# syntax=docker/dockerfile:1.7
# Ultra-optimized Dockerfile for Railway - production, minimal dependencies

# Stage 1: Builder
FROM node:20-alpine AS builder
WORKDIR /app

COPY tsconfig.json ./

RUN --mount=type=cache,target=/root/.npm \
    echo '{}' > package.json && \
    npm install --no-save typescript@^5.8.3 @types/node@^22.15.30 @types/express@^5.0.3 \
        @modelcontextprotocol/sdk@^1.12.1 dotenv@^16.5.0 express@^5.1.0 axios@^1.10.0 \
        n8n-workflow@^1.96.0 uuid@^11.0.5 @types/uuid@^10.0.0

COPY src ./src
RUN npx tsc

# Stage 2: Runtime
FROM node:20-alpine AS runtime
WORKDIR /app

RUN apk add --no-cache curl && \
    rm -rf /var/cache/apk/*

COPY package.runtime.json package.json

RUN --mount=type=cache,target=/root/.npm \
    npm install --production --no-audit --no-fund

COPY --from=builder /app/dist ./dist

COPY data/nodes.db ./data/
COPY src/database/schema-optimized.sql ./src/database/
COPY .env.example ./

COPY docker/docker-entrypoint.sh /usr/local/bin/
RUN chmod +x /usr/local/bin/docker-entrypoint.sh

LABEL org.opencontainers.image.source="https://github.com/czlonkowski/n8n-mcp"
LABEL org.opencontainers.image.description="n8n MCP Server - Runtime Only"
LABEL org.opencontainers.image.licenses="MIT"
LABEL org.opencontainers.image.title="n8n-mcp"

RUN addgroup -g 1001 -S nodejs && \
    adduser -S nodejs -u 1001 && \
    chown -R nodejs:nodejs /app

USER nodejs

ENV IS_DOCKER=true

# --- KEY Railway detail: EXPOSE 3000, but server MUST respect $PORT env var!
EXPOSE 3000

# Healthcheck (still port 3000 as default, but Railway sets $PORT!)
HEALTHCHECK --interval=30s --timeout=10s --start-period=5s --retries=3 \
  CMD curl -f http://127.0.0.1:${PORT:-3000}/health || exit 1

ENTRYPOINT ["/usr/local/bin/docker-entrypoint.sh"]
# --- CMD: always run HTTP server (Railway expects an HTTP app)
CMD ["node", "dist/mcp/index.js", "--http"]

# Optionally, if your app doesn't already do this, make sure that dist/mcp/index.js
# uses process.env.PORT for the HTTP server:
#   const port = process.env.PORT || 3000;
#   app.listen(port, ...)