import { ChatInputCommandInteraction, SlashCommandBuilder } from "discord.js";
import { Config, SectionMap } from "../systems/config";
import { hasModeratorRole } from "../systems/users";
import { replyAndDelete } from "../utils";
import { Nation } from "@types";
import { handleSetLayout } from "@subcommands/tg-config/set-layout";
import { SetResultLayoutCommands }      from "@subcommands/tg-config/set-result-layout";
import { SetLeaderboardLayoutCommands } from "@subcommands/tg-config/set-leaderboard-layout";
import { SetLayoutCommands } from "@subcommands/tg-config/set-layout";

const ROLE_KEY_MAP: Record<"moderatorRoles" | "configRoles" | "tagRoles" | "sleepCheckRoles", keyof SectionMap["roles"]> = {
  moderatorRoles:    "moderator",
  configRoles:     "config",
  tagRoles:        "tag",
  sleepCheckRoles: "sleepCheck",
};

export function buildTgConfigCommand(): SlashCommandBuilder {
  const cmd = new SlashCommandBuilder()
    .setName("tg-config")
    .setDescription("Configure the TG bot");

  const strOpt = (name: string, desc: string, req = true) =>
    (o: any) => o.setName(name).setDescription(desc).setRequired(req);

  const decisionOpt = (o: any) => o.setName("decision").setDescription("yes or no").setRequired(true)
    .addChoices({ name: "Yes", value: "yes" }, { name: "No", value: "no" });

  const nationOpt = (o: any) => o.setName("nation").setDescription("Nation").setRequired(true)
    .addChoices({ name: "Capella", value: Nation.Capella }, { name: "Procyon", value: Nation.Procyon });

  const roleOpt   = strOpt("role",  "Role name");
  const rolesOpt  = strOpt("roles", "Comma-separated role names");

  // ── message group ──────────────────────────────────────────────────────────
  cmd.addSubcommandGroup((g) => g
    .setName("message")
    .setDescription("Configure bot messages")
    .addSubcommand((s) => s.setName("set-lock").setDescription("Set default lock message")
      .addStringOption(strOpt("message", "New lock message")))
    .addSubcommand((s) => s.setName("reset-lock").setDescription("Reset lock message to default"))
    .addSubcommand((s) => s.setName("set-confirm").setDescription("Set default confirm message")
      .addStringOption(decisionOpt)
      .addStringOption(strOpt("message", "New confirm message")))
    .addSubcommand((s) => s.setName("reset-confirm").setDescription("Reset confirm message to default")
      .addStringOption(decisionOpt))
  );

  // ── roles group ────────────────────────────────────────────────────────────
  cmd.addSubcommandGroup((g) => g
    .setName("roles")
    .setDescription("Configure bot roles")
    .addSubcommand((s) => s.setName("set-moderator").setDescription("Set moderator roles (comma-separated)").addStringOption(rolesOpt))
    .addSubcommand((s) => s.setName("add-moderator").setDescription("Add a moderator role").addStringOption(roleOpt))
    .addSubcommand((s) => s.setName("remove-moderator").setDescription("Remove a moderator role").addStringOption(roleOpt))
    .addSubcommand((s) => s.setName("reset-moderator").setDescription("Reset moderator roles to default"))
    .addSubcommand((s) => s.setName("set-config").setDescription("Set config roles (comma-separated)").addStringOption(rolesOpt))
    .addSubcommand((s) => s.setName("add-config").setDescription("Add a config role").addStringOption(roleOpt))
    .addSubcommand((s) => s.setName("remove-config").setDescription("Remove a config role").addStringOption(roleOpt))
    .addSubcommand((s) => s.setName("reset-config").setDescription("Reset config roles to default"))
    .addSubcommand((s) => s.setName("set-tag").setDescription("Set tag roles (comma-separated)").addStringOption(rolesOpt))
    .addSubcommand((s) => s.setName("add-tag").setDescription("Add a tag role").addStringOption(roleOpt))
    .addSubcommand((s) => s.setName("remove-tag").setDescription("Remove a tag role").addStringOption(roleOpt))
    .addSubcommand((s) => s.setName("reset-tag").setDescription("Reset tag roles to default"))
    .addSubcommand((s) => s.setName("set-sleep-check").setDescription("Set sleep-check roles (comma-separated)").addStringOption(rolesOpt))
    .addSubcommand((s) => s.setName("add-sleep-check").setDescription("Add a sleep-check role").addStringOption(roleOpt))
    .addSubcommand((s) => s.setName("remove-sleep-check").setDescription("Remove a sleep-check role").addStringOption(roleOpt))
    .addSubcommand((s) => s.setName("reset-sleep-check").setDescription("Reset sleep-check roles to default (none)"))
  );

