From aae690368dc3f60d18c3564cd4c1603820defec1 Mon Sep 17 00:00:00 2001
From: "branislav.radivojevic" <wafflemynxyt@gmail.com>
Date: Mon, 5 Dec 2022 17:10:49 +0100
Subject: Najpopularniji post za svaku lokaciju u radiusu

---
 Backend/Api/Api/Controllers/LocationController.cs | 22 +++++++++++++++++++-
 Backend/Api/Api/Interfaces/IPostService.cs        |  1 +
 Backend/Api/Api/Services/LocationService.cs       |  2 ++
 Backend/Api/Api/Services/PostService.cs           | 25 +++++++++++++++++++++++
 4 files changed, 49 insertions(+), 1 deletion(-)

diff --git a/Backend/Api/Api/Controllers/LocationController.cs b/Backend/Api/Api/Controllers/LocationController.cs
index ba9c9a8..ac093bb 100644
--- a/Backend/Api/Api/Controllers/LocationController.cs
+++ b/Backend/Api/Api/Controllers/LocationController.cs
@@ -12,9 +12,11 @@ namespace Api.Controllers
     public class LocationController : ControllerBase
     {
         private readonly ILocationService _locationService;
-        public LocationController(ILocationService locationService)
+        private readonly IPostService _postService;
+        public LocationController(ILocationService locationService, IPostService postService)
         {
             _locationService = locationService;
+            _postService = postService;
         }
 
         [HttpPost("add")]
@@ -74,5 +76,23 @@ namespace Api.Controllers
                     return Ok(ret);
             }
         }
+
+        [HttpGet("searchradius")]
+        [Authorize(Roles = "User")]
+        public async Task<ActionResult<List<Location>>> bestPostsForLocationInRadius(double latitude, double longitude, double radius)
+        {
+            Coords coords = new Coords();
+            if (latitude != null && longitude != null)
+            {
+                coords.latitude = (double)latitude;
+                coords.longitude = (double)longitude;
+            }
+            List<PostSend> ret = new List<PostSend>();
+            ret = await _postService.BestPostForAllLocationsInRadius(coords, radius);
+            if (ret != null && ret.Count > 0)
+                return Ok(ret);
+            return BadRequest();
+            
+        }
     }
 }
diff --git a/Backend/Api/Api/Interfaces/IPostService.cs b/Backend/Api/Api/Interfaces/IPostService.cs
index 69846b0..84d32ef 100644
--- a/Backend/Api/Api/Interfaces/IPostService.cs
+++ b/Backend/Api/Api/Interfaces/IPostService.cs
@@ -29,5 +29,6 @@ namespace Api.Interfaces
         Task<List<PostSend>> Recommended(string userid);
         Task<Boolean> addRemoveFavourite(string postId);
         Task<List<Trending>> TrendingTags();
+        Task<List<PostSend>> BestPostForAllLocationsInRadius(Coords coords, double radius);
     }
 }
\ No newline at end of file
diff --git a/Backend/Api/Api/Services/LocationService.cs b/Backend/Api/Api/Services/LocationService.cs
index afb3b5b..55a52e7 100644
--- a/Backend/Api/Api/Services/LocationService.cs
+++ b/Backend/Api/Api/Services/LocationService.cs
@@ -99,5 +99,7 @@ namespace Api.Services
             }
             return tosend;
         }
+
+        
     }
 }
diff --git a/Backend/Api/Api/Services/PostService.cs b/Backend/Api/Api/Services/PostService.cs
index 777389b..6f7c455 100644
--- a/Backend/Api/Api/Services/PostService.cs
+++ b/Backend/Api/Api/Services/PostService.cs
@@ -626,6 +626,31 @@ namespace Api.Services
 
             return tosend;
         }
+
+        public async Task<List<PostSend>> BestPostForAllLocationsInRadius(Coords coords, double radius)
+        {
+            if (coords == null)
+                return null;
+            var lista = await _locations.Find(_ => true).ToListAsync();
+            var inradius = new List<Location>();
+            var tosend = new List<PostSend>();
+            if (lista != null)
+            {
+                foreach (var elem in lista)
+                {
+                    if (Math.Abs(elem.latitude - coords.latitude) < radius && Math.Abs(elem.longitude - coords.longitude) < radius)
+                        inradius.Add(elem);
+                }
+                foreach (var elem in inradius)
+                {
+                    var locposts = await SearchPosts(elem._id, 0, 1, 1);
+                    var best = locposts.posts.Take(1).FirstOrDefault();
+                    if(best != null)
+                        tosend.Add(best);
+                }
+            }
+            return tosend;
+        }
     }
     
 }
-- 
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