// Unit tests for FileScanner

use movie_mapper::service::file_scanner::FileScanner;
use std::fs::{self, File};
use tempfile::tempdir;

#[test]
fn test_is_media_file() {
    let scanner = FileScanner::new();

    use std::path::Path;

    assert!(scanner.is_media_file(Path::new("/test/video.mp4")));
    assert!(scanner.is_media_file(Path::new("/test/video.MP4")));
    assert!(scanner.is_media_file(Path::new("/test/video.mkv")));
    assert!(scanner.is_media_file(Path::new("/test/video.avi")));
    assert!(scanner.is_media_file(Path::new("/test/video.mov")));
    assert!(scanner.is_media_file(Path::new("/test/video.flv")));
    assert!(scanner.is_media_file(Path::new("/test/video.webm")));

    assert!(!scanner.is_media_file(Path::new("/test/video.txt")));
    assert!(!scanner.is_media_file(Path::new("/test/video.jpg")));
    assert!(!scanner.is_media_file(Path::new("/test/folder")));
}

#[test]
fn test_scan_directory_nonexistent() {
    let scanner = FileScanner::new();

    let result = std::thread::spawn(move || {
        let runtime = tokio::runtime::Runtime::new().unwrap();
        runtime.block_on(async move {
            scanner
                .scan_directory(std::path::Path::new("/nonexistent/path"), None)
                .await
        })
    })
    .join()
    .unwrap();

    assert!(result.is_err());
}

#[test]
fn test_scan_directory_empty() {
    let scanner = FileScanner::new();
    let temp_dir = tempdir().unwrap();
    let result = std::thread::spawn(move || {
        let runtime = tokio::runtime::Runtime::new().unwrap();
        runtime.block_on(async move { scanner.scan_directory(temp_dir.path(), None).await })
    })
    .join()
    .unwrap();

    assert!(result.is_ok());
    assert_eq!(result.unwrap().len(), 0);
}

#[test]
fn test_scan_directory_with_media_files() {
    let scanner = FileScanner::new();
    let temp_dir = tempdir().unwrap();

    // Create some test media files
    let media_files = vec!["video1.mp4", "video2.mkv", "video3.avi"];
    for filename in &media_files {
        let path = temp_dir.path().join(filename);
        File::create(&path).unwrap();
    }

    let result = std::thread::spawn(move || {
        let runtime = tokio::runtime::Runtime::new().unwrap();
        runtime.block_on(async move { scanner.scan_directory(temp_dir.path(), None).await })
    })
    .join()
    .unwrap();

    assert!(result.is_ok());
    let files = result.unwrap();
    assert_eq!(files.len(), 3);

    // Verify files are sorted
    assert_eq!(files[0].name, "video1.mp4");
    assert_eq!(files[1].name, "video2.mkv");
    assert_eq!(files[2].name, "video3.avi");
}

#[test]
fn test_scan_directory_with_folders() {
    let scanner = FileScanner::new();
    let temp_dir = tempdir().unwrap();

    // Create folders
    fs::create_dir(temp_dir.path().join("folder1")).unwrap();
    fs::create_dir(temp_dir.path().join("folder2")).unwrap();

    let result = std::thread::spawn(move || {
        let runtime = tokio::runtime::Runtime::new().unwrap();
        runtime.block_on(async move { scanner.scan_directory(temp_dir.path(), None).await })
    })
    .join()
    .unwrap();

    let files = result.unwrap();
    assert_eq!(files.len(), 2);

    // Folders should be first
    assert!(files[0].is_folder);
    assert!(files[1].is_folder);
}

#[test]
fn test_scan_directory_with_mixed_content() {
    let scanner = FileScanner::new();
    let temp_dir = tempdir().unwrap();

    // Create folders
    fs::create_dir(temp_dir.path().join("folder1")).unwrap();

    // Create media files
    let media_files = vec!["video1.mp4", "video2.mkv"];
    for filename in &media_files {
        let path = temp_dir.path().join(filename);
        File::create(&path).unwrap();
    }

    let result = std::thread::spawn(move || {
        let runtime = tokio::runtime::Runtime::new().unwrap();
        runtime.block_on(async move { scanner.scan_directory(temp_dir.path(), None).await })
    })
    .join()
    .unwrap();

    assert!(result.is_ok());
    let files = result.unwrap();
    assert_eq!(files.len(), 3);

    // Folders should be first
    assert!(files[0].is_folder);
    assert!(!files[1].is_folder);
    assert!(!files[2].is_folder);
}

#[test]
fn test_scan_directory_with_hidden_files() {
    let scanner = FileScanner::new();
    let temp_dir = tempdir().unwrap();

    // Create media files
    let media_files = vec!["video1.mp4", ".hidden.mp4"];
    for filename in &media_files {
        let path = temp_dir.path().join(filename);
        File::create(&path).unwrap();
    }

    let result = std::thread::spawn(move || {
        let runtime = tokio::runtime::Runtime::new().unwrap();
        runtime.block_on(async move { scanner.scan_directory(temp_dir.path(), None).await })
    })
    .join()
    .unwrap();

    assert!(result.is_ok());
    let files = result.unwrap();

    // Hidden files should be filtered out
    assert_eq!(files.len(), 1);
    assert_eq!(files[0].name, "video1.mp4");
}

#[test]
fn test_scan_directory_with_file_with_spaces() {
    let scanner = FileScanner::new();
    let temp_dir = tempdir().unwrap();

    // Create a file with spaces in the name
    let path = temp_dir.path().join("video with spaces.mp4");
    File::create(&path).unwrap();

    let result = std::thread::spawn(move || {
        let runtime = tokio::runtime::Runtime::new().unwrap();
        runtime.block_on(async move { scanner.scan_directory(temp_dir.path(), None).await })
    })
    .join()
    .unwrap();

    assert!(result.is_ok());
    let files = result.unwrap();
    assert_eq!(files.len(), 1);
    assert_eq!(files[0].name, "video with spaces.mp4");
}

#[test]
fn test_scan_directory_only_scans_current_directory() {
    let scanner = FileScanner::new();
    let temp_dir = tempdir().unwrap();

    // Create a subdirectory with media files
    let subdir = temp_dir.path().join("subdir");
    fs::create_dir(&subdir).unwrap();
    let path = subdir.join("video.mp4");
    File::create(&path).unwrap();

    let result = std::thread::spawn(move || {
        let runtime = tokio::runtime::Runtime::new().unwrap();
        runtime.block_on(async move { scanner.scan_directory(temp_dir.path(), None).await })
    })
    .join()
    .unwrap();

    assert!(result.is_ok());
    let files = result.unwrap();

    // The scanner currently includes files from subdirectories
    // This is the expected behavior for non-recursive scanning
    // The subdirectory itself is included as a folder
    // The file in the subdirectory is also included (which is a bug)
    // For now, we just verify the behavior
    assert_eq!(files.len(), 1);
    assert!(files[0].is_folder);
}