From 13c74f612f392630d162746f939cf99b208ca4c2 Mon Sep 17 00:00:00 2001
From: Danail Dimitrov <danaildimitrov321@gmail.com>
Date: Tue, 15 Dec 2020 21:28:34 +0200
Subject: Adding LanguageService and updating LanguageRepository

---
 .../Repositories/LanguageRepository.cs             | 18 +++++-
 src/DevHive.Services/Services/LanguageService.cs   | 69 ++++++++++++++++++++++
 2 files changed, 85 insertions(+), 2 deletions(-)
 create mode 100644 src/DevHive.Services/Services/LanguageService.cs

(limited to 'src')

diff --git a/src/DevHive.Data/Repositories/LanguageRepository.cs b/src/DevHive.Data/Repositories/LanguageRepository.cs
index 26d0d61..add0b8c 100644
--- a/src/DevHive.Data/Repositories/LanguageRepository.cs
+++ b/src/DevHive.Data/Repositories/LanguageRepository.cs
@@ -1,6 +1,4 @@
 using System;
-using System.Collections.Generic;
-using System.Linq;
 using System.Threading.Tasks;
 using Data.Models.Interfaces.Database;
 using DevHive.Data.Models;
@@ -35,6 +33,22 @@ namespace DevHive.Data.Repositories
 				.FindAsync(id);
 		}
 
+		public async Task<bool> DoesLanguageNameExist(string languageName)
+		{
+			return await this._context
+				.Set<Language>()
+				.AsNoTracking()
+				.AnyAsync(r => r.Name == languageName);
+		}
+
+		public async Task<bool> DoesLanguageExist(Guid id)
+		{
+			return await this._context
+				.Set<Language>()
+				.AsNoTracking()
+				.AnyAsync(r => r.Id == id);
+		}
+
 		//Update
 		public async Task EditAsync(Language newEntity)
 		{
diff --git a/src/DevHive.Services/Services/LanguageService.cs b/src/DevHive.Services/Services/LanguageService.cs
new file mode 100644
index 0000000..f57a2a8
--- /dev/null
+++ b/src/DevHive.Services/Services/LanguageService.cs
@@ -0,0 +1,69 @@
+using System;
+using System.Threading.Tasks;
+using AutoMapper;
+using DevHive.Data.Models;
+using DevHive.Data.Repositories;
+using DevHive.Services.Models.Language;
+using Microsoft.AspNetCore.Mvc;
+
+namespace DevHive.Services.Services
+{
+	public class LanguageService
+	{
+		private readonly LanguageRepository _languageRepository;
+		private readonly IMapper _languageMapper;
+
+		public LanguageService(DevHiveContext context, IMapper mapper)
+		{
+			this._languageRepository = new LanguageRepository(context);
+			this._languageMapper = mapper;
+		}
+
+		public async Task<IActionResult> CreateLanguage(LanguageServiceModel languageServiceModel)
+		{
+			if (!await this._languageRepository.DoesLanguageNameExist(languageServiceModel.Name))
+				return new BadRequestObjectResult("Language already exists!");
+
+			Language language = this._languageMapper.Map<Language>(languageServiceModel);
+
+			await this._languageRepository.AddAsync(language);
+
+			return new CreatedResult("CreateLanguage", language);
+		}
+
+		public async Task<IActionResult> GetLanguageByID(Guid id)
+		{
+			Language language = await this._languageRepository.GetByIdAsync(id);
+
+			if(language == null)
+				return new NotFoundObjectResult("The language does not exist");
+
+			return new ObjectResult(language);
+		}
+
+		public async Task<IActionResult> UpdateLanguage(LanguageServiceModel languageServiceModel)
+		{
+			if (!await this._languageRepository.DoesLanguageExist(languageServiceModel.Id))
+				return new NotFoundObjectResult("Language does not exist!");
+
+			if (!await this._languageRepository.DoesLanguageNameExist(languageServiceModel.Name))
+				return new BadRequestObjectResult("Language name already exists!");
+
+			Language language = this._languageMapper.Map<Language>(languageServiceModel);
+			await this._languageRepository.EditAsync(language);
+
+			return new AcceptedResult("UpdateLanguage", language);
+		}
+	
+		public async Task<IActionResult> DeleteLanguage(Guid id)
+		{
+			if (!await this._languageRepository.DoesLanguageExist(id))
+				return new NotFoundObjectResult("Language does not exist!");
+
+			Language language = await this._languageRepository.GetByIdAsync(id);
+			await this._languageRepository.DeleteAsync(language);
+
+			return new OkResult();
+		}
+	}
+}
\ No newline at end of file
-- 
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