import { createClient } from '@supabase/supabase-js';

// 从环境变量获取Supabase配置
const supabaseUrl = process.env.NEXT_PUBLIC_SUPABASE_URL || process.env.SUPABASE_URL || '';
const supabaseAnonKey = process.env.NEXT_PUBLIC_SUPABASE_ANON_KEY || process.env.SUPABASE_ANON_KEY || '';

console.log('Supabase Configuration Check:', {
  urlDefined: !!supabaseUrl,
  keyDefined: !!supabaseAnonKey,
  url: supabaseUrl,
  // 打印部分key以便调试
  keyPrefix: supabaseAnonKey ? supabaseAnonKey.substring(0, 20) + '...' : 'undefined',
  keyLength: supabaseAnonKey ? supabaseAnonKey.length : 0
});

if (!supabaseUrl || !supabaseAnonKey) {
  console.error('Supabase URL and Anon Key are required');
}

// 尝试解码JWT token并打印解码内容
try {
  if (supabaseAnonKey) {
    const parts = supabaseAnonKey.split('.');
    if (parts.length === 3) {
      const payload = parts[1];
      const decoded = atob(payload);
      console.log('JWT Payload:', decoded);
    } else {
      console.error('Invalid JWT format, expected 3 parts but got:', parts.length);
    }
  }
} catch (error) {
  console.error('JWT解码失败:', error);
}

// 创建Supabase客户端
export const supabase = createClient(supabaseUrl, supabaseAnonKey, {
  auth: {
    persistSession: true,
    autoRefreshToken: true,
    detectSessionInUrl: true,
  }
});

// 测试Supabase连接
supabase.auth.onAuthStateChange((event, session) => {
  console.log(`Supabase auth event: ${event}`, session ? 'Session exists' : 'No session');
  if (session) {
    console.log('Current user:', session.user.email);
  }
});

// 尝试执行健康检查
async function checkSupabaseHealth() {
  try {
    const { data, error } = await supabase.from('_health').select('*').limit(1);
    console.log('Supabase health check:', error ? `Error: ${error.message}` : 'Success', data);
  } catch (error) {
    console.error('Supabase health check error:', error);
  }
}

checkSupabaseHealth();

export default supabase;