Modularize CustomTileProviderRepository (#3181)

core/data/src/google/kotlin/org/meshtastic/core/data/di/GoogleDataModule.kt

@@ -0,0 +1,35 @@
+/*
+ * Copyright (c) 2025 Meshtastic LLC
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+package org.meshtastic.core.data.di
+
+import dagger.Binds
+import dagger.Module
+import dagger.hilt.InstallIn
+import dagger.hilt.components.SingletonComponent
+import org.meshtastic.core.data.repository.CustomTileProviderRepository
+import org.meshtastic.core.data.repository.CustomTileProviderRepositoryImpl
+import javax.inject.Singleton
+
+@Module
+@InstallIn(SingletonComponent::class)
+interface GoogleDataModule {
+
+    @Binds
+    @Singleton
+    fun bindCustomTileProviderRepository(impl: CustomTileProviderRepositoryImpl): CustomTileProviderRepository
+}

core/data/src/google/kotlin/org/meshtastic/core/data/model/CustomTileProviderConfig.kt

@@ -0,0 +1,28 @@
+/*
+ * Copyright (c) 2025 Meshtastic LLC
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+package org.meshtastic.core.data.model
+
+import kotlinx.serialization.Serializable
+import java.util.UUID
+
+@Serializable
+data class CustomTileProviderConfig(
+    val id: String = UUID.randomUUID().toString(),
+    val name: String,
+    val urlTemplate: String,
+)

core/data/src/google/kotlin/org/meshtastic/core/data/repository/CustomTileProviderRepository.kt

@@ -0,0 +1,110 @@
+/*
+ * Copyright (c) 2025 Meshtastic LLC
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+package org.meshtastic.core.data.repository
+
+import kotlinx.coroutines.CoroutineDispatcher
+import kotlinx.coroutines.flow.Flow
+import kotlinx.coroutines.flow.MutableStateFlow
+import kotlinx.coroutines.flow.asStateFlow
+import kotlinx.coroutines.withContext
+import kotlinx.serialization.SerializationException
+import kotlinx.serialization.json.Json
+import org.meshtastic.core.data.model.CustomTileProviderConfig
+import org.meshtastic.core.di.annotation.IoDispatcher
+import org.meshtastic.core.prefs.map.MapTileProviderPrefs
+import timber.log.Timber
+import javax.inject.Inject
+import javax.inject.Singleton
+import kotlin.collections.plus
+
+interface CustomTileProviderRepository {
+    fun getCustomTileProviders(): Flow<List<CustomTileProviderConfig>>
+
+    suspend fun addCustomTileProvider(config: CustomTileProviderConfig)
+
+    suspend fun updateCustomTileProvider(config: CustomTileProviderConfig)
+
+    suspend fun deleteCustomTileProvider(configId: String)
+
+    suspend fun getCustomTileProviderById(configId: String): CustomTileProviderConfig?
+}
+
+@Singleton
+class CustomTileProviderRepositoryImpl
+@Inject
+constructor(
+    private val json: Json,
+    @IoDispatcher private val ioDispatcher: CoroutineDispatcher,
+    private val mapTileProviderPrefs: MapTileProviderPrefs,
+) : CustomTileProviderRepository {
+
+    private val customTileProvidersStateFlow = MutableStateFlow<List<CustomTileProviderConfig>>(emptyList())
+
+    init {
+        loadDataFromPrefs()
+    }
+
+    override fun getCustomTileProviders(): Flow<List<CustomTileProviderConfig>> =
+        customTileProvidersStateFlow.asStateFlow()
+
+    override suspend fun addCustomTileProvider(config: CustomTileProviderConfig) {
+        val newList = customTileProvidersStateFlow.value + config
+        customTileProvidersStateFlow.value = newList
+        saveDataToPrefs(newList)
+    }
+
+    override suspend fun updateCustomTileProvider(config: CustomTileProviderConfig) {
+        val newList = customTileProvidersStateFlow.value.map { if (it.id == config.id) config else it }
+        customTileProvidersStateFlow.value = newList
+        saveDataToPrefs(newList)
+    }
+
+    override suspend fun deleteCustomTileProvider(configId: String) {
+        val newList = customTileProvidersStateFlow.value.filterNot { it.id == configId }
+        customTileProvidersStateFlow.value = newList
+        saveDataToPrefs(newList)
+    }
+
+    override suspend fun getCustomTileProviderById(configId: String): CustomTileProviderConfig? =
+        customTileProvidersStateFlow.value.find { it.id == configId }
+
+    private fun loadDataFromPrefs() {
+        val jsonString = mapTileProviderPrefs.customTileProviders
+        if (jsonString != null) {
+            try {
+                customTileProvidersStateFlow.value = json.decodeFromString<List<CustomTileProviderConfig>>(jsonString)
+            } catch (e: SerializationException) {
+                Timber.e(e, "Error deserializing tile providers")
+                customTileProvidersStateFlow.value = emptyList()
+            }
+        } else {
+            customTileProvidersStateFlow.value = emptyList()
+        }
+    }
+
+    private suspend fun saveDataToPrefs(providers: List<CustomTileProviderConfig>) {
+        withContext(ioDispatcher) {
+            try {
+                val jsonString = json.encodeToString(providers)
+                mapTileProviderPrefs.customTileProviders = jsonString
+            } catch (e: SerializationException) {
+                Timber.e(e, "Error serializing tile providers")
+            }
+        }
+    }
+}