From 32027f7384372d5eea6e16bf62af535c654508e1 Mon Sep 17 00:00:00 2001
From: eee4 <41441600+eee4@users.noreply.github.com>
Date: Sat, 31 May 2025 18:19:15 +0200
Subject: [PATCH] feat: add first volunteer skill endpoint (add_skill) along
 with dtos

---
 WebApp/DTOs/SingleSkillDto.cs           |  8 ++++++
 WebApp/DTOs/SkillSummaryDto.cs          |  9 ++++++
 WebApp/Endpoints/AuthEndpoints.cs       | 37 +++++++++++++++++++++++++
 WebApp/Mapping/SkillMapping.cs          | 25 +++++++++++++++++
 WebApp/Mapping/VolunteerSkillMapping.cs | 17 ++++++++++++
 5 files changed, 96 insertions(+)
 create mode 100644 WebApp/DTOs/SingleSkillDto.cs
 create mode 100644 WebApp/DTOs/SkillSummaryDto.cs
 create mode 100644 WebApp/Mapping/SkillMapping.cs
 create mode 100644 WebApp/Mapping/VolunteerSkillMapping.cs

diff --git a/WebApp/DTOs/SingleSkillDto.cs b/WebApp/DTOs/SingleSkillDto.cs
new file mode 100644
index 0000000..a6d5d47
--- /dev/null
+++ b/WebApp/DTOs/SingleSkillDto.cs
@@ -0,0 +1,8 @@
+using System.ComponentModel.DataAnnotations;
+
+namespace WebApp.DTOs;
+
+public record class SingleSkillDto
+(
+    [Required] int Skill
+);
diff --git a/WebApp/DTOs/SkillSummaryDto.cs b/WebApp/DTOs/SkillSummaryDto.cs
new file mode 100644
index 0000000..597d39b
--- /dev/null
+++ b/WebApp/DTOs/SkillSummaryDto.cs
@@ -0,0 +1,9 @@
+using System.ComponentModel.DataAnnotations;
+
+namespace WebApp.DTOs;
+
+public record class SkillSummaryDto
+(
+    [Required] int SkillId,
+    [Required] string SkillName
+);
diff --git a/WebApp/Endpoints/AuthEndpoints.cs b/WebApp/Endpoints/AuthEndpoints.cs
index 2363ce7..f4aecd2 100644
--- a/WebApp/Endpoints/AuthEndpoints.cs
+++ b/WebApp/Endpoints/AuthEndpoints.cs
@@ -1,5 +1,6 @@
 using Microsoft.AspNetCore.Http.HttpResults;
 using Microsoft.EntityFrameworkCore;
+using System.Runtime.Intrinsics.Arm;
 using System.Security.Cryptography;
 using System.Text;
 using WebApp.Data;
@@ -123,6 +124,42 @@ namespace WebApp.Endpoints
 
             });
 
+            group.MapPost("/add_skill", async (SingleSkillDto dto, HttpContext httpContext, ApplicationDbContext context, GeneralUseHelpers guh) =>
+            {
+                // Uzyskaj użytkownika z tokenu
+                Token? token = await guh.GetTokenFromHTTPContext(httpContext);
+                User? user = await guh.GetUserFromToken(token);
+
+                // Tylko wolontariusze powinno móc dodawać swoje skille
+                if (user == null || user.IsOrganisation) {
+                    return Results.Json(new { message = "Unauthorized" }, statusCode: 401);
+                }
+
+                // Szukamy skilla w bazie o ID takim, jak w otrzymanym DTO
+                Skill? skill = await context.Skills.FindAsync(dto.Skill);
+                if (skill is null)
+                {
+                    return Results.Json(new { message = "Skill not found" }, statusCode: 404);
+                }
+
+                // Sprawdzamy, czy ten użytkownik nie ma już takiego skilla. Jeżeli ma, nie ma sensu dodawać go kilkukrotnie.
+                VolunteerSkill? vs = await context.VolunteerSkills.FirstOrDefaultAsync(v => v.UserId == user.UserId && v.SkillId == dto.Skill);
+                if (vs is null)
+                {
+                    // Nie ma - zatem musimy dodać nowy VolunteerSkill do bazy
+                    VolunteerSkill newVs = dto.ToVolunteerSkillEntity(user.UserId);
+                    context.VolunteerSkills.Add(newVs);
+                    await context.SaveChangesAsync();
+
+                } else
+                {
+                    // Ma - (ta para UserId <-> SkillId już istnieje w bazie) użytkownik już ma ten skill
+                    return Results.Json(new { message = "User already has this skill" }, statusCode: 400);
+                }
+
+                return Results.Json(new { message = "Skill added successfully!" }, statusCode: 201);
+            });
+
             return group;
         }
         
diff --git a/WebApp/Mapping/SkillMapping.cs b/WebApp/Mapping/SkillMapping.cs
new file mode 100644
index 0000000..fb96056
--- /dev/null
+++ b/WebApp/Mapping/SkillMapping.cs
@@ -0,0 +1,25 @@
+using WebApp.DTOs;
+using WebApp.Entities;
+
+namespace WebApp.Mapping
+{
+    public static class SkillMapping
+    {
+        public static Skill ToSkillEntity(this SingleSkillDto SSDto, string name)
+        {
+            return new Skill()
+            {
+                SkillId = SSDto.Skill,
+                Name = name
+            };
+        }
+
+        public static SkillSummaryDto ToSkillSummaryDto(this Skill s)
+        {
+            return new SkillSummaryDto(
+                s.SkillId,
+                s.Name
+            );
+        }
+    }
+}
diff --git a/WebApp/Mapping/VolunteerSkillMapping.cs b/WebApp/Mapping/VolunteerSkillMapping.cs
new file mode 100644
index 0000000..a92198a
--- /dev/null
+++ b/WebApp/Mapping/VolunteerSkillMapping.cs
@@ -0,0 +1,17 @@
+using WebApp.DTOs;
+using WebApp.Entities;
+
+namespace WebApp.Mapping
+{
+    public static class VolunteerSkillMapping
+    {
+        public static VolunteerSkill ToVolunteerSkillEntity(this SingleSkillDto SSDto, int uid)
+        {
+            return new VolunteerSkill()
+            {
+                UserId = uid,
+                SkillId = SSDto.Skill,
+            };
+        }
+    }
+}