MVC implemented to TopMangaPage

2 files changed, 123 insertions, 121 deletions

diff --git a/app/src/main/java/xyz/adjutor/aniki/presentation/controller/TopMangaController.kt b/app/src/main/java/xyz/adjutor/aniki/presentation/controller/TopMangaController.kt
index cfee062..8eaa31d 100644
--- a/app/src/main/java/xyz/adjutor/aniki/presentation/controller/TopMangaController.kt
+++ b/app/src/main/java/xyz/adjutor/aniki/presentation/controller/TopMangaController.kt
@@ -1,29 +1,131 @@
 package xyz.adjutor.aniki.presentation.controller
 
+import android.content.Context
+import android.content.SharedPreferences
+import android.view.View
+import com.google.gson.Gson
+import com.google.gson.GsonBuilder
+import com.google.gson.reflect.TypeToken
+import retrofit2.Call
+import retrofit2.Callback
+import retrofit2.Response
+import retrofit2.Retrofit
+import retrofit2.converter.gson.GsonConverterFactory
+import xyz.adjutor.aniki.data.manga.TopMangaApi
+import xyz.adjutor.aniki.presentation.model.manga.TopManga
+import xyz.adjutor.aniki.presentation.model.manga.TopMangaResponse
+import xyz.adjutor.aniki.presentation.view.manga.TopMangaPage
+import java.lang.reflect.Type
+import kotlin.properties.Delegates
+
 class TopMangaController {
 
-    fun TopMangaController() {
+    lateinit var sharedPreferences: SharedPreferences
+    lateinit var gson: Gson
+    lateinit var baseUrl: String //the api's base url
+    var page by Delegates.notNull<Int>()
+    lateinit var view: TopMangaPage
+
+    fun onStart(topMangaPage: TopMangaPage, viewTopMangaPage: View) {
+
+        view = topMangaPage
+        baseUrl = "https://api.jikan.moe/" //the api's base url
+        page = 1
+        gson = GsonBuilder()
+            .setLenient()
+            .create()
+        sharedPreferences =
+            viewTopMangaPage.context.getSharedPreferences("sp_manga", Context.MODE_PRIVATE)
 
+
+        val mangaList: List<TopManga>? = getDataFromCache()
+        if (mangaList != null) {
+            view.showList(viewTopMangaPage, mangaList)
+        } else {
+            makeApiCall(view, baseUrl, 1)
+        }
     }
 
-    fun onStart() {
+    private fun makeApiCall(view: TopMangaPage, BASE_URL: String, page: Int) {
+
+        val retrofit = Retrofit.Builder()
+            .baseUrl(BASE_URL)
+            .addConverterFactory(GsonConverterFactory.create(gson))
+            .build()
+
+        val service = retrofit.create(TopMangaApi::class.java)
+        val call = service.getTopMangaData(page)
 
+        call.enqueue(object : Callback<TopMangaResponse> {
+            override fun onResponse(
+                call: Call<TopMangaResponse>,
+                response: Response<TopMangaResponse>
+            ) {
+                if (response.isSuccessful && response.body() != null) { //if the code returned is >= 200 and < 300 AND the the body ain't empty
+
+                    val mangaList: List<TopManga> = response.body()!!
+                        .getResults() //getting the "top" field containing our list of TopMangas
+                    saveList(mangaList)
+                    view.showList(
+                        view.requireView(),
+                        mangaList
+                    ) //calling the method in charge of displaying on the recyclerview
+
+                } else {
+                    view.showError() //a snackbar
+                }
+            }
+
+            override fun onFailure(call: Call<TopMangaResponse>, t: Throwable) {
+                view.showError()
+            }
+
+        })
     }
 
-    fun onButtonTopMangaClick() {
+    private fun saveList(mangaList: List<TopManga>) {
+        val jsonString: String = gson.toJson(mangaList)
 
+        sharedPreferences
+            .edit()
+            .putString("jsonMangaList", jsonString)
+            .apply()
     }
 
-    fun onButtonTopAnimeClick() {
+    private fun getDataFromCache(): List<TopManga>? {
+        //the value of the mangaList json, if nothing is found, return null
+        val jsonManga: String? = sharedPreferences.getString("jsonMangaList", null)
 
