Merge pull request #13 from PNU-Sinbaram/snsfeed

Implement activity of SNS Feed(Post)

client/app/build.gradle

@@ -53,6 +53,8 @@ dependencies {
     // Retrofit2 for REST API
     implementation 'com.squareup.retrofit2:retrofit:2.9.0'
     implementation 'com.squareup.retrofit2:converter-moshi:2.9.0'
+    implementation 'com.squareup.retrofit2:converter-gson:2.6.2'
+    implementation 'com.squareup.retrofit2:converter-scalars:2.9.0'
     // 네이버 지도 SDK
     implementation 'com.naver.maps:map-sdk:3.12.0'
     // Obj - a simple Wavefront OBJ file loader
@@ -67,4 +69,6 @@ dependencies {
     implementation("com.gorisse.thomas.sceneform:sceneform:1.19.5")
     // Google Location Service
     implementation 'com.google.android.gms:play-services-location:16.0.0'
-}
+    // Glide Image loading framework
+    implementation 'com.github.bumptech.glide:glide:4.12.0'
+}

client/app/src/main/java/com/sinbaram/mapgo/API/ServerClient.kt

@@ -3,11 +3,17 @@ package com.sinbaram.mapgo.API
 import com.sinbaram.mapgo.Model.CheckInResponse
 import com.sinbaram.mapgo.Model.CheckInRequest
 import com.sinbaram.mapgo.Model.Recommendation
+import com.sinbaram.mapgo.Model.PostFeedItem
+import com.sinbaram.mapgo.Model.Comment
 import retrofit2.http.Body
 import retrofit2.http.GET
 import retrofit2.http.Headers
 import retrofit2.http.POST
 import retrofit2.http.Query
+import retrofit2.http.Path
+import retrofit2.http.Multipart
+import retrofit2.http.Part
+import retrofit2.http.HTTP
 import retrofit2.Call
 
 /** Collections of naver openapi search interface */
@@ -34,4 +40,39 @@ interface ServerClient {
         @Query("epsilon") epsilon: Int,
         @Query("keywords") keywords: String
     ): Call<List<Recommendation>>
+
+    /** Get posts from mapgo server */
+    @GET("Mapgo/sns/post/")
+    fun GetPosts() : Call<List<PostFeedItem>>
+
+    /** Get comments from post with {id} */
+    @GET("Mapgo/sns/post/{id}/comment/")
+    fun GetComments(
+        @Path("id") id: Int
+    ) : Call<List<Comment>>
+
+    /** Post comment to post with {id} */
+    @Multipart
+    @POST("Mapgo/sns/post/{id}/comment/")
+    fun PostComment(
+        @Path("id") id: Int,
+        @Part("writer") writer: Int,
+        @Part("contents") contents: String
+    ) : Call<String>
+
+    /** add like to post with {id}, as userID */
+    @Multipart
+    @POST("Mapgo/sns/post/{id}/like/")
+    fun AddLike(
+        @Path("id") id: Int,
+        @Part("userID") userID: Int
+    ) : Call<String>
+
+    /** remove like to post with {id}, as userID */
+    @Multipart
+    @HTTP(method="DELETE", hasBody=true, path="Mapgo/sns/post/{id}/like/")
+    fun DeleteLike(
+        @Path("id") id: Int,
+        @Part("userID") userID: Int
+    ) : Call<String>
 }

client/app/src/main/java/com/sinbaram/mapgo/API/ServerPostAPI.kt

@@ -0,0 +1,25 @@
+package com.sinbaram.mapgo.API
+
+import com.sinbaram.mapgo.BuildConfig
+import retrofit2.Retrofit
+import retrofit2.converter.gson.GsonConverterFactory
+import retrofit2.converter.scalars.ScalarsConverterFactory
+
+/** Retrofit singleton instance for mapgo server post
+ * ServerAPI's MoshiConverterFactory was not suitable as response
+ * of PostFeedItem and String, so changed to Gson and Scalars each.
+ **/
+object ServerPostAPI {
+    var BASE_URL: String = BuildConfig.SERVER_ADDRESS
+    var retrofit: Retrofit? = null
+    fun GetSnsClient(): Retrofit? {
+        if (retrofit == null) {
+            retrofit = Retrofit.Builder()
+                .baseUrl(BASE_URL)
+                .addConverterFactory(ScalarsConverterFactory.create())
+                .addConverterFactory(GsonConverterFactory.create())
+                .build()
+        }
+        return retrofit
+    }
+}

