9 files changed, 231 insertions, 100 deletions
diff --git a/src/Services/DevHive.Services.Models/Post/Rating/RatePostServiceModel.cs b/src/Services/DevHive.Services.Models/Post/Rating/CreateRatingServiceModel.cs
index d4eb7bd..aaeab73 100644
--- a/src/Services/DevHive.Services.Models/Post/Rating/RatePostServiceModel.cs
+++ b/src/Services/DevHive.Services.Models/Post/Rating/CreateRatingServiceModel.cs
@@ -2,12 +2,12 @@ using System;
 
 namespace DevHive.Services.Models.Post.Rating
 {
-	public class RatePostServiceModel
+	public class CreateRatingServiceModel
 	{
 		public Guid UserId { get; set; }
 
 		public Guid PostId { get; set; }
 
-		public bool Liked { get; set; }
+		public bool IsLike { get; set; }
 	}
 }
diff --git a/src/Services/DevHive.Services.Models/Post/Rating/ReadPostRatingServiceModel.cs b/src/Services/DevHive.Services.Models/Post/Rating/ReadRatingServiceModel.cs
index 8c73aaf..86b4957 100644
--- a/src/Services/DevHive.Services.Models/Post/Rating/ReadPostRatingServiceModel.cs
+++ b/src/Services/DevHive.Services.Models/Post/Rating/ReadRatingServiceModel.cs
@@ -2,14 +2,14 @@ using System;
 
 namespace DevHive.Services.Models.Post.Rating
 {
-	public class ReadPostRatingServiceModel
+	public class ReadRatingServiceModel
 	{
 		public Guid Id { get; set; }
 
 		public Guid PostId { get; set; }
 
-		public int Likes { get; set; }
+		public Guid UserId { get; set; }
 
-		public int Dislikes { get; set; }
+		public bool IsLike { get; set; }
 	}
 }
diff --git a/src/Services/DevHive.Services.Models/Post/Rating/UpdateRatingServiceModel.cs b/src/Services/DevHive.Services.Models/Post/Rating/UpdateRatingServiceModel.cs
new file mode 100644
index 0000000..1ea8d8f
--- /dev/null
+++ b/src/Services/DevHive.Services.Models/Post/Rating/UpdateRatingServiceModel.cs
@@ -0,0 +1,15 @@
+using System;
+
+namespace DevHive.Services.Models.Post.Rating
+{
+	public class UpdateRatingServiceModel
+	{
+		public Guid Id { get; set; }
+
+		public Guid UserId { get; set; }
+
+		public Guid PostId { get; set; }
+
+		public bool IsLike { get; set; }
+	}
+}
diff --git a/src/Services/DevHive.Services.Models/Post/ReadPostServiceModel.cs b/src/Services/DevHive.Services.Models/Post/ReadPostServiceModel.cs
index a7aa882..33d6520 100644
--- a/src/Services/DevHive.Services.Models/Post/ReadPostServiceModel.cs
+++ b/src/Services/DevHive.Services.Models/Post/ReadPostServiceModel.cs
@@ -21,6 +21,7 @@ namespace DevHive.Services.Models.Post
 		public List<IdModel> Comments { get; set; } = new();
 
