//
//  TableViewController.swift
//  VDSSample
//
//  Created by Nadigadda, Sumanth on 24/04/24.
//

import Foundation
import VDS
import UIKit
import VDSCoreTokens

enum TableLineStyle: String, CaseIterable {
    case none
    case primary
    case secondary
    
    func lineStyle() -> Line.Style? {
        switch self {
        case .primary:
            return Line.Style.primary
        case .secondary:
            return Line.Style.secondary
        case .none:
            return nil
        }
    }
}

class TableViewController: BaseViewController<Table> {

    var striped = Toggle()
    
    var fillContainer = Toggle()
    
    var customColumnWidthSize = NumericField().with {
        $0.placeholder = "Minimum 50px"
    }
    
    lazy var headerLineStylePicker = {
        PickerSelectorView(title: "primary", picker: self.picker, items: TableLineStyle.allCases)
    }()
    
    lazy var rowLineStylePicker = {
        PickerSelectorView(title: "secondary", picker: self.picker, items: TableLineStyle.allCases)
    }()
    
    lazy var paddingPicker = {
        PickerSelectorView(title: "standard", picker: self.picker, items: Table.Padding.allCases)
    }()
    
    override func viewDidLoad() {
        super.viewDidLoad()
        self.setupPicker()
        self.setupModel()
    }
    
    override func setupForm() {
        super.setupForm()
        addFormRow(label: "Surface", view: surfacePickerSelectorView)
        addFormRow(label: "Padding", view: paddingPicker)
        addFormRow(label: "Striped", view: striped)
        addFormRow(label: "Header line style", view: headerLineStylePicker)
        addFormRow(label: "Row line style", view: rowLineStylePicker)
        addFormRow(label: "Fill container", view: fillContainer)
        addFormRow(label: "Custom column size", view: customColumnWidthSize)
        
        fillContainer.isOn = component.fillContainer
        updateTextFieldStatus(enable: !fillContainer.isOn)
        
        addContentTopView(view: component)
        
        striped.onChange = { [weak self] sender in
            self?.component.striped = sender.isOn
            
            let headerStyle = sender.isOn ? nil : TableLineStyle(rawValue: self?.headerLineStylePicker.text ?? "")
            let rowStyle = sender.isOn ? nil : TableLineStyle(rawValue: self?.rowLineStylePicker.text ?? "")
            
            var headers = self?.component.tableHeader ?? [TableRowModel]()
            self?.updateBottomLineStyle(items:&headers, style: headerStyle?.lineStyle())
            self?.component.tableHeader = headers
            
            var rows = self?.component.tableRows ?? [TableRowModel]()
            self?.updateBottomLineStyle(items:&rows, style: rowStyle?.lineStyle())
            self?.component.tableRows = rows
        }
        
        fillContainer.onChange = { [weak self] sender in
            self?.component.fillContainer = sender.isOn
            self?.updateTextFieldStatus(enable:!sender.isOn)
            if let count = self?.component.tableHeader.first?.columnsCount,
               let text = self?.customColumnWidthSize.text,
               let width = NumberFormatter().number(from: text) {
                self?.component.columnWidths = Array(repeating: CGFloat(truncating: width), count: count)
            }
        }
                
        customColumnWidthSize.numberPublisher.sink { [weak self]  text in
            if let count = self?.component.tableHeader.first?.columnsCount, let text, text.intValue > 50 {
                self?.component.columnWidths = Array(repeating: CGFloat(truncating: text), count: count)
            }
        }.store(in: &subscribers)
    }
    
    func setupPicker() {
        surfacePickerSelectorView.onPickerDidSelect = { [weak self] item in
            self?.component.surface = item
            self?.contentTopView.backgroundColor = item.color
        }
        
        headerLineStylePicker.onPickerDidSelect = { [weak self] item in
            var headers = self?.component.tableHeader ?? [TableRowModel]()
            self?.updateBottomLineStyle(items:&headers, style: item.lineStyle())
            self?.component.tableHeader = headers
        }
        
        rowLineStylePicker.onPickerDidSelect = { [weak self] item in
            
            var rows = self?.component.tableRows ?? [TableRowModel]()
            self?.updateBottomLineStyle(items:&rows, style: item.lineStyle())
            self?.component.tableRows = rows
        }
        
        paddingPicker.onPickerDidSelect = { [weak self] item in
            self?.component.padding = item
        }
    }
    
    func updateTextFieldStatus(enable: Bool) {
        customColumnWidthSize.isEnabled = enable
        customColumnWidthSize.backgroundColor = enable ? UIColor.white : VDSColor.paletteGray85
    }
    
    func updateBottomLineStyle(items:inout [TableRowModel], style: Line.Style?) {
        for currentRowIndex in 0..<items.count {
            var currentRow = items[currentRowIndex]
            for currentRowItem in 0..<currentRow.columnsCount {
                currentRow.columns[currentRowItem].bottomLine = style
            }
            items[currentRowIndex] = currentRow
        }
    }
    
    func setupModel() {
        ///Header row
        
        self.component.tableHeader = [TableRowModel(columns: [TableItemModel(bottomLine: .primary, component: nil),
                                                              TableItemModel(bottomLine: .primary, component: Label().with { $0.text = "Verizon smart family"; $0.textStyle = .boldTitleSmall; $0.lineBreakMode = .byWordWrapping}),
                                                              TableItemModel(bottomLine: .primary, component: Label().with { $0.text = "Call filter"; $0.textStyle = .boldTitleSmall; $0.lineBreakMode = .byWordWrapping })], isHeader: true)]
        
