//
//  MainController.swift
//  AutoCat2Mac
//
//  Created by Selim Mustafaev on 15.06.2022.
//

import AppKit

enum SidebarSection: Int, CaseIterable {
    
    case source
    
    var name: String {
        switch self {
        case .source:
            return "Vehicles DB"
        }
    }
}

enum VehicleSource: Int, CaseIterable {
    
    case local
    case remote
    
    var name: String {
        switch self {
        case .local:
            return "Local history"
        case .remote:
            return "Remote DB"
        }
    }
    
    var iconName: String {
        switch self {
        case .local:
            return "internaldrive"
        case .remote:
            return "externaldrive.connected.to.line.below"
        }
    }
}

class SidebarController: NSViewController, NSOutlineViewDataSource, NSOutlineViewDelegate {
    
    override func viewDidLoad() {
        super.viewDidLoad()
    }
    
    // MARK: - NSOutlineViewDataSource
    
    func outlineView(_ outlineView: NSOutlineView, numberOfChildrenOfItem item: Any?) -> Int {
        guard item != nil else {
            return SidebarSection.allCases.count
        }
        
        if let section = item as? SidebarSection {
            return VehicleSource.allCases.count
        } else {
            return 0
        }
    }
    
    func outlineView(_ outlineView: NSOutlineView, child index: Int, ofItem item: Any?) -> Any {
        guard item != nil else {
            return SidebarSection.source
        }
        
        if let section = item as? SidebarSection {
            return VehicleSource.allCases[index]
        } else {
            return SidebarSection.source
        }
    }
    
    func outlineView(_ outlineView: NSOutlineView, isItemExpandable item: Any) -> Bool {
        return item is SidebarSection
    }
    
    // MARK: - NSOutlineViewDelegate
    
    func outlineView(_ outlineView: NSOutlineView, viewFor tableColumn: NSTableColumn?, item: Any) -> NSView? {
        
        if let category = item as? SidebarSection {
            let cell = outlineView.makeView(withIdentifier: NSUserInterfaceItemIdentifier(rawValue: "SidebarHeaderCell"), owner: nil) as? NSTableCellView
            cell?.textField?.stringValue = category.name
            return cell
        }
        
        return nil
    }
}