 		public List<string> FileUrls { get; set; }
-		// public List<FileContentResult> Files { get; set; } = new();
+
+		public int CurrentRating { get; set; }
 	}
 }
diff --git a/src/Services/DevHive.Services/Configurations/Mapping/RatingMappings.cs b/src/Services/DevHive.Services/Configurations/Mapping/RatingMappings.cs
index fefa6d8..3ef7d33 100644
--- a/src/Services/DevHive.Services/Configurations/Mapping/RatingMappings.cs
+++ b/src/Services/DevHive.Services/Configurations/Mapping/RatingMappings.cs
@@ -8,6 +8,11 @@ namespace DevHive.Services.Configurations.Mapping
 	{
 		public RatingMappings()
 		{
+			CreateMap<CreateRatingServiceModel, Rating>();
+
+			CreateMap<Rating, ReadRatingServiceModel>();
+
+			CreateMap<UpdateRatingServiceModel, Rating>();
 		}
 	}
 }
diff --git a/src/Services/DevHive.Services/Interfaces/IRateService.cs b/src/Services/DevHive.Services/Interfaces/IRateService.cs
deleted file mode 100644
index 359ef55..0000000
--- a/src/Services/DevHive.Services/Interfaces/IRateService.cs
+++ /dev/null
@@ -1,14 +0,0 @@
-using System;
-using System.Threading.Tasks;
-using DevHive.Data.Models;
-using DevHive.Services.Models.Post.Rating;
-
-namespace DevHive.Services.Interfaces
-{
-	public interface IRateService
-	{
-		Task<ReadPostRatingServiceModel> RatePost(RatePostServiceModel ratePostServiceModel);
-
-		bool HasUserRatedThisPost(User user, Post post);
-	}
-}
diff --git a/src/Services/DevHive.Services/Interfaces/IRatingService.cs b/src/Services/DevHive.Services/Interfaces/IRatingService.cs
new file mode 100644
index 0000000..b9ddc2c
--- /dev/null
+++ b/src/Services/DevHive.Services/Interfaces/IRatingService.cs
@@ -0,0 +1,23 @@
+using System;
+using System.Threading.Tasks;
+using DevHive.Data.Models;
+using DevHive.Services.Models.Post.Rating;
+
+namespace DevHive.Services.Interfaces
+{
+	public interface IRatingService
+	{
+		Task<Guid> RatePost(CreateRatingServiceModel createRatingServiceModel);
+
+		Task<ReadRatingServiceModel> GetRatingById(Guid ratingId);
+		Task<bool> HasUserRatedThisPost(Guid userId, Guid postId);
+
+		Task<ReadRatingServiceModel> UpdateRating(UpdateRatingServiceModel updateRatingServiceModel);
+
+		Task<bool> DeleteRating(Guid ratingId);
+
+		Task<bool> ValidateJwtForCreating(Guid userId, string rawTokenData);
+
+		Task<bool> ValidateJwtForRating(Guid commentId, string rawTokenData);
+	}
+}
diff --git a/src/Services/DevHive.Services/Services/RateService.cs b/src/Services/DevHive.Services/Services/RateService.cs
deleted file mode 100644
index caf4b80..0000000
--- a/src/Services/DevHive.Services/Services/RateService.cs
+++ /dev/null
@@ -1,80 +0,0 @@
-using System;
-using System.Linq;
-using System.Threading.Tasks;
-using AutoMapper;
-using DevHive.Data.Interfaces;
-using DevHive.Data.Models;
-using DevHive.Services.Interfaces;
-using DevHive.Services.Models.Post.Rating;
-
-namespace DevHive.Services.Services
-{
-	public class RateService : IRateService
-	{
-		private readonly IPostRepository _postRepository;
-		private readonly IUserRepository _userRepository;
-		private readonly IRatingRepository _ratingRepository;
-		private readonly IMapper _mapper;
-
-		public RateService(IPostRepository postRepository, IRatingRepository ratingRepository, IUserRepository userRepository, IMapper mapper)
-		{
-			this._postRepository = postRepository;
-			this._ratingRepository = ratingRepository;
-			this._userRepository = userRepository;
-			this._mapper = mapper;
-		}
-
-		public async Task<ReadPostRatingServiceModel> RatePost(RatePostServiceModel ratePostServiceModel)
-		{
-			throw new NotImplementedException();
-			// if (!await this._postRepository.DoesPostExist(ratePostServiceModel.PostId))
-			// throw new ArgumentException("Post does not exist!");
-
-			// if (!await this._userRepository.DoesUserExistAsync(ratePostServiceModel.UserId))
-			// 	throw new ArgumentException("User does not exist!");
-
