feat(api, bll): StatHostController, StatApplicationController добавлена статистика за период. ICalendarService - публичный метод для получения списка дат, метод получения даты с учетом часового пояса.

PARR.API/Controllers/V1/Statistics/StatApplicationController.cs

@@ -2,9 +2,11 @@
 using Microsoft.AspNetCore.Mvc;
 using Microsoft.EntityFrameworkCore;
 using PARR.API.Contracts.V1;
+using PARR.API.Contracts.V1.Requests.BaseRequests;
 using PARR.API.Contracts.V1.Responses.Base;
 using PARR.API.Contracts.V1.Responses.Statistics;
 using PARR.API.Controllers.V1.Base;
+using PARR.BLL.Services.Interfaces;
 using PARR.Constants;
 using PARR.DAL.Services.Interfaces;
 
@@ -17,10 +19,12 @@ namespace PARR.API.Controllers.V1.Statistics
     public class StatApplicationController : BaseApiController
     {
         private readonly IApplicationService applicationService;
+        private readonly ICalendarService calendarService;
 
-        public StatApplicationController(IApplicationService applicationService)
+        public StatApplicationController(IApplicationService applicationService, ICalendarService calendarService)
         {
             this.applicationService = applicationService;
+            this.calendarService = calendarService;
         }
 
         /// <summary>
@@ -41,5 +45,50 @@ namespace PARR.API.Controllers.V1.Statistics
 
             return Ok(new Response<StatApplicationResponse>(response, true));
         }
+
+
+        /// <summary>
+        /// Получить статистику за период
+        /// </summary>
+        /// <param name="timeZoneQuery"></param>
+        /// <param name="startPeriodDays"></param>
+        /// <returns></returns>
+        [HttpGet(ApiRoutes.StatApplication.GetForPeriod)]
+        public async Task<IActionResult> GetForPeriod([FromQuery] TimeZoneOffsetClient timeZoneQuery, [FromQuery] int startPeriodDays = 3)
+        {
+            var endPeriod = calendarService.GetDateWithTimeZoneOffset(DateTimeOffset.UtcNow, timeZoneQuery.TimeZoneOffsetHours);
+            var startPeriod = endPeriod.AddDays(-startPeriodDays);
+
+            var query = applicationService.Get()
+                            .Where(t => t.DateCreated.DateTime.Date >= startPeriod.Date && t.DateCreated.DateTime.Date <= endPeriod.Date)
+                            .GroupBy(t => t.DateCreated.Date)
+                            .Select(t => new
+                            {
+                                Date = t.Key,
+                                ApplicationCount = t.Count()
+                            });
+
+            var result = await query.ToListAsync();
+
+            var daysList = calendarService.GetDatesForPeriod(startPeriod, endPeriod);
+
+            var response = new List<StatApplicationPeriodResponse>();
+
+            daysList.ForEach(date =>
+            {
+                response.Add(new StatApplicationPeriodResponse
+                {
+                    Date = date,
+                    CreatedApplicationsCount = result.FirstOrDefault(t => DateOnly.FromDateTime(t.Date) == date)?.ApplicationCount ?? 0
+                });
+            });
+
+            response = response.OrderBy(t => t.Date).ToList();
+
+            return Ok(new Response<List<StatApplicationPeriodResponse>>(response, true));
+        }
+
+
+
     }
 }