/**
 * Stacked leaderboard layout — Option 1: TG count joins the name line.
 */

 import { EmbedBuilder } from "discord.js";
 import { Nation, ClassKey } from "@types";
 import { WRankWeek } from "@systems/wrank";
 import { Emoji } from "@systems/emojis";
 import { Config } from "@systems/config";
 import { format } from "@format";
 import { Layout, NationContext } from "@ui/layout";
 import { EmbedHelpers } from "@ui/embed-helpers";
 import { LeaderboardLayout, LeaderboardRow } from "../index";
 
 const TEMPLATE = "{wrank} {class} {name}{indicators} · [{tgs}]";
 
 function formatRow(row: LeaderboardRow, context: NationContext): string {
   const char     = row.character;
   const goal     = Config.get({ section: "wrank", key: "goal" });
   const wrEntry  = Layout.wrankEntry(char as any, row.position, row.weeklyPts, row.tgCount);
   const classKey = (typeof char.class === "object" ? char.class?.key : char.class) as ClassKey;
 
   const mainTokens: Record<string, string> = {
     wrank:      Layout.wrank(wrEntry, goal, context),
     class:      Emoji.class(classKey) || classKey || "?",
     name:       char.name,
     indicators: Layout.indicators(char as any),
     tgs:        Layout.tgCount(row.tgCount, goal),
   };
 
   const scoreEmoji = Emoji.get("score") || "📊";
   const scoreLine  = `${scoreEmoji} ${format.scoreBold(row.weeklyPts)}`;
   const kdLine     = (row.totalKills || row.totalDeaths) ? format.kd(row.totalKills, row.totalDeaths) : "";
 
   const mainLine = Layout.formatRow(TEMPLATE, mainTokens);
   const lines    = [mainLine, `\u3000${scoreLine}`];
   if (kdLine) lines.push(`\u3000${kdLine}`);
 
   return lines.join("\n");
 }
 
 function buildEmbed(week: WRankWeek, rows: LeaderboardRow[]): EmbedBuilder {
   const capellaRows = rows.filter((r) => r.character.nation === Nation.Capella);
   const procyonRows = rows.filter((r) => r.character.nation === Nation.Procyon);
   const capContext  = Layout.nationContext(capellaRows);
   const proContext  = Layout.nationContext(procyonRows);
   const sortByPts   = (a: LeaderboardRow, b: LeaderboardRow) => b.weeklyPts - a.weeklyPts;
 
   const capellaEmoji = Emoji.get("capella");
   const procyonEmoji = Emoji.get("procyon");
 
   const embed = new EmbedBuilder()
     .setTitle(`🏆 Weekly Leaderboard — ${week.weekKey}`)
     .setColor(0xe8a317)
     .setFooter({ text: `Weekly Leaderboard · ${week.weekKey} · Updated ${format.date(new Date(), "dd/MM/YYYY HH:mm")}` })
     .setTimestamp();
 
   const capellaFormatted = [...capellaRows].sort(sortByPts).map((r) => formatRow(r, capContext));
   const procyonFormatted = [...procyonRows].sort(sortByPts).map((r) => formatRow(r, proContext));
 
   EmbedHelpers.addPerPlayerGrid(embed, [
     { header: `${capellaEmoji} Capella`, rows: capellaFormatted },
     { header: `${procyonEmoji} Procyon`, rows: procyonFormatted },
   ]);
 
   return embed;
 }
 
 export const stackedTgTopLeaderboardLayout: LeaderboardLayout = {
   name:        "stacked-tg-top",
   description: "TG count joins the name line, score and K/D each on their own line",
   buildEmbed,
   formatRow,
 };