/* -------------------------------------------- */
/*  Hotbar Macros                               */
/* -------------------------------------------- */

/**
 * Create a Macro from an Item drop.
 * Get an existing item macro if one exists, otherwise create a new one.
 * @param {Object} data     The dropped data
 * @param {number} slot     The hotbar slot to use
 * @returns {Promise}
 */
export async function create5eMacro(data, slot) {
  if ( data.type !== "Item" ) return;
  if (!( "data" in data ) ) return ui.notifications.warn("You can only create macro buttons for owned Items");
  const item = data.data;

  // Create the macro command
  const command = `game.sw5e.rollItemMacro("${item.name}");`;
  let macro = game.macros.entities.find(m => (m.name === item.name) && (m.command === command));
  if ( !macro ) {
    macro = await Macro.create({
      name: item.name,
      type: "script",
      img: item.img,
      command: command,
      flags: {"sw5e.itemMacro": true}
    });
  }
  game.user.assignHotbarMacro(macro, slot);
  return false;
}

/* -------------------------------------------- */

/**
 * Create a Macro from an Item drop.
 * Get an existing item macro if one exists, otherwise create a new one.
 * @param {string} itemName
 * @return {Promise}
 */
export function rollItemMacro(itemName) {
  const speaker = ChatMessage.getSpeaker();
  let actor;
  if ( speaker.token ) actor = game.actors.tokens[speaker.token];
  if ( !actor ) actor = game.actors.get(speaker.actor);

  // Get matching items
  const items = actor ? actor.items.filter(i => i.name === itemName) : [];
  if ( items.length > 1 ) {
    ui.notifications.warn(`Your controlled Actor ${actor.name} has more than one Item with name ${itemName}. The first matched item will be chosen.`);
  } else if ( items.length === 0 ) {
    return ui.notifications.warn(`Your controlled Actor does not have an item named ${itemName}`);
  }
  const item = items[0];

  // Trigger the item roll
  return item.roll();
}