package com.eacenic.weighttrack

import android.os.Build
import android.util.Log
import androidx.annotation.RequiresApi
import androidx.lifecycle.ViewModel
import kotlinx.coroutines.flow.MutableStateFlow
import kotlinx.coroutines.flow.StateFlow
import java.time.LocalDateTime

const val TAG = "WeightTrackViewModel"
class WeightTrackViewModel: ViewModel() {

    @RequiresApi(Build.VERSION_CODES.O)
    private var _historyData = MutableStateFlow<List<WeightRecord>>(mutableListOf<WeightRecord>(
        WeightRecord(62.6f, LocalDateTime.now()),
        WeightRecord(63.6f, LocalDateTime.now()),
        WeightRecord(65.6f, LocalDateTime.now())
    ))

    @RequiresApi(Build.VERSION_CODES.O)
    val historyData: StateFlow<List<WeightRecord>> = _historyData

    @RequiresApi(Build.VERSION_CODES.O)
    fun addWeightRecord(newRecord: WeightRecord) {
        val newRecords = _historyData.value.toMutableList()
        newRecords.add(newRecord)
        _historyData.value = newRecords
        Log.e(TAG, "$newRecord")
        Log.e(TAG, "${_historyData.value}")
    }
}