-			// Post post = await this._postRepository.GetByIdAsync(ratePostServiceModel.PostId);
-			// User user = await this._userRepository.GetByIdAsync(ratePostServiceModel.UserId);
-
-			// if (this.HasUserRatedThisPost(user, post))
-			// 	throw new ArgumentException("You can't rate the same post more then one(duh, amigo)");
-
-			// this.Rate(user, post, ratePostServiceModel.Liked);
-
-			// bool success = await this._ratingRepository.EditAsync(post.Rating.Id, post.Rating);
-			// if (!success)
-			// 	throw new InvalidOperationException("Unable to rate the post!");
-
-			// Rating newRating = await this._ratingRepository.GetByIdAsync(post.Rating.Id);
-			// return this._mapper.Map<ReadPostRatingServiceModel>(newRating);
-		}
-
-		public async Task<ReadPostRatingServiceModel> RemoveUserRateFromPost(Guid userId, Guid postId)
-		{
-			throw new NotImplementedException();
-			// Post post = await this._postRepository.GetByIdAsync(postId);
-			// User user = await this._userRepository.GetByIdAsync(userId);
-
-			// if (!this.HasUserRatedThisPost(user, post))
-			// 	throw new ArgumentException("You haven't rated this post, lmao!");
-		}
-
-		public bool HasUserRatedThisPost(User user, Post post)
-		{
-			throw new NotImplementedException();
-			// return post.Rating.UsersThatRated
-			// 	.Any(x => x.Id == user.Id);
-		}
-
-		private void Rate(User user, Post post, bool liked)
-		{
-			throw new NotImplementedException();
-			// if (liked)
-			// 	post.Rating.Rate++;
-			// else
-			// 	post.Rating.Rate--;
-
-			// post.Rating.UsersThatRated.Add(user);
-		}
-	}
-}
diff --git a/src/Services/DevHive.Services/Services/RatingService.cs b/src/Services/DevHive.Services/Services/RatingService.cs
new file mode 100644
index 0000000..22eeb99
--- /dev/null
+++ b/src/Services/DevHive.Services/Services/RatingService.cs
@@ -0,0 +1,181 @@
+using System;
+using System.Collections.Generic;
+using System.IdentityModel.Tokens.Jwt;
+using System.Linq;
+using System.Security.Claims;
+using System.Threading.Tasks;
+using AutoMapper;
+using DevHive.Data.Interfaces;
+using DevHive.Data.Models;
+using DevHive.Services.Interfaces;
+using DevHive.Services.Models.Post.Rating;
+
+namespace DevHive.Services.Services
+{
+	public class RatingService : IRatingService
+	{
+		private readonly IPostRepository _postRepository;
+		private readonly IUserRepository _userRepository;
+		private readonly IRatingRepository _ratingRepository;
+		private readonly IMapper _mapper;
+
+		public RatingService(IPostRepository postRepository, IRatingRepository ratingRepository, IUserRepository userRepository, IMapper mapper)
+		{
+			this._postRepository = postRepository;
+			this._ratingRepository = ratingRepository;
+			this._userRepository = userRepository;
+			this._mapper = mapper;
+		}
+
+		#region Create
+		public async Task<Guid> RatePost(CreateRatingServiceModel createRatingServiceModel)
+		{
+			if (!await this._postRepository.DoesPostExist(createRatingServiceModel.PostId))
+				throw new ArgumentException("Post does not exist!");
+
+			if (await this._ratingRepository.UserRatedPost(createRatingServiceModel.UserId, createRatingServiceModel.PostId))
+				throw new ArgumentException("User already rated the post!");
+
+			Rating rating = this._mapper.Map<Rating>(createRatingServiceModel);
+
+			User user = await this._userRepository.GetByIdAsync(createRatingServiceModel.UserId);
+			Post post = await this._postRepository.GetByIdAsync(createRatingServiceModel.PostId);
+			rating.User = user;
+			rating.Post = post;
+
+			bool success = await this._ratingRepository.AddAsync(rating);
+
+			if (success)
+			{
+				Rating newRating = await this._ratingRepository.GetRatingByUserAndPostId(rating.User.Id, rating.Post.Id);
+
+				return newRating.Id;
+			}
+			else
+				return Guid.Empty;
+		}
+		#endregion
+
+		#region Read
+		public async Task<ReadRatingServiceModel> GetRatingById(Guid ratingId)