  // ── channel group ──────────────────────────────────────────────────────────
  cmd.addSubcommandGroup((g) => g
    .setName("channel")
    .setDescription("Configure bot channels")
    .addSubcommand((s) => s.setName("set-poll").setDescription("Set poll channel")
      .addChannelOption((o) => o.setName("channel").setDescription("Channel").setRequired(true)))
    .addSubcommand((s) => s.setName("set-results").setDescription("Set results channel")
      .addChannelOption((o) => o.setName("channel").setDescription("Channel").setRequired(true)))
    .addSubcommand((s) => s.setName("set-score").setDescription("Set score channel")
      .addChannelOption((o) => o.setName("channel").setDescription("Channel").setRequired(true)))
  );

  // ── slot group ─────────────────────────────────────────────────────────────
  cmd.addSubcommandGroup((g) => g
    .setName("slot")
    .setDescription("Configure TG slots")
    .addSubcommand((s) => s.setName("add").setDescription("Add a TG slot")
      .addIntegerOption((o) => o.setName("hour").setDescription("TG hour (0-23)").setRequired(true))
      .addStringOption(strOpt("poll_opens", "Poll open time e.g. 10:00")))
    .addSubcommand((s) => s.setName("remove").setDescription("Remove a TG slot")
      .addIntegerOption((o) => o.setName("hour").setDescription("TG hour").setRequired(true)))
  );

  // ── wrank group ────────────────────────────────────────────────────────────
  cmd.addSubcommandGroup((g) => g
    .setName("wrank")
    .setDescription("Configure W.Rank settings")
    .addSubcommand((s) => s.setName("set-goal").setDescription("Set W.Rank TG goal")
      .addIntegerOption((o) => o.setName("goal").setDescription("Number of TGs").setRequired(true)))
    .addSubcommand((s) => s.setName("set-post-on-reset").setDescription("Post leaderboard on weekly reset?")
      .addBooleanOption((o) => o.setName("enabled").setDescription("true/false").setRequired(true)))
  );

  // ── tg group ───────────────────────────────────────────────────────────────
  cmd.addSubcommandGroup((g) => g
    .setName("tg")
    .setDescription("Configure TG settings")
    .addSubcommand((s) => s.setName("set-score-window").setDescription("Set score submission window (hours)")
      .addNumberOption((o) => o.setName("hours").setDescription("Hours").setRequired(true)))
    .addSubcommand((s) => s.setName("set-duration").setDescription("Set TG duration (minutes)")
      .addIntegerOption((o) => o.setName("minutes").setDescription("Minutes").setRequired(true)))
    .addSubcommand((s) => s.setName("set-no-display").setDescription("Where to show No voters")
      .addStringOption((o) => o.setName("mode").setDescription("inline or messages").setRequired(true)
        .addChoices({ name: "Inline under nation", value: "inline" }, { name: "Messages section only", value: "messages" })))
    .addSubcommand((s) => s.setName("set-nation-source").setDescription("Set source of truth nation")
      .addStringOption(nationOpt))
    .addSubcommand((s) => s.setName("set-sleep-check-minutes").setDescription("Minutes before TG to run the sleep check (default 20)")
      .addIntegerOption((o) => o.setName("minutes").setDescription("Minutes before TG start").setRequired(true)))
    .addSubcommand((s) => s.setName("set-max-stat-value").setDescription("Sanity ceiling for ATK/DEF/Heal shorthand input (default 50,000,000)")
      .addIntegerOption((o) => o.setName("value").setDescription("Max allowed value").setRequired(true)))
  );

  // ── poll group ───────────────────────────────────────────────────────────────
  cmd.addSubcommandGroup((g) => g
  .setName("poll")
  .setDescription("Configure Poll Settings")
  .addSubcommand((s) => s
    .setName("set-layout")
    .setDescription("Change the poll display layout")
    .addStringOption((o) => o
      .setName("layout")
      .setDescription("Layout name")
      .setRequired(true)
      .setAutocomplete(true)
    ))
  );

