Working on updating information on scroll

1Weather.xcworkspace/xcuserdata/dstepanets.xcuserdatad/xcdebugger/Breakpoints_v2.xcbkptlist

@@ -3,4 +3,22 @@
    uuid = "55281C35-FE9F-4CED-865E-FBED0E7393F6"
    type = "0"
    version = "2.0">
+   <Breakpoints>
+      <BreakpointProxy
+         BreakpointExtensionID = "Xcode.Breakpoint.FileBreakpoint">
+         <BreakpointContent
+            uuid = "451CF0CC-97B9-44A7-9228-3653F9EC81B0"
+            shouldBeEnabled = "Yes"
+            ignoreCount = "0"
+            continueAfterRunningActions = "No"
+            filePath = "1Weather/UI/SharedViews/MinutelyForecastView/MinutelyForecastView.swift"
+            startingColumnNumber = "9223372036854775807"
+            endingColumnNumber = "9223372036854775807"
+            startingLineNumber = "250"
+            endingLineNumber = "250"
+            landmarkName = "scrollViewDidScroll(_:)"
+            landmarkType = "7">
+         </BreakpointContent>
+      </BreakpointProxy>
+   </Breakpoints>
 </Bucket>

1Weather/UI/SharedViews/MinutelyForecastView/MinutelyForecastView.swift

@@ -50,11 +50,13 @@ private class MinutelyLevelView: UIView {
 
 class MinutelyForecastView: UIView {
     //Private
+    private let kLevelWidth = 3
     private let detailsInfoView = MinutelyForecastDetailsView()
     private let levelsStackView = UIStackView()
     private let verticalStackView = UIStackView()
     private let scrollView = UIScrollView()
     private let centerDashline = CAShapeLayer()
+    private var levelsPositionXCache = [Int : CGFloat]()
     private lazy var dateFormatter: DateFormatter = {
         let formatter = DateFormatter()
         formatter.dateFormat = "h:mm a"
@@ -89,14 +91,18 @@ class MinutelyForecastView: UIView {
     func configure(with location: Location) {
         self.location = location
         centerDashline.strokeColor = kTemperatureColors.last?.cgColor
-        self.detailsInfoView.configure(hourly: location.hourly[0],
-                                       colors: kTemperatureColors)
+        if !location.hourly.isEmpty {
+            self.detailsInfoView.configure(hourly: location.hourly[0],
+                                           colors: kTemperatureColors)
+        }
+        
         updateChart()
     }
     
     private func updateChart() {
         verticalStackView.removeAll()
         levelsStackView.removeAll()
+        levelsPositionXCache.removeAll()
         scrollView.subviews.forEach {
             if $0.isKind(of: UILabel.self) {
                 $0.removeFromSuperview()
@@ -119,10 +125,10 @@ class MinutelyForecastView: UIView {
             let midPoint = (uniqTemps.count / 2)
             
             let firstHalf = uniqTemps[..<midPoint]
-            let firstHalfTemp = firstHalf[firstHalf.startIndex + firstHalf.count % 2]
+            let firstHalfTemp = firstHalf[firstHalf.startIndex + firstHalf.count / 2]
             
             let seconHalf = uniqTemps[midPoint...]
-            let secondHalfTemp = seconHalf[seconHalf.startIndex + seconHalf.count % 2]
+            let secondHalfTemp = seconHalf[seconHalf.startIndex + seconHalf.count / 2]
             uniqTemps = [uniqMax, firstHalfTemp, secondHalfTemp, uniqMin]
         }
        
@@ -140,7 +146,7 @@ class MinutelyForecastView: UIView {
             levelsStackView.addArrangedSubview(view)
             let level = (0.05 + 0.9 * ((forecast[index].temp.value - minTemp.value) / (maxTemp.value - minTemp.value)))
             view.snp.makeConstraints { make in
-                make.width.equalTo(3)
+                make.width.equalTo(kLevelWidth)
                 make.height.equalToSuperview().multipliedBy(level)
             }
             
@@ -157,6 +163,11 @@ class MinutelyForecastView: UIView {
                 }
             }
         }
+        
+        levelsStackView.layoutIfNeeded()
+        for (index, view) in levelsStackView.arrangedSubviews.enumerated() {
+            levelsPositionXCache[index] = view.frame.origin.x
+        }
     }
 
     required init?(coder: NSCoder) {
@@ -191,6 +202,7 @@ private extension MinutelyForecastView {
     
     func prepareScrollView() {
         scrollView.backgroundColor = .clear
+        scrollView.delegate = self
         addSubview(scrollView)
         
         levelsStackView.axis = .horizontal
@@ -218,3 +230,23 @@ private extension MinutelyForecastView {
         layer.addSublayer(centerDashline)
     }
 }
+
+//MARK:- UIScrollView Delegate
+extension MinutelyForecastView: UIScrollViewDelegate {
+    func scrollViewDidScroll(_ scrollView: UIScrollView) {
+        let targetPointX = Double(scrollView.contentInset.left + scrollView.contentOffset.x)
+        
+        guard let cachedValue = (levelsPositionXCache.first {
+            return $1...$1 + Double(kLevelWidth) ~= targetPointX
+        })
+        else {
+            return
+        }
+        
+        if 0..<cachedValue.key ~= location?.minutely?.forecast.count ?? 0 {
+            let forecast = location?.minutely?.forecast[cachedValue.key]
+            detailsInfoView.configure(hourly: forecast, colors: <#T##[UIColor]#>)
+        }
+        print("[min] Target current index \(cachedValue.key)")
+    }
+}

CoreDataStorage/CoreDataStorage/Objects/Human/CoreLocation.swift

@@ -2,6 +2,7 @@ import Foundation
 import CoreData
 import OneWeatherCore
 import OneWeatherAnalytics
+import CoreLocation
 
 @objc(CoreLocation)
 open class CoreLocation: _CoreLocation, CoreDataAppModelConvertable {