using UnityEngine;
using UnityEngine.Networking;
using System.Text;
using System.Threading.Tasks;

namespace DDD
{
    public static class GoogleSheetWebClient
    {
        public static async Task<string> Get(string url)
        {
            var req = UnityWebRequest.Get(url);
            var op = req.SendWebRequest();

            while (!op.isDone)
                await Task.Yield();

            if (req.result != UnityWebRequest.Result.Success)
            {
                Debug.LogError("GET Failed: " + req.error);
                return null;
            }

            return req.downloadHandler.text;
        }

        public static async Task<string> Post(string url, string json)
        {
            var req = new UnityWebRequest(url, "POST");
            byte[] bodyRaw = Encoding.UTF8.GetBytes(json);
            req.uploadHandler = new UploadHandlerRaw(bodyRaw);
            req.downloadHandler = new DownloadHandlerBuffer();
            req.SetRequestHeader("Content-Type", "application/json");

            var op = req.SendWebRequest();
            while (!op.isDone)
                await Task.Yield();

            if (req.result != UnityWebRequest.Result.Success)
            {
                Debug.LogError("POST Failed: " + req.error);
                return null;
            }

            return req.downloadHandler.text;
        }
    }
}