FROM public.ecr.aws/lambda/python:3.11

ARG DEV_DB_HOST
ARG DEV_DB_PORT
ARG DEV_DB_NAME

ENV DB_HOST=${DEV_DB_HOST}
ENV DB_PORT=${DEV_DB_PORT}
ENV DB_NAME=${DEV_DB_NAME}

# Set working directory (Lambda task root)
WORKDIR /var/task

COPY backend/postcode_splitter/handler/requirements.txt .

RUN pip install --no-cache-dir -r requirements.txt

# Copy necessary files for database and utility imports
COPY utils/ utils/
COPY backend/ backend/
COPY datatypes/ datatypes/
# backend.app.db.models.recommendations imports infrastructure.postgres.modelling,
# which imports domain.modelling; without these the lambda fails at init with
# "No module named 'infrastructure'" / "'domain'".
COPY infrastructure/ infrastructure/
COPY domain/ domain/

# Copy the handler
COPY backend/postcode_splitter/main.py .

# Lambda handler
CMD ["main.handler"]