# Copyright (c) Meta Platforms, Inc. and affiliates.
# All rights reserved.
#
# This source code is licensed under the BSD-style license found in the
# LICENSE file in the root directory of this source tree.

# Multi-stage build using openenv-base
# Build context: SpaceFactory/ (the package root)

ARG BASE_IMAGE=ghcr.io/meta-pytorch/openenv-base:latest
FROM ${BASE_IMAGE} AS builder

WORKDIR /app

# Ensure git is available (required for installing dependencies from VCS)
RUN apt-get update && \
    apt-get install -y --no-install-recommends git && \
    rm -rf /var/lib/apt/lists/*

ARG BUILD_MODE=in-repo
ARG ENV_NAME=SpaceFactory

# Copy build context (SpaceFactory/) into a directory named SpaceFactory
# so uv can resolve pyproject.toml and the package is importable later.
COPY . /app/SpaceFactory

WORKDIR /app/SpaceFactory

# Ensure uv is available
RUN if ! command -v uv >/dev/null 2>&1; then \
        curl -LsSf https://astral.sh/uv/install.sh | sh && \
        mv /root/.local/bin/uv /usr/local/bin/uv && \
        mv /root/.local/bin/uvx /usr/local/bin/uvx; \
    fi

# Install dependencies
RUN --mount=type=cache,target=/root/.cache/uv \
    if [ -f uv.lock ]; then \
        uv sync --frozen --no-install-project --no-editable; \
    else \
        uv sync --no-install-project --no-editable; \
    fi

RUN --mount=type=cache,target=/root/.cache/uv \
    if [ -f uv.lock ]; then \
        uv sync --frozen --no-editable; \
    else \
        uv sync --no-editable; \
    fi

# ── Frontend build stage ───────────────────────────────────────────────────────
FROM node:20-bookworm-slim AS frontend-builder

WORKDIR /app/frontend

COPY --from=builder /app/SpaceFactory/frontend .

RUN npm install
RUN npm run build

# ── Final runtime stage ────────────────────────────────────────────────────────
FROM ${BASE_IMAGE}

WORKDIR /app

# Copy the virtual environment from builder
COPY --from=builder /app/SpaceFactory/.venv /app/.venv

# Copy the package — lives at /app/SpaceFactory/ so Python finds it as 'SpaceFactory'
COPY --from=builder /app/SpaceFactory /app/SpaceFactory

# Overlay the built frontend
COPY --from=frontend-builder /app/frontend/dist /app/SpaceFactory/frontend/dist

ENV PATH="/app/.venv/bin:$PATH"

# /app is the parent of the SpaceFactory package directory
ENV PYTHONPATH="/app:$PYTHONPATH"

HEALTHCHECK --interval=30s --timeout=3s --start-period=5s --retries=3 \
    CMD curl -f http://localhost:8000/health || exit 1

CMD ["uvicorn", "SpaceFactory.server.app:app", "--host", "0.0.0.0", "--port", "8000"]