/*
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * as published by the Free Software Foundation; either version 2
 * of the License, or (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software Foundation,
 * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
 */

/** \file
 * \ingroup RNA
 */

#include "RNA_define.h"
#include "RNA_enum_types.h"
#include "RNA_types.h"

#include "BKE_workspace.h"

#include "ED_render.h"

#include "RE_engine.h"

#include "WM_api.h"
#include "WM_types.h"

#include "rna_internal.h"

#include "DNA_workspace_types.h"

#ifdef RNA_RUNTIME

#  include "BLI_listbase.h"

#  include "BKE_global.h"

#  include "DNA_object_types.h"
#  include "DNA_screen_types.h"
#  include "DNA_space_types.h"

#  include "RNA_access.h"

#  include "WM_toolsystem.h"

static void rna_window_update_all(Main *UNUSED(bmain),
                                  Scene *UNUSED(scene),
                                  PointerRNA *UNUSED(ptr))
{
  WM_main_add_notifier(NC_WINDOW, NULL);
}

void rna_workspace_screens_begin(CollectionPropertyIterator *iter, PointerRNA *ptr)
{
  WorkSpace *workspace = ptr->id.data;
  rna_iterator_listbase_begin(iter, BKE_workspace_layouts_get(workspace), NULL);
}

static PointerRNA rna_workspace_screens_item_get(CollectionPropertyIterator *iter)
{
  WorkSpaceLayout *layout = rna_iterator_listbase_get(iter);
  bScreen *screen = BKE_workspace_layout_screen_get(layout);

  return rna_pointer_inherit_refine(&iter->parent, &RNA_Screen, screen);
}

/* workspace.owner_ids */

static wmOwnerID *rna_WorkSpace_owner_ids_new(WorkSpace *workspace, const char *name)
{
  wmOwnerID *owner_id = MEM_callocN(sizeof(*owner_id), __func__);
  BLI_addtail(&workspace->owner_ids, owner_id);
  BLI_strncpy(owner_id->name, name, sizeof(owner_id->name));
  WM_main_add_notifier(NC_WINDOW, NULL);
  return owner_id;
}

static void rna_WorkSpace_owner_ids_remove(WorkSpace *workspace,
                                           ReportList *reports,
                                           PointerRNA *wstag_ptr)
{
  wmOwnerID *owner_id = wstag_ptr->data;
  if (BLI_remlink_safe(&workspace->owner_ids, owner_id) == false) {
    BKE_reportf(reports,
                RPT_ERROR,
                "wmOwnerID '%s' not in workspace '%s'",
                owner_id->name,
                workspace->id.name + 2);
    return;
  }

  MEM_freeN(owner_id);
  RNA_POINTER_INVALIDATE(wstag_ptr);

  WM_main_add_notifier(NC_WINDOW, NULL);
}

static void rna_WorkSpace_owner_ids_clear(WorkSpace *workspace)
{
  BLI_freelistN(&workspace->owner_ids);
  WM_main_add_notifier(NC_OBJECT | ND_MODIFIER | NA_REMOVED, workspace);
}

static bToolRef *rna_WorkSpace_tools_from_tkey(WorkSpace *workspace,
                                               const bToolKey *tkey,
                                               bool create)
{
  if (create) {
    bToolRef *tref;
    WM_toolsystem_ref_ensure(workspace, tkey, &tref);
    return tref;
  }
  return WM_toolsystem_ref_find(workspace, tkey);
}

static bToolRef *rna_WorkSpace_tools_from_space_view3d_mode(WorkSpace *workspace,
                                                            int mode,
                                                            bool create)
{
  return rna_WorkSpace_tools_from_tkey(workspace,
                                       &(bToolKey){
                                           .space_type = SPACE_VIEW3D,
                                           .mode = mode,
                                       },
                                       create);
}

static bToolRef *rna_WorkSpace_tools_from_space_image_mode(WorkSpace *workspace,
                                                           int mode,
                                                           bool create)
{
  return rna_WorkSpace_tools_from_tkey(workspace,
                                       &(bToolKey){
                                           .space_type = SPACE_IMAGE,
                                           .mode = mode,
                                       },
                                       create);
}