+        //if it's null, well, return null
+        return if (jsonManga == null) {
+            null
+        } else { //else deserialize the list and return it
+            val listType: Type = object : TypeToken<List<TopManga>>() {}.type
+            gson.fromJson(jsonManga, listType)
+        }
     }
 
-    fun onButtonSearchMangaClick() {
 
+    fun onButtonPrevClick() {
+        if (page > 1) { // if we're not on the first page, because we can't go back if we're on the first one.
+            page -= 1
+            makeApiCall(view, baseUrl, page)
+            view.showText("Page $page has been loaded.")
+        } else {
+            view.showText("You're already on page 1.")
+        }
     }
 
-    fun onButtonSearchAnimeClick() {
+    fun onButtonNextClick() {
+        page += 1
+        makeApiCall(view, baseUrl, page)
+        view.showText("Page $page has been loaded.")
+    }
 
+    fun updateList() {
+        makeApiCall(view, baseUrl, 1)
+        view.showText("Data refreshed")
+        page = 1
     }
 
 }
\ No newline at end of file
diff --git a/app/src/main/java/xyz/adjutor/aniki/presentation/view/manga/TopMangaPage.kt b/app/src/main/java/xyz/adjutor/aniki/presentation/view/manga/TopMangaPage.kt
index 943019d..2a05904 100644
--- a/app/src/main/java/xyz/adjutor/aniki/presentation/view/manga/TopMangaPage.kt
+++ b/app/src/main/java/xyz/adjutor/aniki/presentation/view/manga/TopMangaPage.kt
@@ -1,7 +1,5 @@
 package xyz.adjutor.aniki.presentation.view.manga
 
-import android.content.Context
-import android.content.SharedPreferences
 import android.os.Bundle
 import android.view.LayoutInflater
 import android.view.View
@@ -13,32 +11,15 @@ import androidx.recyclerview.widget.LinearLayoutManager
 import androidx.recyclerview.widget.RecyclerView
 import androidx.swiperefreshlayout.widget.SwipeRefreshLayout
 import com.google.android.material.snackbar.Snackbar
-import com.google.gson.Gson
-import com.google.gson.GsonBuilder
-import com.google.gson.reflect.TypeToken
-import retrofit2.Call
-import retrofit2.Callback
-import retrofit2.Response
-import retrofit2.Retrofit
-import retrofit2.converter.gson.GsonConverterFactory
 import xyz.adjutor.aniki.R
-import xyz.adjutor.aniki.data.manga.TopMangaApi
 import xyz.adjutor.aniki.presentation.controller.TopMangaController
 import xyz.adjutor.aniki.presentation.model.manga.TopManga
-import xyz.adjutor.aniki.presentation.model.manga.TopMangaResponse
-import java.lang.reflect.Type
-import kotlin.properties.Delegates
 
 //view
 class TopMangaPage : Fragment() {
 
     lateinit var controller: TopMangaController
 
-    private lateinit var sharedPreferences: SharedPreferences
-    lateinit var gson: Gson
-    private lateinit var baseUrl: String //the api's base url
-    private var page by Delegates.notNull<Int>()
-
     override fun onCreateView(
         inflater: LayoutInflater, container: ViewGroup?,
         savedInstanceState: Bundle?
@@ -46,40 +27,13 @@ class TopMangaPage : Fragment() {
         // Inflate the layout for this fragment
         val view = inflater.inflate(R.layout.top_manga_page, container, false)
 
-        //controller.onStart()
-
-        gson = GsonBuilder()
-            .setLenient()
-            .create()
-        baseUrl = "https://api.jikan.moe/" //the api's base url
-        page = 1
-
-        sharedPreferences = view.context.getSharedPreferences("sp_manga", Context.MODE_PRIVATE)
-
-        val mangaList: List<TopManga>? = getDataFromCache()
-        if (mangaList != null) {
-            showList(view, mangaList)
-        } else {
-            makeApiCall(view, baseUrl, 1)
-        }
+        controller = TopMangaController()
+        controller.onStart(this, view)
 
         return view
 
     }
 
-    private fun getDataFromCache(): List<TopManga>? {
-        //the value of the mangaList json, if nothing is found, return null
-        val jsonManga: String? = sharedPreferences.getString("jsonMangaList", null)
-
-        //if it's null, well, return null
-        return if (jsonManga == null) {
-            null
-        } else { //else deserialize the list and return it
-            val listType: Type = object : TypeToken<List<TopManga>>() {}.type
-            gson.fromJson(jsonManga, listType)
-        }
-    }
-
     override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
         super.onViewCreated(view, savedInstanceState)
 