    // In poll group or as separate groups:
  cmd.addSubcommand((s) => s
    .setName("set-result-layout")
    .setDescription("Change the TG result display layout")
    .addStringOption((o) => o
      .setName("layout").setDescription("Layout name")
      .setRequired(true).setAutocomplete(true)
    )
  );
  cmd.addSubcommand((s) => s
    .setName("set-leaderboard-layout")
    .setDescription("Change the leaderboard display layout")
    .addStringOption((o) => o
      .setName("layout").setDescription("Layout name")
      .setRequired(true).setAutocomplete(true)
    )
  );

  return cmd;
}

export async function handleTgConfigCommand(interaction: ChatInputCommandInteraction): Promise<void> {
  // discord.js types CommandInteractionOptionResolver with Omit<> which hides
  // methods like getString/getInteger at the type level despite them existing at runtime
   // Needs to be cast as any, since Discord.js has issues with the type
  const options = interaction.options as any;

  const member = await interaction.guild!.members.fetch(interaction.user.id);
  if (!hasModeratorRole(member, Config.get({ section: "roles", key: "config" }))) {
    return void replyAndDelete(interaction, "❌ You don't have permission to use this command.");
  }

  const group = options.getSubcommandGroup();
  const sub   = options.getSubcommand();

  const roleSubcommand = (cfgKey: "moderatorRoles" | "configRoles" | "tagRoles" | "sleepCheckRoles", action: string) => {
    const key = ROLE_KEY_MAP[cfgKey];
    if (action === "set") {
      const roles = options.getString("roles", true).split(",").map((r: string) => r.trim()).filter(Boolean);
      Config.set({ section: "roles", key, value: roles });
      return void replyAndDelete(interaction, `✅ Roles updated: ${roles.join(", ")}`);
    }
    if (action === "add") {
      const role  = options.getString("role", true).trim();
      const roles = [...new Set([...Config.get({ section: "roles", key }), role])];
      Config.set({ section: "roles", key, value: roles });
      return void replyAndDelete(interaction, `✅ Added **${role}**. Current: ${roles.join(", ")}`);
    }
    if (action === "remove") {
      const role  = options.getString("role", true).trim();
      const roles = Config.get({ section: "roles", key }).filter((r: string) => r !== role);
      Config.set({ section: "roles", key, value: roles });
      return void replyAndDelete(interaction, `✅ Removed **${role}**. Current: ${roles.join(", ")}`);
    }
    if (action === "reset") {
      Config.reset({ section: "roles", key });
      return void replyAndDelete(interaction, `✅ Roles reset to default.`);
    }
  };

  // ── message ────────────────────────────────────────────────────────────────
  if (group === "message") {
    if (sub === "set-lock")   { Config.set({ section: "poll", key: "lockMessage", value: options.getString("message", true) }); return void replyAndDelete(interaction, "✅ Lock message updated."); }
    if (sub === "reset-lock") { Config.reset({ section: "poll", key: "lockMessage" }); return void replyAndDelete(interaction, "✅ Lock message reset."); }
    if (sub === "set-confirm") {
      const d   = options.getString("decision", true);
      const key = d === "yes" ? "confirmYes" : "confirmNo";
      Config.set({ section: "poll", key, value: options.getString("message", true) });
      return void replyAndDelete(interaction, `✅ Confirm ${d} message updated.`);
    }
    if (sub === "reset-confirm") {
      const d   = options.getString("decision", true);
      const key = d === "yes" ? "confirmYes" : "confirmNo";
      Config.reset({ section: "poll", key });
      return void replyAndDelete(interaction, `✅ Confirm ${d} message reset.`);
    }
  }

  // ── roles ──────────────────────────────────────────────────────────────────
  if (group === "roles") {
    if (sub === "set-moderator")    return roleSubcommand("moderatorRoles", "set");
    if (sub === "add-moderator")    return roleSubcommand("moderatorRoles", "add");
    if (sub === "remove-moderator") return roleSubcommand("moderatorRoles", "remove");
    if (sub === "reset-moderator")  return roleSubcommand("moderatorRoles", "reset");
    if (sub === "set-config")     return roleSubcommand("configRoles",  "set");
    if (sub === "add-config")     return roleSubcommand("configRoles",  "add");
    if (sub === "remove-config")  return roleSubcommand("configRoles",  "remove");
    if (sub === "reset-config")   return roleSubcommand("configRoles",  "reset");
    if (sub === "set-tag")        return roleSubcommand("tagRoles",     "set");
    if (sub === "add-tag")        return roleSubcommand("tagRoles",     "add");
    if (sub === "remove-tag")     return roleSubcommand("tagRoles",     "remove");
    if (sub === "reset-tag")      return roleSubcommand("tagRoles",     "reset");
    if (sub === "set-sleep-check")    return roleSubcommand("sleepCheckRoles", "set");
    if (sub === "add-sleep-check")    return roleSubcommand("sleepCheckRoles", "add");
    if (sub === "remove-sleep-check") return roleSubcommand("sleepCheckRoles", "remove");
    if (sub === "reset-sleep-check")  return roleSubcommand("sleepCheckRoles", "reset");
  }

