Coverage Summary for Class: GetGoalDetailsUseCase (com.georgeci.moneysurfer.domain.usecase)

 package com.georgeci.moneysurfer.domain.usecase
 
 import com.georgeci.moneysurfer.domain.model.GoalProgress
 import com.georgeci.moneysurfer.domain.model.SavingsGoalDetails
 import com.georgeci.moneysurfer.domain.primitives.GoalId
 import com.georgeci.moneysurfer.domain.primitives.Money
 import com.georgeci.moneysurfer.domain.repositories.GoalContributionRepository
 import com.georgeci.moneysurfer.domain.repositories.SavingsGoalRepository
 import kotlinx.coroutines.flow.Flow
 import kotlinx.coroutines.flow.combine
 import org.koin.core.annotation.Single
 
 /**
  * One goal with its progress and full contribution history. Emits `null` once the goal
  * is gone, so the details screen can close itself after a delete.
  */
 @Single
 class GetGoalDetailsUseCase(
     private val goalRepository: SavingsGoalRepository,
     private val contributionRepository: GoalContributionRepository,
 ) {
 
     operator fun invoke(goalId: GoalId): Flow<SavingsGoalDetails?> =
         combine(
             goalRepository.observeById(goalId),
             contributionRepository.getByGoalId(goalId),
         ) { goal, contributions ->
             goal ?: return@combine null
             val saved = contributions.fold(Money.zero()) { acc, row -> acc + row.amount }
             SavingsGoalDetails(
                 goal = goal,
                 progress = GoalProgress.of(goal, saved),
                 contributions = contributions,
             )
         }
 }