// 02_download_operations.rhai
// Tests for download operations in the OS module

// Custom assert function
fn assert_true(condition, message) {
    if !condition {
        print(`ASSERTION FAILED: ${message}`);
        throw message;
    }
}

// Create a test directory
let test_dir = "rhai_test_download";
mkdir(test_dir);
print(`Created test directory: ${test_dir}`);

// Test which function to ensure curl is available
let curl_path = which("curl");
if curl_path == "" {
    print("Warning: curl not found, download tests may fail");
} else {
    print(`✓ which: curl found at ${curl_path}`);
}

// Test cmd_ensure_exists function
let ensure_result = cmd_ensure_exists("curl");
print(`✓ cmd_ensure_exists: ${ensure_result}`);

// Test download function with a small file
let download_url = "https://raw.githubusercontent.com/rust-lang/rust/master/LICENSE-MIT";
let download_dest = test_dir + "/license.txt";
let min_size_kb = 1; // Minimum size in KB

print(`Downloading ${download_url}...`);
let download_result = download_file(download_url, download_dest, min_size_kb);
assert_true(exist(download_dest), "Download failed");
print(`✓ download_file: ${download_result}`);

// Verify the downloaded file
let file_content = file_read(download_dest);
assert_true(file_content.contains("Permission is hereby granted"), "Downloaded file content is incorrect");
print("✓ Downloaded file content verified");

// Test chmod_exec function
let chmod_result = chmod_exec(download_dest);
print(`✓ chmod_exec: ${chmod_result}`);

// Clean up
delete(test_dir);
assert_true(!exist(test_dir), "Directory deletion failed");
print(`✓ Cleanup: Directory ${test_dir} removed`);

print("All download tests completed successfully!");