# get the base image
FROM rust:1.66-slim AS build

# install build dependencies
RUN apt update \
    && apt install -y --no-install-recommends lsb-release apt-transport-https \
    build-essential curl wget pkg-config libssl-dev

# vars
ENV PERSEUS_VERSION=0.4.0-beta.21 \
    PERSEUS_SIZE_OPT_VERSION=0.1.9 \
    ESBUILD_VERSION=0.14.7 \
    BINARYEN_VERSION=112

# prepare root project dir
WORKDIR /app

# download the target for wasm
RUN rustup target add wasm32-unknown-unknown

# install wasm-pack
RUN cargo install wasm-pack

# retrieve the src dir
COPY . .
# RUN curl https://git.albv.org/alban/fast-insiders/archive/master.tar.gz | tar -xz

# go to src dir
WORKDIR /app/client

# install perseus-cli
RUN cargo install perseus-cli --version $PERSEUS_VERSION

# clean and prep app
RUN perseus clean

# specify deps in app config
RUN sed -i s"/perseus = .*/perseus = \"${PERSEUS_VERSION}\"/" ./Cargo.toml \
    && sed -i s"/perseus-size-opt = .*/perseus-size-opt = \"${PERSEUS_SIZE_OPT_VERSION}\"/" ./Cargo.toml \
    && cat ./Cargo.toml

# modify main.rs
RUN sed -i s'/SizeOpts::default()/SizeOpts { wee_alloc: true, lto: true, opt_level: "s".to_string(), codegen_units: 1, enable_fluent_bundle_patch: false, }/' ./src/main.rs \
    && cat ./src/main.rs

ARG API_URL
ENV API_URL $API_URL

# run plugin(s) to adjust app
RUN perseus tinker

# single-threaded perseus CLI mode required for low memory environments
#ENV PERSEUS_CLI_SEQUENTIAL=true

# deploy app
RUN perseus deploy

# go back to app dir
WORKDIR /app

# download and unpack esbuild
RUN curl -O https://registry.npmjs.org/esbuild-linux-64/-/esbuild-linux-64-${ESBUILD_VERSION}.tgz \
    && tar xf esbuild-linux-64-${ESBUILD_VERSION}.tgz \
    && ./package/bin/esbuild --version

# run esbuild against bundle.js
RUN ./package/bin/esbuild ./client/pkg/dist/pkg/perseus_engine.js --minify --target=es6 --outfile=./client/pkg/dist/pkg/perseus_engine.js --allow-overwrite \
    && ls -lha ./client/pkg/dist/pkg

# download and unpack binaryen
RUN wget -nv https://github.com/WebAssembly/binaryen/releases/download/version_${BINARYEN_VERSION}/binaryen-version_${BINARYEN_VERSION}-x86_64-linux.tar.gz \
    && tar xf binaryen-version_${BINARYEN_VERSION}-x86_64-linux.tar.gz \
    && ./binaryen-version_${BINARYEN_VERSION}/bin/wasm-opt --version

# run wasm-opt against bundle.wasm
RUN ./binaryen-version_${BINARYEN_VERSION}/bin/wasm-opt -Os ./client/pkg/dist/pkg/perseus_engine_bg.wasm -o ./client/pkg/dist/pkg/perseus_engine_bg.wasm

# prepare deployment image
FROM debian:stable-slim

WORKDIR /app

COPY --from=build /app/client/pkg /app/

ENV HOST=0.0.0.0

CMD ./server