###########################################################################################
# Stage 0
# Install all dependencies, build output and set up the AWS Lambda RIC.
###########################################################################################
ARG FUNCTION_DIR="/function"
FROM node:14-alpine as builder

ENV HUSKY_SKIP_INSTALL=true
ENV DISABLE_OPENCOLLECTIVE=true
ENV PUPPETEER_SKIP_CHROMIUM_DOWNLOAD=true

# Install build-time dependencies for the Node.js AWS Lambda RIC ("Runtime Interface Client").
RUN apk update && \
    apk add --no-cache --virtual build-dependencies \
    build-base \
    cmake \
    automake \
    autoconf \
    libtool \
    gcc \
    wget \
    curl \
    libcurl \
    curl-dev \
    libexecinfo-dev \
    python3 \
    git

ARG FUNCTION_DIR

RUN mkdir -p ${FUNCTION_DIR}
COPY . ${FUNCTION_DIR}
WORKDIR ${FUNCTION_DIR}

RUN yarn install --frozen-lockfile && yarn run build && yarn install --production --frozen-lockfile
RUN yarn add aws-lambda-ric@1.0.0

###########################################################################################
# Stage 1
# Install Chromium and prepare entrypoint script.
###########################################################################################
FROM node:14-alpine
ARG FUNCTION_DIR
WORKDIR ${FUNCTION_DIR}

# Install AWS Lambda Container dependencies. 
ADD https://github.com/aws/aws-lambda-runtime-interface-emulator/releases/latest/download/aws-lambda-rie /usr/local/bin/aws-lambda-rie
RUN chmod ugo+x /usr/local/bin/aws-lambda-rie
# Runtime dependency for Lambda RIC.
RUN apk add --no-cache nghttp2-libs

# Install Chromium dev build.
RUN echo "@edgecommunity https://dl-cdn.alpinelinux.org/alpine/edge/community" >> /etc/apk/repositories
RUN apk update && \
    apk add --no-cache \
    chromium@edgecommunity \
    nss \
    freetype \
    freetype-dev \
    harfbuzz \
    ca-certificates \
    ttf-freefont
ENV PUPPETEER_EXECUTABLE_PATH="/usr/bin/chromium-browser"

# Copy all build output and Node.js dependencies from stage 0.
COPY --from=builder ${FUNCTION_DIR} ${FUNCTION_DIR}

# If testing locally, run the Lambda RIE ("Runtime Interface Emulator");
# Otherwise run the Lambda RIC ("Runtime Interface Client").
RUN echo -e '#!/bin/sh\n\
if [ -z "${AWS_LAMBDA_RUNTIME_API}" ]; then\n \
  exec /usr/local/bin/aws-lambda-rie /usr/local/bin/npx aws-lambda-ric $1\n \
else\n \
  exec /usr/local/bin/npx aws-lambda-ric $1\n \
fi'\
>> /entrypoint.sh
RUN chmod ugo+x /entrypoint.sh

ENTRYPOINT ["/entrypoint.sh"]
CMD ["lib/lambda.handler"]