first commit

Made-with: Cursor

backend/src/config.ts

@@ -0,0 +1,87 @@
+import "dotenv/config";
+
+function env(key: string, defaultValue?: string): string {
+  const v = process.env[key];
+  if (v !== undefined) return v;
+  if (defaultValue !== undefined) return defaultValue;
+  throw new Error(`Missing required env: ${key}`);
+}
+
+function envInt(key: string, defaultValue: number): number {
+  const v = process.env[key];
+  if (v === undefined) return defaultValue;
+  const n = parseInt(v, 10);
+  if (Number.isNaN(n)) throw new Error(`Invalid integer env: ${key}`);
+  return n;
+}
+
+function envBool(key: string, defaultValue: boolean): boolean {
+  const v = process.env[key];
+  if (v === undefined) return defaultValue;
+  return v === "true" || v === "1";
+}
+
+export const config = {
+  port: envInt("PORT", 3001),
+  trustProxy: envBool("TRUST_PROXY", false),
+  allowedOrigins: (process.env.ALLOWED_ORIGINS ?? process.env.FRONTEND_URL ?? "http://localhost:5173,http://localhost:5174").split(",").map((s) => s.trim()),
+
+  // Database: omit DATABASE_URL for SQLite; set for Postgres
+  databaseUrl: process.env.DATABASE_URL as string | undefined,
+  sqlitePath: process.env.SQLITE_PATH ?? "./data/faucet.db",
+
+  // Security
+  hmacIpSecret: env("HMAC_IP_SECRET"),
+  jwtSecret: env("JWT_SECRET", process.env.HMAC_IP_SECRET ?? ""),
+  jwtExpiresInSeconds: envInt("JWT_EXPIRES_IN_SECONDS", 86400 * 7), // 7 days
+  nip98MaxSkewSeconds: envInt("NIP98_MAX_SKEW_SECONDS", 300),
+  nonceTtlSeconds: envInt("NONCE_TTL_SECONDS", 600),
+
+  // Faucet economics
+  faucetEnabled: envBool("FAUCET_ENABLED", true),
+  emergencyStop: envBool("EMERGENCY_STOP", false),
+  faucetMinSats: envInt("FAUCET_MIN_SATS", 1),
+  faucetMaxSats: envInt("FAUCET_MAX_SATS", 5),
+  payoutWeightSmall: envInt("PAYOUT_WEIGHT_SMALL", 50),
+  payoutWeightMedium: envInt("PAYOUT_WEIGHT_MEDIUM", 30),
+  payoutWeightLarge: envInt("PAYOUT_WEIGHT_LARGE", 15),
+  payoutWeightJackpot: envInt("PAYOUT_WEIGHT_JACKPOT", 5),
+  payoutSmallSats: envInt("PAYOUT_SMALL_SATS", 10),
+  payoutMediumSats: envInt("PAYOUT_MEDIUM_SATS", 25),
+  payoutLargeSats: envInt("PAYOUT_LARGE_SATS", 50),
+  payoutJackpotSats: envInt("PAYOUT_JACKPOT_SATS", 100),
+  dailyBudgetSats: envInt("DAILY_BUDGET_SATS", 10000),
+  maxClaimsPerDay: envInt("MAX_CLAIMS_PER_DAY", 100),
+  minWalletBalanceSats: envInt("MIN_WALLET_BALANCE_SATS", 1000),
+
+  // Eligibility
+  minAccountAgeDays: envInt("MIN_ACCOUNT_AGE_DAYS", 14),
+  minActivityScore: envInt("MIN_ACTIVITY_SCORE", 30),
+  minNotesCount: envInt("MIN_NOTES_COUNT", 5),
+  minFollowingCount: envInt("MIN_FOLLOWING_COUNT", 10),
+  minFollowersCount: envInt("MIN_FOLLOWERS_COUNT", 0),
+  activityLookbackDays: envInt("ACTIVITY_LOOKBACK_DAYS", 90),
+
+  // Cooldowns
+  cooldownDays: envInt("COOLDOWN_DAYS", 7),
+  ipCooldownDays: envInt("IP_COOLDOWN_DAYS", 7),
+  maxClaimsPerIpPerPeriod: envInt("MAX_CLAIMS_PER_IP_PER_PERIOD", 1),
+
+  // Nostr (defaults include relays common for remote signers / NIP-05)
+  nostrRelays: (process.env.NOSTR_RELAYS ?? "wss://relay.damus.io,wss://relay.nostr.band,wss://relay.getalby.com,wss://nos.lol").split(",").map((s) => s.trim()),
+  relayTimeoutMs: envInt("RELAY_TIMEOUT_MS", 5000),
+  maxEventsFetch: envInt("MAX_EVENTS_FETCH", 500),
+  metadataCacheHours: envInt("METADATA_CACHE_HOURS", 24),
+
+  // LNbits
+  lnbitsBaseUrl: env("LNBITS_BASE_URL").replace(/\/$/, ""),
+  lnbitsAdminKey: env("LNBITS_ADMIN_KEY"),
+  lnbitsWalletId: env("LNBITS_WALLET_ID"),
+  depositLightningAddress: process.env.DEPOSIT_LIGHTNING_ADDRESS ?? "",
+  depositLnurlp: process.env.DEPOSIT_LNURLP ?? "",
+  cashuRedeemApiUrl: (process.env.CASHU_REDEEM_API_URL ?? "https://cashu-redeem.azzamo.net").replace(/\/$/, ""),
+};
+
+export function usePostgres(): boolean {
+  return Boolean(config.databaseUrl);
+}