// Simplified representation of the ranking algorithm
function calculatePostScore(post) {
  const engagementScore = (post.commentsCount * 2) + (post.reactionsCount * 1);
  const timeDecay = calculateTimeDecay(post.createdAt);
  const updateBoost = calculateUpdateBoost(post.updatedAt, post.editedAt);
  
  return (engagementScore * timeDecay) + updateBoost;
}

function calculateTimeDecay(createdAt) {
  const ageInHours = (Date.now() - createdAt) / (1000 * 60 * 60);
  return Math.pow(0.98, ageInHours); // 2% decay per hour
}

function calculateUpdateBoost(updatedAt, editedAt) {
  const latestUpdate = Math.max(updatedAt, editedAt || 0);
  const timeSinceUpdate = Date.now() - latestUpdate;
  const hoursAfterUpdate = timeSinceUpdate / (1000 * 60 * 60);
  
  // Boost decays over 24 hours
  return hoursAfterUpdate < 24 ? Math.max(0, 10 - (hoursAfterUpdate * 0.4)) : 0;
}

{
  "commentsCount": "number - total comments on the post",
  "reactionsCount": "number - total reactions on the post", 
  "createdAt": "timestamp - when post was originally created",
  "updatedAt": "timestamp - last modification time",
  "editedAt": "timestamp - when content was last edited"
}