//! Integration tests for TVDB API client
//!
//! These tests make real API calls to TheTVDB and require a valid API key.
//! Set the TVDB_API_KEY environment variable before running these tests.

use movie_mapper::service::tvdb_api::TVDBClient;
use movie_mapper::utils::TVDBError;

/// Get API key from environment or return a default test value
fn get_api_key() -> String {
    std::env::var("TVDB_API_KEY").unwrap_or_else(|_| {
        panic!("TVDB_API_KEY environment variable must be set for integration tests")
    })
}

#[tokio::test]
#[ignore = "Integration test - requires real API calls"]
async fn test_tvdb_authenticate_success() {
    let api_key = get_api_key();
    let mut client = TVDBClient::new(&api_key).expect("Failed to create client");
    
    // This should succeed with a valid API key
    let result = client.authenticate().await;
    
    assert!(result.is_ok(), "Authentication should succeed");
    assert!(client.token.is_some(), "Token should be set after authentication");
}

#[tokio::test]
#[ignore = "Integration test - requires real API calls"]
async fn test_tvdb_search_finding_broken_bad() {
    let api_key = get_api_key();
    let mut client = TVDBClient::new(&api_key).expect("Failed to create client");
    
    // Authenticate first
    client.authenticate().await.expect("Authentication failed");
    
    // Search for a well-known show
    let shows = client.search("Breaking Bad").await.expect("Search failed");
    
    assert!(!shows.is_empty(), "Should find at least one show");
    
    // Verify the first result looks reasonable
    let first_show = &shows[0];
    assert_eq!(first_show.series_name, "Breaking Bad", "First result should be Breaking Bad");
    assert!(first_show.id > 0, "Show should have a valid ID");
    assert!(!first_show.overview.is_empty(), "Show should have an overview");
}

#[tokio::test]
#[ignore = "Integration test - requires real API calls"]
async fn test_tvdb_search_no_results() {
    let api_key = get_api_key();
    let mut client = TVDBClient::new(&api_key).expect("Failed to create client");
    
    client.authenticate().await.expect("Authentication failed");
    
    // Search for something that shouldn't exist
    let shows = client.search("NonExistentShow12345XYZ").await.expect("Search should not fail");
    
    // Should return empty array, not error
    assert!(shows.is_empty(), "Should not find any shows for non-existent query");
}

#[tokio::test]
#[ignore = "Integration test - requires real API calls"]
async fn test_tvdb_search_partial_match() {
    let api_key = get_api_key();
    let mut client = TVDBClient::new(&api_key).expect("Failed to create client");
    
    client.authenticate().await.expect("Authentication failed");
    
    // Search with partial name
    let shows = client.search("Breaking").await.expect("Search should not fail");
    
    // Should find Breaking Bad and possibly other shows with "Breaking" in name
    assert!(!shows.is_empty(), "Should find shows with 'Breaking' in name");
    
    // Verify Breaking Bad is in results
    let breaking_in_results = shows.iter().any(|s| s.series_name.contains("Breaking"));
    assert!(breaking_in_results, "Should find shows containing 'Breaking'");
}

#[tokio::test]
#[ignore = "Integration test - requires real API calls"]
async fn test_tvdb_get_show_details() {
    let api_key = get_api_key();
    let mut client = TVDBClient::new(&api_key).expect("Failed to create client");
    
    client.authenticate().await.expect("Authentication failed");
    
    // First search to get a show ID
    let shows = client.search("Breaking Bad").await.expect("Search failed");
    let show_id = shows[0].id;
    
    // Get detailed information
    let details = client.get_show_details(show_id).await.expect("Get show details failed");
    
    assert_eq!(details.id, show_id, "Details should match show ID");
    assert_eq!(details.name, "Breaking Bad", "Show name should match");
    assert!(!details.overview.is_empty(), "Should have an overview");
    assert!(!details.seasons.is_empty(), "Should have at least one season");
}

#[tokio::test]
#[ignore = "Integration test - requires real API calls"]
async fn test_tvdb_get_season_episodes() {
    let api_key = get_api_key();
    let mut client = TVDBClient::new(&api_key).expect("Failed to create client");
    
    client.authenticate().await.expect("Authentication failed");
    
    // First search to get a show ID
    let shows = client.search("Breaking Bad").await.expect("Search failed");
    let show_id = shows[0].id;
    
