/**
 * TG — thin dispatcher for TG-related operations.
 * Orchestrates Score, Attendance, WRank, and Bringer.
 *
 * Usage:
 *   import { TG } from "@systems/tg";
 *
 *   TG.currentWeek()
 *   TG.resetWeek()
 *   TG.getAttendance({ historyKey })
 *   TG.getScore({ character, slot })
 *   TG.getWeeklySummary({ character })
 */

 import { Nation, Character, UserKey, SlotHour, TGScore } from "@types";
 import { WRank } from "@systems/wrank";
 import { Bringer } from "@systems/bringer";
 import { Score, WeeklySummary } from "@systems/score";
 import { Attendance } from "@systems/attendance";
 import { Config } from "@systems/config";
 import { TGKey } from "@systems/tg-key";

 export const TG = {
   // ── Week ──────────────────────────────────────────────────────────────────
 
   currentWeek() {
     return WRank.currentWeek();
   },
 
   /**
    * Reset to a new week — carry Bringer forward, clear ranks.
    * Called every Monday 00:00 by the Scheduler.
    */
   resetWeek(): void {
     const now         = new Date();
     const newWeekKey  = WRank.weekKey(now);
     const prevWeekKey = WRank.weekKey(new Date(now.getTime() - 7 * 24 * 60 * 60 * 1000));
 
     // Access internal data via WRank
     const prevWeek = WRank.weekFromKey(prevWeekKey);
     const newWeek  = WRank.currentWeek(); // ensures new week exists
 
     if (prevWeek) {
       const goal = Config.get({ section: "wrank", key: "goal" });
       for (const nation of [Nation.Capella, Nation.Procyon]) {
         const entries = prevWeek.entries[nation];
         const rank1   = entries.find((e) => e.currentRank === 1);
 
         // Rank 1 with >= goal TGs becomes Bringer — no exceptions
         // Officers use Bringer.override() for manual adjustments
         if (rank1 && rank1.tgCount >= goal) {
           newWeek.bringer[nation] = rank1.characterName;
         } else {
           newWeek.bringer[nation] = null;
         }
 
         // Overrides do NOT carry forward — each week starts clean
         delete (newWeek.bringer as any)[`${nation}Override`];
       }
     }
 
     WRank.save();
     console.log(`[TG] Week reset to ${newWeekKey}. Bringer:`, newWeek.bringer);
   },
 
   // ── Attendance ────────────────────────────────────────────────────────────
 
   getAttendance({ historyKey, nation }: {
     historyKey: TGKey;
     nation?:    Nation;
   }): UserKey[] {
     const players = Attendance.players(historyKey);
     if (!nation) return players;
     // Filter by nation requires character lookup — caller handles if needed
     return players;
   },
 
   allSubmitted(historyKey: TGKey): boolean {
     return Attendance.allSubmitted(historyKey);
   },
 
   // ── Score ─────────────────────────────────────────────────────────────────
 
   getScore({ character, slot, date }: {
     character: Character;
     slot:      SlotHour;
     date?:     string;
   }): TGScore | null {
     return Score.get({ character, slot });
   },
 
   getWeeklySummary({ character }: { character: Character }): WeeklySummary {
     return Score.getWeeklySummary({ character });
   },
 
   submitScore(params: Parameters<typeof Score.submit>[0]): void {
     Score.submit(params);
   },
 
   // ── Bringer ───────────────────────────────────────────────────────────────
 
   getBringer({ nation }: { nation: Nation }): string | null {
     return Bringer.get({ nation });
   },
 
   // ── W.Rank ────────────────────────────────────────────────────────────────
 
   getEntry(character: Character) {
     return WRank.entry(character.name, character.nation);
   },
 };