# ==========================================
# STAGE 1: Build Frontend & Server Bundle
# ==========================================
FROM node:22-alpine AS builder

WORKDIR /app

# Instalar dependencias completas para build
COPY package*.json ./
RUN npm ci

# Copiar código fuente
COPY . .

# Compilar frontend (Vite) y backend (esbuild)
RUN npm run build

# ==========================================
# STAGE 2: Imagen Ligera de Producción
# ==========================================
FROM node:22-alpine AS runner

WORKDIR /app

ENV NODE_ENV=production
ENV PORT=3000

# Instalar únicamente dependencias de producción
COPY package*.json ./
RUN npm ci --omit=dev && npm cache clean --force

# Copiar artefactos compilados del builder
COPY --from=builder /app/dist ./dist
COPY --from=builder /app/dist-server ./dist-server

# Exponer puerto de la aplicación
EXPOSE 3000

# Health check nativo de Docker
HEALTHCHECK --interval=20s --timeout=5s --start-period=10s --retries=3 \
  CMD wget --no-verbose --tries=1 --spider http://127.0.0.1:3000/api/health || exit 1

# Iniciar servidor Express optimizado
CMD ["node", "dist-server/index.js"]