client/app/src/main/java/com/sinbaram/mapgo/CommentRecyclerAdapter.kt

@@ -0,0 +1,56 @@
+package com.sinbaram.mapgo
+
+import android.content.Context
+import android.view.LayoutInflater
+import android.view.View
+import android.view.ViewGroup
+import android.widget.ImageView
+import android.widget.TextView
+import androidx.recyclerview.widget.RecyclerView
+import com.bumptech.glide.Glide
+
+
+/** Recycler adapter to show comments from List of Map containing content, writer, writer image */
+class CommentRecyclerAdapter internal constructor(var context: Context, list: MutableList<Map<String, String>>?) :
+    RecyclerView.Adapter<CommentRecyclerAdapter.ViewHolder>() {
+    private var mData: MutableList<Map<String, String>>? = null
+
+    /** initialize views of comment_recycler.xml */
+    inner class ViewHolder internal constructor(itemView: View) :
+        RecyclerView.ViewHolder(itemView) {
+        var content: TextView
+        var writer: TextView
+        var image: ImageView
+
+        init {
+            content = itemView.findViewById(R.id.commentContent)
+            writer = itemView.findViewById(R.id.commentWriter)
+            image = itemView.findViewById(R.id.commentImage)
+        }
+    }
+
+    override fun onCreateViewHolder(
+        parent: ViewGroup,
+        viewType: Int
+    ): ViewHolder {
+        val context: Context = parent.context
+        val inflater =
+            context.getSystemService(Context.LAYOUT_INFLATER_SERVICE) as LayoutInflater
+        val view: View = inflater.inflate(R.layout.comment_recycler, parent, false)
+        return ViewHolder(view)
+    }
+
+    override fun onBindViewHolder(holder: ViewHolder, position: Int) {
+        holder.writer.text = mData!![position]["writer"]
+        holder.content.text = mData!![position]["contents"]
+        Glide.with(context).load(mData!![position]["writerImage"]).into(holder.image)
+    }
+
+    override fun getItemCount(): Int {
+        return mData!!.size
+    }
+
+    init {
+        mData = list
+    }
+}

client/app/src/main/java/com/sinbaram/mapgo/ImageSliderAdapter.kt

@@ -0,0 +1,29 @@
+package com.sinbaram.mapgo
+
+import android.content.Context
+import android.view.LayoutInflater
+import android.view.ViewGroup
+import android.widget.ImageView
+import androidx.recyclerview.widget.RecyclerView
+import com.bumptech.glide.Glide
+
+/** ViewPager2 Adapter to show images from post */
+class ImageSliderAdapter(val context: Context, imageList: MutableList<String>) : RecyclerView.Adapter<ImageSliderAdapter.PagerViewHolder>() {
+
+    var imagelist = imageList
+
+    /** Initialize ImageView from image_viewpager.xml */
+    inner class PagerViewHolder(parent: ViewGroup) : RecyclerView.ViewHolder
+        (LayoutInflater.from(parent.context).inflate(R.layout.image_viewpager, parent, false)) {
+        val image = itemView.findViewById<ImageView>(R.id.imageView)
+    }
+
+    override fun onCreateViewHolder(parent: ViewGroup, viewType: Int) = PagerViewHolder((parent))
+
+    override fun onBindViewHolder(holder: PagerViewHolder, position: Int) {
+        Glide.with(context).load(imagelist[position]).into(holder.image)
+
+    }
+
+    override fun getItemCount(): Int = imagelist.size
+}

client/app/src/main/java/com/sinbaram/mapgo/Model/PostFeedItem.kt

@@ -0,0 +1,59 @@
+package com.sinbaram.mapgo.Model
+
+import java.io.Serializable
+
+/** data class representing SNS Post
+ * @property comment : List of dataclass Comment
+ * @property contents : Content of sns post
+ * @property like : List of dataclass Like which contains liker's userId
+ * @property location : Location information which sns post contains
+ * @property postId : id of sns post
+ * @property postImage : List of sns post's images url
+ * @property postTime : String of sns post's upload time
+ * @property totalLikes : Number of person who liked this post
+ * @property writer : Writer of sns post which contains writer's deviceId, userId, profile image as String, and username
+ * */
+data class PostFeedItem(
+    val comment: List<Comment>,
+    val contents: String,
+    val like: List<Like>,
+    val location: Location,
+    val postID: Int,
+    val postImage: List<PostImage>,
+    val postTime: String,
+    val totalLikes: Int,
+    val writer: Writer
+) : Serializable
+
+/** data class representing single comment object */
+data class Comment(
+    val writer: Writer,
+    val contents: String,
+    val post: Int
+) : Serializable
+
+/** data class representing location information, latitude as [lat], longitude as [lng] */
+data class Location(
+    val lat: Double,
+    val lng: Double
+) : Serializable
+
+/** data class representing writer of post */
+data class Writer(
+    val deviceID: String,
+    val id: Int,
+    val picture: String,
+    val username: String
+) : Serializable
+
+/** data class representing single image object */
+data class PostImage(
+    val image: String,
+    val post: Int
+) : Serializable
+
+/** data class representing liker's information */
+data class Like(
+    val liker: Int,
+    val post: Int
+) : Serializable