From b8f8069a733ad247ac98a8db809e42f5e1fe1552 Mon Sep 17 00:00:00 2001
From: Litegene <khchang260@gmail.com>
Date: Fri, 17 Jun 2022 23:04:09 +0200
Subject: [PATCH] More mappers

---
 .../business/playlist/PlaylistMapper.java     | 45 ++++++++++++++++
 .../business/playlist/PlaylistService.java    | 25 +++------
 .../business/video/VideoMapper.java           | 51 +++++++++++++++++++
 .../business/video/VideoService.java          | 22 +++-----
 .../controller/VideoController.java           |  4 --
 5 files changed, 109 insertions(+), 38 deletions(-)
 create mode 100644 backend/kaiser/src/main/java/com/example/springKaiser/business/playlist/PlaylistMapper.java
 create mode 100644 backend/kaiser/src/main/java/com/example/springKaiser/business/video/VideoMapper.java

diff --git a/backend/kaiser/src/main/java/com/example/springKaiser/business/playlist/PlaylistMapper.java b/backend/kaiser/src/main/java/com/example/springKaiser/business/playlist/PlaylistMapper.java
new file mode 100644
index 0000000..29ea2fc
--- /dev/null
+++ b/backend/kaiser/src/main/java/com/example/springKaiser/business/playlist/PlaylistMapper.java
@@ -0,0 +1,45 @@
+package com.example.springKaiser.business.playlist;
+
+import com.example.springKaiser.entities.PlaylistName;
+import com.example.springKaiser.entities.PlaylistVideo;
+import com.example.springKaiser.entities.Video;
+import com.example.springKaiser.repositories.PlaylistVideoRepository;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.stereotype.Service;
+
+import java.util.ArrayList;
+import java.util.List;
+
+@Service
+public class PlaylistMapper {
+
+//    @Autowired
+//    PlaylistVideoRepository playlistVideoRepository;
+
+    ListPlaylistByVideoNameAndChannelNameDto playlistEntityToPlaylistDto(List<PlaylistVideo> playlistVideos){
+        ListPlaylistByVideoNameAndChannelNameDto listPlaylistByVideoNameAndChannelNameDtos = new ListPlaylistByVideoNameAndChannelNameDto();
+        listPlaylistByVideoNameAndChannelNameDtos.setPlaylistName(playlistVideos.get(0).getPlaylistName().getPlaylistname());
+        listPlaylistByVideoNameAndChannelNameDtos.setVideoName(playlistVideos.get(0).getVideo().getName());
+        listPlaylistByVideoNameAndChannelNameDtos.setChannelName(playlistVideos.get(0).getVideo().getChannel().getChannelName());
+        return listPlaylistByVideoNameAndChannelNameDtos;
+    }
+
+    List<ListPlaylistByChannelDto> playlistEntityToPlaylistChannelDto(List<PlaylistVideo> playlistVideos){
+        List<ListPlaylistByChannelDto> listPlaylistByChannelDtos = new ArrayList<>();
+        for (int i = 0; i < playlistVideos.size(); i++) {
+            ListPlaylistByChannelDto listPlaylistByChannelDto = new ListPlaylistByChannelDto();
+            listPlaylistByChannelDto.setPlaylistName(playlistVideos.get(i).getPlaylistName().getPlaylistname());
+            listPlaylistByChannelDto.setChannelName(playlistVideos.get(i).getVideo().getChannel().getChannelName());
+            listPlaylistByChannelDtos.add(listPlaylistByChannelDto);
+        }
+        return listPlaylistByChannelDtos;
+    }
+
+    PlaylistVideo addPlaylistAndVideo(PlaylistName playlistName, Video video){
+        PlaylistVideo playlistVideo = new PlaylistVideo();
+        playlistVideo.setPlaylistName(playlistName);
+        playlistVideo.setVideo(video);
+        return playlistVideo;
+    }
+}
+
diff --git a/backend/kaiser/src/main/java/com/example/springKaiser/business/playlist/PlaylistService.java b/backend/kaiser/src/main/java/com/example/springKaiser/business/playlist/PlaylistService.java
index 4e5f779..857ef65 100644
--- a/backend/kaiser/src/main/java/com/example/springKaiser/business/playlist/PlaylistService.java
+++ b/backend/kaiser/src/main/java/com/example/springKaiser/business/playlist/PlaylistService.java
@@ -26,6 +26,9 @@ public class PlaylistService {
     @Autowired
     VideoRepository videoRepository;
 
