pragma Singleton
import QtQuick
import Quickshell
import Quickshell.Services.UPower

Item {
    id: root
    property bool available: UPower.displayDevice.isPresent
    property real percentage: UPower.displayDevice.percentage*100
    property string state: UPowerDeviceState.toString(UPower.displayDevice.state)
    property bool charging: state == "Charging"
    property bool full: state == "FullyCharged"
    property real energy: UPower.displayDevice.energy
    property real energy_formated: Math.round(energy*10)/10
    property real time_to_empty: UPower.displayDevice.timeToEmpty
    property real hour_to_empty: Math.floor(time_to_empty/3600)
    property real min_to_empty: Math.floor((time_to_empty%3600)/60)
    property real energy_rate: UPower.displayDevice.changeRate
    property real energy_rate_formated: Math.round(energy_rate*10)/10
    property bool healthSupported: UPower.displayDevice.healthSupported
    property real health: healthSupported ? UPower.displayDevice.healthPercentage : NaN

    property int _maxHistory: 60*60

    property var percentageHistory: [{time: Date.now() - _maxHistory*1000, value: 0}, {time: Date.now(), value: 0}]
    property var percentageHistoryExists: true
    property var energyHistory: [{time: Date.now() - _maxHistory*1000, value: 0}, {time: Date.now(), value: 0}]
    property var energyHistoryExists: true
    property var usageHistory: [{time: Date.now() - _maxHistory*1000, value: 0}, {time: Date.now(), value: 0}]
    property var usageHistoryExists: true

    Timer {
        id: statsTimer
        interval: 1000
        repeat: true
        running: true
        onTriggered: {
            var now = Date.now()

            // Creating percentage History
            var pHist = root.percentageHistory
            pHist.push({time: now, value: percentage})
            if (pHist.length > root._maxHistory) pHist.shift()
            percentageHistoryExists = pHist.some(item => item.value !== 0 && item.value !== undefined)
            root.percentageHistory = pHist

            // Creating percentage History
            var eHist = root.energyHistory
            eHist.push({time: now, value: energy_formated})
            if (eHist.length > root._maxHistory) eHist.shift()
            energyHistoryExists = eHist.some(item => item.value !== 0 && item.value !== undefined)
            root.energyHistory = eHist

            // Creating percentage History
            var uHist = root.usageHistory
            uHist.push({time: now, value: energy_rate_formated})
            if (uHist.length > root._maxHistory) uHist.shift()
            usageHistoryExists = uHist.some(item => item.value !== 0 && item.value !== undefined)
            root.usageHistory = uHist
        }
    }
}