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KMM library with frequently used code

There is a newer version: 2.7.3

package com.makeevrserg.mobilex.paging

import com.makeevrserg.mobilex.paging.data.PagedListDataSource
import com.makeevrserg.mobilex.paging.state.PagingState
import kotlinx.coroutines.flow.MutableStateFlow
import kotlinx.coroutines.flow.update
import kotlinx.coroutines.flow.updateAndGet

class PagingCollector(
    private val initialPagingState: PagingState,
    private val pager: PagedListDataSource,
) {
    var pagingStateFlow: MutableStateFlow> = MutableStateFlow(initialPagingState)
    val listStateFlow = MutableStateFlow>(emptyList())

    /**
     * Reset will return [pagingStateFlow] to [initialPagingState] and clear [listStateFlow] content
     */
    fun reset() {
        listStateFlow.value = emptyList()
        pagingStateFlow.value = initialPagingState
    }

    suspend fun loadNextPage() {
        var currentPagingState = pagingStateFlow.value.run {
            if (isLastPage) return
            if (isLoading) return
            pagingStateFlow.updateAndGet { copyPagingState(isLoading = true) }
        }
        val nextList = pager.getList(currentPagingState)
        if (!nextList.isNullOrEmpty()) {
            currentPagingState = currentPagingState.copyPagingState(page = currentPagingState.getNextPage())
        }
        if (nextList != null && nextList.isEmpty()) {
            currentPagingState = currentPagingState.copyPagingState(isLastPage = true)
        }
        listStateFlow.update {
            it.toMutableList().apply {
                nextList?.let(::addAll)
            }
        }
        pagingStateFlow.update {
            currentPagingState.copyPagingState(isLoading = false)
        }
    }
}