#include "editor.h"
#include "../game/world/bsp.h"

void gui_editorwindow_draw_fn( void* ptr ) {
  GUI_EDITORWINDOW* wnd = (GUI_EDITORWINDOW*)ptr;

  CLR clr = gui_is_fg_window( wnd )? ui_clr.border : ui_clr.border_inactive;
  gui_draw_frect( wnd->x, wnd->y, wnd->w, wnd->h, clr );
  gui_draw_frect( wnd->x + 1, wnd->y + 1, wnd->w - 2, wnd->h - 2, ui_clr.bg );

  wnd->children.each( fn( GUI_BASE** ptr ) {
    GUI_BASE* it = *ptr;
    if( !it->enabled ) return;

    if( it->draw_fn ) it->draw_fn( it );
    else dlog( "gui_editorwindow_draw_fn(): child %p has no draw_fn", it );
  } );
}

GUI_EDITORWINDOW* gui_editorwindow_create( I32 w, I32 h ) {
  GUI_EDITORWINDOW* wnd = new GUI_EDITORWINDOW;
  wnd->x = 0;
  wnd->y = 0;
  wnd->w = w;
  wnd->h = h;
  wnd->locked = 1;
  wnd->draw_fn = gui_editorwindow_draw_fn;
  strcpy( wnd->name, "EDITORWINDOW" );

  _gui.windows.push( wnd );
  gui_set_window( wnd );

  gui_set_view( 0 );
  gui_view( 1, 1, w - 2, h - 2 );
  return wnd;
}

GUI_EDITORWINDOW* gui_editorwindow( I32 w, I32 h ) {
  GUI_EDITORWINDOW* wnd = gui_editorwindow_create( w, h );

  gui_title( "ray2Dscape (level editor)" );

  GAME_EDITOR* e = editor;
  LIST<GUI_LIST_ENTRY>* map_list = editor_get_map_list( e );

  gui_list( wnd->w / 2 - 100, 40, 200, 200, "map list", map_list, &editor->gui.map_select );
  gui_button( wnd->w / 2 - 100, 260, 95, 25, "new map", editor_new_map_cb );
  gui_button( wnd->w / 2 + 5, 260, 95, 25, "load map", editor_load_map_cb );
  return wnd;
}

void editor_update_active_tool_label( GAME_EDITOR* e ) {
  char lstr[256];
  switch( e->tool ) {
    case EDITOR_TOOL_SELECT:
      sprintf( lstr, "current tool: select" ); break;
    case EDITOR_TOOL_WALL:
      sprintf( lstr, "current tool: wall" ); break;
    case EDITOR_TOOL_POLY:
      sprintf( lstr, "current tool: polygon" ); break;
    case EDITOR_TOOL_SPRITE:
      sprintf( lstr, "current tool: sprite" ); break;
    case EDITOR_TOOL_ENT:
      sprintf( lstr, "current tool: entity" ); break;
    default:
      sprintf( lstr, "current tool: none" ); break;
  }

  strcpy( e->gui.toollabel->name, lstr );
}

void editor_update_properties_column( GAME_EDITOR* e ) {
  GAME_EDITOR::EDITOR_GUI* egui = &e->gui;
  gui_editor_propview_update( egui->props );
}

void editor_create_properties_column( GAME_EDITOR* e ) {
  GAME_EDITOR::EDITOR_GUI* egui = &e->gui;
  gui_button( 10, 10, 145, 20, "back", pfn( void* ) { editor_close( editor ); } );
  gui_button( 165, 10, 145, 20, "save", pfn( void* ) { editor_save_map( editor ); } );

  egui->props = gui_editor_propview( 10, 38, 300, 460 );
  gui_editor_propview_select( egui->props, e->map, EDITOR_SELECT_ORIGIN );
}

void editor_create_game_view_column( GAME_EDITOR* e ) {
  GAME_EDITOR::EDITOR_GUI* egui = &e->gui;
  I32 x = 320, y = 10;

  gui_button( x, y, 229, 20, "2d view", pfn( void* ptr ) {
    editor->gui.v3d->enabled = 0;
    editor->gui.v2d->enabled = 1;
  } );

