=development
RUN corepack enable
COPY --from=deps /app/node_modules ./node_modules
COPY . .
# ให้ชัวร์: ถ้ามี next.config.ts แต่ยังไม่มี typescript → ติดตั้งเพิ่มแบบ dev
RUN set -eux; \
    if [ -f next.config.ts ] && ! node -e "require.resolve('typescript')" 2>/dev/null; then \
      npm i -D typescript; \
    fi; \
    if [ -f pnpm-lock.yaml ]; then pnpm run build; \
    elif [ -f yarn.lock ]; then yarn build; \
    else npm run build; \
    fi

############################
# Dependencies (prod only) — prune devDeps ออก
############################
FROM base AS prod-deps
ENV NODE_ENV=production
RUN corepack enable
COPY . .
RUN set -eux; \
    if [ -f pnpm-lock.yaml ]; then pnpm install --frozen-lockfile --prod --no-optional; \
    elif [ -f yarn.lock ]; then (yarn workspaces focus --all --production || yarn install --frozen-lockfile --production=true); \
    elif [ -f package-lock.json ]; then npm ci --omit=dev; \
    else npm install --omit=dev; \
    fi

############################
# Runner
############################
FROM node:20-alpine AS runner
WORKDIR /app
ENV NODE_ENV=production
ENV HOSTNAME=0.0.0.0
ENV PORT=3000
ENV NEXT_TELEMETRY_DISABLED=1

RUN apk add --no-cache libc6-compat && \
    addgroup -g 1001 -S nodejs && \
    adduser -S nextjs -u 1001 -G nodejs

# เอาเฉพาะสิ่งที่ต้องรันจริง
COPY --from=builder   /app/public   ./public
COPY --from=builder   /app/.next    ./.next
COPY --from=builder   /app/package.json ./package.json
COPY --from=prod-deps /app/node_modules ./node_modules

USER nextjs
EXPOSE 3000
CMD ["npm", "run", "start"]