/**
 * Spinza economy constants. Everything here is fictional: Spinza Credits (SC)
 * have no monetary value, cannot be bought and cannot be withdrawn.
 */

export const CURRENCY_NAME = "Spinza Credits";
export const CURRENCY_SHORT = "SC";

/** Granted to every new account. */
export const STARTING_BALANCE = 10_000;

/** Bet levels available in every game (games may restrict via minBet/maxBet). */
export const BET_LEVELS = [10, 20, 50, 100, 200, 500, 1_000] as const;
export const DEFAULT_MIN_BET = 10;
export const DEFAULT_MAX_BET = 1_000;

/** Daily reward streak progression (index = streak day - 1). */
export const DAILY_REWARDS = [1_000, 1_250, 1_500, 1_750, 2_000, 2_500, 5_000] as const;
/** Missing more than this many days resets the streak. Missing one day soft-resets (goes back 2 steps). */
export const DAILY_STREAK_GRACE_DAYS = 1;

/** Rescue credits for players who hit 0 SC. */
export const RESCUE_CREDITS_AMOUNT = 2_500;
export const RESCUE_CREDITS_COOLDOWN_HOURS = 12;
/** Balance under which rescue credits become available (0 = exactly zero). */
export const RESCUE_CREDITS_THRESHOLD = 0;

/** Auto-spin counts. */
export const AUTO_SPIN_OPTIONS = [10, 25, 50, 100] as const;

/** Win presentation classes, by multiplier of bet (inclusive lower bound). */
export const WIN_CLASSES = [
  { id: "legendary", label: "LEGENDARY WIN", min: 500 },
  { id: "epic", label: "EPIC WIN", min: 100 },
  { id: "mega", label: "MEGA WIN", min: 50 },
  { id: "big", label: "BIG WIN", min: 20 },
  { id: "win", label: "WIN", min: 5 },
] as const;

export type WinClassId = (typeof WIN_CLASSES)[number]["id"] | "regular" | "none";

export function classifyWin(multiplier: number): WinClassId {
  if (multiplier <= 0) return "none";
  for (const c of WIN_CLASSES) if (multiplier >= c.min) return c.id;
  return "regular";
}

/** Session/break reminder options in minutes (0 = off). */
export const SESSION_REMINDER_OPTIONS = [0, 30, 60, 90, 120] as const;

/** XP economy. */
export const XP_PER_SPIN = 2;
export const XP_PER_BONUS = 50;
export const XP_PER_NEW_GAME = 100;
export const MAX_LEVEL = 100;

/** XP required to go from level L to L+1. Smooth curve, ~level 100 at ~1M XP. */
export function xpForLevel(level: number): number {
  return Math.round(100 * Math.pow(level, 1.55) + 200 * level);
}

/** Cumulative XP threshold to reach `level` (level 1 = 0). */
export function xpThreshold(level: number): number {
  let total = 0;
  for (let l = 1; l < level; l++) total += xpForLevel(l);
  return total;
}

export function levelForXp(xp: number): { level: number; current: number; next: number; progress: number } {
  let level = 1;
  let remaining = xp;
  while (level < MAX_LEVEL && remaining >= xpForLevel(level)) {
    remaining -= xpForLevel(level);
    level++;
  }
  const next = level >= MAX_LEVEL ? 0 : xpForLevel(level);
  return { level, current: remaining, next, progress: next ? remaining / next : 1 };
}

/** Credits granted on level-up (fictional). */
export function levelUpReward(level: number): number {
  if (level % 25 === 0) return 25_000;
  if (level % 10 === 0) return 10_000;
  if (level % 5 === 0) return 4_000;
  return 1_000;
}

export const RESERVED_USERNAMES = new Set([
  "admin", "administrator", "root", "system", "support", "spenza", "spinza", "staff", "moderator", "mod",
  "api", "www", "security", "help", "official", "team", "null", "undefined", "me", "you", "guest", "anonymous",
  "owner", "dev", "developer", "bot", "test", "info", "contact", "billing", "payments", "casino", "webmaster",
]);

/** Small default profanity list — the admin can extend it via the `profanity_words` setting. */
export const DEFAULT_PROFANITY = [
  "fuck", "shit", "bitch", "cunt", "nigger", "nigga", "faggot", "retard", "whore", "slut", "dick", "cock", "pussy",
  "asshole", "nazi", "hitler", "rape", "kike", "spic", "chink",
];

export const SESSION_COOKIE = "spinza_session";
export const ADMIN_COOKIE = "spinza_admin";
export const SESSION_TTL_DAYS = 30;
export const ADMIN_SESSION_TTL_HOURS = 12;

export const ROUND_ID_PREFIX = "spz_rnd_";
export const RECOVERY_CODE_PREFIX = "SPZ";

export const GAME_LIFECYCLE = ["draft", "simulation", "approved", "staging", "published", "disabled"] as const;
export type GameLifecycle = (typeof GAME_LIFECYCLE)[number];

export const TRANSACTION_TYPES = [
  "INITIAL_GRANT",
  "BET",
  "WIN",
  "DAILY_REWARD",
  "ACHIEVEMENT",
  "MISSION",
  "LEVEL_UP",
  "RESCUE_CREDITS",
  "ADMIN_ADJUSTMENT",
] as const;
export type TransactionType = (typeof TRANSACTION_TYPES)[number];