FROM node:20-alpine

WORKDIR /app

# ffmpeg: audio conversion for AWS Transcribe (WebM → PCM)
RUN apk add --no-cache ffmpeg

COPY package.json ./
RUN npm install --omit=dev

COPY . .

RUN mkdir -p /app/data/logs

EXPOSE 3000

HEALTHCHECK --interval=30s --timeout=5s --start-period=20s \
  CMD wget --no-verbose --tries=1 --spider http://localhost:3000/api/health || exit 1

CMD ["node", "server.js"]

