feat + refactor : ajout du contrôleur des chapitres + création d'unité de centralisation des requêtes (~ unité de travail)

WebApi/WebApi/Controllers/AdministratorController.cs

@@ -10,17 +10,15 @@ using Microsoft.AspNetCore.Http.HttpResults;
 
 namespace WebApi.Controllers
 {
-    [ApiController]
-    [Route("api/v[version]/")]
     public class AdministratorController : ControllerBase
     {
-        private IAdministratorManager<AdministratorDto> mgr;
+        private Unit unity;
 
         private readonly Logger<AdministratorController> logger;
 
-        public AdministratorController(MyDbContext dbContext, Logger<AdministratorController> logger)
+        public AdministratorController(Unit unit, Logger<AdministratorController> logger)
         {
-            mgr = new AdministratorServiceManager(dbContext);
+            this.unity = unit;
             this.logger = logger;
         }
 
@@ -42,9 +40,9 @@ namespace WebApi.Controllers
         /// </returns>
         public async Task<IActionResult> PostAdministrator(AdministratorDto administrator)
         {
-            int count = mgr.getNbElements(); // count : number of elements before opperation
-            var tmp = await mgr.addAdmin(administrator); //  tmp : administrator recieve by the addAdmin method
-            if (mgr.getNbElements() == count) // <=> not added
+            int count = unity.getNbAdmins(); // count : number of elements before opperation
+            var tmp = await unity.addAdmin(administrator); //  tmp : administrator recieve by the addAdmin method
+            if (unity.getNbAdmins() == count) // <=> not added
             {
                 if(tmp.Username == administrator.Username)
                 {
@@ -73,7 +71,7 @@ namespace WebApi.Controllers
             else
             {
                 // the administrator may be added but we do not recieved him
-                if (mgr.getAdministratorByUsername(administrator.Username) != null)
+                if (unity.getAdministratorByUsername(administrator.Username) != null)
                 {
                     // he is added
                     logger.LogError(message: $"administrator added but not recieved");
@@ -83,7 +81,7 @@ namespace WebApi.Controllers
                 {
                     // he is not added
                     logger.LogCritical(message: "administrator that we wanted to add not added\nand we have added another one");
-                    if (mgr.getAdministratorByUsername(administrator.Username) == null) // <=> not added
+                    if (unity.getAdministratorByUsername(administrator.Username) == null) // <=> not added
                     return StatusCode(500);
                 }
             }
@@ -105,14 +103,14 @@ namespace WebApi.Controllers
         /// 
         /// return content :
         /// a tuple of the number of page and
-        /// all T element in the database for
+        /// all administrators in the database for
         /// the page nb if status code = 200
         /// the number of page for count element if status code = 204
         /// nothing if status code = 400
         /// </returns>
         public async Task<IActionResult> GetSomeAdministrators(int page, int count = 10, AdministratorOrderCriteria orderCriteria = AdministratorOrderCriteria.ById)
         {
-            var tmp = await mgr.getAdministrators(page, count, orderCriteria);
+            var tmp = await unity.getAdministrators(page, count, orderCriteria);
             if (tmp.administrators == null)
             {
                 logger.LogInformation(message: "get admin : bad request (page or/and count incorrect)");
@@ -120,7 +118,7 @@ namespace WebApi.Controllers
             }
             else if (tmp.administrators.Count() == 0)
             {
-                logger.LogWarning(message: $"get admin : no content. number of element : {mgr.getNbElements()}, page wanted : {page}, number of elements in a page : {count}");
+                logger.LogWarning(message: $"get admin : no content. number of element : {unity.getNbAdmins()}, page wanted : {page}, number of elements in a page : {count}");
