Домашнее задание CustomView

app/build.gradle

@@ -1,6 +1,9 @@
 plugins {
     alias(libs.plugins.androidApplication)
     alias(libs.plugins.kotlinAndroid)
+    alias(libs.plugins.kotlin.serialization)
+    id 'kotlin-parcelize'
+    id 'kotlin-kapt'
 }
 
 android {
@@ -29,6 +32,7 @@ android {
     }
     kotlinOptions {
         jvmTarget = '17'
+        freeCompilerArgs = ['-XXLanguage:+PropertyParamAnnotationDefaultTargetMode']
     }
     buildFeatures {
         viewBinding true
@@ -50,6 +54,14 @@ dependencies {
     implementation libs.bundles.network
     implementation libs.androidx.datastore
     implementation libs.androidx.datastore.preferences
+    implementation libs.kotlin.serialization.json
+
+    implementation "com.google.dagger:dagger-android:2.50"
+    implementation "com.google.dagger:dagger-android-support:2.50"
+    kapt "com.google.dagger:dagger-android-processor:2.50"
+
+    implementation 'com.google.dagger:dagger:2.50'
+    kapt 'com.google.dagger:dagger-compiler:2.50'
 
     testImplementation libs.junit
     androidTestImplementation libs.androidx.test.ext.junit

app/src/main/AndroidManifest.xml

@@ -4,13 +4,14 @@
     >
 
     <application
+        android:name=".App"
         android:allowBackup="true"
         android:icon="@mipmap/ic_launcher"
         android:label="@string/app_name"
         android:roundIcon="@mipmap/ic_launcher_round"
         android:supportsRtl="true"
         android:theme="@style/Theme.CustomView">
-        <activity android:name=".MainActivity"
+        <activity android:name=".presentation.MainActivity"
             android:exported="true">
             <intent-filter>
                 <action android:name="android.intent.action.MAIN" />

app/src/main/assets/payload.json

@@ -0,0 +1,88 @@
+{
+  "items": [
+    {
+    "id": 1,
+    "name": "Азбука Вкуса",
+    "amount": 1580,
+    "category": "Продукты",
+    "time": 1623318531
+  },
+    {
+      "id": 2,
+      "name": "Ригла",
+      "amount": 499,
+      "category": "Здоровье",
+      "time": 1623322251
+    },
+    {
+      "id": 3,
+      "name": "Пятерочка",
+      "amount": 129,
+      "category": "Продукты",
+      "time": 1623322371
+    },
+    {
+      "id": 4,
+      "name": "Truffo",
+      "amount": 4541,
+      "category": "Кафе и рестораны",
+      "time": 1623326031
+    },
+    {
+      "id": 5,
+      "name": "Simple Wine",
+      "amount": 1600,
+      "category": "Алкоголь",
+      "time": 1623329631
+    },
+    {
+      "id": 6,
+      "name": "Азбука Вкуса Экспресс",
+      "amount": 1841,
+      "category": "Доставка еды",
+      "time": 1623322371
+    },
+    {
+      "id": 7,
+      "name": "Uber",
+      "amount": 369,
+      "category": "Транспорт",
+      "time": 1623416031
+    },
+    {
+      "id": 8,
+      "name": "Метро",
+      "amount": 100,
+      "category": "Транспорт",
+      "time": 1623416211
+    },
+    {
+      "id": 9,
+      "name": "Стоматология",
+      "amount": 8000,
+      "category": "Здоровье",
+      "time": 1623419811
+    },
+    {
+      "id": 10,
+      "name": "Пятерочка",
+      "amount": 809,
+      "category": "Продукты",
+      "time": 1623419934
+    },
+    {
+      "id": 11,
+      "name": "Бассейн",
+      "amount": 1000,
+      "category": "Спорт",
+      "time": 1623419934
+    },
+    {
+      "id": 12,
+      "name": "Uber",
+      "amount": 389,
+      "category": "Транспорт",
+      "time": 1623419934
+    }
+  ]
+}

app/src/main/java/otus/homework/customview/App.kt

@@ -0,0 +1,17 @@
+package otus.homework.customview
+
+import android.app.Application
+import otus.homework.customview.di.AppComponent
+import otus.homework.customview.di.DaggerAppComponent
+
+class App: Application() {
+    lateinit var appComponent: AppComponent
+
+    override fun onCreate() {
+        super.onCreate()
+
+        appComponent = DaggerAppComponent.factory().newAppComponent(baseContext)
+    }
+}
+
+fun Application.getComponent() = (this as App).appComponent

app/src/main/java/otus/homework/customview/data/UiDataFakeRepoImpl.kt

@@ -0,0 +1,19 @@
+package otus.homework.customview.data
+
+import otus.homework.customview.presentation.PieChartUiInfo
+import javax.inject.Inject
+
+class UiDataFakeRepoImpl @Inject constructor(
+    private val jsonParser: UiDataJsonParser,
+    private val mapper: UiDataMapper
+) : UiDataRepo {
+    companion object {
+        private const val FILE_NAME = "payload.json"
+    }
+
+    override fun getUiData(): PieChartUiInfo = mapper.map(
+        data = jsonParser.parseFromAssets(
+            FILE_NAME
+        )
+    )
+}