+    @Autowired
+    PlaylistMapper playlistMapper;
+
 
     public void addPlaylist(PlaylistName playlistName) {
 
@@ -63,33 +66,17 @@ public String addVideoToPlaylist(String playlist, String videoName) {
 
         PlaylistName playlistName = playlistNameRepository.findOneByName(playlist);
         Video video = videoRepository.findOneByName(videoName);
-        PlaylistVideo playlistVideo = new PlaylistVideo();
-        playlistVideo.setPlaylistName(playlistName);
-        playlistVideo.setVideo(video);
-        playlistVideoRepository.save(playlistVideo);
-
+        playlistVideoRepository.save(playlistMapper.addPlaylistAndVideo(playlistName, video));
         return "Success";
     }
 
     public ListPlaylistByVideoNameAndChannelNameDto listByVideoNameAndChannelName(String videoName, String channelName) {
         List<PlaylistVideo> playlistVideos = playlistVideoRepository.findByVideoNameAndChannelName(videoName, channelName);
-        ListPlaylistByVideoNameAndChannelNameDto listPlaylistByVideoNameAndChannelNameDtos = new ListPlaylistByVideoNameAndChannelNameDto();
-        listPlaylistByVideoNameAndChannelNameDtos.setPlaylistName(playlistVideos.get(0).getPlaylistName().getPlaylistname());
-        listPlaylistByVideoNameAndChannelNameDtos.setVideoName(playlistVideos.get(0).getVideo().getName());
-        listPlaylistByVideoNameAndChannelNameDtos.setChannelName(playlistVideos.get(0).getVideo().getChannel().getChannelName());
-        return listPlaylistByVideoNameAndChannelNameDtos;
+        return playlistMapper.playlistEntityToPlaylistDto(playlistVideos);
     }
 
     public List<ListPlaylistByChannelDto> listPlaylistNameByChannelName(String channelName) {
         List<PlaylistVideo> playlistVideos = playlistVideoRepository.findPlaylistNameByChannelName(channelName);
-        ListPlaylistByChannelDto listPlaylistByChannelDto = new ListPlaylistByChannelDto();
-        List<ListPlaylistByChannelDto> listPlaylistByChannelDtos = new ArrayList<>();
-        for (int i = 0; i < playlistVideos.size(); i++) {
-            listPlaylistByChannelDto.setPlaylistName(playlistVideos.get(i).getPlaylistName().getPlaylistname());
-            listPlaylistByChannelDto.setChannelName(playlistVideos.get(i).getVideo().getChannel().getChannelName());
-            listPlaylistByChannelDtos.add(listPlaylistByChannelDto);
-
-        }
-        return listPlaylistByChannelDtos;
+        return playlistMapper.playlistEntityToPlaylistChannelDto(playlistVideos);
     }
 }
diff --git a/backend/kaiser/src/main/java/com/example/springKaiser/business/video/VideoMapper.java b/backend/kaiser/src/main/java/com/example/springKaiser/business/video/VideoMapper.java
new file mode 100644
index 0000000..0305fee
--- /dev/null
+++ b/backend/kaiser/src/main/java/com/example/springKaiser/business/video/VideoMapper.java
@@ -0,0 +1,51 @@
+package com.example.springKaiser.business.video;
+
+import com.example.springKaiser.business.student.StudentDto;
+import com.example.springKaiser.entities.Channel;
+import com.example.springKaiser.entities.PlaylistVideo;
+import com.example.springKaiser.entities.Video;
+import com.example.springKaiser.repositories.ChannelRepository;
+import com.example.springKaiser.repositories.PlaylistVideoRepository;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.stereotype.Service;
+
+import java.util.ArrayList;
+import java.util.List;
+
+@Service
+public class VideoMapper {
+
+    @Autowired ChannelRepository channelRepository;
+//  method can be called toEntity()
+    //saving video
+    Video videoDtoToVideoEntity(VideoDto videoDto){
+        Video video = new Video();
+        video.setName(videoDto.getName());
+        video.setComments(videoDto.getComments());
+        video.setLikes(videoDto.getLikes());
+        video.setViews(videoDto.getViews());
+        Channel channel = channelRepository.findById(videoDto.getChannelId()).get();
+        video.setChannel(channel);
+        return video;
+    }
+
+    List<VideoDto> findByChannelId(int channelId, List<VideoDto> listVideoDto ){
+        List<VideoDto> listByChannelNameDto = new ArrayList<>();
+        for (VideoDto videoDto : listVideoDto){
+            if (videoDto.getChannelId() == channelId){
+                listByChannelNameDto.add(videoDto);
+            }
+        }
+        return listByChannelNameDto;
+    }
+//    List<Video> toList(List<VideoDto> videoDtoList){
+//        List<Video> listByChannelNameDto = new ArrayList<>();
+//
+//        for (int i = 0; i < videoDtoList.size(); i++) {
+//            Video video = videoDtoToVideoEntity(videoDtoList.get(i));
+//            listByChannelNameDto.add(video);
+//        }
+//        return listByChannelNameDto;
+//    }
+
+}
diff --git a/backend/kaiser/src/main/java/com/example/springKaiser/business/video/VideoService.java b/backend/kaiser/src/main/java/com/example/springKaiser/business/video/VideoService.java
index fe7e350..e5113c5 100644
--- a/backend/kaiser/src/main/java/com/example/springKaiser/business/video/VideoService.java
+++ b/backend/kaiser/src/main/java/com/example/springKaiser/business/video/VideoService.java
@@ -20,6 +20,8 @@ public class VideoService {
     @Autowired
     ChannelRepository channelRepository;
 
