feat: implemented available resumes on Back-end

JOBot.Backend/Services/ResumeService.cs

@@ -0,0 +1,45 @@
+using System.Text.Json;
+using JOBot.Backend.DAL.Context;
+using JOBot.Backend.DTOs.HeadHunterApi;
+using JOBot.Backend.Infrastructure.Config;
+using Microsoft.EntityFrameworkCore;
+using Microsoft.Extensions.Options;
+
+namespace JOBot.Backend.Services;
+
+public class ResumeService(
+    AppDbContext dbContext,
+    IOptions<HeadHunterConfig> config)
+{
+    public async Task<(Status Status, List<Resume>? Resume)> GetAvailableResumes(long userId)
+    {
+        var user = await dbContext.Users.FirstOrDefaultAsync(x => x.UserId == userId);
+        if (user == null)
+        {
+            return new(Status.UserNotFound, null);
+        }
+
+        using var client = new HttpClient(); //TODO: Написать wrapper для работы с HH API
+        client.BaseAddress = new UriBuilder(config.Value.Links.HeadHunterApiDomain)
+        {
+            Port = -1,
+            Scheme = "https"
+        }.Uri;
+        client.DefaultRequestHeaders.UserAgent.ParseAdd("Jobot BackEnd Service");
+
+        using var res = await client.GetAsync("/resumes/mine");
+
+        var responseDto = JsonSerializer.Deserialize<ListOfResumeResponseDto>(await res.Content.ReadAsStringAsync());
+        if (responseDto == null)
+            return new(Status.Error, null);
+        
+        return new(Status.Success, responseDto.Items);
+    }
+
+    public enum Status
+    {
+        Success,
+        UserNotFound,
+        Error
+    }
+}