#!/usr/bin/env bash

set -euo pipefail

ROOT_DIR="$(cd "$(dirname "$0")" && pwd)"
cd "$ROOT_DIR"

if ! command -v glslc >/dev/null 2>&1; then
  echo "error: glslc not found. Install with: brew install shaderc"
  exit 1
fi

if ! command -v odin >/dev/null 2>&1; then
  echo "error: odin not found. Install with: brew install odin"
  exit 1
fi

if [[ -z "${VK_ICD_FILENAMES:-}" ]]; then
  if [[ -f "/opt/homebrew/etc/vulkan/icd.d/MoltenVK_icd.json" ]]; then
    export VK_ICD_FILENAMES="/opt/homebrew/etc/vulkan/icd.d/MoltenVK_icd.json"
  elif [[ -f "/opt/homebrew/Cellar/molten-vk/1.4.1/etc/vulkan/icd.d/MoltenVK_icd.json" ]]; then
    export VK_ICD_FILENAMES="/opt/homebrew/Cellar/molten-vk/1.4.1/etc/vulkan/icd.d/MoltenVK_icd.json"
  fi
fi

if [[ -z "${DYLD_FALLBACK_LIBRARY_PATH:-}" ]]; then
  export DYLD_FALLBACK_LIBRARY_PATH="/opt/homebrew/lib"
elif [[ ":${DYLD_FALLBACK_LIBRARY_PATH}:" != *":/opt/homebrew/lib:"* ]]; then
  export DYLD_FALLBACK_LIBRARY_PATH="/opt/homebrew/lib:${DYLD_FALLBACK_LIBRARY_PATH}"
fi

mkdir -p "bin"

glslc -fshader-stage=vert "shaders/cubes.vert.glsl" -o "shaders/cubes.vert.spv"
glslc -fshader-stage=frag "shaders/cubes.frag.glsl" -o "shaders/cubes.frag.spv"

odin build src -out:bin/cubes_vulkan
./bin/cubes_vulkan