                 return NoContent();
             }
             else
@@ -159,13 +157,13 @@ namespace WebApi.Controllers
                 logger.LogError("want to delete an administrator with an id less than 0");
                 return BadRequest();
             }
-            int count = mgr.getNbElements(); // count : number of elements before opperation
-            var tmp = await mgr.removeAdmin(id);
+            int count = unity.getNbAdmins(); // count : number of elements before opperation
+            var tmp = await unity.removeAdmin(id);
             if (tmp == null) // we don't recieve the administrator
             {
-                if(mgr.getNbElements() == count) // he is not deleted 
+                if(unity.getNbAdmins() == count) // he is not deleted 
                 {
-                    if (mgr.getAdministrator(id) != null)
+                    if (unity.getAdministrator(id) != null)
                     {
                         logger.LogCritical(message: "remove administrator fail : administrator not removed and not recieved");
                         return StatusCode(500);
@@ -178,7 +176,7 @@ namespace WebApi.Controllers
                 }
                 else // he may be deleted
                 {
-                    if (mgr.getAdministrator(id) == null) // he must be deleted
+                    if (unity.getAdministrator(id) == null) // he must be deleted
                     {
                         logger.LogError(message: "administrator removed but not returned");
                         return NoContent();
@@ -190,7 +188,7 @@ namespace WebApi.Controllers
                     }
                 }
             }
-            if(mgr.getNbElements() == count)
+            if(unity.getNbAdmins() == count)
             {
                 // <=> we have recieved an administrator which should be deleted
                 // but since we have the same number of administrator than
@@ -222,16 +220,16 @@ namespace WebApi.Controllers
         /// </returns>
         public async Task<IActionResult> PutAdministrator(int id, AdministratorDto administrator)
         {
-            var tmp = await mgr.getAdministratorByUsername(administrator.Username);
+            var tmp = await unity.getAdministratorByUsername(administrator.Username);
             if (tmp != null)
             {
                 logger.LogTrace(message: "Want to modify into an administrator who already exist");
                 return StatusCode(StatusCodes.Status208AlreadyReported, tmp);
             }
-            tmp = await mgr.updateAdministrator(id, administrator);
+            tmp = await unity.updateAdministrator(id, administrator);
             if(tmp == null)
             {
-                tmp = await mgr.getAdministrator(id);
+                tmp = await unity.getAdministrator(id);
                 if (tmp == null) // Ok, it don't exist
                 {
                     logger.LogWarning(message: "Want to modify an administrator who don't exist");
@@ -261,7 +259,7 @@ namespace WebApi.Controllers
                 }
                 else // he haven't changed
                 {
-                    var tmp2 = (await mgr.getAdministratorByUsername(administrator.Username));
+                    var tmp2 = (await unity.getAdministratorByUsername(administrator.Username));
                     if(tmp2 != null) // it change another administrator
                         logger.LogCritical(message: "administrator should have changed but he haven't. Instead, another one changed");
                     else // nothing have changed
@@ -271,7 +269,7 @@ namespace WebApi.Controllers
             }
             else // we recieve another one
             {
-                var tmp2 = await mgr.getAdministrator(id);
+                var tmp2 = await unity.getAdministrator(id);
                 if (tmp2 == null)
                 { // ok, he d'ont exist.
                     logger.LogError(message: "Want to modify an administrator who don't exist but recieved a random one");

