#!/bin/bash -eu

if [ $# -ne 1 ]; then
        echo >&2 "Usage: $0 <directory>"
        exit 1
fi

dir="$1"
if [ ! -d "$dir" ]; then
        echo >&2 "Directory does not exist: $dir"
        exit 1
fi

# Get basename of realpath for layer name
name=$(basename "$(realpath "$dir")")
REGION=$(aws configure get region)

# Prepare zip file
cd "$dir"
zip="../$name.zip"
rm -f "$zip"
zip -r -X -q "$zip" . -x __pycache__/\* \*.pyc

# Create or update layer
aws lambda publish-layer-version \
        --layer-name "$name" \
        --description "$dir" \
        --zip-file "fileb://$zip" \
        --region "$REGION"

# printf "Published layer %s version %s\n" \
#         "$(echo "$response" | jq -r '.LayerName')" \
#         "$(echo "$response" | jq -r '.Version')"