#!/bin/bash
#
# Compiles code with DDC and runs the resulting code in node.js with devtool,
# an Electron-based debugger and browser environment.
#
# The first script supplied should be the one with `main()`.
#
# Saves the output in the same directory as the sources for convenient
# inspection, modification or rerunning the code.
#
set -e
DDC_PATH=$( cd $( dirname "${BASH_SOURCE[0]}" )/.. && pwd )
BASENAME=$( basename "${1%.*}")
LIBROOT=$(cd $( dirname "${1%.*}") && pwd)
export NODE_PATH=$DDC_PATH/lib/js/common:$LIBROOT:$NODE_PATH
dart -c $DDC_PATH/bin/dartdevc.dart --modules=node --library-root=$LIBROOT \
    --dart-sdk-summary=$DDC_PATH/lib/sdk/ddc_sdk.sum \
    -o $LIBROOT/$BASENAME.js $*
pushd $LIBROOT > /dev/null
echo "
    // Fix the node.js search paths that Electron cleared out.
    const Module = require('module');
    const originalResolveFilename = Module._resolveFilename;
    Module._resolveFilename = function (request, parent, isMain) {
      let paths = parent.paths;
      const ddcPath = \"$DDC_PATH/lib/js/common\";
      if (paths[0] != ddcPath) {
        paths.splice(0, 0, ddcPath, \"$LIBROOT\");
      }
      return originalResolveFilename(request, parent, isMain);
    };
    let sdk = require(\"dart_sdk\");
    let main = require(\"$BASENAME\").$BASENAME.main;
    sdk._isolate_helper.startRootIsolate(main, []);" \
    > $LIBROOT/$BASENAME.run.js
devtool $LIBROOT/$BASENAME.run.js
popd > /dev/null