Token List Management

// From src/__swaps__/types/assets.ts
interface ParsedSearchAsset {
  address: string;      // Contract address
  chainId: ChainId;    // Network ID
  name: string;
  symbol: string;
  decimals: number;
  verified: boolean;   // Will be false for manual adds
  // ... other fields
}

type Asset = {
  // Primary chain
  address: string;
  chainId: number;
  
  // All chains where token exists
  networks: Record<string, {
    address: string;    // Contract on that chain
    decimals: number;   // May differ per chain
  }>;
  
  // Bridge support
  bridging: {
    bridgeable: boolean;
    networks: Record<string, {
      bridgeable: boolean;  // Can bridge to this chain
    }>;
  };
};

// From src/__swaps__/screens/Swap/resources/search/searchV2.ts
const searchAssets = ({
  query,
  filter,
  chainId,
}: {
  query: string;
  filter?: 'verified' | 'all';
  chainId?: ChainId;
}) => {
  const searchLower = query.toLowerCase();
  
  return allAssets.filter(asset => {
    // Filter by chain if specified
    if (chainId && asset.chainId !== chainId) {
      return false;
    }
    
    // Filter by verification if specified
    if (filter === 'verified' && !asset.verified) {
      return false;
    }
    
    // Match against symbol, name, or address
    return (
      asset.symbol.toLowerCase().includes(searchLower) ||
      asset.name.toLowerCase().includes(searchLower) ||
      asset.address.toLowerCase() === searchLower
    );
  });
};

// From src/__swaps__/types/search.ts
type AssetToBuySectionId = 
  | 'bridge'
  | 'recent'
  | 'favorites' 
  | 'verified'
  | 'unverified'
  | 'other_networks'
  | 'popular';  // Popular tokens section

interface TokenMetadata {
  name: string;              // Full name
  symbol: string;            // Ticker
  decimals: number;          // Precision
  iconUrl?: string;          // Logo image
  description?: string;      // What is this token
  website?: string;          // Official website
  twitter?: string;          // Social media
  
  colors: {
    primary: string;         // Brand color
    fallback?: string;       // Alt color
  };
  
  price: {
    value: number;           // Current price
    changedAt: number;       // Last update
    relativeChange24h: number; // % change
  };
}

// From src/__swaps__/utils/swaps.ts
const getHighContrastColor = (color: string): ResponseByTheme<string> => {
  let lightColor = color;
  let darkColor = color;
  
  // Ensure contrast in light mode
  const lightModeContrast = chroma.contrast(lightColor, globalColors.white100);
  if (lightModeContrast < 2.5) {
    lightColor = chroma(lightColor)
      .darken(2.5 - lightModeContrast)
      .hex();
  }
  
  // Ensure contrast in dark mode
  const darkModeContrast = chroma.contrast(darkColor, globalColors.grey100);
  if (darkModeContrast < 3) {
    darkColor = chroma(darkColor)
      .set('hsl.l', 0.8)
      .hex();
  }
  
  return { light: lightColor, dark: darkColor };
};

interface Asset {
  probableSpam?: boolean;    // Spam flag
  transferable: boolean;     // Can be transferred
  verified: boolean;         // Verified status
}

{
  "name": "My Token List",
  "tokens": [
    {
      "chainId": 1,
      "address": "0x...",
      "name": "Token Name",
      "symbol": "TKN",
      "decimals": 18,
      "logoURI": "https://..."
    }
  ]
}