import { ChatInputCommandInteraction, TextChannel } from "discord.js";
import { Config } from "@systems/config";
import { polls, updatePollMessage } from "@systems/poll";
import { nowFormatted, resolveMessage } from "@systems/messages";
import { getEffectiveCharacter } from "@systems/borrow";
import { replyAndDelete } from "@utils";
import { VoteEntry, UsermapEntry } from "@types";
import { UserRegistry } from "@registry/user-registry";

export async function handleSeed(interaction: ChatInputCommandInteraction): Promise<void> {
  const slot = [...polls.keys()][0];
  if (slot === undefined) return void replyAndDelete(interaction, "❌ No active poll found.");

  const state = polls.get(slot)!;
  if (state.locked || state.confirmed !== null) {
    return void replyAndDelete(interaction, "❌ Poll is locked or confirmed.");
  }

  const usermapEntries = UserRegistry.all();

  if (usermapEntries.length === 0) {
    return void replyAndDelete(interaction, "❌ No registered users found.");
  }

  const now    = nowFormatted();
  let injected = 0;
  let skipped  = 0;

  for (const { entry } of usermapEntries) {
    const userKey              = typeof entry === "string" ? entry : entry.file;
    const { char, borrowedFrom }  = getEffectiveCharacter(userKey);

    if (!char) { skipped++; continue; }

    const syntheticId = `injected:${userKey}`;
    if (state.yes.has(syntheticId) || state.no.has(syntheticId)) { skipped++; continue; }

    const publicMsg = resolveMessage("public", "yes", 1, userKey, null, null);

    const voteEntry: VoteEntry = {
      userKey,
      displayName:     char.name,
      characterName:   char.name,
      characterClass:  char.class,
      characterLevel:  char.level,
      characterNation: char.nation,
      borrowedFrom:    borrowedFrom ?? undefined,
      votedAt:         now,
      publicMessage:   publicMsg ?? undefined,
    };

    state.yes.set(syntheticId, voteEntry);
    injected++;
  }

  const channel = await interaction.client.channels.fetch(Config.get({ section: "channels", key: "poll" })) as TextChannel;
  await updatePollMessage(channel, slot);
  return void replyAndDelete(interaction, `✅ Seeded **${injected}** player(s)${skipped > 0 ? `, skipped **${skipped}** (no active character)` : ""}.`);
}