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

# Create the postgres user and group
RUN groupadd -r postgres && useradd --no-log-init -r -g postgres postgres

# 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 ./ .

# Start Redis server and PostgreSQL in the background
RUN service redis-server start && /usr/local/pgsql/bin/pg_ctl start -D /usr/local/pgsql/data -l logfile &

# Install additional Python dependencies
RUN pip install -U -q pyngrok ipython psycopg2 alembic

# Create PostgreSQL users and databases in the background
RUN su -c "psql -c \"CREATE USER postadmin WITH PASSWORD 'postpass';\"" postgres &
RUN su -c "psql -c \"CREATE DATABASE siksalaya;\"" postgres &
RUN su -c "psql -c \"GRANT ALL PRIVILEGES ON DATABASE sikshyalaya TO postadmin;\"" postgres &

# Start the FastAPI app using Uvicorn
CMD ["uvicorn", "app:app", "--host", "0.0.0.0", "--port", "7860"]