update

app/src/main/java/ru/fincode/tsudesk/MainActivity.kt

@@ -23,7 +23,7 @@ class MainActivity : ComponentActivity() {
                 val result = getScheduleUseCase(
                     ScheduleType.Group("220631")
                 )
-                Log.d("TSUDesk", result.isSuccess.toString())
+                Log.d("TSUDesk", result.toString())
             } catch (e: Exception) {
                 Log.e("TSUDesk", "Error loading schedule", e)
             }

core/network/build.gradle.kts

@@ -48,6 +48,4 @@ dependencies {
     api(libs.moshi)
     api(libs.moshiKotlin)
     api(libs.retrofitMoshi)
-
-    api(libs.retrofit.simplexml)
 }

core/network/src/main/java/ru/fincode/tsudesk/core/network/NetworkCall.kt

@@ -1,4 +1,24 @@
 package ru.fincode.tsudesk.core.network
 
-class NetworkCall {
-}
+import retrofit2.HttpException
+import ru.fincode.tsudesk.core.network.model.NetworkError
+import ru.fincode.tsudesk.core.network.model.NetworkResult
+import java.io.IOException
+import java.net.SocketTimeoutException
+
+suspend inline fun <T> safeApiCall(
+    crossinline block: suspend () -> T
+): NetworkResult<T> {
+    return try {
+        NetworkResult.Success(block())
+    } catch (t: Throwable) {
+        NetworkResult.Error(t.toNetworkError())
+    }
+}
+
+fun Throwable.toNetworkError(): NetworkError = when (this) {
+    is SocketTimeoutException -> NetworkError.Timeout
+    is IOException -> NetworkError.NoInternet
+    is HttpException -> NetworkError.Http(code())
+    else -> NetworkError.Unknown(this)
+}

core/network/src/main/java/ru/fincode/tsudesk/core/network/NetworkModule.kt

@@ -9,12 +9,13 @@ import retrofit2.Retrofit
 import java.util.concurrent.TimeUnit
 import javax.inject.Singleton
 import okhttp3.logging.HttpLoggingInterceptor
+import ru.fincode.tsudesk.core.network.interceptor.DebugInterceptor
 
 @Module
 @InstallIn(SingletonComponent::class)
 object NetworkModule {
 
-    private const val TIMEOUT_SEC = 30L
+    private const val TIMEOUT = 30L
     val logging = HttpLoggingInterceptor().apply {
         level = HttpLoggingInterceptor.Level.BODY
     }
@@ -23,9 +24,9 @@ object NetworkModule {
     @Singleton
     fun provideOkHttpClient(): OkHttpClient =
         OkHttpClient.Builder()
-            .connectTimeout(TIMEOUT_SEC, TimeUnit.SECONDS)
-            .readTimeout(TIMEOUT_SEC, TimeUnit.SECONDS)
-            .writeTimeout(TIMEOUT_SEC, TimeUnit.SECONDS)
+            .connectTimeout(TIMEOUT, TimeUnit.SECONDS)
+            .readTimeout(TIMEOUT, TimeUnit.SECONDS)
+            .writeTimeout(TIMEOUT, TimeUnit.SECONDS)
             .retryOnConnectionFailure(true)
             .addInterceptor(DebugInterceptor())
             .build()

core/network/src/main/java/ru/fincode/tsudesk/core/network/interceptor/DebugInterceptor.kt

@@ -1,2 +1,20 @@
-package ru.fincode.tsudesk.core.network.interceptor 
+package ru.fincode.tsudesk.core.network.interceptor
 
+import android.util.Log
+import okhttp3.Interceptor
+import okhttp3.Response
+
+private const val TAG = "NETWORK_DEBUG"
+
+class DebugInterceptor : Interceptor {
+
+    override fun intercept(chain: Interceptor.Chain): Response {
+        val request = chain.request()
+
+        Log.d(TAG, "URL: ${request.url}")
+        Log.d(TAG, "Method: ${request.method}")
+        Log.d(TAG, "Headers: ${request.headers}")
+
+        return chain.proceed(request)
+    }
+}

core/network/src/main/java/ru/fincode/tsudesk/core/network/model/NetworkError.kt

@@ -1,2 +1,8 @@
-package ru.fincode.tsudesk.core.network.model 
+package ru.fincode.tsudesk.core.network.model
 
