/**
 * Ticket action row builder – Close, Claim, Escalate (if tier < 3), Deescalate (if tier >= 2).
 * Used by handlers/buttons.js and handlers/commands.js.
 */
const { ActionRowBuilder, ButtonBuilder, ButtonStyle, PermissionFlagsBits } = require('discord.js');
const { CONFIG } = require('../config');

/**
 * permissionOverwrites for a Discord-originated ticket channel: deny @everyone,
 * allow the creating user and the staff ping role. Used by the button and
 * context-menu creation paths (the email/gmail path differs — no Discord
 * creator — and builds its own overwrites).
 * @param {import('discord.js').Guild} guild
 * @param {string} creatorId - Discord user ID of the ticket creator
 */
function ticketChannelOverwrites(guild, creatorId) {
  const allow = [
    PermissionFlagsBits.ViewChannel,
    PermissionFlagsBits.SendMessages,
    PermissionFlagsBits.ReadMessageHistory
  ];
  return [
    { id: guild.id, deny: [PermissionFlagsBits.ViewChannel] },
    { id: creatorId, allow },
    { id: CONFIG.ROLE_ID_TO_PING, allow }
  ];
}

/**
 * Build the standard ticket action row (Close, Claim, optionally Escalate, optionally Deescalate).
 * @param {Object} ticket - Ticket with escalationTier (0, 1, 2) and optionally escalated
 * @returns {ActionRowBuilder}
 */
function getTicketActionRow(ticket) {
  const tier = ticket.escalationTier ?? (ticket.escalated ? 1 : 0);
  const row = new ActionRowBuilder();

  row.addComponents(
    new ButtonBuilder()
      .setCustomId('close_ticket')
      .setLabel(CONFIG.BUTTON_LABEL_CLOSE)
      .setEmoji(CONFIG.BUTTON_EMOJI_CLOSE)
      .setStyle(ButtonStyle.Secondary),
    new ButtonBuilder()
      .setCustomId('claim_ticket')
      .setLabel(CONFIG.BUTTON_LABEL_CLAIM)
      .setEmoji(CONFIG.BUTTON_EMOJI_CLAIM)
      .setStyle(ButtonStyle.Secondary)
  );

  if (tier < 2) {
    row.addComponents(
      new ButtonBuilder()
        .setCustomId('escalate_ticket')
        .setLabel('Escalate')
        .setStyle(ButtonStyle.Secondary)
    );
  }
  if (tier >= 1) {
    row.addComponents(
      new ButtonBuilder()
        .setCustomId('deescalate_ticket')
        .setLabel('Deescalate')
        .setStyle(ButtonStyle.Secondary)
    );
  }

  return row;
}

module.exports = { getTicketActionRow, ticketChannelOverwrites };