  gui_button( x + 239, y, 229, 20, "3d view", pfn( void* ptr ) {
    editor->gui.v3d->enabled = 1;
    editor->gui.v2d->enabled = 0;
  } );

  y += 28;
  egui->v2d = gui_editor_2dview( x, y, 468, 370 );
  egui->v3d = gui_editor_3dview( x, y, 468, 370 );
  egui->v2d->enabled = 0;
  egui->v3d->enabled = 1;
}

void settool( U8 t ) { editor->tool = t; editor_update_active_tool_label( editor ); }
void editor_create_tools_row( GAME_EDITOR* e ) {
  I32 x = 10, y = 520;

  e->gui.toollabel = gui_label( x, y, "current tool: none" );
  y += 16;
  gui_button( x, y, 80, 20, "none", pfn( void* ) { settool( EDITOR_TOOL_NONE ); } ); x += 90;
  gui_button( x, y, 80, 20, "select", pfn( void* ) { settool( EDITOR_TOOL_SELECT ); } ); x += 90;
  gui_button( x, y, 80, 20, "wall", pfn( void* ) { settool( EDITOR_TOOL_WALL ); } ); x += 90;

  x = 10; y += 28;
  gui_button( x, y, 80, 20, "polygon", pfn( void* ) { settool( EDITOR_TOOL_POLY ); } ); x += 90;
  gui_button( x, y, 80, 20, "sprite", pfn( void* ) { settool( EDITOR_TOOL_SPRITE ); } ); x += 90;
  gui_button( x, y, 80, 20, "entity", pfn( void* ) { settool( EDITOR_TOOL_ENT ); } ); x += 90;
  editor_update_active_tool_label( e );
}

void editor_create_map_view( GAME_EDITOR* e ) {
  if( !e->map ) {
    dlog( "editor_create_map_views() : no map loaded\n" );
    return;
  }

  GUI_EDITORWINDOW* w = e->wnd;
  w->children.each( fn( GUI_BASE** ptr ) {
    gui_free( *ptr );
  } );
  w->children.clear();

  gui_set_window( w );
  gui_set_view( 0 );

  gui_view( 1, 1, w->w - 2, w->h - 2 );

  editor_create_properties_column( e );
  editor_create_game_view_column( e );
  editor_create_tools_row( e );
}

void close_new_map_popup( void* ) {
  gui_push_callback( pfn( void* ) {
    GUI_WINDOW* popup = editor->gui.new_map_popup;
    if( !popup )
      return;

    gui_free( popup );
    editor->gui.new_map_popup = 0;
  } );
}

void editor_new_map_cb( void* ptr ) {
  if( editor->gui.new_map_popup ) return;

  GUI_WINDOW* cwnd = gui_get_window();
  GUI_VIEW* view = gui_get_view();

  I32 wx = 250;
  I32 wy = 140;
  I32 ww = 300;
  I32 wh = 200;

  editor->gui.new_map_popup = gui_window( wx, wy, ww, wh );
  gui_title( "new map" );
  GUI_TEXTBOX* tb = gui_textbox( 10, 20, ww - 20, 20, "name", 32 );
  tb->active = 1;

  gui_button( ww - 50 - 70, wh - 20 - 10, 50, 20, "ok", pfn( void* ptr ) {
    GUI_BUTTON* btn = (GUI_BUTTON*)ptr;
    GUI_TEXTBOX* name = (GUI_TEXTBOX*)gui_find_node( btn->parent, "name" );
    if( !name )
      return;

    editor_new_map( editor, name->value );
    close_new_map_popup( 0 );
  } );

  gui_button( ww - 50 - 10, wh - 20 - 10, 50, 20, "cancel", close_new_map_popup );

  gui_set_window( cwnd );
  gui_set_view( view );
}

void editor_load_map_cb( void* ptr ) {
  GUI_LIST* list = (GUI_LIST*)gui_find_node( editor->wnd, "map list" );

  GUI_LIST_ENTRY* e = gui_list_get_selected( list );
  if( !e )
    return;

  char full_path[256];
  sprintf( full_path, "../assets/maps/%s", e->title );

  if( editor->map )
    editor_close( editor );

  editor_load_map( editor, full_path );
}