static bToolRef *rna_WorkSpace_tools_from_space_node(WorkSpace *workspace, bool create)
{
  return rna_WorkSpace_tools_from_tkey(workspace,
                                       &(bToolKey){
                                           .space_type = SPACE_NODE,
                                           .mode = 0,
                                       },
                                       create);
}

const EnumPropertyItem *rna_WorkSpace_tools_mode_itemf(bContext *UNUSED(C),
                                                       PointerRNA *ptr,
                                                       PropertyRNA *UNUSED(prop),
                                                       bool *UNUSED(r_free))
{
  bToolRef *tref = ptr->data;
  switch (tref->space_type) {
    case SPACE_VIEW3D:
      return rna_enum_context_mode_items;
    case SPACE_IMAGE:
      return rna_enum_space_image_mode_all_items;
  }
  return DummyRNA_DEFAULT_items;
}

static int rna_WorkSpaceTool_index_get(PointerRNA *ptr)
{
  bToolRef *tref = ptr->data;
  return (tref->runtime) ? tref->runtime->index : 0;
}

static int rna_WorkSpaceTool_has_datablock_get(PointerRNA *ptr)
{
  bToolRef *tref = ptr->data;
  return (tref->runtime) ? (tref->runtime->data_block[0] != '\0') : false;
}

static void rna_WorkSpaceTool_widget_get(PointerRNA *ptr, char *value)
{
  bToolRef *tref = ptr->data;
  strcpy(value, tref->runtime ? tref->runtime->gizmo_group : "");
}

static int rna_WorkSpaceTool_widget_length(PointerRNA *ptr)
{
  bToolRef *tref = ptr->data;
  return tref->runtime ? strlen(tref->runtime->gizmo_group) : 0;
}

#else /* RNA_RUNTIME */

static void rna_def_workspace_owner(BlenderRNA *brna)
{
  StructRNA *srna;
  PropertyRNA *prop;

  srna = RNA_def_struct(brna, "wmOwnerID", NULL);
  RNA_def_struct_sdna(srna, "wmOwnerID");
  RNA_def_struct_clear_flag(srna, STRUCT_UNDO);
  RNA_def_struct_ui_text(srna, "Work Space UI Tag", "");

  prop = RNA_def_property(srna, "name", PROP_STRING, PROP_NONE);
  RNA_def_property_ui_text(prop, "Name", "");
  RNA_def_struct_name_property(srna, prop);
}

static void rna_def_workspace_owner_ids(BlenderRNA *brna, PropertyRNA *cprop)
{
  StructRNA *srna;

  FunctionRNA *func;
  PropertyRNA *parm;

  RNA_def_property_srna(cprop, "wmOwnerIDs");
  srna = RNA_def_struct(brna, "wmOwnerIDs", NULL);
  RNA_def_struct_sdna(srna, "WorkSpace");
  RNA_def_struct_ui_text(srna, "WorkSpace UI Tags", "");

  /* add owner_id */
  func = RNA_def_function(srna, "new", "rna_WorkSpace_owner_ids_new");
  RNA_def_function_ui_description(func, "Add ui tag");
  parm = RNA_def_string(func, "name", "Name", 0, "", "New name for the tag");
  RNA_def_parameter_flags(parm, 0, PARM_REQUIRED);
  /* return type */
  parm = RNA_def_pointer(func, "owner_id", "wmOwnerID", "", "");
  RNA_def_function_return(func, parm);

  /* remove owner_id */
  func = RNA_def_function(srna, "remove", "rna_WorkSpace_owner_ids_remove");
  RNA_def_function_flag(func, FUNC_USE_REPORTS);
  RNA_def_function_ui_description(func, "Remove ui tag");
  /* owner_id to remove */
  parm = RNA_def_pointer(func, "owner_id", "wmOwnerID", "", "Tag to remove");
  RNA_def_parameter_flags(parm, PROP_NEVER_NULL, PARM_REQUIRED | PARM_RNAPTR);
  RNA_def_parameter_clear_flags(parm, PROP_THICK_WRAP, 0);

