# Development Dockerfile with Bun hot reload
FROM node:22-alpine

# Install Bun
RUN npm install -g bun

WORKDIR /app

# Layer caching: Copy dependencies first
COPY package.json bun.lock ./

# Install dependencies
RUN bun install

# Copy source code
COPY . .

EXPOSE 3000

# Development server with hot reload
CMD ["bun", "run", "dev"]