#!/usr/bin/env bash
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# shellcheck source=./InstallFromCompressedFileFromURL.sh
source "${BASH_SOURCE%/*}/InstallFromCompressedFileFromURL.sh"
# shellcheck source=./SetEnvVar.sh
source "${BASH_SOURCE%/*}/SetEnvVar.sh"
# shellcheck source=./DownloadURL.sh
source "${BASH_SOURCE%/*}/DownloadURL.sh"

version="1.38.27"
version_node="8.9.1"
urlOfficial="https://s3.amazonaws.com/mozilla-games/emscripten/packages"
urlCache="http://ci-files01-hki.intra.qt.io/input/emsdk"
targetFolder="/opt/emsdk"

urlEmscriptenCache="$urlCache/emscripten-$version.tar.gz"
urlEmscriptenExternal="https://github.com/kripken/emscripten/archive/$version.tar.gz"
sha1Emscripten="ff9748a8f6b8eaa8192cce9fe2befc801443a161"

if uname -a |grep -q Darwin; then
    urlEmscriptenLlvmCache="$urlCache/macos/emscripten-llvm-e$version.tar.gz"
    urlEmscriptenLlvmExternal="$urlOfficial/llvm/tag/osx_64bit/emscripten-llvm-e$version.tar.gz"
    urlNodeCache="$urlCache/macos/node-v$version_node-darwin-x64.tar.gz"
    urlNodeExternal="$urlOfficial/node-v$version_node-darwin-x64.tar.gz"
    sha1EmscriptenLlvm="66dffbc44cfcb7bcb1ed0d2658b519276c3077fa"
    sha1Node="b9ec6fe9701d385e385886a4b171ba02bb6aead7"
    node_js="$targetFolder/node-v$version_node-darwin-x64/bin"
else
    urlEmscriptenLlvmCache="$urlCache/linux/emscripten-llvm-e$version.tar.gz"
    urlEmscriptenLlvmExternal="$urlOfficial/llvm/tag/linux_64bit/emscripten-llvm-e$version.tar.gz"
    urlNodeCache="$urlCache/linux/node-v$version_node-linux-x64.tar.xz"
    urlNodeExternal="$urlOfficial/node-v$version_node-linux-x64.tar.xz"
    sha1EmscriptenLlvm="8f5cd026c98cd40e53e6d11fbc32b116280ef9bb"
    sha1Node="eaec5de2af934f7ebc7f9597983e71c5d5a9a726"
    node_js="$targetFolder/node-v$version_node-linux-x64/bin"
fi

sudo mkdir "$targetFolder"

InstallFromCompressedFileFromURL "$urlEmscriptenCache" "$urlEmscriptenExternal" "$sha1Emscripten" "$targetFolder" ""
InstallFromCompressedFileFromURL "$urlEmscriptenLlvmCache" "$urlEmscriptenLlvmExternal" "$sha1EmscriptenLlvm" "$targetFolder" ""
InstallFromCompressedFileFromURL "$urlNodeCache" "$urlNodeExternal" "$sha1Node" "$targetFolder" ""

sudo chmod -R a+rwx "$targetFolder"

echo "Writing $targetFolder/.emscripten"
cat <<EOM >"$targetFolder/.emscripten"
LLVM_ROOT='$targetFolder/emscripten-llvm-e$version/'
EMSCRIPTEN_NATIVE_OPTIMIZER='$targetFolder/emscripten-llvm-e$version/optimizer'
BINARYEN_ROOT='$targetFolder/emscripten-llvm-e$version/binaryen'
NODE_JS='$node_js/node'
EMSCRIPTEN_ROOT='$targetFolder/emscripten-$version'
SPIDERMONKEY_ENGINE = ''
V8_ENGINE = ''
TEMP_DIR = '/tmp'
COMPILER_ENGINE = NODE_JS
JS_ENGINES = [NODE_JS]
EOM

SetEnvVar "PATH" "\"\$PATH:$targetFolder/emscripten-llvm-e$version/:$node_js:$targetFolder/emscripten-$version\""
SetEnvVar "EMSCRIPTEN" "$targetFolder/emscripten-$version"
SetEnvVar "EM_CONFIG" "$targetFolder/.emscripten"

echo "Emsdk = $version" >> ~/versions.txt
echo "Emsdk node = $version_node" >> ~/versions.txt