WebApi/WebApi/Controllers/AnswerController.cs

@@ -1,6 +0,0 @@
-namespace WebApi.Controllers
-{
-    public class AnswerController
-    {
-    }
-}

WebApi/WebApi/Controllers/ChapterController.cs

@@ -1,6 +1,304 @@
-namespace WebApi.Controllers
+using DTOs;
+using Microsoft.AspNetCore.Mvc;
+using OrderCriterias;
+
+namespace WebApi.Controllers
 {
-    public class ChapterController
+    public class ChapterController : ControllerBase
     {
+        private Unit unity;
+
+        private readonly Logger<ChapterController> logger;
+
+        public ChapterController(Unit unit, Logger<ChapterController> logger)
+        {
+            this.unity = unit;
+            this.logger = logger;
+        }
+
+        /// <summary>
+        /// add a chapter
+        /// </summary>
+        /// <param name="chapter">the chapter to add</param>
+        /// <returns>
+        /// status code :
+        /// 200 if the chapter is added
+        /// 202 if the chapter is added
+        /// 208 if the chapter was already in the database
+        /// 500 if there was an internal error that doesn't allow to continue
+        /// return content :
+        /// no content when status code = 200
+        /// chapter added when status code = 202
+        /// chapter already in the database that equals the one we wanted to add when status code = 208
+        /// no content when status code = 500
+        /// </returns>
+        public async Task<IActionResult> PostChapter(ChapterDto chapter)
+        {
+            int count = unity.getNbChapters(); // count : number of elements before opperation
+            var tmp = await unity.addChapter(chapter); //  tmp : chapter recieve by the addChapter method
+            if (unity.getNbChapters() == count) // <=> not added
+            {
+                if (tmp.Name == chapter.Name)
+                {
+                    // it was already in the database
+                    logger.LogInformation(message: $"want to add a chapter already in the database : {tmp.ToString()}");
+                    return StatusCode(208, tmp);
+                }
+                else
+                {
+                    // we recieve a chapter already in the database
+                    // that should be equal to the chapter that we
+                    // wanted to add but it isn't
+                    logger.LogCritical(message: "controller's add fail (already in the database) but\nchapter" +
+                        $" recieve isn't the same as the one we wanted to add.\n" +
+                        $"Chapter recieve : {tmp.ToString()}\nchapter to add : {chapter.ToString()}");
+                    return StatusCode(500);
+                }
+            }
+            // added
+            if (tmp.Name == chapter.Name)
+            {
+                logger.LogTrace(message: $"chapter added : {tmp.ToString()}");
+                // the chapter has been added and we recieved him
+                return StatusCode(202, tmp);
+            }
+            else
+            {
+                // the chapter may be added but we do not recieved him
+                if (unity.getChapter(chapter.Name) != null)
+                {
+                    // he is added
+                    logger.LogError(message: $"chapter added but not recieved");
+                    return Ok(); // not 202 to make a difference between 2 cases
+                }
+                else
+                {
+                    // he is not added
+                    logger.LogCritical(message: "chapter that we wanted to add not added\nand we have added another one");
+                    if (unity.getChapter(chapter.Name) == null) // <=> not added
+                        return StatusCode(500);
+                }
+            }
+            logger.LogError(message: "this case should not append");
+            return StatusCode(500);
+        }
+
+        /// <summary>
+        /// get a part of all chapters
+        /// </summary>
+        /// <param name="page">the actual page</param>
+        /// <param name="count">number of T element in a page</param>
+        /// <param name="orderCriteria">the order criteria</param>
+        /// <returns>
+        /// status code :
+        /// 200 if we got a set
+        /// 204 if we got an empty set
+        /// 400 if we got nothing
+        /// 
+        /// return content :
+        /// a tuple of the number of page and
+        /// all chapters in the database for
+        /// the page nb if status code = 200
+        /// the number of page for count element if status code = 204
+        /// nothing if status code = 400
+        /// </returns>
+        public async Task<IActionResult> GetSomeChapters(int page, int count = 10, ChapterOrderCriteria orderCriteria = ChapterOrderCriteria.ById)
+        {
+            var tmp = await unity.getChapters(page, count, orderCriteria);
+            if (tmp.chapters == null)
+            {
+                logger.LogInformation(message: "get chapter : bad request (page or/and count incorrect)");
+                return BadRequest(tmp.nbPages);
+            }
+            else if (tmp.chapters.Count() == 0)
+            {
+                logger.LogWarning(message: $"get chapter : no content. number of element : {unity.getNbChapters()}, page wanted : {page}, number of elements in a page : {count}");
+                return NoContent();
+            }
+            else
+            {
+                logger.LogTrace(message: $"get chapters : page = {page}, count = {count}, order criteria = {orderCriteria switch
+                {
+                    ChapterOrderCriteria.ById => "byId",
+                    ChapterOrderCriteria.ByName => "byName",
+                    _ => "none"
+                }}");
+                return Ok(tmp);
+            }
+        }
+
+        /// <summary>
+        /// delete a chapter
+        /// </summary>
+        /// <param name="id">the id of the chapter to delete</param>
+        /// <returns>
+        /// <returns>
+        /// status code :
+        /// 200 if the chapter is removed
+        /// 204 if the chapter is removed
+        /// 400 if the id is incorrect
+        /// 500 if there was an internal error that doesn't allow to continue
+        /// return content :
+        /// aministrator deleted when status code = 200
+        /// no content when status code = 204
+        /// no content when status code = 400
+        /// no content when status code = 500
+        /// </returns>
+        public async Task<IActionResult> DeleteChapter(int id)
+        {
+            if (id < 0)
+            {
+                logger.LogError("want to delete a chapter with an id less than 0");
