# 🏗️ Multi-stage build for optimal caching and size
FROM ghcr.io/astral-sh/uv:python3.13-bookworm-slim AS builder

# 🔧 System dependencies layer (cached unless OS changes)
RUN apt-get update && apt-get install -y \
    postgresql-client \
    git \
    curl \
    build-essential \
    gnupg \
    ca-certificates \
    && rm -rf /var/lib/apt/lists/*

# 📦 Install Node.js LTS (cached until Node.js version changes)
RUN curl -fsSL https://deb.nodesource.com/setup_lts.x | bash - && \
    apt-get install -y nodejs \
    && rm -rf /var/lib/apt/lists/* \
    && npm upgrade -g npm

WORKDIR /app

# 📦 Node.js dependencies layer (cached unless package*.json changes)
COPY package.json package-lock.json ./
RUN npm ci

# 🐍 Python dependencies compilation (with Rust/maturin support)
COPY pyproject.toml uv.lock ./
RUN uv sync --frozen --no-install-project

# 🏗️ Frontend build (build with all dependencies)
COPY . .
# Install local package in builder stage
RUN uv sync --frozen --no-editable
RUN npm run build

# 🚀 Production stage
FROM ghcr.io/astral-sh/uv:python3.13-bookworm-slim

# 🔧 Runtime dependencies only
RUN apt-get update && apt-get install -y \
    postgresql-client \
    && rm -rf /var/lib/apt/lists/*

WORKDIR /app

# 🧠 ML models cache setup (cached unless HF environment changes)
RUN mkdir -p /app/.cache/huggingface && chmod 755 /app/.cache/huggingface
ENV TRANSFORMERS_CACHE=/app/.cache/huggingface
ENV HF_HOME=/app/.cache/huggingface
# Принудительно используем CPU-only версию PyTorch
ENV TORCH_CUDA_AVAILABLE=0

# 🚀 Application code (rebuilt on any code change)
COPY . .

# 📦 Copy compiled Python environment from builder (includes all dependencies + local package)
COPY --from=builder /app/.venv /app/.venv
ENV PATH="/app/.venv/bin:$PATH"

# 📦 Copy built frontend from builder stage
COPY --from=builder /app/dist ./dist

EXPOSE 8000

CMD ["python", "-m", "granian", "main:app", "--interface", "asgi", "--host", "0.0.0.0", "--port", "8000"]