// Chains, canonical contracts and well-known protocol addresses (labels only: a label is not an endorsement).
export const CHAINS = {
  8453: { id: 8453, name: 'Base', key: 'base', caip2: 'eip155:8453', native: 'ETH', onchain: true },
  1: { id: 1, name: 'Ethereum', key: 'ethereum', caip2: 'eip155:1', native: 'ETH', onchain: true },
  84532: { id: 84532, name: 'Base Sepolia', key: 'base-sepolia', caip2: 'eip155:84532', native: 'ETH', onchain: true },
};
export const CHAIN_ALIASES = { base: 8453, 'base-mainnet': 8453, 'eip155:8453': 8453, ethereum: 1, eth: 1, mainnet: 1, 'eip155:1': 1, 'base-sepolia': 84532, 'eip155:84532': 84532 };

export const PERMIT2 = '0x000000000022d473030f116ddee9f6b43ac78ba3';
export const USDC = { 8453: '0x833589fcd6edb6e08f4c7c32d4f71b54bda02913', 1: '0xa0b86991c6218b36c1d19d4a2e9eb0ce3606eb48', 84532: '0x036cbd53842c5426634e7929541ec2318f3dcf7e' };

/** address (lowercase) -> label; per chain, plus '*' for addresses deployed at the same address everywhere. */
export const LABELS = {
  '*': {
    [PERMIT2]: 'Uniswap Permit2',
    '0xca11bde05977b3631167028862be2a173976ca11': 'Multicall3',
    '0x0000000000000068f116a894984e2dab9d29fa94': 'Seaport 1.6 (OpenSea)',
    '0x00000000000000adc04c56bf30ac9d3c0aaf14dc': 'Seaport 1.5 (OpenSea)',
    '0x1e0049783f008a0085193e00003d00cd54003c71': 'OpenSea Conduit',
    '0x111111125421ca6dc452d289314280a0f8842a65': '1inch Aggregation Router v6',
    '0x9008d19f58aabd9ed0d60971565aa8510560ab41': 'CoW Protocol Settlement',
    '0xc92e8bdf79f0507f65a392b0ab4667716bfe0110': 'CoW Protocol Vault Relayer',
    '0x1231deb6f5749ef6ce6943a275a1d3e7486f4eae': 'LI.FI Diamond',
    '0x3fc91a3afd70395cd496c647d5a6cc9d4b2b7fad': 'Uniswap Universal Router',
  },
  8453: {
    '0x833589fcd6edb6e08f4c7c32d4f71b54bda02913': 'USDC (Circle, Base)',
    '0x4200000000000000000000000000000000000006': 'WETH (Base)',
    '0x6ff5693b99212da76ad316178a184ab56d299b43': 'Uniswap Universal Router v2 (Base)',
    '0x2626664c2603336e57b271c5c0b26f421741e481': 'Uniswap SwapRouter02 (Base)',
    '0xcf77a3ba9a5ca399b7c97c74d54e5b1beb874e43': 'Aerodrome Router (Base)',
    '0xa238dd80c259a72e81d7e4664a9801593f98d1c5': 'Aave v3 Pool (Base)',
  },
  1: {
    '0xa0b86991c6218b36c1d19d4a2e9eb0ce3606eb48': 'USDC (Circle, Ethereum)',
    '0xdac17f958d2ee523a2206206994597c13d831ec7': 'USDT (Tether, Ethereum)',
    '0xc02aaa39b223fe8d0a0e5c4f27ead9083c756cc2': 'WETH (Ethereum)',
    '0x66a9893cc07d91d95644aedd05d03f95e1dba8af': 'Uniswap Universal Router v2 (Ethereum)',
    '0x68b3465833fb72a70ecdf485e0e4c7bd8665fc45': 'Uniswap SwapRouter02 (Ethereum)',
    '0x87870bca3f3fd6335c3f4ce8392d69350b4fa4e2': 'Aave v3 Pool (Ethereum)',
    '0xdef1c0ded9bec7f1a1670819833240f027b25eff': '0x Exchange Proxy',
  },
  84532: { '0x036cbd53842c5426634e7929541ec2318f3dcf7e': 'USDC (Circle, Base Sepolia)' },
};
/** Tokens whose decimals/symbol are known offline. */
export const TOKENS = {
  8453: { '0x833589fcd6edb6e08f4c7c32d4f71b54bda02913': ['USDC', 6], '0x4200000000000000000000000000000000000006': ['WETH', 18] },
  1: { '0xa0b86991c6218b36c1d19d4a2e9eb0ce3606eb48': ['USDC', 6], '0xdac17f958d2ee523a2206206994597c13d831ec7': ['USDT', 6], '0xc02aaa39b223fe8d0a0e5c4f27ead9083c756cc2': ['WETH', 18] },
  84532: { '0x036cbd53842c5426634e7929541ec2318f3dcf7e': ['USDC', 6] },
};
export const labelOf = (chainId, a) => (a ? LABELS[chainId]?.[a.toLowerCase()] || LABELS['*'][a.toLowerCase()] || null : null);
export const tokenOf = (chainId, a) => (a ? TOKENS[chainId]?.[a.toLowerCase()] || null : null);

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