# Build stage: Install dependencies using pixi
FROM ghcr.io/prefix-dev/pixi:latest AS builder

WORKDIR /app

# Copy project files
COPY pixi.toml .
COPY pyproject.toml .
COPY scripts/ scripts/
COPY bttoxin/ bttoxin/
COPY web/ web/
COPY Data/ Data/
COPY frontend/ frontend/

# Install all pixi environments
RUN pixi install

# Create shell hook for webbackend environment
RUN pixi shell-hook -e webbackend > /shell-hook.sh
RUN echo 'exec "$@"' >> /shell-hook.sh

# ===========================
# Stage 1: Build frontend
# ===========================
FROM node:20 AS frontend-builder
WORKDIR /app
COPY --from=builder /app/frontend ./
RUN npm install -g pnpm && pnpm install && pnpm build

# ===========================
# Stage 2: Production (Nginx + Backend)
# ===========================
FROM ubuntu:24.04 AS production

WORKDIR /app

# Install Nginx and runtime dependencies
RUN apt-get update && apt-get install -y --no-install-recommends \
    nginx \
    curl \
    && rm -rf /var/lib/apt/lists/*

# Copy pixi executable from builder
COPY --from=builder /usr/local/bin/pixi /usr/local/bin/pixi
RUN chmod +x /usr/local/bin/pixi

# Copy backend environment from builder
COPY --from=builder /app/.pixi /app/.pixi
COPY --from=builder /shell-hook.sh /shell-hook.sh

# Copy backend code
COPY --from=builder /app/web /app/web
COPY --from=builder /app/Data /app/Data
COPY --from=builder /app/bttoxin /app/bttoxin
COPY --from=builder /app/scripts /app/scripts

# Copy built frontend
COPY --from=frontend-builder /app/dist /var/www/html

# Create jobs directory
RUN mkdir -p /app/jobs && chmod 777 /app/jobs

# Configure Nginx
RUN cat > /etc/nginx/sites-available/default << 'EOF'
server {
    listen 80;
    server_name _;
    root /var/www/html;
    index index.html;

    # Gzip compression
    gzip on;
    gzip_types text/plain text/css application/json application/javascript text/xml application/xml;

    # Allow uploads up to 100M
    client_max_body_size 100M;

    # Frontend routes - serve index.html for SPA
    location / {
        try_files $uri $uri/ /index.html;
    }

    # API proxy to backend
    location /api/ {
        proxy_pass http://127.0.0.1:8000/;
        proxy_http_version 1.1;
        proxy_set_header Upgrade $http_upgrade;
        proxy_set_header Connection 'upgrade';
        proxy_set_header Host $host;
        proxy_set_header X-Real-IP $remote_addr;
        proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
        proxy_set_header X-Forwarded-Proto $scheme;
        proxy_cache_bypass $http_upgrade;
    }

    # Health check endpoint
    location /health {
        proxy_pass http://127.0.0.1:8000/api/health;
    }
}
EOF

# Expose port
EXPOSE 80

# Health check
HEALTHCHECK --interval=30s --timeout=10s --start-period=5s --retries=3 \
    CMD curl -f http://localhost/health || exit 1

# Entrypoint
ENTRYPOINT ["/bin/bash", "/shell-hook.sh"]

# Command: Start Nginx and Backend
CMD ["bash", "-c", "\
    mkdir -p /app/jobs && \
    uvicorn web.backend.main:app --host 127.0.0.1 --port 8000 & \
    nginx -g 'daemon off;' \
"]