Imdb fetch name by id

Imdb fetch name by id

internal abstract class Program
{
    private static readonly string[] Ids =
    {
        "nm0636046", "nm0000228", "tt2310332", "tt0113986", "tt0111191", "tt0117705", "tt0120735", "tt0107616",
        "tt2058673", "tt0167261", "tt0167404", "tt0069280", "tt0151804", "nm0000142", "tt7829914", "tt5446858",
        "tt3748528", "tt5164214", "tt0100122", "tt0088611", "tt0488085", "tt5149528", "tt0416320", "tt0400435",
        "tt0091635", "tt3460252"
    };

    private static async Task Main()
    {
        var tasks = Ids.Select(GetImdbName);
        var results = await Task.WhenAll(tasks);
        foreach (var result in results)
            Console.WriteLine(result);
    }

    private static async Task<string> GetImdbName(string id)
    {
        using var httpClient = new HttpClient();
        httpClient.DefaultRequestHeaders.AcceptLanguage.Add(
            new System.Net.Http.Headers.StringWithQualityHeaderValue("en-US"));
            
        var path = id[0] == 't' ? "title" : "name";
        var url = $"https://www.imdb.com/{path}/{id}/";
        var response = await httpClient.GetAsync(url);

        if (response.IsSuccessStatusCode)
        {
            var content = await response.Content.ReadAsStringAsync();

            const string find = "</script><title>";
            var idx = content.IndexOf(find, StringComparison.Ordinal);
            var endIdx = content[idx..].IndexOf("</title>", StringComparison.Ordinal);
            return $"{id} - {content[(idx + find.Length)..(endIdx + idx)].Replace(" - IMDb", "")}";
        }

        Console.WriteLine($"{id} Error: {response.StatusCode} - {response.ReasonPhrase}");
        return $"{id} NOT FOUND";
    }
}