import { Chain } from '@types';

/**
 * Canonical list of all reserve addresses across all chains.
 *
 * This is the single source of truth for v2 position readers.
 * Consolidated from:
 *   - src/api/reserve/config/addresses.config.ts (RESERVE_ADDRESS_CONFIGS)
 *   - src/api/stablecoins/config/adjustments.config.ts (RESERVE_STABLECOIN_HOLDERS, AAVE_STABLECOIN_HOLDERS)
 *   - src/api/v2/services/fpmm-positions.service.ts (LP_HOLDER_ADDRESSES)
 *   - src/api/v2/config/cdp.config.ts (CDP_TROVE_OWNERS)
 *
 * The old configs remain for v1 backward compatibility.
 */

export interface ReserveAddress {
  address: string;
  chain: Chain;
  label: string;
}

export const RESERVE_ADDRESSES: ReserveAddress[] = [
  // --- Celo ---
  {
    address: '0x9380fA34Fd9e4Fd14c06305fd7B6199089eD4eb9',
    chain: Chain.CELO,
    label: 'Mento Pools Liquidity Reserve',
  },
  {
    address: '0x87647780180b8f55980c7d3ffefe08a9b29e9ae1',
    chain: Chain.CELO,
    label: 'Custody Multisig',
  },
  {
    address: '0xD3D2e5c5Af667DA817b2D752d86c8f40c22137E1',
    chain: Chain.CELO,
    label: 'Ops Multisig',
  },
  {
    address: '0x6dec25d7be9bf6c6fc302977629f2e801e98611c',
    chain: Chain.CELO,
    label: 'Operational Account',
  },
  {
    address: '0x13a9803d547332c81ebc6060f739821264dbcf1e',
    chain: Chain.CELO,
    label: 'Operational Account',
  },
  {
    address: '0x619600F4ec13C38868841cB83100F611eCF94eE8',
    chain: Chain.CELO,
    label: 'Falcon Finance',
  },
  {
    address: '0xaa8299fc6a685b5f9ce9bda8d0b3ea3d54731976',
    chain: Chain.CELO,
    label: 'Rebalancer Bot',
  },

  // --- Ethereum ---
  {
    address: '0x9380fA34Fd9e4Fd14c06305fd7B6199089eD4eb9',
    chain: Chain.ETHEREUM,
    label: 'Mento Pools Liquidity Reserve',
  },
  {
    address: '0xd0697f70E79476195B742d5aFAb14BE50f98CC1E',
    chain: Chain.ETHEREUM,
    label: 'ETH Custody Multisig',
  },
  {
    address: '0xD3D2e5c5Af667DA817b2D752d86c8f40c22137E1',
    chain: Chain.ETHEREUM,
    label: 'Ops Multisig',
  },
  {
    address: '0xaa8299fc6a685b5f9ce9bda8d0b3ea3d54731976',
    chain: Chain.ETHEREUM,
    label: 'Rebalancer Bot',
  },
  {
    address: '0x6dec25d7be9bf6c6fc302977629f2e801e98611c',
    chain: Chain.ETHEREUM,
    label: 'Operational Account',
  },

  // --- Monad ---
  {
    address: '0x4255Cf38e51516766180b33122029A88Cb853806',
    chain: Chain.MONAD,
    label: 'ReserveV2',
  },
  {
    address: '0x87647780180B8f55980C7D3fFeFe08a9B29e9aE1',
    chain: Chain.MONAD,
    label: 'Reserve Safe',
  },
  {
    address: '0x6dec25d7be9bf6c6fc302977629f2e801e98611c',
    chain: Chain.MONAD,
    label: 'Operational Account',
  },
  {
    address: '0x13a9803d547332c81ebc6060f739821264dbcf1e',
    chain: Chain.MONAD,
    label: 'Operational Account',
  },
];

/**
 * Precomputed map of (chain + address lowercase) → disambiguated label.
 * Only adds a suffix when multiple addresses share the same label on the same chain.
 */
const disambiguatedLabels: Map<string, string> = (() => {
  // Count how many addresses share each (chain, label) pair
  const labelCounts = new Map<string, number>();
  for (const a of RESERVE_ADDRESSES) {
    const key = `${a.chain}:${a.label}`;
    labelCounts.set(key, (labelCounts.get(key) ?? 0) + 1);
  }

  const map = new Map<string, string>();
  for (const a of RESERVE_ADDRESSES) {
    const key = `${a.chain}:${a.label}`;
    const isDuplicate = (labelCounts.get(key) ?? 0) > 1;
    const label = isDuplicate ? `${a.label} (${a.address.slice(0, 6)})` : a.label;
    map.set(`${a.chain}:${a.address.toLowerCase()}`, label);
  }
  return map;
})();

/** Get all reserve addresses for a specific chain, with disambiguated labels */
export function getReserveAddressesByChain(chain: Chain): ReserveAddress[] {
  return RESERVE_ADDRESSES.filter((a) => a.chain === chain).map((a) => ({
    ...a,
    label: disambiguatedLabels.get(`${a.chain}:${a.address.toLowerCase()}`) ?? a.label,
  }));
}

/** Check if an address is a reserve address (case-insensitive) on any chain */
export function isReserveAddress(address: string): boolean {
  const lower = address.toLowerCase();
  return RESERVE_ADDRESSES.some((a) => a.address.toLowerCase() === lower);
}

/** Get the label for a reserve address (case-insensitive), or null if not found.
 *  If the address exists on multiple chains, returns the first match with disambiguation. */
export function getReserveAddressLabel(address: string): string | null {
  const lower = address.toLowerCase();
  for (const a of RESERVE_ADDRESSES) {
    if (a.address.toLowerCase() === lower) {
      return disambiguatedLabels.get(`${a.chain}:${lower}`) ?? a.label;
    }
  }
  return null;
}