"""Pytest configuration — add shared layer source to sys.path so handler imports resolve."""

import os
import sys

# Several Lambda handlers construct boto3.client(...) at module load. On a CI
# runner with no AWS config this raises NoRegionError during test collection
# (a real region is read from ~/.aws/config locally, masking it). Set a default
# region before any import. Client construction is offline; real calls are mocked.
os.environ.setdefault("AWS_DEFAULT_REGION", "us-east-1")
os.environ.setdefault("AWS_REGION", "us-east-1")

# Add the repo root so `import functions.<name>.handler` resolves under a bare
# `pytest` invocation. `python -m pytest` injects the CWD automatically, but CI
# runs `pytest` directly, which does not — hence tests passed locally yet failed
# to collect in CI.
_repo_root = os.path.abspath(os.path.join(os.path.dirname(__file__), os.pardir))
sys.path.insert(0, _repo_root)

# Add the shared layer source directory so `from shared.db import ...` works
# without requiring a real Lambda layer or .aws-sam build.
_shared_layer_dir = os.path.join(os.path.dirname(__file__), os.pardir, "src", "shared")
sys.path.insert(0, os.path.abspath(_shared_layer_dir))