From f2e816ab9e625b0575f6e81fffb0ee7fceddc84e Mon Sep 17 00:00:00 2001
From: TAMARA JERINIC <tamara.jerinic@gmail.com>
Date: Mon, 28 Nov 2022 22:26:51 +0100
Subject: Omogućeno praćenje i prestanak praćenja korisnika na front-u i
 back-u.
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 Backend/Api/Api/Controllers/UserController.cs |  6 ++
 Backend/Api/Api/Interfaces/IUserService.cs    |  2 +
 Backend/Api/Api/Services/UserService.cs       | 79 ++++++++++++++++++++++++---
 3 files changed, 80 insertions(+), 7 deletions(-)

(limited to 'Backend/Api')

diff --git a/Backend/Api/Api/Controllers/UserController.cs b/Backend/Api/Api/Controllers/UserController.cs
index ada0f35..cc45737 100644
--- a/Backend/Api/Api/Controllers/UserController.cs
+++ b/Backend/Api/Api/Controllers/UserController.cs
@@ -110,5 +110,11 @@ namespace Api.Controllers
             return Ok(await _userService.CheckIfAlreadyFollow(id));
         }
 
+        [HttpGet("{id}/unfollow")]
+        [Authorize(Roles = "User")]
+        public async Task<ActionResult<Boolean>> Unfollow(string id)
+        {
+            return Ok(await _userService.Unfollow(id));
+        }
     }
 }
diff --git a/Backend/Api/Api/Interfaces/IUserService.cs b/Backend/Api/Api/Interfaces/IUserService.cs
index 21dcdc0..5f99733 100644
--- a/Backend/Api/Api/Interfaces/IUserService.cs
+++ b/Backend/Api/Api/Interfaces/IUserService.cs
@@ -33,5 +33,7 @@ namespace Api.Interfaces
         Task<List<UserSend>> GetMyFollowings();
 
         Task<Boolean> CheckIfAlreadyFollow(string id);
+        Task<Boolean> Unfollow(string id);
+
     }
 }
diff --git a/Backend/Api/Api/Services/UserService.cs b/Backend/Api/Api/Services/UserService.cs
index 7bfc24a..cc75533 100644
--- a/Backend/Api/Api/Services/UserService.cs
+++ b/Backend/Api/Api/Services/UserService.cs
@@ -6,6 +6,7 @@ using System.Security.Claims;
 using MimeKit;
 using MailKit.Net.Smtp;
 using DnsClient;
+using MongoDB.Bson;
 
 namespace Api.Services
 {
@@ -380,6 +381,18 @@ namespace Api.Services
             return tosend;
         }
 
+        public async Task<Boolean> updateUserFollowerFollowingCount(List<string> followers,List <string> followings,string userId)
+        {
+            User u = await _users.Find(user => user._id == userId).FirstOrDefaultAsync();
+            if(u!= null)
+            {
+                u.followersCount = followers.Count();
+                u.followingCount = followings.Count();
+                return true;
+            }
+            return false;
+        }
+
         public async Task<Boolean> AddFollower(string followerId)
         {
             string id = null;
@@ -392,14 +405,29 @@ namespace Api.Services
            
             if (id != null && followerId!=null)
             {
-                if (u.followers == null)
-                    u.followers = new List<string>();
-                u.followers.Add(followerId);
-                if (f.following == null)
-                    f.following = new List<string>();
-                f.following.Add(id);
+                if (f.followers == null)
+                {
+                    f.followers = new List<string>();
+                    f.followersCount = 0;
+                }
+                f.followers.Add(id);
+                f.followersCount =f.followers.Count();
+
+                
+                if (u.following == null)
+                {
+                    u.following = new List<string>();
+                    u.followingCount = 0;
+                }
+                u.following.Add(followerId);
+                u.followingCount =u.following.Count();
+
                 _users.ReplaceOne(user=>user._id==id, u);
                 _users.ReplaceOne(user => user._id == followerId, f);
+
+               // updateUserFollowerFollowingCount(u.followers, u.following, u._id);
+                //updateUserFollowerFollowingCount(f.followers, f.following, f._id);
+
                 return true;
             }
 
@@ -543,5 +571,42 @@ namespace Api.Services
 
             return false;
         }
-    }
+
+        public async  Task<bool> Unfollow(string id)
+        {
+            string myId = null;
+
+            if (_httpContext.HttpContext.User.FindFirstValue("id") != null)
+            {
+                myId = _httpContext.HttpContext.User.FindFirstValue("id").ToString();
+            }
+
+            User u = await _users.Find(user => user._id == myId).FirstOrDefaultAsync();
+            User f = await _users.Find(user => user._id == id).FirstOrDefaultAsync();
+
+            if (u != null)
+            {
+                if (u.following != null && f.followers!=null)
+                {
+                    u.following.Remove(f._id);
+                    u.followingCount=u.following.Count();
+                    u.followersCount = u.followers.Count();
+                   
+
+                    f.followers.Remove(u._id);
+                    f.followersCount =f.followers.Count();
+                    f.followingCount =f.following.Count();
+
+                    _users.ReplaceOne(user => user._id == myId, u);
+                    _users.ReplaceOne(user => user._id == id, f);
+
+                    //updateUserFollowerFollowingCount(u.followers, u.following, u._id);
+                    //updateUserFollowerFollowingCount(f.followers, f.following, f._id);
+                    return true; 
+                }
+
+            }
+            return false;
+        }
+        }
 }
-- 
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