Integration1/Controllers/TasksV2Controller.cs - lab4 - ArtSerg/IntegrationProject

Integration1/Controllers/TasksV2Controller.cs
81 строка3 KB
artS3rg
Added idempotency header filter + swagger integration + middleware improvements
20 ноя 2025, 05:16
20 ноя 2025, 05:16e27f9a4
using Integration1.Data;
using Integration1.Models;
using Microsoft.AspNetCore.Authorization;
using Microsoft.AspNetCore.Mvc;
using Microsoft.EntityFrameworkCore;

namespace Integration1.Controllers
{
    [ApiController]
    [Route("api/v2/tasks")]
    [Authorize]
    public class TasksV2Controller : ControllerBase
    {
        private readonly AppDbContext _db;

        public TasksV2Controller(AppDbContext db) => _db = db;

        private string GetUserId() => User.FindFirst("UserId")?.Value ?? "";

        [HttpGet]
        public async Task<IActionResult> GetTasks([FromQuery] int page = 1, [FromQuery] int pageSize = 10, [FromQuery] string? include = null)
        {
            if (page < 1) page = 1;
            if (pageSize < 1) pageSize = 10;
            if (pageSize > 100) pageSize = 100;

            var userId = GetUserId();

            var query = _db.Tasks.Where(t => t.UserId == userId).AsNoTracking();

            var totalCount = await query.CountAsync();
            var totalPages = (int)Math.Ceiling(totalCount / (double)pageSize);

            var tasks = await query
                .OrderByDescending(t => t.Id)
                .Skip((page - 1) * pageSize)
                .Take(pageSize)
                .ToListAsync();

            var projected = ProjectTasks(tasks, include);

            Response.Headers["X-Total-Count"] = totalCount.ToString();
            Response.Headers["X-Total-Pages"] = totalPages.ToString();
            Response.Headers["X-Current-Page"] = page.ToString();

            return Ok(new
            {
                items = projected,
                totalCount,
                page,
                pageSize
            });
        }

        private IEnumerable<object> ProjectTasks(IEnumerable<TaskItem> tasks, string? include)
        {
            var fields = (include ?? "")
                .Split(',', StringSplitOptions.RemoveEmptyEntries | StringSplitOptions.TrimEntries)
                .Select(f => f.ToLowerInvariant())
                .ToHashSet();

            bool all = fields.Count == 0;

            foreach (var t in tasks)
            {
                var dict = new Dictionary<string, object?>();

                if (all || fields.Contains("id")) dict["id"] = t.Id;
                if (all || fields.Contains("title")) dict["title"] = t.Title;
                if (all || fields.Contains("description")) dict["description"] = t.Description;
                if (all || fields.Contains("priority")) dict["priority"] = t.Priority.ToString();
                if (all || fields.Contains("iscompleted")) dict["isCompleted"] = t.IsCompleted;
                if (all || fields.Contains("duedate")) dict["dueDate"] = t.DueDate;
                if (all || fields.Contains("category")) dict["category"] = t.Category;
                if (all || fields.Contains("userid")) dict["userId"] = t.UserId;

                yield return dict;
            }
        }
    }
}