/**
 * Centralized timer service to ensure consistent timing across the application
 */

// Store the hunt timer information in localStorage for persistence
export const setHuntTimer = (startTime, endTime = null, isActive = true) => {
  const timerData = {
    startTime,
    endTime,
    isActive,
    lastUpdated: new Date().toISOString(),
  };
  localStorage.setItem("huntTimerData", JSON.stringify(timerData));
};

// Clear the hunt timer completely
export const clearHuntTimer = () => {
  localStorage.removeItem("huntTimerData");
  localStorage.removeItem("teamHuntStartTime"); // Remove legacy timer as well
};

// Get the current hunt timer data
export const getHuntTimer = () => {
  try {
    const timerData = localStorage.getItem("huntTimerData");
    if (!timerData) {
      // Try to migrate from old format if exists
      const legacyStartTime = localStorage.getItem("teamHuntStartTime");
      if (legacyStartTime) {
        return {
          startTime: legacyStartTime,
          endTime: null,
          isActive: true,
          lastUpdated: new Date().toISOString(),
        };
      }
      return null;
    }
    return JSON.parse(timerData);
  } catch (error) {
    console.error("Error parsing hunt timer data:", error);
    return null;
  }
};

// Calculate and format elapsed time from a given start time
export const formatElapsedTime = (startTimeStr) => {
  if (!startTimeStr) return "00:00:00";

  const startTime = new Date(startTimeStr).getTime();
  const now = Date.now();
  const elapsed = Math.floor((now - startTime) / 1000);

  // Handle negative time (shouldn't happen in normal usage)
  if (elapsed < 0) return "00:00:00";

  const hours = Math.floor(elapsed / 3600)
    .toString()
    .padStart(2, "0");
  const minutes = Math.floor((elapsed % 3600) / 60)
    .toString()
    .padStart(2, "0");
  const seconds = Math.floor(elapsed % 60)
    .toString()
    .padStart(2, "0");

  return `${hours}:${minutes}:${seconds}`;
};

// Hook function to use in components to get formatted elapsed time
export const useElapsedTime = (startTime, isActive = true) => {
  if (!startTime || !isActive) return "00:00:00";
  return formatElapsedTime(startTime);
};