FROM node:20-alpine AS base

# Install dependencies needed for yt-dlp and ffmpeg
RUN apk add --no-cache \
    python3 \
    ffmpeg \
    ca-certificates \
    && wget https://github.com/yt-dlp/yt-dlp/releases/latest/download/yt-dlp -O /usr/local/bin/yt-dlp \
    && chmod a+rx /usr/local/bin/yt-dlp

# Set environment variables
ENV YT_DLP_PATH=/usr/local/bin/yt-dlp
ENV FFMPEG_PATH=/usr/bin/ffmpeg

# Install dependencies only when needed
FROM base AS deps
WORKDIR /app

COPY package.json package-lock.json* ./
RUN npm ci

# Build the application
FROM base AS builder
WORKDIR /app

COPY --from=deps /app/node_modules ./node_modules
COPY . .

RUN npm run build

# Production image
FROM base AS runner
WORKDIR /app

ENV NODE_ENV=production

RUN addgroup --system --gid 1001 nodejs
RUN adduser --system --uid 1001 nextjs

# Create downloads directories
RUN mkdir -p /app/downloads /app/public/downloads \
    && chown -R nextjs:nodejs /app

COPY --from=builder /app/public ./public
COPY --from=builder --chown=nextjs:nodejs /app/.next/standalone ./
COPY --from=builder --chown=nextjs:nodejs /app/.next/static ./.next/static

USER nextjs

EXPOSE 3000

ENV PORT=3000
ENV HOSTNAME="0.0.0.0"

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