# ============================================
# Base stage - shared configuration
# ============================================
FROM oven/bun:latest AS base
WORKDIR /app

# Install system dependencies with cleanup in same layer
RUN apt-get update && \
    apt-get install -y --no-install-recommends git && \
    rm -rf /var/lib/apt/lists/* /tmp/* /var/tmp/*

# ============================================
# Dependencies stage - installs all deps
# ============================================
FROM base AS deps

# Copy only package files first (better layer caching)
COPY package.json bun.lock ./
COPY panel/package.json panel/

# Install dependencies
RUN bun install --frozen-lockfile

# ============================================
# Development stage - for local dev with volume mounts
# ============================================
FROM base AS development

# Copy dependencies from deps stage
COPY --from=deps /app/node_modules ./node_modules

# Expose ports
EXPOSE 3000

# Default command
CMD ["bun", "run", "dev"]

# ============================================
# Builder stage - copies source for production
# ============================================
FROM base AS builder

# Copy dependencies from deps stage
COPY --from=deps /app/node_modules ./node_modules

# Copy source code
COPY . .

# Build admin panel
RUN cd panel && bun run build

# ============================================
# Production stage - minimal runtime image
# ============================================
FROM oven/bun:latest AS production
WORKDIR /app

# Copy only what's needed for production
COPY --from=builder --chown=bun:bun /app/node_modules ./node_modules
COPY --from=builder --chown=bun:bun /app/web/src ./web/src
COPY --from=builder --chown=bun:bun /app/bot ./bot
COPY --from=builder --chown=bun:bun /app/shared ./shared
COPY --from=builder --chown=bun:bun /app/panel/dist ./panel/dist
COPY --from=builder --chown=bun:bun /app/package.json .
COPY --from=builder --chown=bun:bun /app/drizzle.config.ts .
COPY --from=builder --chown=bun:bun /app/tsconfig.json .

# Switch to non-root user
USER bun

# Expose web dashboard port
EXPOSE 3000

# Health check
HEALTHCHECK --interval=30s --timeout=10s --start-period=40s --retries=3 \
    CMD bun -e "fetch('http://localhost:3000/api/health').then(r => r.ok ? process.exit(0) : process.exit(1)).catch(() => process.exit(1))"

# Run in production mode
CMD ["bun", "run", "bot/index.ts"]