apk/src/com/android/healthconnect/controller/route/ExerciseRouteViewModel.kt

/*
 * Copyright (C) 2023 The Android Open Source Project
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package com.android.healthconnect.controller.route

import android.health.connect.datatypes.ExerciseSessionRecord
import android.util.Log
import androidx.lifecycle.LiveData
import androidx.lifecycle.MutableLiveData
import androidx.lifecycle.ViewModel
import androidx.lifecycle.viewModelScope
import com.android.healthconnect.controller.shared.app.AppInfoReader
import com.android.healthconnect.controller.shared.app.AppMetadata
import com.android.healthconnect.controller.shared.usecase.UseCaseResults
import dagger.hilt.android.lifecycle.HiltViewModel
import java.util.Objects
import javax.inject.Inject
import kotlinx.coroutines.launch

/** View model for reading an exercise route for the given session. */
@HiltViewModel
class ExerciseRouteViewModel
@Inject
constructor(
    private val loadExerciseRouteUseCase: LoadExerciseRouteUseCase,
    private val appInfoReader: AppInfoReader
) : ViewModel() {

    companion object {
        private const val TAG = "ExerciseRouteViewModel"
    }

    private val _exerciseSession = MutableLiveData<SessionWithAttribution?>()
    val exerciseSession: LiveData<SessionWithAttribution?>
        get() = _exerciseSession

    fun getExerciseWithRoute(sessionId: String) {
        viewModelScope.launch {
            when (val result = loadExerciseRouteUseCase.invoke(sessionId)) {
                is UseCaseResults.Success -> {
                    if (!Objects.equals(result.data, null)) {
                        val record: ExerciseSessionRecord = result.data!!
                        _exerciseSession.postValue(
                            SessionWithAttribution(
                                record,
                                appInfoReader.getAppMetadata(
                                    record.metadata.dataOrigin.packageName)))
                    } else {
                        _exerciseSession.postValue(null)
                    }
                }
                is UseCaseResults.Failed -> {
                    Log.e(TAG, result.exception.message!!)
                    _exerciseSession.postValue(null)
                }
            }
        }
    }

    data class SessionWithAttribution(val session: ExerciseSessionRecord, val appInfo: AppMetadata)
}