+                return BadRequest();
+            }
+            int count = unity.getNbChapters(); // count : number of elements before opperation
+            var tmp = await unity.removeChapter(id);
+            if (tmp == null) // we don't recieve the chapter
+            {
+                if (unity.getNbChapters() == count) // he is not deleted 
+                {
+                    if (unity.getChapter(id) != null)
+                    {
+                        logger.LogCritical(message: "remove chapter fail : chapter not removed and not recieved");
+                        return StatusCode(500);
+                    }
+                    else
+                    {
+                        logger.LogInformation(message: "trying to remove a chapter with an id who don't exist");
+                        return BadRequest();
+                    }
+                }
+                else // he may be deleted
+                {
+                    if (unity.getChapter(id) == null) // he must be deleted
+                    {
+                        logger.LogError(message: "chapter removed but not returned");
+                        return NoContent();
+                    }
+                    else // he is not deleted
+                    {
+                        logger.LogCritical(message: "remove chapter fail : chapter to remove not remove\ninstead, anotherone is deleted and we recieved nothing");
+                        return StatusCode(500);
+                    }
+                }
+            }
+            if (unity.getNbChapters() == count)
+            {
+                // <=> we have recieved a chapter which should be deleted
+                // but since we have the same number of chapter than
+                // before deletion, it isn't deleted
+                logger.LogCritical(message: $"chapter \"{tmp.ToString()}\"should be delete but it isn't");
+                return StatusCode(500);
+            }
+            logger.LogTrace(message: $"chapter removed {tmp.ToString()}");
+            return Ok(tmp);
+        }
+
+        /// <summary>
+        /// update a chapter
+        /// </summary>
+        /// <param name="id">id of the chapter to update</param>
+        /// <param name="chapter">a chapter who contains all properties to change</param>
+        /// <returns>
+        /// status code :
+        /// 200 if the chapter is modified
+        /// 204 if we wanted to modify a chapter who don't exist
+        /// 208 if the new username of the chapter is already used
+        /// 500 if there was an internal error that doesn't allow to continue
+        /// 
+        /// return content :
+        /// the chapter modified when status code = 200
+        /// nothing when status code = 204
+        /// the chapter that already have the username when status code = 208
+        /// nothing when status code = 500
+        /// </returns>
+        public async Task<IActionResult> PutChapter(int id, ChapterDto chapter)
+        {
+            var tmp = await unity.getChapter(chapter.Name);
+            if (tmp != null)
+            {
+                logger.LogTrace(message: "Want to modify into a chapter who already exist");
+                return StatusCode(StatusCodes.Status208AlreadyReported, tmp);
+            }
+            tmp = await unity.updateChapter(id, chapter.Name);
+            if (tmp == null)
+            {
+                tmp = await unity.getChapter(id);
+                if (tmp == null) // Ok, it don't exist
+                {
+                    logger.LogWarning(message: "Want to modify a chapter who don't exist");
+                    return NoContent();
+                }
+                else
+                {
+                    if (tmp.Name == chapter.Name)
+                    {
+                        logger.LogError(message: "Chapter changed but not recieved");
+                        return Ok(tmp);
+                    }
+                    else
+                    {
+                        logger.LogCritical(message: "chapter haven't changed and we recieved nothing");
+                        return StatusCode(500);
+                    }
+                }
+            }
+            else if (tmp.Id == id) // we recieve him
+            {
+                if (tmp.Name == chapter.Name) // he is changed
+                {
+                    logger.LogTrace(message: $"chapter with id {id} modified in {chapter.ToString()}");
+                    return Ok(tmp);
+                }
+                else // he haven't changed
+                {
+                    var tmp2 = (await unity.getChapter(chapter.Name));
+                    if (tmp2 != null) // it change another chapter
+                        logger.LogCritical(message: "chapter should have changed but he haven't. Instead, another one changed");
+                    else // nothing have changed
+                        logger.LogCritical(message: "chapter should have changed but he haven't and we recieved him");
+                    return StatusCode(500);
+                }
+            }
+            else // we recieve another one
+            {
+                var tmp2 = await unity.getChapter(id);
+                if (tmp2 == null)
+                { // ok, he d'ont exist.
+                    logger.LogError(message: "Want to modify a chapter who don't exist but recieved a random one");
+                    return NoContent();
+                }
+                else if (tmp2.Name == chapter.Name)
+                {
+                    logger.LogError(message: $"chapter modified but recieved a random one");
+                    return Ok(tmp2);
+                }
+                else
+                {
+                    logger.LogCritical(message: "chapter that we wanted to modify not modified");
+                    return StatusCode(500);
+                }
+            }
+        }
+
+        /// <summary>
+        /// get a chapter
+        /// </summary>
+        /// <param name="name">the name of the chapter</param>
+        /// <returns>
+        /// status code :
+        /// 200 when we got a chapter
+        /// 204 when we got null
+        /// 
+        /// return content :
+        /// the chapter that correspond to the name when status code = 200
+        /// nothing when status code 204
+        /// </returns>
+        public async Task<IActionResult> GetChapter(string name)
+        {
+            var tmp = await unity.getChapter(name);
+            if(tmp == null) return NoContent();
+            return Ok(tmp);
+        }
     }
 }