app/src/main/java/otus/homework/customview/data/UiDataJsonParser.kt

@@ -0,0 +1,20 @@
+package otus.homework.customview.data
+
+import android.content.Context
+import kotlinx.serialization.json.Json
+import otus.homework.customview.models.PieChartData
+import javax.inject.Inject
+
+class UiDataJsonParser @Inject constructor(private val context: Context, private val json: Json) {
+
+    fun parseFromAssets(fileName: String): PieChartData {
+
+        val jsonString = context
+            .assets
+            .open(fileName)
+            .bufferedReader()
+            .use { it.readText() }
+
+        return json.decodeFromString<PieChartData>(jsonString)
+    }
+}

app/src/main/java/otus/homework/customview/data/UiDataMapper.kt

@@ -0,0 +1,43 @@
+package otus.homework.customview.data
+
+import android.graphics.Color
+import otus.homework.customview.models.PieChartData
+import otus.homework.customview.presentation.PieChartSpendingItem
+import otus.homework.customview.presentation.PieChartUiInfo
+import javax.inject.Inject
+
+class UiDataMapper @Inject constructor() {
+    val colorsMap = mutableMapOf(
+        "Алкоголь" to Color.BLACK,
+        "Продукты" to Color.RED,
+        "Здоровье" to Color.BLUE,
+        "Кафе и рестораны" to Color.YELLOW,
+        "Доставка еды" to Color.GREEN,
+        "Транспорт" to Color.CYAN,
+        "Спорт" to Color.MAGENTA
+    )
+
+    fun map(data: PieChartData): PieChartUiInfo {
+        var allSum = 0
+        val generalCategorySumMap = mutableMapOf<String, Int>()
+
+        data.items.forEach { item ->
+            allSum += item.amount
+            var currentSum = generalCategorySumMap.getOrDefault(item.category, 0)
+            currentSum += item.amount
+            generalCategorySumMap.put(item.category, currentSum)
+        }
+
+        val uiItems = generalCategorySumMap.map { entry ->
+            PieChartSpendingItem(
+                color = colorsMap.getOrDefault(entry.key, Color.TRANSPARENT),
+                amount = generalCategorySumMap.getOrDefault(entry.key, 0),
+                total = allSum,
+                category = entry.key
+            )
+        }
+        return PieChartUiInfo(
+            spendingInfo = uiItems
+        )
+    }
+}

app/src/main/java/otus/homework/customview/data/UiDataRepo.kt

@@ -0,0 +1,7 @@
+package otus.homework.customview.data
+
+import otus.homework.customview.presentation.PieChartUiInfo
+
+interface UiDataRepo{
+    fun getUiData(): PieChartUiInfo
+}

app/src/main/java/otus/homework/customview/di/AppComponent.kt

@@ -0,0 +1,17 @@
+package otus.homework.customview.di
+
+import android.content.Context
+import dagger.BindsInstance
+import dagger.Component
+import otus.homework.customview.presentation.MainActivity
+
+@Component(modules = [AppModule::class])
+interface AppComponent {
+
+    fun inject(activity: MainActivity)
+
+    @Component.Factory
+    interface Factory{
+        fun newAppComponent(@BindsInstance context: Context): AppComponent
+    }
+}

app/src/main/java/otus/homework/customview/di/AppModule.kt

@@ -0,0 +1,22 @@
+package otus.homework.customview.di
+
+import dagger.Binds
+import dagger.Module
+import dagger.Provides
+import kotlinx.serialization.json.Json
+import otus.homework.customview.data.UiDataFakeRepoImpl
+import otus.homework.customview.data.UiDataRepo
+
+@Module
+interface AppModule {
+
+    @Binds
+    fun bindFakeRepo(repo: UiDataFakeRepoImpl): UiDataRepo
+
+companion object{
+
+    @Provides
+    fun providesJson(): Json = Json { ignoreUnknownKeys = true}
+
+}
+}

app/src/main/java/otus/homework/customview/models/PieChartData.kt

@@ -0,0 +1,22 @@
+package otus.homework.customview.models
+
+import com.google.gson.annotations.SerializedName
+import kotlinx.serialization.Serializable
+
+@Serializable
+data class PieChartData(
+    val items: List<Item>
+){
+    @Serializable
+    data class Item(
+    @field:SerializedName("id")
+    val id: Int,
+    @field:SerializedName("amount")
+    val amount: Int,
+    @field:SerializedName("category")
+    val category: String,
+    @field:SerializedName("time")
+    val time: Long,
+    )
+}
+

app/src/main/java/otus/homework/customview/presentation/MainActivity.kt

@@ -0,0 +1,39 @@
+package otus.homework.customview.presentation
+
+import androidx.appcompat.app.AppCompatActivity
+import android.os.Bundle
+import com.google.android.material.snackbar.Snackbar
+import otus.homework.customview.data.UiDataRepo
+import otus.homework.customview.databinding.ActivityMainBinding
+import otus.homework.customview.getComponent
+import javax.inject.Inject
+
+class MainActivity : AppCompatActivity() {
+    private lateinit var binding: ActivityMainBinding
+
+    @Inject
+    lateinit var repo: UiDataRepo
+
+    override fun onCreate(savedInstanceState: Bundle?) {
+        super.onCreate(savedInstanceState)
+
+        application.getComponent().inject(this)
+
+        binding = ActivityMainBinding.inflate(layoutInflater)
+        setContentView(binding.root)
+
+        binding.root.post {
+            binding.pieChart.setSegments(repo.getUiData())
+            binding.pieChart.setOnClickEvent { text ->
+
+                Snackbar.make(
+                    this,
+                    binding.root,
+                    text,
+                    1500
+                ).show()
+
+            }
+        }
+    }
+}