Dockerfile.backend

# Build stage
FROM node:20-alpine AS builder

# Install build dependencies
RUN apk add --no-cache python3 make g++

WORKDIR /app

# Copy package files (support both npm and pnpm)
COPY package.json package-lock.json* pnpm-lock.yaml* ./

# Install dependencies (prefer npm if package-lock.json exists)
RUN if [ -f package-lock.json ]; then \
        npm ci; \
    elif [ -f pnpm-lock.yaml ]; then \
        corepack enable && corepack prepare pnpm@latest --activate && pnpm install --frozen-lockfile; \
    else \
        npm install; \
    fi

# Copy source code
COPY . .

# Build TypeScript (生成 dist，包括迁移脚本)
RUN npm run build

# 只保留生产依赖，避免在生产阶段再次 npm install
RUN npm prune --omit=dev

# Production stage
FROM node:20-alpine

# Install FFmpeg for video processing and netcat for health checks
RUN apk add --no-cache ffmpeg netcat-openbsd

WORKDIR /app

# 直接使用 builder 已安装并 prune 过的 node_modules，不再在此阶段 npm ci
COPY --from=builder /app/package.json ./
COPY --from=builder /app/node_modules ./node_modules

# Copy built files from builder (包括迁移文件)
COPY --from=builder /app/dist ./dist
COPY --from=builder /app/bootstrap.js ./
COPY --from=builder /app/docker-entrypoint.sh ./

# Create required directories
RUN mkdir -p logs temp config && chmod +x docker-entrypoint.sh

ENV APP_PORT=7001

# Expose port
EXPOSE 7001

# Health check
HEALTHCHECK --interval=30s --timeout=10s --start-period=60s --retries=5 \
  CMD sh -c 'nc -z localhost "${APP_PORT:-7001}" || exit 1'

# Start application
ENTRYPOINT ["./docker-entrypoint.sh"]