WebApi/WebApi/Controllers/FrontController.cs

@@ -1,6 +1,7 @@
 using DbConnectionLibrairie;
 using DTOs;
 using Microsoft.AspNetCore.Mvc;
+using Microsoft.Extensions.Logging;
 using OrderCriterias;
 
 namespace WebApi.Controllers
@@ -9,7 +10,6 @@ namespace WebApi.Controllers
     {
         // all secondary controllers
         private AdministratorController administratorController;
-        private AnswerController answerController;
         private ChapterController chapterController;
         private LobbyController lobbyController;
         private PlayerController playerController;
@@ -18,19 +18,18 @@ namespace WebApi.Controllers
         public FrontController(
             MyDbContext dbContext,
             Logger<AdministratorController> logAdmin,
-            Logger<AnswerController> logAnswer,
             Logger<ChapterController> logChapter,
             Logger<LobbyController> logLobby,
             Logger<PlayerController> logPlayer,
             Logger<QuestionController> logQuestion
         )
         {
-            administratorController = new AdministratorController(dbContext, logAdmin);
-            answerController = new AnswerController(dbContext, logAnswer);
-            chapterController = new ChapterController(dbContext, logChapter);
-            lobbyController = new LobbyController(dbContext, logLobby);
-            playerController = new PlayerController(dbContext, logPlayer);
-            questionController = new QuestionController(dbContext, logQuestion);
+            var unity = new Unit(dbContext);
+            administratorController = new AdministratorController(unity, logAdmin);
+            chapterController = new ChapterController(unity, logChapter);
+            lobbyController = new LobbyController(unity, logLobby);
+            playerController = new PlayerController(unity, logPlayer);
+            questionController = new QuestionController(unity, logQuestion);
         }
 
         /// <summary>
@@ -71,7 +70,7 @@ namespace WebApi.Controllers
         /// 
         /// return content :
         /// a tuple of the number of page and
-        /// all T element in the database for
+        /// all administrators in the database for
         /// the page nb if status code = 200
         /// the number of page for count element if status code = 204
         /// nothing if status code = 400
@@ -136,5 +135,126 @@ namespace WebApi.Controllers
             => await administratorController.PutAdministrator(id, administrator);
 
