import cron from 'node-cron';
import { getInterests } from '~/server/utils/nocodb';
import { checkDocumentSignatureStatus } from '~/server/utils/documeso';

// Track if tasks are already scheduled
let tasksScheduled = false;

export function scheduleEOIReminders() {
  if (tasksScheduled) {
    console.log('[EOI Reminders] Tasks already scheduled');
    return;
  }

  console.log('[EOI Reminders] Scheduling reminder tasks...');

  // Schedule for 9am daily
  cron.schedule('0 9 * * *', async () => {
    console.log('[EOI Reminders] Running 9am reminder check...');
    await processReminders();
  }, {
    timezone: 'Europe/Paris'
  });

  // Schedule for 4pm daily
  cron.schedule('0 16 * * *', async () => {
    console.log('[EOI Reminders] Running 4pm reminder check...');
    await processReminders();
  }, {
    timezone: 'Europe/Paris'
  });

  tasksScheduled = true;
  console.log('[EOI Reminders] Tasks scheduled successfully');
}

async function processReminders() {
  try {
    // Get all interests
    const response = await getInterests();
    const interests = response.list || [];

    console.log(`[EOI Reminders] Processing ${interests.length} interests...`);

    for (const interest of interests) {
      try {
        // Skip if no document ID or reminders disabled
        const documentId = (interest as any)['documeso_document_id'];
        const remindersEnabled = (interest as any)['reminder_enabled'] !== false;
        
        if (!documentId || !remindersEnabled) {
          continue;
        }

        // Check if we should send reminder (not sent in last 12 hours)
        const lastReminderSent = (interest as any)['last_reminder_sent'];
        if (lastReminderSent) {
          const lastSentTime = new Date(lastReminderSent).getTime();
          const twelveHoursAgo = Date.now() - (12 * 60 * 60 * 1000);
          if (lastSentTime > twelveHoursAgo) {
            continue; // Skip if reminder sent within last 12 hours
          }
        }

        // Send reminder
        await sendReminder(interest);
      } catch (error) {
        console.error(`[EOI Reminders] Error processing interest ${interest.Id}:`, error);
      }
    }

    console.log('[EOI Reminders] Reminder processing completed');
  } catch (error) {
    console.error('[EOI Reminders] Error in processReminders:', error);
  }
}

async function sendReminder(interest: any) {
  try {
    const response = await $fetch<{
      success: boolean;
      remindersSent: number;
      results: any[];
      message?: string;
    }>('/api/eoi/send-reminders', {
      method: 'POST',
      headers: {
        'x-tag': '094ut234' // System tag for automated processes
      },
      body: {
        interestId: interest.Id.toString(),
        documentId: (interest as any)['documeso_document_id']
      }
    });

    if (response.success) {
      console.log(`[EOI Reminders] Sent ${response.remindersSent} reminders for interest ${interest.Id}`);
    }
  } catch (error) {
    console.error(`[EOI Reminders] Failed to send reminder for interest ${interest.Id}:`, error);
  }
}

// Export function to manually trigger reminders (for testing)
export async function triggerReminders() {
  console.log('[EOI Reminders] Manually triggering reminder check...');
  await processReminders();
}