+    @Autowired VideoMapper videoMapper;
+
 //    public String saveAVideo(Video video){
 //        return video.getName();
 //    }
@@ -78,24 +80,14 @@ private VideoDto convertDto(Video video){
 //    }
 //Homework
     public List<VideoDto> listByChannelDto(int channelId){
-        List<VideoDto> listByChannelNameDto = new ArrayList<>();
-        for (VideoDto videoDto : listVideoDto()){
-            if (videoDto.getChannelId() == channelId){
-                listByChannelNameDto.add(videoDto);
-            }
-        }
-        return listByChannelNameDto;
+//        List<VideoDto> videoDtos = videoMapper.findByChannelId(channelId, listVideoDto();
+//        return videoDtos;
+        //above code does the same as below
+        return videoMapper.findByChannelId(channelId, listVideoDto());
     }
 
     public String saveVideos(VideoDto videoDto){
-        Video video = new Video();
-        video.setName(videoDto.getName());
-
-        video.setComments(videoDto.getComments());
-        video.setLikes(videoDto.getLikes());
-        video.setViews(videoDto.getViews());
-        Channel channel = channelRepository.findById(videoDto.getChannelId()).get();
-        video.setChannel(channel);
+        Video video = videoMapper.videoDtoToVideoEntity(videoDto);
         videoRepository.save(video);
         return "Success " + video.getName();
     }
diff --git a/backend/kaiser/src/main/java/com/example/springKaiser/controller/VideoController.java b/backend/kaiser/src/main/java/com/example/springKaiser/controller/VideoController.java
index 2486873..264e71f 100644
--- a/backend/kaiser/src/main/java/com/example/springKaiser/controller/VideoController.java
+++ b/backend/kaiser/src/main/java/com/example/springKaiser/controller/VideoController.java
@@ -25,13 +25,11 @@ public class VideoController {
 
         @GetMapping("/videoList")
         public List<Video> listVideo() {
-
             return videoService.listVideo();
         }
 
         @GetMapping("/videoListDto")
         public List<VideoDto> listVideoDto() {
-
             return videoService.listVideoDto();
         }
 
@@ -47,13 +45,11 @@ public List<VideoDto> listByChannelDto(@PathVariable int channelId){
 
         @PostMapping("/saveVideo")
         public void saveVideo(@RequestBody Video video){
-
             videoService.saveVideo(video);
         }
 
         @PostMapping("/saveVideoDto")
         public String saveVideoDto(@RequestBody VideoDto videoDto){
-
             return videoService.saveVideos(videoDto);
         }
 }