const DEXSCREENER_API_URL = "https://api.dexscreener.io/latest/dex/tokens/";

function isSmartContract(address) {
  return address.includes('0x');
}

function fetchTokenData(contractAddress,x,y) {
  const url = `${DEXSCREENER_API_URL}${contractAddress}`;
  chrome.runtime.sendMessage({ action: "fetchData", url: url }, (response) => {
    const data = response.data.pairs[0];  // Assuming the first pair is what you want
    if (data) {
      //alert(data.baseToken.symbol);
      const tooltip = createTooltip(data.baseToken.symbol, data.priceUsd || data.priceNative, data.url,x,y);
      document.body.appendChild(tooltip);
    }
  });
}

function extractTicker(text){
  const index = text.indexOf('0x');
  if (index !== -1 && text.length >= index + 42) {  // 2 characters for '0x' + 40 characters for the address
    return text.substring(index, index + 42);  // Extract '0x' + 40 characters
  }
  return null; 
}

function createTooltip(ticker, price, chartUrl,x,y) {
  const tooltip = document.createElement('div');
  tooltip.style.position = 'absolute';
  tooltip.style.background = '#333';
  tooltip.style.color = '#fff';
  tooltip.style.padding = '5px';
  tooltip.style.borderRadius = '5px';
  tooltip.style.zIndex = '9999';
  tooltip.style.left = `${x}px`;
  tooltip.style.top = `${y}px`;
  tooltip.innerHTML = `Ticker: ${ticker}<br>Price: ${price}`;
  tooltip.addEventListener('click', () => window.open(chartUrl, '_blank'));
  return tooltip;
}

function handleMouseOver(event) {
  const target = event.target;
  
  if (target.nodeType === Node.TEXT_NODE || target.nodeType === Node.ELEMENT_NODE) {
    const text = target.textContent.trim();
    if (isSmartContract(text)) {
      const extractedTicker = extractTicker(text);
      const rect = target.getBoundingClientRect(); // Get the target's position relative to the viewport
      const x = rect.left + window.scrollX; // X-coordinate
      const y = rect.top + window.scrollY;  
      fetchTokenData(extractedTicker,x,y);
    }
  }
}
document.addEventListener('mouseover', handleMouseOver);