@@ -88,34 +42,16 @@ class TopMangaPage : Fragment() {
             findNavController().navigate(R.id.action_TopMangaPage_to_HomePage)
         }
         view.findViewById<Button>(R.id.button_prev).setOnClickListener {
-            if (page > 1) { // if we're not on the first page, because we can't go back if we're on the first one.
-                page -= 1
-                makeApiCall(view, baseUrl, page)
-                Snackbar.make(requireView(), "Page $page has been loaded.", Snackbar.LENGTH_SHORT)
-                    .setAction("Action", null).show()
-            } else {
-                Snackbar.make(requireView(), "You're already on page 1.", Snackbar.LENGTH_SHORT)
-                    .setAction("Action", null).show()
-            }
+            controller.onButtonPrevClick()
         }
         view.findViewById<Button>(R.id.button_next).setOnClickListener {
-            page += 1
-            makeApiCall(view, baseUrl, page)
-            Snackbar.make(requireView(), "Page $page has been loaded.", Snackbar.LENGTH_SHORT)
-                .setAction("Action", null).show()
-        }
-
-        fun updateList() {
-            makeApiCall(view, baseUrl, 1)
-            Snackbar.make(requireView(), "Data refreshed", Snackbar.LENGTH_SHORT)
-                .setAction("Action", null).show()
+            controller.onButtonNextClick()
         }
 
         //refresh when swiping down at the top of the page
         val swipeRefresh: SwipeRefreshLayout = view.findViewById(R.id.swiperefresh)
         swipeRefresh.setOnRefreshListener {
-            updateList()
-            page = 1
+            controller.updateList()
             swipeRefresh.isRefreshing = false
         }
 
@@ -130,53 +66,8 @@ class TopMangaPage : Fragment() {
         (recyclerView.adapter as TopMangaAdapter).notifyDataSetChanged()
     }
 
-    private fun makeApiCall(view: View, BASE_URL: String, page: Int) {
-
-        val retrofit = Retrofit.Builder()
-            .baseUrl(BASE_URL)
-            .addConverterFactory(GsonConverterFactory.create(gson))
-            .build()
-
-        val service = retrofit.create(TopMangaApi::class.java)
-        val call = service.getTopMangaData(page)
-
-        call.enqueue(object : Callback<TopMangaResponse> {
-            override fun onResponse(
-                call: Call<TopMangaResponse>,
-                response: Response<TopMangaResponse>
-            ) {
-                if (response.isSuccessful && response.body() != null) { //if the code returned is >= 200 and < 300 AND the the body ain't empty
-
-                    val mangaList: List<TopManga> = response.body()!!
-                        .getResults() //getting the "top" field containing our list of TopMangas
-                    saveList(mangaList)
-                    showList(
-                        view,
-                        mangaList
-                    ) //calling the method in charge of displaying on the recyclerview
-
-                } else {
-                    showError() //a snackbar
-                }
-            }
-
-            override fun onFailure(call: Call<TopMangaResponse>, t: Throwable) {
-                showError()
-            }
-
-        })
-    }
-
-    private fun saveList(mangaList: List<TopManga>) {
-        val jsonString: String = gson.toJson(mangaList)
 
-        sharedPreferences
-            .edit()
-            .putString("jsonMangaList", jsonString)
-            .apply()
-    }
-
-    private fun showError() {
+    fun showError() {
         Snackbar.make(
             requireView(),
             "API ERROR : Verify your internet connection.",
@@ -185,4 +76,13 @@ class TopMangaPage : Fragment() {
             .setAction("Action", null).show()
     }
 
+    fun showText(text: String) {
+        Snackbar.make(
+            requireView(),
+            text,
+            Snackbar.LENGTH_SHORT
+        )
+            .setAction("Action", null).show()
+    }
+
 }
\ No newline at end of file