add: implement AutoUpdateDeployStatusCommand for automatic deployment status updates

ProgramManager/src/Application/GozareshgirProgramManager.Application/Modules/Projects/Commands/AutoUpdateDeployStatus/AutoUpdateDeployStatusCommand.cs

@@ -0,0 +1,52 @@
+using System.Linq;
+using GozareshgirProgramManager.Application._Common.Interfaces;
+using GozareshgirProgramManager.Application._Common.Models;
+using GozareshgirProgramManager.Domain.ProjectAgg.Entities;
+using GozareshgirProgramManager.Domain.ProjectAgg.Enums;
+using Microsoft.EntityFrameworkCore;
+
+namespace GozareshgirProgramManager.Application.Modules.Projects.Commands.AutoUpdateDeployStatus;
+
+public record AutoUpdateDeployStatusCommand : IBaseCommand;
+
+public class AutoUpdateDeployStatusCommandHandler : IBaseCommandHandler<AutoUpdateDeployStatusCommand>
+{
+    private readonly IProgramManagerDbContext _dbContext;
+
+    public AutoUpdateDeployStatusCommandHandler(IProgramManagerDbContext dbContext)
+    {
+        _dbContext = dbContext;
+    }
+
+    public async Task<OperationResult> Handle(AutoUpdateDeployStatusCommand request,
+        CancellationToken cancellationToken)
+    {
+        // Fetch all sections whose phase is still marked as not completed
+        var sections = await _dbContext.TaskSections
+            .Include(ts => ts.Task)
+            .ThenInclude(t => t.Phase)
+            .Where(ts => ts.Task.Phase.DeployStatus == ProjectDeployStatus.NoTCompleted)
+            .ToListAsync(cancellationToken);
+
+        if (sections.Count == 0)
+            return OperationResult.Success();
+
+        var phasesToUpdate = sections
+            .GroupBy(ts => ts.Task.PhaseId)
+            .Where(g => g.All(s => s.Status == TaskSectionStatus.Completed))
+            .Select(g => g.First().Task.Phase)
+            .Distinct()
+            .ToList();
+
+        if (phasesToUpdate.Count == 0)
+            return OperationResult.Success();
+
+        foreach (var phase in phasesToUpdate)
+        {
+            phase.UpdateDeployStatus(ProjectDeployStatus.PendingDevDeploy);
+        }
+
+        await _dbContext.SaveChangesAsync(cancellationToken);
+        return OperationResult.Success();
+    }
+}