  /* clear all modifiers */
  func = RNA_def_function(srna, "clear", "rna_WorkSpace_owner_ids_clear");
  RNA_def_function_ui_description(func, "Remove all tags");
}

static void rna_def_workspace_tool(BlenderRNA *brna)
{
  StructRNA *srna;
  PropertyRNA *prop;

  srna = RNA_def_struct(brna, "WorkSpaceTool", NULL);
  RNA_def_struct_sdna(srna, "bToolRef");
  RNA_def_struct_clear_flag(srna, STRUCT_UNDO);
  RNA_def_struct_ui_text(srna, "Work Space Tool", "");

  prop = RNA_def_property(srna, "idname", PROP_STRING, PROP_NONE);
  RNA_def_property_ui_text(prop, "Identifier", "");
  RNA_def_struct_name_property(srna, prop);

  prop = RNA_def_property(srna, "index", PROP_INT, PROP_NONE);
  RNA_def_property_clear_flag(prop, PROP_EDITABLE);
  RNA_def_property_ui_text(prop, "Index", "");
  RNA_def_property_int_funcs(prop, "rna_WorkSpaceTool_index_get", NULL, NULL);

  prop = RNA_def_property(srna, "space_type", PROP_ENUM, PROP_NONE);
  RNA_def_property_enum_sdna(prop, NULL, "space_type");
  RNA_def_property_clear_flag(prop, PROP_EDITABLE);
  RNA_def_property_enum_items(prop, rna_enum_space_type_items);
  RNA_def_property_ui_text(prop, "Space Type", "");

  prop = RNA_def_property(srna, "mode", PROP_ENUM, PROP_NONE);
  RNA_def_property_enum_sdna(prop, NULL, "mode");
  RNA_def_property_enum_items(prop, DummyRNA_DEFAULT_items);
  RNA_def_property_enum_funcs(prop, NULL, NULL, "rna_WorkSpace_tools_mode_itemf");
  RNA_def_property_ui_text(prop, "Tool Mode", "");
  RNA_def_property_clear_flag(prop, PROP_EDITABLE);

  RNA_define_verify_sdna(0);
  prop = RNA_def_property(srna, "has_datablock", PROP_BOOLEAN, PROP_NONE);
  RNA_def_property_clear_flag(prop, PROP_EDITABLE);
  RNA_def_property_ui_text(prop, "Has Datablock", "");
  RNA_def_property_boolean_funcs(prop, "rna_WorkSpaceTool_has_datablock_get", NULL);
  RNA_define_verify_sdna(1);

  prop = RNA_def_property(srna, "widget", PROP_STRING, PROP_NONE);
  RNA_def_property_clear_flag(prop, PROP_EDITABLE);
  RNA_def_property_ui_text(prop, "Widget", "");
  RNA_def_property_string_funcs(
      prop, "rna_WorkSpaceTool_widget_get", "rna_WorkSpaceTool_widget_length", NULL);
  RNA_define_verify_sdna(1);

  RNA_api_workspace_tool(srna);
}

static void rna_def_workspace_tools(BlenderRNA *brna, PropertyRNA *cprop)
{
  StructRNA *srna;

  FunctionRNA *func;
  PropertyRNA *parm;

  RNA_def_property_srna(cprop, "wmTools");
  srna = RNA_def_struct(brna, "wmTools", NULL);
  RNA_def_struct_sdna(srna, "WorkSpace");
  RNA_def_struct_ui_text(srna, "WorkSpace UI Tags", "");