 
+
+        /// <summary>
+        /// add a chapter
+        /// </summary>
+        /// <param name="chapter">the chapter to add</param>
+        /// <returns>
+        /// status code :
+        /// 200 if the chapter is added
+        /// 202 if the chapter is added
+        /// 208 if the chapter was already in the database
+        /// 500 if there was an internal error that doesn't allow to continue
+        /// return content :
+        /// no content when status code = 200
+        /// chapter added when status code = 202
+        /// chapter already in the database that equals the one we wanted to add when status code = 208
+        /// no content when status code = 500
+        /// </returns>
+        [HttpPost("add/chapter")]
+        [ProducesResponseType(StatusCodes.Status200OK)]
+        [ProducesResponseType(StatusCodes.Status202Accepted)]
+        [ProducesResponseType(StatusCodes.Status208AlreadyReported)]
+        [ProducesResponseType(StatusCodes.Status500InternalServerError)]
+        public async Task<IActionResult> PostChapter([FromBody] ChapterDto chapter)
+            => await chapterController.PostChapter(chapter);
+
+        /// <summary>
+        /// get a part of all chapters
+        /// </summary>
+        /// <param name="page">the actual page</param>
+        /// <param name="count">number of T element in a page</param>
+        /// <param name="orderCriteria">the order criteria</param>
+        /// <returns>
+        /// status code :
+        /// 200 if we got a set
+        /// 204 if we got an empty set
+        /// 400 if we got nothing
+        /// 
+        /// return content :
+        /// a tuple of the number of page and
+        /// all chapters in the database for
+        /// the page nb if status code = 200
+        /// the number of page for count element if status code = 204
+        /// nothing if status code = 400
+        /// </returns>
+        [HttpGet("all/chapter")]
+        [ProducesResponseType(StatusCodes.Status200OK)]
+        [ProducesResponseType(StatusCodes.Status204NoContent)]
+        [ProducesResponseType(StatusCodes.Status400BadRequest)]
+        public async Task<IActionResult> GetSomeChapters([FromQuery] int page, int count = 10, ChapterOrderCriteria orderCriteria = ChapterOrderCriteria.ById)
+            => await chapterController.GetSomeChapters(page, count, orderCriteria);
+
+        /// <summary>
+        /// delete a chapter
+        /// </summary>
+        /// <param name="id">the id of the chapter to delete</param>
+        /// <returns>
+        /// <returns>
+        /// status code :
+        /// 200 if the chapter is removed
+        /// 204 if the chapter is removed
+        /// 400 if the id is incorrect
+        /// 500 if there was an internal error that doesn't allow to continue
+        /// return content :
+        /// aministrator deleted when status code = 200
+        /// no content when status code = 204
+        /// no content when status code = 400
+        /// no content when status code = 500
+        /// </returns>
+        [HttpDelete("delete/chapter")]
+        [ProducesResponseType(StatusCodes.Status200OK)]
+        [ProducesResponseType(StatusCodes.Status204NoContent)]
+        [ProducesResponseType(StatusCodes.Status400BadRequest)]
+        [ProducesResponseType(StatusCodes.Status500InternalServerError)]
+        public async Task<IActionResult> DeleteChapter([FromQuery] int id)
+            => await chapterController.DeleteChapter(id);
+
+        /// <summary>
+        /// update a chapter
+        /// </summary>
+        /// <param name="id">id of the chapter to update</param>
+        /// <param name="chapter">a chapter who contains all properties to change</param>
+        /// <returns>
+        /// status code :
+        /// 200 if the chapter is modified
+        /// 204 if we wanted to modify a chapter who don't exist
+        /// 208 if the new username of the chapter is already used
+        /// 500 if there was an internal error that doesn't allow to continue
+        /// 
+        /// return content :
+        /// the chapter modified when status code = 200
+        /// nothing when status code = 204
+        /// the chapter that already have the username when status code = 208
+        /// nothing when status code = 500
+        /// </returns>
+        [HttpPut("update/chapter")]
+        [ProducesResponseType(StatusCodes.Status200OK)]
+        [ProducesResponseType(StatusCodes.Status204NoContent)]
+        [ProducesResponseType(StatusCodes.Status208AlreadyReported)]
+        [ProducesResponseType(StatusCodes.Status500InternalServerError)]
+        public async Task<IActionResult> PutChapter([FromQuery] int id, [FromBody] ChapterDto chapter)
+            => await chapterController.PutChapter(id, chapter);
+
+        /// <summary>
+        /// get a chapter
+        /// </summary>
+        /// <param name="name">the name of the chapter</param>
+        /// <returns>
+        /// status code :
+        /// 200 when we got a chapter
+        /// 204 when we got null
+        /// 
+        /// return content :
+        /// the chapter that correspond to the name when status code = 200
+        /// nothing when status code 204
+        /// </returns>
+        [HttpGet("chapters/name")]
+        [ProducesResponseType(StatusCodes.Status200OK)]
+        [ProducesResponseType(StatusCodes.Status204NoContent)]
+        public async Task<IActionResult> GetChapter(string name)
+            => await chapterController.GetChapter(name);
+
     }
 }

