#!/bin/bash
set -e  # stop on error
# set -x  # print commands as they are run

function dependency_check {
  if ! command -v $@ &> /dev/null; then
    echo "dependency error: $@ could not be found"
    exit 1
  fi
}

# COLORSCHEME="RichInfante"
OPENSCAD_BIN="/Applications/OpenSCAD.app/Contents/MacOS/OpenSCAD"
COLORSCHEME="RichInfante"

dependency_check "$OPENSCAD_BIN"

# macos theme install
if [ -d /Applications/OpenSCAD.app/Contents/Resources/color-schemes/render ]; then 
  if [ ! -f "/Applications/OpenSCAD.app/Contents/Resources/color-schemes/render/richinfante_theme.json" ]; then
    echo "Installing SCAD Theme..."
    cp "./scripts/scad_theme.json" "/Applications/OpenSCAD.app/Contents/Resources/color-schemes/render/richinfante_theme.json"
  fi
fi

# install if possible
if [ -d /usr/share/openscad/color-schemes/render ]; then
  if [ ! -f "/usr/share/openscad/color-schemes/render/richinfante_theme.json" ]; then
    echo "Installing SCAD Theme..."
    sudo cp "./scripts/scad_theme.json" "/usr/share/openscad/color-schemes/render/richinfante_theme.json"
  fi
fi

# Script to render stls
# Ref: https://3dprinting.stackexchange.com/questions/6046/how-can-i-create-png-image-files-from-stl-files
for JSON_FILE in src/content/prints/*.json; do
  STL_FILE="public/downloads/stls/$(jq -r '.filename' $JSON_FILE).stl"
  RENDER_ARGS="$(jq -r '.["render-args"] // empty' $JSON_FILE)"

  echo "Render stl: $STL_FILE"
  echo "Render args: $RENDER_ARGS"
  T=__tmp__

  echo "$RENDER_ARGS import(\"$STL_FILE\");" >$T

  # render thumb and image
  "$OPENSCAD_BIN" -o "public/img/stls/$(basename $STL_FILE .stl).png" --imgsize=512,512 --colorscheme=$COLORSCHEME $T
  "$OPENSCAD_BIN" -o "public/img/stls/$(basename $STL_FILE .stl)@thumbnail.png" --imgsize=128,128 --colorscheme=$COLORSCHEME $T
  rm $T
done