Momentum-Apps/scenes/nfc_playlist_scene_nfc_move_item.c

#include "../nfc_playlist.h"

typedef enum {
   NfcPlaylistNfcMoveItem_TargetSelector,
   NfcPlaylistNfcMoveItem_DestinationSelector,
   NfcPlaylistNfcMoveItem_MoveItem
} NfcPlaylistNfcMoveItemMenuSelection;

uint8_t selected_target;
uint8_t selected_destination;

void nfc_playlist_nfc_move_item_menu_callback(void* context, uint32_t index) {
   NfcPlaylist* nfc_playlist = context;
   scene_manager_handle_custom_event(nfc_playlist->scene_manager, index);
}

void nfc_playlist_nfc_move_item_options_change_callback(VariableItem* item) {
   NfcPlaylist* nfc_playlist = variable_item_get_context(item);

   uint8_t current_option = variable_item_list_get_selected_item_index(nfc_playlist->variable_item_list);
   uint8_t option_value_index = variable_item_get_current_value_index(item);

   switch(current_option) {
      case NfcPlaylistNfcMoveItem_TargetSelector: {
         selected_target = option_value_index + 1;
         FuriString* tmp_str = furi_string_alloc_printf("%d", selected_target);
         variable_item_set_current_value_text(item, furi_string_get_cstr(tmp_str));
         furi_string_free(tmp_str);
         break;
      }
      case NfcPlaylistNfcMoveItem_DestinationSelector: {
         selected_destination = option_value_index + 1;
         FuriString* tmp_str = furi_string_alloc_printf("%d", selected_destination);
         variable_item_set_current_value_text(item, furi_string_get_cstr(tmp_str));
         furi_string_free(tmp_str);
         break;
      }
      default:
         break;
   }

   variable_item_set_locked(variable_item_list_get(nfc_playlist->variable_item_list, NfcPlaylistNfcMoveItem_MoveItem), (selected_target == selected_destination), "Target\nand\nDestination\nare the same");
}

void nfc_playlist_nfc_move_item_scene_on_enter(void* context) {
   NfcPlaylist* nfc_playlist = context;

   selected_target = 1;
   selected_destination = 1;

   variable_item_list_set_header(nfc_playlist->variable_item_list, "Move NFC Item");

   VariableItem* target_selector = variable_item_list_add(
      nfc_playlist->variable_item_list,
      "Select Target",
      nfc_playlist->settings.playlist_length,
      nfc_playlist_nfc_move_item_options_change_callback,
      nfc_playlist);
   variable_item_set_current_value_index(target_selector, 0);
   variable_item_set_current_value_text(target_selector, "1");

   VariableItem* destination_selector = variable_item_list_add(
      nfc_playlist->variable_item_list,
      "Select Destination",
      nfc_playlist->settings.playlist_length,
      nfc_playlist_nfc_move_item_options_change_callback,
      nfc_playlist);
   variable_item_set_current_value_index(destination_selector, 0);
   variable_item_set_current_value_text(destination_selector, "1");

   VariableItem* move_button = variable_item_list_add(nfc_playlist->variable_item_list, "Move Item", 0, NULL, NULL);
   variable_item_set_locked(move_button, (selected_target == selected_destination), "Target\nand\nDestination\nare the same");

   variable_item_list_set_enter_callback(nfc_playlist->variable_item_list, nfc_playlist_nfc_move_item_menu_callback, nfc_playlist);

   view_dispatcher_switch_to_view(nfc_playlist->view_dispatcher, NfcPlaylistView_VariableItemList);
}

bool nfc_playlist_nfc_move_item_scene_on_event(void* context, SceneManagerEvent event) {
   NfcPlaylist* nfc_playlist = context;
   bool consumed = false;

   if(event.type == SceneManagerEventTypeCustom) {
      switch(event.event) {
         case NfcPlaylistNfcMoveItem_MoveItem: {
            Storage* storage = furi_record_open(RECORD_STORAGE);
            Stream* stream = file_stream_alloc(storage);

            if(file_stream_open(stream, furi_string_get_cstr(nfc_playlist->settings.playlist_path), FSAM_READ_WRITE, FSOM_OPEN_EXISTING)) {
               FuriString* tmp_target_str = furi_string_alloc();
               FuriString* line = furi_string_alloc();
               uint8_t counter = 0;

               while(stream_read_line(stream, line)) {
                  counter++;
                  if(counter == selected_target) {
                     furi_string_trim(line);
                     furi_string_cat_printf(tmp_target_str, "%s", furi_string_get_cstr(line));
                     stream_rewind(stream);
                     counter = 0;
                     break;
                  }
               }

               FuriString* tmp_new_order_str = furi_string_alloc();

               while(stream_read_line(stream, line)) {
                  counter++;

                  if(counter == selected_target) {
                     continue;
                  }

                  if(!furi_string_empty(tmp_new_order_str)) {
                     furi_string_cat_printf(tmp_new_order_str, "%s", "\n");
                  }

                  furi_string_trim(line);

                  if(counter == selected_destination) {
                     if(counter == 1) {
                        furi_string_cat_printf(tmp_new_order_str, "%s\n%s", furi_string_get_cstr(tmp_target_str), furi_string_get_cstr(line));
                     } else {
                        furi_string_cat_printf(tmp_new_order_str, "%s\n%s", furi_string_get_cstr(line), furi_string_get_cstr(tmp_target_str));
                     }
                     furi_string_free(tmp_target_str);
                  } else {
                     furi_string_cat_printf(tmp_new_order_str, "%s", furi_string_get_cstr(line));
                  }
               }

               furi_string_free(line);
               stream_clean(stream);
               stream_write_string(stream, tmp_new_order_str);
               furi_string_free(tmp_new_order_str);
               file_stream_close(stream);
            }

            stream_free(stream);
            furi_record_close(RECORD_STORAGE);

            consumed = true;
            break;
         }
         default:
            break;
      }
   }

   return consumed;
}

void nfc_playlist_nfc_move_item_scene_on_exit(void* context) {
   NfcPlaylist* nfc_playlist = context;
   variable_item_list_reset(nfc_playlist->variable_item_list);
}