# ============================================
# Base stage for shared configuration
# ============================================
FROM node:20.11-alpine3.19 AS base

# Configure build environment with optimized settings
ENV NODE_OPTIONS="--max_old_space_size=3072" \
    NEXT_TELEMETRY_DISABLED=1 \
    NODE_ENV=production \
    PYTHONDONTWRITEBYTECODE=1 \
    TZ=UTC

# Install base dependencies
RUN apk add --no-cache tzdata && \
    ln -s /usr/share/zoneinfo/${TZ} /etc/localtime && \
    echo ${TZ} > /etc/timezone

# ============================================
# Web builder stage
# ============================================
FROM base AS web-builder

WORKDIR /app/web

# Copy package files first
COPY web/package.json web/yarn.lock ./

# Install dependencies
RUN yarn install --frozen-lockfile --production=false

# Copy web source
COPY web/ .

# Build with standalone output
RUN yarn build

# ============================================
# Python builder stage
# ============================================
FROM python:3.10-slim-bookworm AS python-builder

# Install build dependencies
RUN apt-get update && \
    apt-get install -y --no-install-recommends \
    gcc g++ libc-dev libffi-dev \
    libgmp-dev libmpfr-dev libmpc-dev \
    && rm -rf /var/lib/apt/lists/*

WORKDIR /app/api

# Install poetry with specific version
ENV POETRY_VERSION=1.8.3
RUN pip install --no-cache-dir poetry==${POETRY_VERSION}

# Configure Poetry
ENV POETRY_CACHE_DIR=/tmp/poetry_cache \
    POETRY_NO_INTERACTION=1 \
    POETRY_VIRTUALENVS_IN_PROJECT=true \
    POETRY_VIRTUALENVS_CREATE=true \
    POETRY_REQUESTS_TIMEOUT=15

# Copy and install Python dependencies
COPY api/pyproject.toml api/poetry.lock ./
RUN poetry install --sync --no-cache --no-root

# ============================================
# Final stage
# ============================================
FROM python:3.10-slim-bookworm

# Create non-root user
RUN useradd -m -u 1000 user

# Install runtime dependencies
RUN apt-get update && \
    apt-get install -y --no-install-recommends \
    curl nodejs npm libgmp-dev libmpfr-dev libmpc-dev \
    && echo "deb http://deb.debian.org/debian testing main" > /etc/apt/sources.list \
    && apt-get update \
    && apt-get install -y --no-install-recommends \
    expat=2.6.3-2 libldap-2.5-0=2.5.18+dfsg-3+b1 \
    perl=5.40.0-6 libsqlite3-0=3.46.1-1 \
    zlib1g=1:1.3.dfsg+really1.3.1-1+b1 \
    fonts-noto-cjk \
    && apt-get autoremove -y \
    && rm -rf /var/lib/apt/lists/*

# Set up directory structure
WORKDIR /app
RUN mkdir -p api web && chown -R user:user /app

# Copy Python environment
ENV VIRTUAL_ENV=/app/api/.venv
COPY --from=python-builder /app/api/.venv ${VIRTUAL_ENV}
ENV PATH="${VIRTUAL_ENV}/bin:${PATH}"

# Download NLTK data
RUN python -c "import nltk; nltk.download('punkt'); nltk.download('averaged_perceptron_tagger')"

# Copy application files
COPY --chown=user api/ /app/api/
COPY --from=web-builder --chown=user /app/web/.next/standalone /app/web
COPY --from=web-builder --chown=user /app/web/.next/static /app/web/.next/static
COPY --from=web-builder --chown=user /app/web/public /app/web/public

# Set environment variables
ENV FLASK_APP=app.py \
    EDITION=SELF_HOSTED \
    DEPLOY_ENV=PRODUCTION \
    CONSOLE_API_URL=http://127.0.0.1:7860 \
    CONSOLE_WEB_URL=http://127.0.0.1:3000 \
    SERVICE_API_URL=http://127.0.0.1:7860 \
    APP_WEB_URL=http://127.0.0.1:3000 \
    NODE_ENV=production \
    HOME=/app \
    PATH="/usr/local/bin:${PATH}" \
    PYTHONPATH=/app/api \
    MAIL_TYPE=resend \
    MAIL_RESEND_API_KEY=null \
    TZ=UTC

USER user
EXPOSE 7860 3000

# Copy and setup entrypoint
COPY --chown=user docker/entrypoint.sh /app/entrypoint.sh
RUN chmod +x /app/entrypoint.sh

WORKDIR /app

HEALTHCHECK --interval=30s --timeout=30s --start-period=5s --retries=3 \
    CMD curl -f http://localhost:7860/health || exit 1

CMD ["./entrypoint.sh"]