WebApi/WebApi/Unit.cs

@@ -0,0 +1,293 @@
+using DbConnectionLibrairie;
+using DTOs;
+using ManagerInterfaces;
+using OrderCriterias;
+using ServiceManagers;
+
+namespace WebApi
+{
+    /// <summary>
+    /// just an interface between service managers and controllers
+    /// which contains all service managers methods who just calls
+    /// methods of service managers (we don't care about awaiting)
+    /// </summary>
+    public class Unit : IAdministratorManager<AdministratorDto>, IAnswerManager<AnswerDto>, IChapterManager<ChapterDto>, ILobbyManager<LobbyDto>, IPlayerManager<PlayerDto>, IQuestionManager<QuestionDto>
+    {
+        public IAdministratorManager<AdministratorDto> AdministratorManager { get; set; }
+        public IAnswerManager<AnswerDto> AnswerManager { get; set; }
+        public IChapterManager<ChapterDto> ChapterManager { get; private set; }
+        public ILobbyManager<LobbyDto> LobbyManager { get; private set; }
+        public IPlayerManager<PlayerDto> PlayerManager { get; private set; }
+        public IQuestionManager<QuestionDto> QuestionManager { get; private set; }
+
+        public Unit(MyDbContext dbContext)
+        {
+            AdministratorManager = new AdministratorServiceManager(dbContext);
+            AnswerManager = new AnswerServiceManager(dbContext);
+            ChapterManager = new ChapterServiceManager(dbContext);
+            LobbyManager = new LobbyServiceManager(dbContext);
+            PlayerManager = new PlayerServiceManager(dbContext);
+            QuestionManager = new QuestionServiceManager(dbContext);
+        }
+
+        public int getNbAdmins()
+        {
+            return AdministratorManager.getNbAdmins();
+        }
+
+        public Task<AdministratorDto> addAdmin(AdministratorDto admin)
+        {
+            return AdministratorManager.addAdmin(admin);
+        }
+
+        public Task<AdministratorDto?> removeAdmin(AdministratorDto admin)
+        {
+            return AdministratorManager.removeAdmin(admin);
+        }
+
+        public Task<AdministratorDto?> removeAdmin(int id)
+        {
+            return AdministratorManager.removeAdmin(id);
+        }
+
+        public Task<(int nbPages, IEnumerable<AdministratorDto>? administrators)> getAdministrators(int page, int count, AdministratorOrderCriteria orderCriteria = AdministratorOrderCriteria.ById)
+        {
+            return AdministratorManager.getAdministrators(page, count, orderCriteria);
+        }
+
+        public Task<AdministratorDto?> getAdministrator(int id)
+        {
+            return AdministratorManager.getAdministrator(id);
+        }
+
+        public Task<AdministratorDto?> getAdministratorByUsername(string username)
+        {
+            return AdministratorManager.getAdministratorByUsername(username);
+        }
+
+        public Task<bool> setPassword(string username, string newHashedPassword)
+        {
+            return AdministratorManager.setPassword(username, newHashedPassword);
+        }
+
+        public Task<AdministratorDto?> updateAdministrator(int id, AdministratorDto admin)
+        {
+            return AdministratorManager.updateAdministrator(id, admin);
+        }
+
+        public int getNbAnswers()
+        {
+            return AnswerManager.getNbAnswers();
+        }
+
+        public Task<(int nbPages, IEnumerable<AnswerDto>? answers)> getAnswers(int nb, int count, AnswerOrderCriteria orderCriteria = AnswerOrderCriteria.ById)
+        {
+            return AnswerManager.getAnswers(nb, count, orderCriteria);
+        }
+
+        public Task<IEnumerable<AnswerDto>?> getAnswers(string content)
+        {
+            return AnswerManager.getAnswers(content);
+        }
+
+        public Task<IEnumerable<AnswerDto>?> getAnswersByIdQuestion(int id)
+        {
+            return AnswerManager.getAnswersByIdQuestion(id);
+        }
+
+        public Task<AnswerDto?> updateAnswer(int id, AnswerDto answer)
+        {
+            return AnswerManager.updateAnswer(id, answer);
+        }
+
+        public Task<AnswerDto?> removeAnswer(int id)
+        {
+            return AnswerManager.removeAnswer(id);
+        }
+
+        public Task<AnswerDto?> removeAnswer(AnswerDto answer)
+        {
+            return AnswerManager.removeAnswer(answer);
+        }
+
+        public Task<AnswerDto> addAnswer(AnswerDto answer)
+        {
+            return AnswerManager.addAnswer(answer);
+        }
+
+        public Task<AnswerDto?> getAnswer(int id)
+        {
+            return AnswerManager.getAnswer(id);
+        }
+
+        public int getNbChapters()
+        {
+            return ChapterManager.getNbChapters();
+        }
+
+        public Task<ChapterDto> addChapter(ChapterDto chapter)
+        {
+            return ChapterManager.addChapter(chapter);
+        }
+
+        public Task<ChapterDto?> removeChapter(ChapterDto chapter)
+        {
+            return ChapterManager.removeChapter(chapter);
+        }
+
+        public Task<ChapterDto?> removeChapter(int id)
