/*!
 * @file DgoWriter.cpp
 * Create a DGO from existing files.
 */

#include "DgoWriter.h"

#include "BinaryWriter.h"
#include "FileUtil.h"

#include "common/log/log.h"

void build_dgo(const DgoDescription& description, const std::string& output_prefix) {
  BinaryWriter writer;
  // dgo header
  writer.add<uint32_t>(description.entries.size());
  writer.add_cstr_len(description.dgo_name.c_str(), 60);

  for (auto& obj : description.entries) {
    // Ensure the directory exists
    const auto file_path =
        file_util::get_jak_project_dir() / "out" / output_prefix / "obj" / obj.file_name;
    if (!file_util::file_exists(file_path.string())) {
      lg::warn("tried to build a DGO with a file that doesn't exist: {}", file_path.string());
      continue;
    }
    auto obj_data = file_util::read_binary_file(file_path);
    // size
    writer.add<uint32_t>(obj_data.size());
    // name
    writer.add_str_len(obj.name_in_dgo, 60);
    // data
    writer.add_data(obj_data.data(), obj_data.size());
    // pad
    while (writer.get_size() & 0xf) {
      writer.add<uint8_t>(0);
    }
  }

  // Ensure the output directory exists
  const auto dgo_path =
      file_util::get_jak_project_dir() / "out" / output_prefix / "iso" / description.dgo_name;
  file_util::create_dir_if_needed_for_file(dgo_path);
  writer.write_to_file(dgo_path);
}