# Use official n8n Docker image instead of building from scratch
FROM docker.n8n.io/n8nio/n8n:latest

# Switch to root for configuration
USER root

# Install additional tools for Hugging Face Spaces
RUN apk add --no-cache curl bash

# Hugging Face Spaces specific settings
ENV N8N_PORT=7860
ENV N8N_HOST=0.0.0.0
ENV N8N_PROTOCOL=https

# Database configuration - Using SQLite for HF Spaces compatibility
ENV DB_TYPE=sqlite
ENV DB_SQLITE_DATABASE=/home/node/.n8n/database.sqlite

# Community packages enable करें
ENV N8N_COMMUNITY_PACKAGES_ENABLED=true
ENV N8N_COMMUNITY_PACKAGES_ALLOW_TOOL_USAGE=true

# MOST IMPORTANT: gzip compression disable करें (आपकी main problem का solution)
ENV COMPRESSION_ENABLED=false
ENV N8N_DISABLE_GZIP=true
ENV N8N_DISABLE_PRODUCTION_MAIN_PROCESS_RESPONSE_COMPRESSION=true
ENV DISABLE_COMPRESSION=true
ENV NODE_OPTIONS="--max-old-space-size=4096"

# NO AUTHENTICATION
ENV N8N_BASIC_AUTH_ACTIVE=false
ENV N8N_USER_MANAGEMENT_DISABLED=true

# File permissions और encryption key settings
ENV N8N_ENFORCE_SETTINGS_FILE_PERMISSIONS=false

# Performance settings
ENV N8N_LOG_LEVEL=info

# Switch to node user and create directories
USER node

# Create user directories with proper permissions
RUN mkdir -p /home/node/.n8n/database /home/node/.n8n/config /home/node/.n8n/workflows /home/node/.n8n/logs

# Switch back to root for script creation
USER root

# Create startup script with URL display
RUN echo '#!/bin/bash' > /start.sh && \
    echo '' >> /start.sh && \
    echo 'echo "🚀 ===== n8n Starting on Hugging Face Spaces ====="' >> /start.sh && \
    echo '' >> /start.sh && \
    echo '# Dynamic URL detection' >> /start.sh && \
    echo 'if [ -n "$SPACE_ID" ]; then' >> /start.sh && \
    echo '    APP_URL="https://$SPACE_ID.hf.space"' >> /start.sh && \
    echo 'elif [ -n "$SPACE_HOST" ]; then' >> /start.sh && \
    echo '    APP_URL="https://$SPACE_HOST"' >> /start.sh && \
    echo 'else' >> /start.sh && \
    echo '    APP_URL="http://localhost:7860"' >> /start.sh && \
    echo 'fi' >> /start.sh && \
    echo '' >> /start.sh && \
    echo '# Set dynamic URLs' >> /start.sh && \
    echo 'export N8N_BASE_URL="$APP_URL/"' >> /start.sh && \
    echo 'export WEBHOOK_URL="$APP_URL/"' >> /start.sh && \
    echo 'export N8N_EDITOR_BASE_URL="$APP_URL"' >> /start.sh && \
    echo '' >> /start.sh && \
    echo 'echo "🌐 n8n will be available at: $APP_URL"' >> /start.sh && \
    echo 'echo "📊 Configuration:"' >> /start.sh && \
    echo 'echo "   - Port: $N8N_PORT"' >> /start.sh && \
    echo 'echo "   - Database: SQLite (local)"' >> /start.sh && \
    echo 'echo "   - Compression: DISABLED ✅"' >> /start.sh && \
    echo 'echo "   - Community Packages: ENABLED ✅"' >> /start.sh && \
    echo 'echo "   - Authentication: DISABLED ✅"' >> /start.sh && \
    echo 'echo ""' >> /start.sh && \
    echo '' >> /start.sh && \
    echo 'echo "🎯 Starting n8n server..."' >> /start.sh && \
    echo '' >> /start.sh && \
    echo '# Start n8n with proper user' >> /start.sh && \
    echo 'su node -c "n8n start"' >> /start.sh

# Make script executable
RUN chmod +x /start.sh

# Set working directory
WORKDIR /home/node

# Expose port for Hugging Face Spaces
EXPOSE 7860

# Health check
HEALTHCHECK --interval=30s --timeout=10s --start-period=45s --retries=3 \
  CMD curl -f http://localhost:7860/healthz || curl -f http://localhost:7860/ || exit 1

# Use custom startup script
CMD ["/start.sh"]