+sealed class NetworkError {
+    object NoInternet : NetworkError()
+    object Timeout : NetworkError()
+    data class Http(val code: Int) : NetworkError()
+    data class Unknown(val throwable: Throwable) : NetworkError()
+}

core/network/src/main/java/ru/fincode/tsudesk/core/network/model/NetworkResult.kt

@@ -1,2 +1,6 @@
-package ru.fincode.tsudesk.core.network.model 
+package ru.fincode.tsudesk.core.network.model
 
+sealed class NetworkResult<out T> {
+    data class Success<T>(val data: T) : NetworkResult<T>()
+    data class Error(val error: NetworkError) : NetworkResult<Nothing>()
+}

core/network/src/main/java/ru/fincode/tsudesk/core/network/model/NetworkResultExt.kt

@@ -1,4 +1,8 @@
 package ru.fincode.tsudesk.core.network.model
 
-class NetworkResultExt {
-}
+inline fun <T, R> NetworkResult<T>.map(
+    transform: (T) -> R
+): NetworkResult<R> = when (this) {
+    is NetworkResult.Success -> NetworkResult.Success(transform(data))
+    is NetworkResult.Error -> this
+}

feature/schedule/src/main/java/ru/fincode/tsudesk/feature/schedule/data/ScheduleRepositoryImpl.kt

@@ -1,5 +1,7 @@
 package ru.fincode.tsudesk.feature.schedule.data
 
+import ru.fincode.tsudesk.core.network.model.NetworkResult
+import ru.fincode.tsudesk.core.network.model.map
 import ru.fincode.tsudesk.feature.schedule.data.datasource.ScheduleRemoteDataSource
 import ru.fincode.tsudesk.feature.schedule.data.mapper.ScheduleDtoToDomainMapper
 import ru.fincode.tsudesk.feature.schedule.domain.model.ScheduleEntity
@@ -7,14 +9,15 @@ import ru.fincode.tsudesk.feature.schedule.domain.repository.ScheduleRepository
 import javax.inject.Inject
 
 class ScheduleRepositoryImpl @Inject constructor(
-    private val remote: ScheduleRemoteDataSource, private val mapper: ScheduleDtoToDomainMapper
+    private val remote: ScheduleRemoteDataSource,
+    private val mapper: ScheduleDtoToDomainMapper
 ) : ScheduleRepository {
 
-    override suspend fun loadScheduleByGroup(
-        groupNumber: String
-    ): Result<ScheduleEntity> = remote.loadScheduleByGroup(groupNumber).map(mapper::invoke)
+    override suspend fun loadScheduleByGroup(number: String): NetworkResult<ScheduleEntity> =
+        remote.loadScheduleByGroup(number).map(mapper::invoke)
+
+    override suspend fun loadScheduleByTeacher(name: String): NetworkResult<ScheduleEntity> =
+        remote.loadScheduleByTeacher(name).map(mapper::invoke)
 
-    override suspend fun loadScheduleByTeacher(
-        name: String
-    ): Result<ScheduleEntity> = remote.loadScheduleByTeacher(name).map(mapper::invoke)
 }
+

feature/schedule/src/main/java/ru/fincode/tsudesk/feature/schedule/data/datasource/ScheduleRemoteDataSource.kt

@@ -1,5 +1,7 @@
 package ru.fincode.tsudesk.feature.schedule.data.datasource
 
+import ru.fincode.tsudesk.core.network.model.NetworkResult
+import ru.fincode.tsudesk.core.network.safeApiCall
 import ru.fincode.tsudesk.feature.schedule.data.remote.ScheduleApi
 import ru.fincode.tsudesk.feature.schedule.data.remote.model.LessonDto.ScheduleSearchField.GROUP_P
 import ru.fincode.tsudesk.feature.schedule.data.remote.model.LessonDto.ScheduleSearchField.PREP
@@ -9,9 +11,9 @@ import javax.inject.Inject
 class ScheduleRemoteDataSource @Inject constructor(
     private val api: ScheduleApi
 ) {
-    suspend fun loadScheduleByGroup(groupNumber: String): Result<ScheduleDto> =
-        runCatching { api.getSchedule(GROUP_P, groupNumber) }
+    suspend fun loadScheduleByGroup(number: String): NetworkResult<ScheduleDto> =
+        safeApiCall { api.getSchedule(GROUP_P, number) }
 
