Merge pull request #132 from SWD392-Domus/feature/admin-dashboard

Feature/admin dashboard

Domus.Api/Controllers/AdminController.cs

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+using Domus.Api.Controllers.Base;
+using Domus.Service.Constants;
+using Domus.Service.Interfaces;
+using Domus.Service.Models.Requests.Dashboard;
+using Microsoft.AspNetCore.Authorization;
+using Microsoft.AspNetCore.Mvc;
+
+namespace Domus.Api.Controllers;
+
+[Authorize(Roles = UserRoleConstants.ADMIN, AuthenticationSchemes = "Bearer")]
+[Route("api/[controller]")]
+public class AdminController : BaseApiController
+{
+    private readonly IAdminService _adminService;
+
+    public AdminController(IAdminService adminService)
+    {
+        _adminService = adminService;
+    }
+
+    [HttpGet("dashboard")]
+    public async Task<IActionResult> Dashboard([FromQuery] GetDashboardInfoRequest request)
+    {
+        return await ExecuteServiceLogic(
+            async () => await _adminService.GetDashboardInfo(request).ConfigureAwait(false)
+        ).ConfigureAwait(false);
+    }
+}

Domus.Service/Implementations/AdminService.cs

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+using System.Globalization;
+using Domus.DAL.Interfaces;
+using Domus.Service.Enums;
+using Domus.Service.Interfaces;
+using Domus.Service.Models;
+using Domus.Service.Models.Requests.Dashboard;
+using Domus.Service.Models.Responses;
+using Microsoft.EntityFrameworkCore;
+
+namespace Domus.Service.Implementations;
+
+public class AdminService : IAdminService
+{
+	private readonly IContractRepository _contractRepository;
+	private readonly IQuotationRevisionRepository _quotationRevisionRepository;
+
+	public AdminService(IContractRepository contractRepository, IQuotationRevisionRepository quotationRevisionRepository)
+	{
+		_contractRepository = contractRepository;
+		_quotationRevisionRepository = quotationRevisionRepository;
+	}
+
+    public async Task<ServiceActionResult> GetDashboardInfo(GetDashboardInfoRequest request)
+    {
+	    var contracts = await (await _contractRepository.FindAsync(c =>
+			    !c.IsDeleted
+			    && c.Status == ContractStatus.SIGNED
+			    && c.SignedAt.HasValue
+			    && c.SignedAt.Value.Year == request.Year))
+		    .ToListAsync();
+
+        var dashboardResponse = new DashboardResponse();
+
+		for (var i = 1; i <= 12; i++)
+		{
+			var contractsByMonth = contracts.Where(c => c.SignedAt.HasValue && c.SignedAt.Value.Month == i);
+			var revenueByMonth = await (await _quotationRevisionRepository.FindAsync(qr => 
+					contractsByMonth.Select(c => c.QuotationRevisionId).Contains(qr.Id)))
+				.Select(qr => qr.TotalPrice)
+				.SumAsync();
+
+			dashboardResponse.RevenueByMonths.Add(new()
+			{
+				Revenue = (float)revenueByMonth,
+				MonthAsNumber = i,
+				MonthAsString = GetMonthAsString(i)
+			});
+		}
+
+		dashboardResponse.TotalRevenue = dashboardResponse.RevenueByMonths.Select(rbm => rbm.Revenue).Sum();
+
+        return new ServiceActionResult(true) { Data = dashboardResponse };
+    }
+
+	private string GetMonthAsString(int month)
+	{
+		return month switch
+		{
+			1 => "January",
+			2 => "February",
+			3 => "March",
+			4 => "April",
+			5 => "May",
+			6 => "June",
+			7 => "July",
+			8 => "August",
+			9 => "September",
+			10 => "October",
+			11 => "November",
+			12 => "December",
+			_ => throw new ArgumentOutOfRangeException(nameof(month), month, null)
+		};
+	}
+}

Domus.Service/Interfaces/IAdminService.cs

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+using Domus.Common.Interfaces;
+using Domus.Service.Models;
+using Domus.Service.Models.Requests.Dashboard;
+
+namespace Domus.Service.Interfaces;
+
+public interface IAdminService : IAutoRegisterable
+{
+    Task<ServiceActionResult> GetDashboardInfo(GetDashboardInfoRequest request);
+}

Domus.Service/Models/Requests/Dashboard/GetDashboardInfoRequest.cs

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+using System.ComponentModel.DataAnnotations;
+
+namespace Domus.Service.Models.Requests.Dashboard;
+
+public class GetDashboardInfoRequest
+{
+    [Range(typeof(int),"1970", "2030")]
+    public int Year { get; set; }
+}

Domus.Service/Models/Responses/DashboardResponse.cs

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+namespace Domus.Service.Models.Responses;
+
+public class DashboardResponse
+{
+    public float TotalRevenue { get; set; }
+    public int NewUsersCount { get; set; }
+    public IList<RevenueByMonth> RevenueByMonths { get; set; } = new List<RevenueByMonth>();
+}
+
+public class RevenueByMonth
+{
+    public string MonthAsString { get; set; }
+    public int MonthAsNumber { get; set; }
+    public float Revenue { get; set; }
+}