import { NextRequest, NextResponse } from 'next/server';
import { postgresClient } from '@/lib/services/postgres-client';

async function getExcludedCompanyIds(): Promise<number[]> {
  try {
    const result = await postgresClient.query(
      `SELECT setting_value FROM kiosk_settings WHERE setting_key = 'excluded_company_ids'`
    );
    const value = result.rows[0]?.setting_value || '';
    return value ? value.split(',').map((id: string) => parseInt(id.trim())).filter((id: number) => !isNaN(id)) : [];
  } catch (error) {
    console.error('Error fetching excluded company IDs:', error);
    return [];
  }
}

async function getExcludedClassifications(): Promise<string[]> {
  try {
    const result = await postgresClient.query(
      `SELECT setting_value FROM kiosk_settings WHERE setting_key = 'excluded_classifications'`
    );
    const value = result.rows[0]?.setting_value || '';
    return value ? value.split(',').map((c: string) => c.trim()).filter(Boolean) : [];
  } catch (error) {
    console.error('Error fetching excluded classifications:', error);
    return [];
  }
}

export async function GET(request: NextRequest) {
  try {
    // Get excluded company IDs (co-managed clients) and classifications
    const excludedCompanyIds = await getExcludedCompanyIds();
    const excludedClassifications = await getExcludedClassifications();
    
    // Build company exclusion filter
    let excludeCompanyFilter = '';
    if (excludedCompanyIds.length > 0 || excludedClassifications.length > 0) {
      const conditions = [];
      if (excludedCompanyIds.length > 0) {
        conditions.push(`t.company_id NOT IN (${excludedCompanyIds.join(',')})`);
      }
      if (excludedClassifications.length > 0) {
        const classificationList = excludedClassifications.map(c => `'${c.replace(/'/g, "''")}'`).join(',');
        conditions.push(`t.company_id NOT IN (SELECT id FROM companies WHERE classification IN (${classificationList}))`);
      }
      excludeCompanyFilter = `AND (${conditions.join(' AND ')})`;
    }

    // Get recent ticket activity for ticker feed - exclude RMM alerts (source = 8), co-managed clients, and excluded classifications
    const activityResult = await postgresClient.query(
      `SELECT 
        t.ticket_number,
        t.title,
        t.priority,
        t.status,
        t.create_date,
        t.last_activity_date,
        c.company_name,
        s.label as status_label
       FROM tickets t
       LEFT JOIN companies c ON t.company_id = c.id
       LEFT JOIN statuses s ON t.status = s.value
       WHERE t.completed_date IS NULL
         AND t.is_deleted = false
         AND (t.source IS NULL OR t.source != 8)
         ${excludeCompanyFilter}
       ORDER BY t.last_activity_date DESC NULLS LAST
       LIMIT 50`
    );

    const activities = activityResult.rows.map((row: any) => ({
      ticketNumber: row.ticket_number,
      title: row.title,
      priority: row.priority,
      status: row.status,
      statusLabel: row.status_label,
      companyName: row.company_name,
      createDate: row.create_date,
      lastActivityDate: row.last_activity_date,
    }));

    return NextResponse.json({ activities });
  } catch (error) {
    console.error('Error fetching kiosk activity:', error);
    return NextResponse.json(
      { error: 'Failed to fetch kiosk activity' },
      { status: 500 }
    );
  }
}