# =============================================================================
# Queue Worker Service Dockerfile
# =============================================================================
# Multi-stage build for production-ready queue worker

# -----------------------------------------------------------------------------
# Stage 1: Dependencies
# -----------------------------------------------------------------------------
FROM node:22-alpine AS deps

WORKDIR /app

# Install pnpm
RUN corepack enable && corepack prepare pnpm@latest --activate

# Copy package files
COPY package.json pnpm-lock.yaml ./

# Install dependencies
RUN pnpm install --frozen-lockfile --ignore-scripts

# -----------------------------------------------------------------------------
# Stage 2: Builder
# -----------------------------------------------------------------------------
FROM node:22-alpine AS builder

WORKDIR /app

# Install pnpm
RUN corepack enable && corepack prepare pnpm@latest --activate

# Copy dependencies from deps stage
COPY --from=deps /app/node_modules ./node_modules

# Copy source code
COPY . .

# Build the application
RUN pnpm run build

# -----------------------------------------------------------------------------
# Stage 3: Production
# -----------------------------------------------------------------------------
FROM node:22-alpine AS production

WORKDIR /app

# Install curl for health checks
RUN apk add --no-cache curl

# Create non-root user
RUN addgroup -g 1001 -S nodejs && \
    adduser -S nestjs -u 1001 -G nodejs

# Copy built application
COPY --from=builder --chown=nestjs:nodejs /app/dist ./dist
COPY --from=deps --chown=nestjs:nodejs /app/node_modules ./node_modules
COPY --from=builder --chown=nestjs:nodejs /app/package.json ./package.json

# Switch to non-root user
USER nestjs

# Expose ports
EXPOSE 3080 3081

# Health check
HEALTHCHECK --interval=30s --timeout=10s --start-period=30s --retries=3 \
    CMD curl -f http://localhost:3080/health || exit 1

# Start the application
CMD ["node", "dist/main.js"]