+        {
+            return ChapterManager.removeChapter(id);
+        }
+
+        public Task<ChapterDto?> getChapter(int id)
+        {
+            return ChapterManager.getChapter(id);
+        }
+
+        public Task<ChapterDto?> getChapter(string name)
+        {
+            return ChapterManager.getChapter(name);
+        }
+
+        public Task<(int nbPages, IEnumerable<ChapterDto>? chapters)> getChapters(int nb, int count, ChapterOrderCriteria orderCriteria = ChapterOrderCriteria.ById)
+        {
+            return ChapterManager.getChapters(nb, count, orderCriteria);
+        }
+
+        public Task<ChapterDto?> updateChapter(int id, string newName)
+        {
+            return ChapterManager.updateChapter(id, newName);
+        }
+
+        public int getNbLobbies()
+        {
+            return LobbyManager.getNbLobbies();
+        }
+
+        public Task<LobbyDto> addLobby(LobbyDto lobby)
+        {
+            return LobbyManager.addLobby(lobby);
+        }
+
+        public Task<LobbyDto?> removeLobby(LobbyDto lobby)
+        {
+            return LobbyManager.removeLobby(lobby);
+        }
+
+        public Task<LobbyDto?> removeLobby(int id)
+        {
+            return LobbyManager.removeLobby(id);
+        }
+
+        public Task<(int nbPages, IEnumerable<LobbyDto>? lobbies)> getLobbies(int nb, int count, LobbyOrderCriteria orderCriteria = LobbyOrderCriteria.ById)
+        {
+            return LobbyManager.getLobbies(nb, count, orderCriteria);
+        }
+
+        public Task<LobbyDto?> getLobby(int id)
+        {
+            return LobbyManager.getLobby(id);
+        }
+
+        public int getNbPlayers()
+        {
+            return PlayerManager.getNbPlayers();
+        }
+
+        public Task<PlayerDto> addPlayer(PlayerDto player)
+        {
+            return PlayerManager.addPlayer(player);
+        }
+
+        public Task<PlayerDto?> removePlayer(PlayerDto player)
+        {
+            return PlayerManager.removePlayer(player);
+        }
+
+        public Task<PlayerDto?> removePlayer(int id)
+        {
+            return PlayerManager.removePlayer(id);
+        }
+
+        public Task<(int nbPages, IEnumerable<PlayerDto>? players)> getPlayers(int nb, int count, PlayerOrderCriteria orderCriteria = PlayerOrderCriteria.ById)
+        {
+            return PlayerManager.getPlayers(nb, count, orderCriteria);
+        }
+
+        public Task<PlayerDto?> getPlayer(int id)
+        {
+            return PlayerManager.getPlayer(id);
+        }
+
+        public Task<PlayerDto?> getPlayer(string nickname)
+        {
+            return PlayerManager.getPlayer(nickname);
+        }
+
+        public Task<IEnumerable<PlayerDto>?> getPlayersInALobby(int idLobby)
+        {
+            return PlayerManager.getPlayersInALobby(idLobby);
+        }
+
+        public Task<int?> getMaxScorePlayer(int id, int idChapter)
+        {
+            return PlayerManager.getMaxScorePlayer(id, idChapter);
+        }
+
+        public Task<int?> getMaxScorePlayer(int id)
+        {
+            return PlayerManager.getMaxScorePlayer(id);
+        }
+
+        public int getNbQuestions()
+        {
+            return QuestionManager.getNbQuestions();
+        }
+
+        public Task<QuestionDto> addQuestion(QuestionDto question)
+        {
+            return QuestionManager.addQuestion(question);
+        }
+
+        public Task<QuestionDto?> removeQuestion(QuestionDto question)
+        {
+            return QuestionManager.removeQuestion(question);
+        }
+
+        public Task<QuestionDto?> removeQuestion(int id)
+        {
+            return QuestionManager.removeQuestion(id);
+        }
+
+        public Task<(int nbPages, IEnumerable<QuestionDto>? questions)> getQuestions(int nb, int count, QuestionOrderCriteria orderCriteria = QuestionOrderCriteria.ById)
+        {
+            return QuestionManager.getQuestions(nb, count, orderCriteria);
+        }
+
+        public Task<QuestionDto?> getQuestion(int id)
+        {
+            return QuestionManager.getQuestion(id);
+        }
+
+        public Task<QuestionDto?> updateQuestion(int id, QuestionDto question)
+        {
+            return QuestionManager.updateQuestion(id, question);
+        }
+
+        public Task<QuestionDto?> updateQuestionNbFalls(int id)
+        {
+            return QuestionManager.updateQuestionNbFalls(id);
+        }
+
+        public Task<IEnumerable<QuestionDto>> addQuestions(IEnumerable<QuestionDto> questions)
+        {
+            return QuestionManager.addQuestions(questions);
+        }
+
+        public Task<(int nbPages, IEnumerable<QuestionDto>? questions)?> getQuestionsByChapterAndDifficulty(int idChapter, int difficulty, int nb, int count, QuestionOrderCriteria orderCriteria = QuestionOrderCriteria.ById)
+        {
+            return QuestionManager.getQuestionsByChapterAndDifficulty(idChapter, difficulty, nb, count, orderCriteria);
+        }
+    }
+}