<script lang="ts">
  import { pushNotificationManager, type NotificationState } from '$lib/client/PushNotificationManager';
  import { onMount } from 'svelte';
  
  let viewModel = $state<NotificationState>({
    supported: false,
    permission: 'default',
    subscribed: false,
    loading: false,
    error: null
  });
  
  let testLoading = $state<boolean>(false);
  let testMessage = $state<string | null>(null);
  let unsubscribe: (() => void) | null = null;
  
  onMount(() => {
    unsubscribe = pushNotificationManager.onStateChange((newState) => {
      viewModel = newState;
    });
    
    return () => {
      unsubscribe?.();
    };
  });
  
  async function sendTestNotification(type: 'success' | 'error' | 'progress') {
    testLoading = true;
    testMessage = null;
    
    try {
      const response = await fetch('/api/notifications/test', {
        method: 'POST',
        headers: { 'Content-Type': 'application/json' },
        body: JSON.stringify({ type })
      });
      
      if (!response.ok) {
        throw new Error('Failed to send test notification');
      }
      
      const result = await response.json();
      testMessage = `✓ Test ${type} notification sent to ${result.subscriberCount} subscriber(s)`;
    } catch (error) {
      testMessage = `✗ Error: ${error instanceof Error ? error.message : 'Unknown error'}`;
    } finally {
      testLoading = false;
      
      setTimeout(() => {
        testMessage = null;
      }, 3000);
    }
  }
</script>

<svelte:head>
  <title>InstaRecipe - Notification Tests</title>
</svelte:head>

<div class="mx-auto p-6 max-w-4xl">
  <div class="mb-8">
    <h1 class="text-3xl font-bold mb-2">Notification Testing</h1>
    <p class="text-gray-600">Debug endpoint for testing push notifications</p>
  </div>
  
  {#if !viewModel.subscribed}
    <div class="bg-yellow-50 border border-yellow-200 rounded-lg p-4 mb-6">
      <div class="flex items-start space-x-2">
        <svg class="w-5 h-5 text-yellow-400 mt-0.5" fill="none" stroke="currentColor" viewBox="0 0 24 24">
          <path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M12 9v2m0 4h.01m-6.938 4h13.856c1.54 0 2.502-1.667 1.732-2.5L13.732 4c-.77-.833-1.964-.833-2.732 0L3.732 15.5c-.77.833.192 2.5 1.732 2.5z"></path>
        </svg>
        <div>
          <div class="text-sm font-medium text-yellow-800">Not Subscribed</div>
          <div class="text-sm text-yellow-700">
            You must enable push notifications on the <a href="/" class="underline">homepage</a> before testing.
          </div>
        </div>
      </div>
    </div>
  {/if}
  
  <div class="bg-white border rounded-lg shadow-sm p-6">
    <h2 class="text-lg font-medium text-gray-900 mb-4">Test Notifications</h2>
    <p class="text-sm text-gray-600 mb-6">
      Send test notifications to verify your subscription is working correctly.
    </p>
    
    <div class="flex flex-wrap gap-3 mb-6">
      <button
        onclick={() => sendTestNotification('success')}
        disabled={testLoading || !viewModel.subscribed}
        class="px-4 py-2 bg-green-600 text-white text-sm font-medium rounded-lg hover:bg-green-700 disabled:opacity-50 disabled:cursor-not-allowed transition-colors"
      >
        {testLoading ? 'Sending...' : 'Test Success'}
      </button>
      
      <button
        onclick={() => sendTestNotification('error')}
        disabled={testLoading || !viewModel.subscribed}
        class="px-4 py-2 bg-red-600 text-white text-sm font-medium rounded-lg hover:bg-red-700 disabled:opacity-50 disabled:cursor-not-allowed transition-colors"
      >
        {testLoading ? 'Sending...' : 'Test Error'}
      </button>
      
      <button
        onclick={() => sendTestNotification('progress')}
        disabled={testLoading || !viewModel.subscribed}
        class="px-4 py-2 bg-blue-600 text-white text-sm font-medium rounded-lg hover:bg-blue-700 disabled:opacity-50 disabled:cursor-not-allowed transition-colors"
      >
        {testLoading ? 'Sending...' : 'Test Progress'}
      </button>
    </div>
    
    {#if testMessage}
      <div class="p-3 rounded-lg {testMessage.startsWith('✓') ? 'bg-green-50 border border-green-200' : 'bg-red-50 border border-red-200'}">
        <div class="flex items-start space-x-2">
          <svg class="w-4 h-4 flex-shrink-0 mt-0.5 {testMessage.startsWith('✓') ? 'text-green-400' : 'text-red-400'}" fill="none" stroke="currentColor" viewBox="0 0 24 24">
            <path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d={testMessage.startsWith('✓') ? "M5 13l4 4L19 7" : "M6 18L18 6M6 6l12 12"}></path>
          </svg>
          <div class="text-sm {testMessage.startsWith('✓') ? 'text-green-800' : 'text-red-800'}">
            {testMessage}
          </div>
        </div>
      </div>
    {/if}
  </div>
  
  <div class="mt-6">
    <a href="/" class="text-sm text-blue-600 hover:text-blue-700">← Back to Dashboard</a>
  </div>
</div>