  // ── channel ────────────────────────────────────────────────────────────────
  if (group === "channel") {
    if (sub === "set-poll")    { Config.set({ section: "channels", key: "poll",    value: options.getChannel().id }); return void replyAndDelete(interaction, "✅ Poll channel updated."); }
    if (sub === "set-results") { Config.set({ section: "channels", key: "results", value: options.getChannel().id }); return void replyAndDelete(interaction, "✅ Results channel updated."); }
    if (sub === "set-score")   { Config.set({ section: "channels", key: "score",   value: options.getChannel().id }); return void replyAndDelete(interaction, "✅ Score channel updated."); }
  }

  // ── slot ───────────────────────────────────────────────────────────────────
  if (group === "slot") {
    if (sub === "add") {
      const hour      = options.getInteger("hour", true);
      const pollOpens = options.getString("poll_opens", true);
      const slots     = Config.get({ section: "poll", key: "slots" });
      if (slots.some((s) => s.tgHour === hour)) return void replyAndDelete(interaction, `❌ Slot ${hour}:00 already exists.`);
      slots.push({ tgHour: hour, pollOpens, closesAfter: Config.get({ section: "tg", key: "durationMinutes" }), active: true });
      Config.set({ section: "poll", key: "slots", value: slots });
      return void replyAndDelete(interaction, `✅ Slot ${hour}:00 added (poll opens at ${pollOpens}).`);
    }
    if (sub === "remove") {
      const hour  = options.getInteger("hour", true);
      const slots = Config.get({ section: "poll", key: "slots" }).filter((s) => s.tgHour !== hour);
      Config.set({ section: "poll", key: "slots", value: slots });
      return void replyAndDelete(interaction, `✅ Slot ${hour}:00 removed.`);
    }
  }

  // ── wrank ──────────────────────────────────────────────────────────────────
  if (group === "wrank") {
    if (sub === "set-goal")          { Config.set({ section: "wrank", key: "goal",        value: options.getInteger("goal", true)! });    return void replyAndDelete(interaction, "✅ W.Rank goal updated."); }
    if (sub === "set-post-on-reset") { Config.set({ section: "wrank", key: "postOnReset", value: options.getBoolean("enabled", true)! }); return void replyAndDelete(interaction, "✅ W.Rank post on reset updated."); }
  }

  // ── tg ─────────────────────────────────────────────────────────────────────
  if (group === "tg") {
    if (sub === "set-score-window") { Config.set({ section: "tg",   key: "scoreWindowHours", value: options.getNumber("hours", true)! });    return void replyAndDelete(interaction, "✅ Score window updated."); }
    if (sub === "set-duration")     { Config.set({ section: "tg",   key: "durationMinutes",  value: options.getInteger("minutes", true)! }); return void replyAndDelete(interaction, "✅ TG duration updated."); }
    if (sub === "set-no-display")   { Config.set({ section: "poll", key: "showNoInNationField", value: options.getString("mode", true) === "inline" }); return void replyAndDelete(interaction, "✅ No voter display updated."); }
    if (sub === "set-nation-source"){ Config.set({ section: "nation", key: "source", value: options.getString("nation", true) as Nation }); return void replyAndDelete(interaction, "✅ Nation source updated."); }
    if (sub === "set-sleep-check-minutes") {
      Config.set({ section: "poll", key: "sleepCheckMinutesBefore", value: options.getInteger("minutes", true)! });
      return void replyAndDelete(interaction, "✅ Sleep check timing updated. Restart the bot (or wait for the next scheduled reload) for the new cron time to take effect.");
    }
    if (sub === "set-max-stat-value") {
      const value = options.getInteger("value", true)!;
      Config.set({ section: "tg", key: "maxStatValue", value });
      return void replyAndDelete(interaction, `✅ ATK/DEF/Heal sanity ceiling set to ${value.toLocaleString()}.`);
    }
  }

  if (group === "poll") {
    if (sub === "set-layout") return handleSetLayout(interaction);
  }

  if (group === null && sub === "set-result-layout")      return SetResultLayoutCommands.handle(interaction);
  if (group === null && sub === "set-leaderboard-layout") return SetLeaderboardLayoutCommands.handle(interaction);
  if (group === null && sub === "set-layout")             return SetLayoutCommands.handle(interaction);
}