# syntax=docker/dockerfile:1.4
# Chess Tutor web UI — Vite static build + Python API on port 8765.
#
# Runtime files staged explicitly (not whole docs/ or data/ trees):
#   docs/playstyle_catalog*.yaml     — coaching copy (3 YAML files only)
#   data/models/.../playstyle_teacher.joblib
#   data/models/.../opening_climber_stats.joblib
#   data/inference/chesscom_lichess_rapid_linear.joblib
#   data/web_artifacts/cohort/standard_600/*
#   data/lichess-puzzles/...         — copied when present locally (optional)
#
# Not included: playstyle_feature_lookup.json, research docs, cohort DB,
# playstyle_elo.joblib. Rust prebuilt is copied when present (amd64 speedup).
#
# Build:
#   docker build -t chess-tutor-web .
# Run:
#   docker run --rm -p 8765:8765 chess-tutor-web

FROM node:20-bookworm-slim AS frontend

WORKDIR /app/src/chess_tutor/web/frontend

COPY src/chess_tutor/web/frontend/package.json src/chess_tutor/web/frontend/package-lock.json ./
RUN npm ci

COPY src/chess_tutor/web/frontend/ ./
RUN npm run build


FROM python:3.12-slim-bookworm AS runtime

WORKDIR /app

RUN apt-get update \
    && apt-get install -y --no-install-recommends curl \
    && rm -rf /var/lib/apt/lists/*

COPY requirements-web.txt pyproject.toml ./
RUN printf '%s\n' '# Chess Tutor web image' > Initial-plan.md

COPY src ./src
COPY classical-eval-rs/prebuilt/ classical-eval-rs/prebuilt/
COPY docker/entrypoint.sh docker/stage-web-data.sh /tmp/docker/

COPY docs/playstyle_catalog.yaml \
     docs/playstyle_catalog_extended_dimensions.yaml \
     docs/playstyle_catalog_coaching_dimensions.yaml \
     /tmp/stage/catalog/

COPY data/models/cohort/standard_600/playstyle_teacher.joblib \
     data/models/cohort/standard_600/opening_climber_stats.joblib \
     /tmp/stage/models/

COPY data/inference/chesscom_lichess_rapid_linear.joblib /tmp/stage/inference/

COPY data/web_artifacts/cohort/standard_600/ /tmp/stage/web_artifacts/

# Optional puzzle shard from local checkout (skipped when file is absent)
RUN --mount=type=bind,source=.,target=/ctx,readonly \
    mkdir -p /tmp/stage/lichess-puzzles/data \
    && if [ -f /ctx/data/lichess-puzzles/data/train-00000-of-00003.parquet ]; then \
         cp /ctx/data/lichess-puzzles/data/train-00000-of-00003.parquet /tmp/stage/lichess-puzzles/data/; \
       fi

RUN chmod +x /tmp/docker/stage-web-data.sh /tmp/docker/entrypoint.sh \
    && /tmp/docker/stage-web-data.sh /tmp/stage /app \
    && mv /tmp/docker/entrypoint.sh /entrypoint.sh \
    && rm -rf /tmp/stage /tmp/docker

RUN pip install --no-cache-dir -U pip wheel \
    && pip install --no-cache-dir -r requirements-web.txt \
    && pip install --no-cache-dir -e . --no-deps \
    && pip install --no-cache-dir \
        "numpy==2.4.4" \
        "scipy>=1.14.1,<1.18" \
        "scikit-learn>=1.5.0,<1.9"

COPY --from=frontend /app/src/chess_tutor/web/static ./src/chess_tutor/web/static

ENV HOST=0.0.0.0 \
    PORT=8765 \
    DOWNLOAD_PUZZLES=0 \
    PYTHONUNBUFFERED=1

EXPOSE 8765

HEALTHCHECK --interval=30s --timeout=5s --start-period=120s --retries=3 \
    CMD curl -fsS "http://127.0.0.1:8765/api/version" >/dev/null || exit 1

ENTRYPOINT ["/entrypoint.sh"]