FROM python:3.9-slim AS builder

WORKDIR /app

COPY ./pyproject.toml .
COPY ./poetry.lock .

# Install build dependencies
RUN apt-get update \
    && apt-get install -y --no-install-recommends build-essential \
    && pip install --upgrade pip poetry \
    && poetry config virtualenvs.create false \
    && poetry install --no-interaction --no-ansi

FROM python:3.9-slim

WORKDIR /app

# Install runtime dependencies
RUN apt-get update \
    && apt-get install -y --no-install-recommends libpq5 redis-server \
    && apt-get clean \
    && rm -rf /var/lib/apt/lists/*

# Install PostgreSQL client
RUN apt-get update \
    && apt-get install -y --no-install-recommends postgresql-client \
    && apt-get clean \
    && rm -rf /var/lib/apt/lists/*

# Switch to the root user
USER root

# Copy the built virtual environment from the builder stage
COPY --from=builder /usr/local /usr/local

# Copy the rest of the backend files to the container
COPY ./ .

# Initialize PostgreSQL data directory and set permissions
RUN mkdir -p /usr/local/pgsql/data \
    && chown -R postgres:postgres /usr/local/pgsql/data \
    && su -c "/usr/local/pgsql/bin/initdb -D /usr/local/pgsql/data" postgres

# Start Redis server and PostgreSQL
CMD ["bash", "-c", "redis-server --daemonize yes && su -c '/usr/local/pgsql/bin/pg_ctl start -D /usr/local/pgsql/data -l logfile' postgres && uvicorn app:app --host 0.0.0.0 --port 7860"]