-    suspend fun loadScheduleByTeacher(name: String): Result<ScheduleDto> =
-        runCatching { api.getSchedule(PREP, name) }
+    suspend fun loadScheduleByTeacher(name: String): NetworkResult<ScheduleDto> =
+        safeApiCall { api.getSchedule(PREP, name) }
 }

feature/schedule/src/main/java/ru/fincode/tsudesk/feature/schedule/data/datasource/ScheduleRemoteDataSourceImpl.kt

@@ -1,5 +1,7 @@
 package ru.fincode.tsudesk.feature.schedule.data.datasource
 
+import ru.fincode.tsudesk.core.network.model.NetworkResult
+import ru.fincode.tsudesk.core.network.model.map
 import ru.fincode.tsudesk.feature.schedule.data.mapper.ScheduleDtoToDomainMapper
 import ru.fincode.tsudesk.feature.schedule.domain.model.ScheduleEntity
 import ru.fincode.tsudesk.feature.schedule.domain.repository.ScheduleRepository
@@ -10,13 +12,10 @@ class ScheduleRemoteDataSourceImpl @Inject constructor(
     private val mapper: ScheduleDtoToDomainMapper
 ) : ScheduleRepository {
 
-    override suspend fun loadScheduleByGroup(groupNumber: String): Result<ScheduleEntity> =
-        remote
-            .loadScheduleByGroup(groupNumber)             // Result<ScheduleDto>
-            .map(mapper::invoke)              // Result<ScheduleEntity>
+    override suspend fun loadScheduleByGroup(number: String): NetworkResult<ScheduleEntity> =
+        remote.loadScheduleByGroup(number).map(mapper::invoke)
+
+    override suspend fun loadScheduleByTeacher(name: String): NetworkResult<ScheduleEntity> =
+        remote.loadScheduleByTeacher(name).map(mapper::invoke)
 
-    override suspend fun loadScheduleByTeacher(name: String): Result<ScheduleEntity> =
-        remote
-            .loadScheduleByTeacher(name)             // Result<ScheduleDto>
-            .map(mapper::invoke)                // Result<ScheduleEntity>
 }

feature/schedule/src/main/java/ru/fincode/tsudesk/feature/schedule/domain/repository/ScheduleRepository.kt

@@ -1,8 +1,9 @@
 package ru.fincode.tsudesk.feature.schedule.domain.repository
 
+import ru.fincode.tsudesk.core.network.model.NetworkResult
 import ru.fincode.tsudesk.feature.schedule.domain.model.ScheduleEntity
 
 interface ScheduleRepository {
-    suspend fun loadScheduleByGroup(groupNumber: String): Result<ScheduleEntity>
-    suspend fun loadScheduleByTeacher(name: String): Result<ScheduleEntity>
+    suspend fun loadScheduleByGroup(number: String): NetworkResult<ScheduleEntity>
+    suspend fun loadScheduleByTeacher(name: String): NetworkResult<ScheduleEntity>
 }

feature/schedule/src/main/java/ru/fincode/tsudesk/feature/schedule/domain/usecase/GetScheduleUseCase.kt

@@ -1,5 +1,6 @@
 package ru.fincode.tsudesk.feature.schedule.domain.usecase
 
+import ru.fincode.tsudesk.core.network.model.NetworkResult
 import ru.fincode.tsudesk.feature.schedule.domain.model.ScheduleEntity
 import ru.fincode.tsudesk.feature.schedule.domain.repository.ScheduleRepository
 import javax.inject.Inject
@@ -8,13 +9,13 @@ class GetScheduleUseCase @Inject constructor(
     private val repository: ScheduleRepository
 ) {
     sealed interface ScheduleType {
-        data class Group(val groupNumber: String) : ScheduleType
-        data class Teacher(val teacherName: String) : ScheduleType
+        data class Group(val number: String) : ScheduleType
+        data class Teacher(val name: String) : ScheduleType
     }
 
-    suspend operator fun invoke(type: ScheduleType): Result<ScheduleEntity> =
+    suspend operator fun invoke(type: ScheduleType): NetworkResult<ScheduleEntity> =
         when (type) {
-            is ScheduleType.Group -> repository.loadScheduleByGroup(type.groupNumber)
-            is ScheduleType.Teacher -> repository.loadScheduleByTeacher(type.teacherName)
+            is ScheduleType.Group -> repository.loadScheduleByGroup(type.number)
+            is ScheduleType.Teacher -> repository.loadScheduleByTeacher(type.name)
         }
 }