# 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
# This Dockerfile is flexible and works for both:
# - In-repo environments (with local src/core)
# - Standalone environments (with openenv-core from pip)
# The build script (openenv build) handles context detection and sets appropriate build args.

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

WORKDIR /app

# Build argument to control whether we're building standalone or in-repo
ARG BUILD_MODE=in-repo

# Copy environment code (always at root of build context)
COPY . /app/env

# For in-repo builds, openenv-core is already in the pyproject.toml dependencies
# For standalone builds, openenv-core will be installed from pip via pyproject.toml
WORKDIR /app/env

# Ensure uv is available (for local builds where base image lacks it)
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 git and system dependencies for Playwright browsers
RUN apt-get update && apt-get install -y --no-install-recommends \
    git \
    wget \
    curl \
    # Playwright browser dependencies
    libnss3 \
    libnspr4 \
    libatk1.0-0 \
    libatk-bridge2.0-0 \
    libcups2 \
    libdrm2 \
    libdbus-1-3 \
    libxkbcommon0 \
    libatspi2.0-0 \
    libxcomposite1 \
    libxdamage1 \
    libxfixes3 \
    libxrandr2 \
    libgbm1 \
    libpango-1.0-0 \
    libcairo2 \
    libasound2 \
    libxshmfence1 \
    fonts-unifont \
    fonts-noto-color-emoji \
    && rm -rf /var/lib/apt/lists/*

# Install dependencies using uv sync
# First pass: install dependencies without the project (for better caching)
# Second pass: install the project itself
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

# Install Playwright browsers (Chromium by default)
RUN .venv/bin/python -m playwright install chromium

# Install MiniWoB++ tasks
RUN git clone --depth 1 https://github.com/Farama-Foundation/miniwob-plusplus.git /app/miniwob-plusplus

# Final runtime stage
FROM ${BASE_IMAGE}

WORKDIR /app

# Install runtime system libraries for Playwright
RUN apt-get update && apt-get install -y --no-install-recommends \
    libnss3 \
    libnspr4 \
    libatk1.0-0 \
    libatk-bridge2.0-0 \
    libcups2 \
    libdrm2 \
    libdbus-1-3 \
    libxkbcommon0 \
    libatspi2.0-0 \
    libxcomposite1 \
    libxdamage1 \
    libxfixes3 \
    libxrandr2 \
    libgbm1 \
    libpango-1.0-0 \
    libcairo2 \
    libasound2 \
    libxshmfence1 \
    fonts-unifont \
    fonts-noto-color-emoji \
    && rm -rf /var/lib/apt/lists/*

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

# Copy the environment code
COPY --from=builder /app/env /app/env

# Copy MiniWoB++ tasks
COPY --from=builder /app/miniwob-plusplus /app/miniwob-plusplus

# Copy Playwright browsers from builder
COPY --from=builder /root/.cache/ms-playwright /root/.cache/ms-playwright

# Set PATH to use the virtual environment
ENV PATH="/app/.venv/bin:$PATH"

# Set PYTHONPATH so imports work correctly
ENV PYTHONPATH="/app/env:$PYTHONPATH"

# Set environment variables
ENV PYTHONUNBUFFERED=1
ENV BROWSERGYM_BENCHMARK=miniwob
ENV BROWSERGYM_TASK_NAME="click-test"
ENV BROWSERGYM_HEADLESS=true
ENV BROWSERGYM_VIEWPORT_WIDTH=1280
ENV BROWSERGYM_VIEWPORT_HEIGHT=720
ENV BROWSERGYM_TIMEOUT=10000
ENV BROWSERGYM_PORT=8000
ENV MINIWOB_HTML_DIR=/app/miniwob-plusplus/miniwob/html
ENV MINIWOB_HTTP_PORT=8888
ENV MINIWOB_URL=http://127.0.0.1:8888/miniwob/
ENV ENABLE_WEB_INTERFACE=true

# Expose ports
EXPOSE 8000
EXPOSE 8888

# Health check using Python (more portable than curl/wget)
HEALTHCHECK --interval=30s --timeout=3s --start-period=10s --retries=3 \
    CMD python -c "import urllib.request; urllib.request.urlopen('http://localhost:8000/health')" || exit 1

# Run the server using start script or directly
CMD ["sh", "-c", "cd /app/env && if [ -f server/start.sh ]; then chmod +x server/start.sh && ./server/start.sh; else uvicorn server.app:app --host 0.0.0.0 --port 8000; fi"]