import { ChatInputCommandInteraction } from "discord.js";
import { cfg } from "../../systems/config";
import { resolveUser, hasOfficerRole } from "../../systems/users";
import { setCharacterNation, getActiveCharacter } from "../../systems/characters";
import { replyAndDelete } from "../../utils";
import { Nation } from "../../types";

export async function handleCharSetNation(interaction: ChatInputCommandInteraction): Promise<void> {
  const member    = await interaction.guild!.members.fetch(interaction.user.id);
  const isOfficer = hasOfficerRole(member, cfg("officerRoles"));
  const nameArg   = interaction.options.getString("name");
  const nation    = interaction.options.getString("nation", true) as Nation;
  const charName  = interaction.options.getString("char_name"); // optional, defaults to active

  let userKey: string | null;
  if (nameArg) {
    if (!isOfficer) return replyAndDelete(interaction, "❌ Only officers can manage other players' characters.");
    userKey = nameArg;
  } else {
    const user = await resolveUser(member);
    userKey = user.userKey;
  }

  if (!userKey) return replyAndDelete(interaction, "❌ You are not registered in the system.");

  const targetName = charName ?? getActiveCharacter(userKey)?.name;
  if (!targetName) return replyAndDelete(interaction, "❌ No active character found. Specify a character name.");

  const set = setCharacterNation(userKey, targetName, nation);
  if (!set) return replyAndDelete(interaction, `❌ No character named **${targetName}** found.`);

  return replyAndDelete(interaction, `✅ **«${targetName}»** nation set to **${nation}**.`);
}