/* SPDX-FileCopyrightText: 2001-2002 NaN Holding BV. All rights reserved.
 *
 * SPDX-License-Identifier: GPL-2.0-or-later */

/** \file
 * \ingroup bke
 *
 * Contains code specific to the `Library` ID type.
 */

#include "CLG_log.h"

#include "MEM_guardedalloc.h"

/* all types are needed here, in order to do memory operations */
#include "DNA_ID.h"

#include "BLI_utildefines.h"

#include "BLI_blenlib.h"

#include "BLT_translation.h"

#include "BKE_bpath.h"
#include "BKE_idtype.h"
#include "BKE_lib_id.h"
#include "BKE_lib_query.h"
#include "BKE_library.h"
#include "BKE_main.h"
#include "BKE_main_namemap.h"
#include "BKE_packedFile.h"

/* Unused currently. */
// static CLG_LogRef LOG = {.identifier = "bke.library"};

struct BlendDataReader;

static void library_runtime_reset(Library *lib)
{
  if (lib->runtime.name_map) {
    BKE_main_namemap_destroy(&lib->runtime.name_map);
  }
}

static void library_free_data(ID *id)
{
  Library *library = (Library *)id;
  library_runtime_reset(library);
  if (library->packedfile) {
    BKE_packedfile_free(library->packedfile);
  }
}

static void library_foreach_id(ID *id, LibraryForeachIDData *data)
{
  Library *lib = (Library *)id;
  BKE_LIB_FOREACHID_PROCESS_IDSUPER(data, lib->parent, IDWALK_CB_NEVER_SELF);
}

static void library_foreach_path(ID *id, BPathForeachPathData *bpath_data)
{
  Library *lib = (Library *)id;

  /* FIXME: Find if we should respect #BKE_BPATH_FOREACH_PATH_SKIP_PACKED here, and if not, explain
   * why. */
  if (lib->packedfile !=
      nullptr /*&& (bpath_data->flag & BKE_BPATH_FOREACH_PATH_SKIP_PACKED) != 0 */)
  {
    return;
  }

  if (BKE_bpath_foreach_path_fixed_process(bpath_data, lib->filepath, sizeof(lib->filepath))) {
    BKE_library_filepath_set(bpath_data->bmain, lib, lib->filepath);
  }
}

static void library_blend_read_data(BlendDataReader * /*reader*/, ID *id)
{
  Library *lib = (Library *)id;
  lib->runtime.name_map = nullptr;
  /* This is runtime data. */
  lib->parent = nullptr;
  lib->tag = 0;
}

IDTypeInfo IDType_ID_LI = {
    /*id_code*/ ID_LI,
    /*id_filter*/ FILTER_ID_LI,
    /*main_listbase_index*/ INDEX_ID_LI,
    /*struct_size*/ sizeof(Library),
    /*name*/ "Library",
    /*name_plural*/ "libraries",
    /*translation_context*/ BLT_I18NCONTEXT_ID_LIBRARY,
    /*flags*/ IDTYPE_FLAGS_NO_COPY | IDTYPE_FLAGS_NO_LIBLINKING | IDTYPE_FLAGS_NO_ANIMDATA,
    /*asset_type_info*/ nullptr,

    /*init_data*/ nullptr,
    /*copy_data*/ nullptr,
    /*free_data*/ library_free_data,
    /*make_local*/ nullptr,
    /*foreach_id*/ library_foreach_id,
    /*foreach_cache*/ nullptr,
    /*foreach_path*/ library_foreach_path,
    /*owner_pointer_get*/ nullptr,

    /*blend_write*/ nullptr,
    /*blend_read_data*/ library_blend_read_data,
    /*blend_read_after_liblink*/ nullptr,

    /*blend_read_undo_preserve*/ nullptr,

    /*lib_override_apply_post*/ nullptr,
};

void BKE_library_filepath_set(Main *bmain, Library *lib, const char *filepath)
{
  /* in some cases this is used to update the absolute path from the
   * relative */
  if (lib->filepath != filepath) {
    STRNCPY(lib->filepath, filepath);
  }

  STRNCPY(lib->filepath_abs, filepath);

  /* Not essential but set `filepath_abs` is an absolute copy of value which
   * is more useful if its kept in sync. */
  if (BLI_path_is_rel(lib->filepath_abs)) {
    /* NOTE(@ideasman42): the file may be unsaved, in this case, setting the
     * `filepath_abs` on an indirectly linked path is not allowed from the
     * outliner, and its not really supported but allow from here for now
     * since making local could cause this to be directly linked.
     */
    /* Never make paths relative to parent lib - reading code (blenloader) always set *all*
     * `lib->filepath` relative to current main, not to their parent for indirectly linked ones. */
    const char *blendfile_path = BKE_main_blendfile_path(bmain);
    BLI_path_abs(lib->filepath_abs, blendfile_path);
  }
}