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 TEAMModelOS.SDK.DI;
using System.Text.Json;
using TEAMModelOS.SDK.Models;
using Azure.Cosmos;
using TEAMModelOS.SDK.Extension;
using TEAMModelOS.SDK.Models.Cosmos.Common;
using System.Collections.Generic;
using TEAMModelOS.SDK.Helper.Common.DateTimeHelper;

namespace TEAMModelFunction
{
    public class LessonHttpTrigger
    {
        private readonly AzureCosmosFactory _azureCosmos;
        private readonly DingDing _dingDing;
        public LessonHttpTrigger(AzureCosmosFactory azureCosmos, DingDing dingDing)
        {
            _azureCosmos = azureCosmos;
            _dingDing = dingDing;
        }
        [FunctionName("insert-class-count")]
        public async Task<IActionResult> Run(
            [HttpTrigger(AuthorizationLevel.Function, "get", "post", Route = null)] HttpRequest req,
            ILogger log)
        {
            log.LogInformation("C# HTTP trigger function processed a request.");
            var client = _azureCosmos.GetCosmosClient();
            string requestBody = await new StreamReader(req.Body).ReadToEndAsync();

            var data = System.Text.Json.JsonSerializer.Deserialize<LessonRecord>(requestBody);
            int day = DateTimeOffset.FromUnixTimeMilliseconds(data.startTime).DayOfYear;
            int year = DateTimeOffset.FromUnixTimeMilliseconds(data.startTime).Year;
            int days = DateTimeHelper.getDays(year);
            //int years = DateTimeOffset.UtcNow.DayOfYear;
            string tbname = string.Empty;
            string code = string.Empty;
            if (data.scope.Equals("school"))
            {
                code = $"LessonCount-{data.school}";
                tbname = "School";
            }
            else
            {
                code = $"LessonCount";
                tbname = "Teacher";
            }
            var response = await client.GetContainer(Constant.TEAMModelOS, tbname).ReadItemStreamAsync(data.id.ToString(), new PartitionKey(code));
            if (response.Status == 200)
            {
                using var json = await JsonDocument.ParseAsync(response.ContentStream);
                LessonCount count = json.ToObject<LessonCount>();
                if (count.courseIds.Count > 0)
                {
                    if (!count.courseIds.Contains(data.courseId))
                    {
                        count.courseIds.Add(data.courseId);
                        count.beginCount[day] += 1;
                    }
                }
                await client.GetContainer("TEAMModelOS", tbname).ReplaceItemAsync(count, count.id, new PartitionKey(code));
            }
            else
            {
                LessonCount count = new LessonCount
                {
                    id = data.tmdid,
                    code = "LessonCount-" + data.school,
                    year = year
                };
                double[] da = new double[days];
                List<double> list = new List<double>(da);
                list[day] += 1;
                count.beginCount.AddRange(list);
                count.courseIds.Add(data.courseId);
                await client.GetContainer("TEAMModelOS", "tbname").CreateItemAsync(count, new PartitionKey(code));
            }
            return new OkObjectResult(data);
        }
    }
}