using System;
using System.IO;
using System.Threading.Tasks;
using Microsoft.AspNetCore.Mvc;
using Microsoft.Azure.WebJobs;
using Microsoft.Azure.WebJobs.Extensions.Http;
using Microsoft.AspNetCore.Http;
using Microsoft.Extensions.Logging;
using Newtonsoft.Json;
using System.Net.Http;

namespace jsonfunction
{
    public static class ConvertToJsonFunc
    {
        [FunctionName("FuncJsonCon")]
        public static async Task<IActionResult> Run(
            [HttpTrigger(AuthorizationLevel.Anonymous, nameof(HttpMethods.Post), Route = null)] HttpRequestMessage req,
            ILogger log)
        {
            log.LogInformation("C# HTTP trigger function processed a request.");

                      string name = default;
                 var name1 = await req.Content.ReadAsAsync<GetJsonString>();
                  name = "[" + name1.body + "]";

             dynamic data = JsonConvert.DeserializeObject(name);
             ObjectResult result;
            string responseMessage = default;

            string newString = String.Empty;
            int i = 0; 
            foreach(var res in data)
            {
                if (res != null)
                {
                    if (i == 0)
                        newString = Convert.ToString(res);
                    else
                        newString = newString + "," + Convert.ToString(res);
                }
                i++;
            }

            newString = "[" + newString + "]";

            if (String.IsNullOrEmpty(newString))
            {
                responseMessage = "Please Provide a value.";
                result = new BadRequestObjectResult(responseMessage);
            }
            else
            {
                responseMessage = $"{newString}";
                result = new OkObjectResult(responseMessage);
            }

            return result;
        }

        public class GetJsonString
        {
            public string body { get; set; }
        }
    }
}