        ///First row
        var rows = [TableRowModel(columns: [TableItemModel(bottomLine: .secondary, component: Label().with { $0.text = "Cost"; $0.textStyle = UIDevice.isIPad ? .bodyLarge : .bodySmall; $0.lineBreakMode = .byWordWrapping}),
                     TableItemModel(bottomLine: .secondary, component: Label().with { $0.text = "$5/month for up to 10 lines"; $0.textStyle = UIDevice.isIPad ? .bodyLarge : .bodySmall; $0.lineBreakMode = .byWordWrapping}),
                    TableItemModel(bottomLine: .secondary, component: Label().with { $0.text = "$2.99/month per device"; $0.textStyle = UIDevice.isIPad ? .bodyLarge : .bodySmall; $0.lineBreakMode = .byWordWrapping})])]
        ///second row
        rows.append(TableRowModel(columns: [TableItemModel(bottomLine: .secondary, component: Label().with { $0.text = "Block web domains"; $0.textStyle = UIDevice.isIPad ? .bodyLarge : .bodySmall; $0.lineBreakMode = .byWordWrapping}),
                     TableItemModel(bottomLine: .secondary, component: Icon().with { $0.name = Icon.Name.checkmark }),
                     TableItemModel(bottomLine: .secondary, component: Icon().with { $0.name = Icon.Name.checkmark })]))
        
        ///Third row
        rows.append(TableRowModel(columns: [TableItemModel(bottomLine: .secondary, component: Label().with { $0.text = "Block calls and messages from specific numbers"; $0.textStyle = UIDevice.isIPad ? .bodyLarge : .bodySmall; $0.lineBreakMode = .byWordWrapping}),
                     TableItemModel(bottomLine: .secondary, component: Label().with { $0.text = "Permanently"; $0.textStyle = UIDevice.isIPad ? .bodyLarge : .bodySmall; $0.lineBreakMode = .byWordWrapping}),
                    TableItemModel(bottomLine: .secondary, component: Label().with { $0.text = "Permanently"; $0.textStyle = UIDevice.isIPad ? .bodyLarge : .bodySmall; $0.lineBreakMode = .byWordWrapping})]))
        
        if UIDevice.isIPad {
            
            ///Fourth row
            let titleLockUp = TitleLockup()
            let eyebrowModel = TitleLockup.EyebrowModel(text: "Today only.")
            let titleModel = TitleLockup.TitleModel(text: "Get more of our best")
            let subTitleModel = TitleLockup.SubTitleModel(text: "Get both of our best and pay less. Pair 5G Home Internet with Verizon mobile to save every month.")
            
            titleLockUp.eyebrowModel = eyebrowModel
            titleLockUp.titleModel = titleModel
            titleLockUp.subTitleModel = subTitleModel
            
            let button = Button()
            button.text = "Testing"
            
            rows.append(TableRowModel(columns: [TableItemModel(bottomLine: .secondary, component:Toggle()),
                         TableItemModel(bottomLine: .secondary, component:titleLockUp),
                        TableItemModel(bottomLine: .secondary, component: button)]))
            
            
            ///Fifth row
            let tilelet = Tilelet()
            let ftitleModel = Tilelet.TitleModel(text: "Save $XX on your monthly bill.")
            let fsubTitleModel = Tilelet.SubTitleModel(text: "Enroll in Auto Pay & paper-free billing to save on your monthly bill.")
            tilelet.titleModel = ftitleModel
            tilelet.subTitleModel = fsubTitleModel
            
            let textArea = TextArea()
            textArea.labelText = "Street Address"
            textArea.helperText = "For example: 123 Verizon St"
            textArea.errorText = "Enter a valid address."
            textArea.tooltipModel = .init(title: "Check the formatting of your address", content:"House/Building number then street name")
            
            let trailingToolTip = TrailingTooltipLabel()
            trailingToolTip.labelText = "5G Ultra Wideband is available in your area"
            trailingToolTip.tooltipModel = .init(title: "Check the formatting of your address",
                                           content:"House/Building number then street name")
            let image = UIImage(named: "clean-surface")
            let imageView = UIImageView(image: image)
            
            rows.append(TableRowModel(columns: [TableItemModel(bottomLine: .secondary, component:textArea),
                         TableItemModel(bottomLine: .secondary, component:imageView),
                         TableItemModel(bottomLine: .secondary, component:trailingToolTip)]))
        }
        
        
        component.fillContainer = true
        component.columnWidths = [400.0, 400.0, 400.0]
        
        self.component.tableRows = rows
    }
}