    // Get episodes for season 1
    let episodes = client.get_season_episodes(show_id, 1).await.expect("Get episodes failed");
    
    assert!(!episodes.is_empty(), "Should have at least one episode in season 1");
    
    // Verify episode structure
    let first_episode = &episodes[0];
    assert_eq!(first_episode.season_number, 1, "Episode should be from season 1");
    assert!(first_episode.number > 0, "Episode should have valid number");
    assert!(!first_episode.name.is_empty(), "Episode should have a name");
}

#[tokio::test]
#[ignore = "Integration test - requires real API calls"]
async fn test_tvdb_token_caching() {
    let api_key = get_api_key();
    let mut client = TVDBClient::new(&api_key).expect("Failed to create client");
    
    // First authentication
    client.authenticate().await.expect("First auth failed");
    let first_token = client.token.clone().expect("Should have token");
    
    // Call search again - should use cached token
    let shows = client.search("Breaking Bad").await.expect("Search failed");
    
    // Verify we got results
    assert!(!shows.is_empty(), "Should find shows");
    
    // Token should still be the same (cached)
    let second_token = client.token.clone().expect("Should still have token");
    assert_eq!(first_token, second_token, "Token should be cached");
}

#[tokio::test]
#[ignore = "Integration test - requires real API calls"]
async fn test_tvdb_multiple_searches() {
    let api_key = get_api_key();
    let mut client = TVDBClient::new(&api_key).expect("Failed to create client");
    
    client.authenticate().await.expect("Authentication failed");
    
    // Perform multiple searches
    let search_terms = vec!["Breaking Bad", "Better Call Saul", "The Wire"];
    
    for term in search_terms {
        let shows = client.search(term).await.expect(&format!("Search for {} failed", term));
        println!("Search for '{}': Found {} results", term, shows.len());
    }
}

#[tokio::test]
#[ignore = "Integration test - requires real API calls"]
async fn test_tvdb_full_workflow() {
    let api_key = get_api_key();
    let mut client = TVDBClient::new(&api_key).expect("Failed to create client");
    
    // 1. Authenticate
    client.authenticate().await.expect("Authentication failed");
    
    // 2. Search for a show
    let shows = client.search("Breaking Bad").await.expect("Search failed");
    assert!(!shows.is_empty(), "Should find shows");
    let show_id = shows[0].id;
    
    // 3. Get show details
    let details = client.get_show_details(show_id).await.expect("Get details failed");
    println!("Show: {} ({})", details.name, details.status);
    println!("Seasons: {}", details.seasons.len());
    
    // 4. Get episodes for first season
    if !details.seasons.is_empty() {
        let season_number = details.seasons[0].number;
        let episodes = client.get_season_episodes(show_id, season_number)
            .await
            .expect("Get episodes failed");
        println!("Season {} has {} episodes", season_number, episodes.len());
        
        // 5. Verify episode structure
        for episode in &episodes {
            println!("  - E{:02}: {}", episode.number, episode.name);
        }
    }
}

#[tokio::test]
#[ignore = "Integration test - requires real API calls"]
async fn test_tvdb_error_handling_invalid_key() {
    // Test with an invalid key to verify error handling
    let mut client = TVDBClient::new("invalid-api-key-12345").expect("Failed to create client");
    
    let result = client.authenticate().await;
    
    // Should fail with authentication error
    assert!(result.is_err(), "Authentication should fail with invalid key");
    
    // The error should be related to authentication
    let err = result.unwrap_err();
    println!("Expected error: {}", err);
}

#[tokio::test]
#[ignore = "Integration test - requires real API calls"]
async fn test_tvdb_rate_limit_simulation() {
    let api_key = get_api_key();
    let mut client = TVDBClient::new(&api_key).expect("Failed to create client");
    
    client.authenticate().await.expect("Authentication failed");
    
    // Make many rapid requests to potentially hit rate limit
    // This test may take some time and should be run with patience
    for i in 0..5 {
        let shows = client.search("Breaking Bad").await;
        
        match shows {
            Ok(_) => {
                println!("Request {}: Success", i + 1);
            }
            Err(e) => {
                println!("Request {}: Error - {}", i + 1, e);
                // If we hit rate limit, that's actually expected behavior
                break;
            }
        }
        
        // Small delay between requests
        tokio::time::sleep(tokio::time::Duration::from_millis(100)).await;
    }
}