+		{
+			Rating rating = await this._ratingRepository.GetByIdAsync(ratingId) ??
+				throw new ArgumentException("The rating does not exist");
+
+			User user = await this._userRepository.GetByIdAsync(rating.User.Id) ??
+				throw new ArgumentException("The user does not exist");
+
+			ReadRatingServiceModel readRatingServiceModel = this._mapper.Map<ReadRatingServiceModel>(rating);
+			readRatingServiceModel.UserId = user.Id;
+
+			return readRatingServiceModel;
+		}
+
+		public async Task<bool> HasUserRatedThisPost(Guid userId, Guid postId)
+		{
+			return await this._ratingRepository
+				.UserRatedPost(userId, postId);
+		}
+		#endregion
+
+		#region Update
+		public async Task<ReadRatingServiceModel> UpdateRating(UpdateRatingServiceModel updateRatingServiceModel)
+		{
+			Rating rating = await this._ratingRepository.GetByIdAsync(updateRatingServiceModel.Id) ??
+				throw new ArgumentException("Rating does not exist!");
+
+			User user = await this._userRepository.GetByIdAsync(updateRatingServiceModel.UserId) ??
+				throw new ArgumentException("User does not exist!");
+
+			if (!await this._ratingRepository.UserRatedPost(updateRatingServiceModel.UserId, updateRatingServiceModel.PostId))
+				throw new ArgumentException("User has not rated the post!");
+
+			rating.User = user;
+			rating.IsLike = updateRatingServiceModel.IsLike;
+
+			bool result = await this._ratingRepository.EditAsync(updateRatingServiceModel.Id, rating);
+
+			if (result)
+			{
+				ReadRatingServiceModel readRatingServiceModel = this._mapper.Map<ReadRatingServiceModel>(rating);
+				return readRatingServiceModel;
+			}
+			else
+				return null;
+		}
+		#endregion
+
+		#region Delete
+		public async Task<bool> DeleteRating(Guid ratingId)
+		{
+			if (!await this._ratingRepository.DoesRatingExist(ratingId))
+				throw new ArgumentException("Rating does not exist!");
+
+			Rating rating = await this._ratingRepository.GetByIdAsync(ratingId);
+			return await this._ratingRepository.DeleteAsync(rating);
+		}
+		#endregion
+
+		#region Validations
+		/// <summary>
+		/// Checks whether the user Id in the token and the given user Id match
+		/// </summary>
+		public async Task<bool> ValidateJwtForCreating(Guid userId, string rawTokenData)
+		{
+			User user = await this.GetUserForValidation(rawTokenData);
+
+			return user.Id == userId;
+		}
+
+		/// <summary>
+		/// Checks whether the comment, gotten with the commentId,
+		/// is made by the user in the token
+		/// or if the user in the token is an admin
+		/// </summary>
+		public async Task<bool> ValidateJwtForRating(Guid commentId, string rawTokenData)
+		{
+			Rating rating = await this._ratingRepository.GetByIdAsync(commentId) ??
+				throw new ArgumentException("Rating does not exist!");
+			User user = await this.GetUserForValidation(rawTokenData);
+
+			//If user made the comment
+			if (rating.User.Id == user.Id)
+				return true;
+			//If user is admin
+			else if (user.Roles.Any(x => x.Name == Role.AdminRole))
+				return true;
+			else
+				return false;
+		}
+
+		/// <summary>
+		/// Returns the user, via their Id in the token
+		/// </summary>
+		private async Task<User> GetUserForValidation(string rawTokenData)
+		{
+			JwtSecurityToken jwt = new JwtSecurityTokenHandler().ReadJwtToken(rawTokenData.Remove(0, 7));
+
+			Guid jwtUserId = Guid.Parse(this.GetClaimTypeValues("ID", jwt.Claims).First());
+
+			User user = await this._userRepository.GetByIdAsync(jwtUserId) ??
+				throw new ArgumentException("User does not exist!");
+
+			return user;
+		}
+
+		/// <summary>
+		/// Returns all values from a given claim type
+		/// </summary>
+		private List<string> GetClaimTypeValues(string type, IEnumerable<Claim> claims)
+		{
+			List<string> toReturn = new();
+
+			foreach (var claim in claims)
+				if (claim.Type == type)
+					toReturn.Add(claim.Value);
+
+			return toReturn;
+		}
+		#endregion
+	}
+}