using Spectre.Console;
using Serilog;

namespace EdgeInstaller;

public static partial class EdgeInstall
{


    private static async Task<string> GetRelease()
    {
        string releaseURL = "dists/stable/Release";
        using HttpResponseMessage response = await _client.GetAsync(releaseURL);
        await Task.Delay(5000);
        Log.Information("Getting release from {url}", response.Headers.Location);
        response.EnsureSuccessStatusCode(); //WARN: this can throw an exception, Please wrap in try/catch or rewrite function

        var body = await response.Content.ReadAsStringAsync();
        Log.Debug("{body}", body);
        return body;
    }

    static async Task<string> downloadFile(string URL, string DestinationDirectory)
    {

        Uri file = new Uri(URL);

        string fileLocation = Path.Combine(DestinationDirectory, file.Segments.Last());

        using HttpResponseMessage response = await _client.GetAsync(URL);
        response.EnsureSuccessStatusCode();

        await Task.Delay(2000);

        var fileData = response.Content.ReadAsStreamAsync();

        using var fileStream = new FileStream(fileLocation, FileMode.OpenOrCreate);
        await response.Content.CopyToAsync(fileStream);

        return fileLocation;
    }


    // This overload of downloadFile allows you to get the progess
    static async Task<string> downloadFile(string URL, string DestinationDirectory, ProgressTask task)
    {
        Uri file = new Uri(URL, UriKind.RelativeOrAbsolute); // allow this to work regardless of relativity

        if (!file.IsAbsoluteUri && _client.BaseAddress is not null)
        { // Ego te absolvo
            file = new Uri(_client.BaseAddress, URL);
        }

        string fileLocation = Path.Combine(DestinationDirectory, file.Segments.Last());

        using (HttpResponseMessage response = await _client.GetAsync(URL, HttpCompletionOption.ResponseHeadersRead))
        {
            response.EnsureSuccessStatusCode();


            task.MaxValue = response.Content.Headers.ContentLength ?? 0;
            task.StartTask();
            await Task.Delay(2000);

            AnsiConsole.MarkupLineInterpolated($"Starting download of [u]{URL}[/] ({task.MaxValue} Bytes)");

            using (var contentStream = await response.Content.ReadAsStreamAsync())
            using (var fileStream = File.Open(fileLocation, FileMode.OpenOrCreate))
            {
                var buffer = new byte[downloadBufferBYTES];
                while (true)
                {
                    var read = await contentStream.ReadAsync(buffer, 0, buffer.Length);
                    await Task.Delay(downloadDelayMS);
                    if (read == 0)
                    {
                        AnsiConsole.MarkupLineInterpolated($"Download of [u]{URL}[/] [green b]Complete![/]");
                        break;
                    }
                    task.Increment(read);

                    await fileStream.WriteAsync(buffer, 0, read);
                }
            }
        }

        return fileLocation;
    }

    // This overload of downloadFile allows you to get the progess
    static async Task<MemoryStream> downloadStream(string URL, ProgressTask task)
    {
        MemoryStream outputStream = new();
        using (HttpResponseMessage response = await _client.GetAsync(URL, HttpCompletionOption.ResponseHeadersRead))
        {
            response.EnsureSuccessStatusCode();


            task.MaxValue = response.Content.Headers.ContentLength ?? 0;
            task.StartTask();
            await Task.Delay(2000);

            AnsiConsole.MarkupLineInterpolated($"Starting download of [u]{URL}[/] to memory ({task.MaxValue} Bytes)");

            int bufferSize = (int)Math.Round(task.MaxValue / 100);
            using (var contentStream = await response.Content.ReadAsStreamAsync())
            {
                var buffer = new byte[bufferSize];
                while (true)
                {
                    var read = await contentStream.ReadAsync(buffer, 0, buffer.Length);
                    await Task.Delay(downloadDelayMS);
                    if (read == 0)
                    {
                        AnsiConsole.MarkupLineInterpolated($"Download of [u]{URL}[/] [green b]Complete![/]");
                        break;
                    }
                    task.Increment(read);

                    await outputStream.WriteAsync(buffer, 0, read);
                }
            }
        }
        return outputStream;
    }
}