  /* add owner_id */
  func = RNA_def_function(
      srna, "from_space_view3d_mode", "rna_WorkSpace_tools_from_space_view3d_mode");
  RNA_def_function_ui_description(func, "");
  parm = RNA_def_enum(func, "mode", rna_enum_context_mode_items, 0, "", "");
  RNA_def_parameter_flags(parm, 0, PARM_REQUIRED);
  RNA_def_boolean(func, "create", false, "Create", "");
  /* return type */
  parm = RNA_def_pointer(func, "result", "WorkSpaceTool", "", "");
  RNA_def_function_return(func, parm);

  func = RNA_def_function(
      srna, "from_space_image_mode", "rna_WorkSpace_tools_from_space_image_mode");
  RNA_def_function_ui_description(func, "");
  parm = RNA_def_enum(func, "mode", rna_enum_space_image_mode_all_items, 0, "", "");
  RNA_def_parameter_flags(parm, 0, PARM_REQUIRED);
  RNA_def_boolean(func, "create", false, "Create", "");
  /* return type */
  parm = RNA_def_pointer(func, "result", "WorkSpaceTool", "", "");
  RNA_def_function_return(func, parm);

  func = RNA_def_function(srna, "from_space_node", "rna_WorkSpace_tools_from_space_node");
  RNA_def_function_ui_description(func, "");
  RNA_def_boolean(func, "create", false, "Create", "");
  /* return type */
  parm = RNA_def_pointer(func, "result", "WorkSpaceTool", "", "");
  RNA_def_function_return(func, parm);
}

static void rna_def_workspace(BlenderRNA *brna)
{
  StructRNA *srna;
  PropertyRNA *prop;

  srna = RNA_def_struct(brna, "WorkSpace", "ID");
  RNA_def_struct_sdna(srna, "WorkSpace");
  RNA_def_struct_ui_text(
      srna, "Workspace", "Workspace data-block, defining the working environment for the user");
  /* TODO: real icon, just to show something */
  RNA_def_struct_ui_icon(srna, ICON_WORKSPACE);

  prop = RNA_def_property(srna, "screens", PROP_COLLECTION, PROP_NONE);
  RNA_def_property_collection_sdna(prop, NULL, "layouts", NULL);
  RNA_def_property_struct_type(prop, "Screen");
  RNA_def_property_collection_funcs(prop,
                                    "rna_workspace_screens_begin",
                                    NULL,
                                    NULL,
                                    "rna_workspace_screens_item_get",
                                    NULL,
                                    NULL,
                                    NULL,
                                    NULL);
  RNA_def_property_ui_text(prop, "Screens", "Screen layouts of a workspace");

  prop = RNA_def_property(srna, "owner_ids", PROP_COLLECTION, PROP_NONE);
  RNA_def_property_struct_type(prop, "wmOwnerID");
  RNA_def_property_ui_text(prop, "UI Tags", "");
  rna_def_workspace_owner_ids(brna, prop);

  prop = RNA_def_property(srna, "tools", PROP_COLLECTION, PROP_NONE);
  RNA_def_property_collection_sdna(prop, NULL, "tools", NULL);
  RNA_def_property_struct_type(prop, "WorkSpaceTool");
  RNA_def_property_ui_text(prop, "Tools", "");
  rna_def_workspace_tools(brna, prop);

  prop = RNA_def_property(srna, "object_mode", PROP_ENUM, PROP_NONE);
  RNA_def_property_enum_items(prop, rna_enum_workspace_object_mode_items);
  RNA_def_property_ui_text(
      prop, "Object Mode", "Switch to this object mode when activating the workspace");

  /* Flags */
  prop = RNA_def_property(srna, "use_filter_by_owner", PROP_BOOLEAN, PROP_NONE);
  RNA_def_property_clear_flag(prop, PROP_ANIMATABLE);
  RNA_def_property_boolean_sdna(prop, NULL, "flags", WORKSPACE_USE_FILTER_BY_ORIGIN);
  RNA_def_property_ui_text(prop, "Use UI Tags", "Filter the UI by tags");
  RNA_def_property_update(prop, 0, "rna_window_update_all");

  RNA_api_workspace(srna);
}

void RNA_def_workspace(BlenderRNA *brna)
{
  rna_def_workspace_owner(brna);
  rna_def_workspace_tool(brna);

  rna_def_workspace(brna);
}

#endif /* RNA_RUNTIME */
