import cron from "node-cron";
import { scrapeToday, scrapeCurrentMonth, scrapeUpcomingMonths, scrapeFullYear } from "./scraper";

let initialized = false;

export function startScheduler(): void {
  if (initialized) return;
  initialized = true;

  // Tier 1: Today — every hour during operating season (Mar-Dec)
  cron.schedule("0 * * 3-12 *", async () => {
    console.log(`[scheduler] tier-1: scraping today @ ${new Date().toISOString()}`);
    await scrapeToday().catch((err) => console.error("[scheduler] tier-1 error:", err));
  });

  // Tier 2: This week — every 6 hours, current month for all parks
  cron.schedule("0 */6 * * *", async () => {
    console.log(`[scheduler] tier-2: scraping current month @ ${new Date().toISOString()}`);
    await scrapeCurrentMonth().catch((err) => console.error("[scheduler] tier-2 error:", err));
  });

  // Tier 3: Upcoming — twice daily (3 AM, 3 PM), current + next month
  cron.schedule("0 3,15 * * *", async () => {
    console.log(`[scheduler] tier-3: scraping upcoming months @ ${new Date().toISOString()}`);
    await scrapeUpcomingMonths().catch((err) => console.error("[scheduler] tier-3 error:", err));
  });

  // Tier 4: Full season — once daily at 3 AM
  cron.schedule("0 3 * * *", async () => {
    console.log(`[scheduler] tier-4: scraping full year @ ${new Date().toISOString()}`);
    await scrapeFullYear().catch((err) => console.error("[scheduler] tier-4 error:", err));
  });

  console.log("[scheduler] cron jobs registered");
  console.log("  tier-1: today        — hourly (Mar-Dec)");
  console.log("  tier-2: current month — every 6h");
  console.log("  tier-3: upcoming     — 3 AM + 3 PM");
  console.log("  tier-4: full year    — 3 AM daily");
}