Mac-utlity-app

//  SidebarView.swift

//  MUA

//

//  Created by Mitchel Volkering on 21/12/2025.

//

import SwiftUI

enum NavigationItem: String, Identifiable, CaseIterable {

    case spaceLens = "Space Lens"

    case disks = "Disks"

    case largeFiles = "Large Files"

    case cleanup = "Cleanup"

    var id: String { rawValue }

    var icon: String {

        switch self {

        case .spaceLens: return "circle.hexagongrid.fill"

        case .disks: return "internaldrive.fill"

        case .largeFiles: return "doc.badge.arrow.up.fill"

        case .cleanup: return "trash.fill"

        }

    }

    var description: String {

        switch self {

        case .spaceLens: return "Visualize disk usage"

        case .disks: return "View connected drives"

        case .largeFiles: return "Find space hogs"

        case .cleanup: return "Clean unnecessary files"

        }

    }

}

struct SidebarView: View {

    @Binding var selectedItem: NavigationItem

    let disks: [DiskInfo]

    var body: some View {

        List(selection: $selectedItem) {

            Section("Analyze") {

                ForEach([NavigationItem.spaceLens, .largeFiles]) { item in

                    NavigationLink(value: item) {

                        Label(item.rawValue, systemImage: item.icon)

                    }

                }

            }

            Section("Storage") {

                ForEach([NavigationItem.disks]) { item in

                    NavigationLink(value: item) {

                        Label(item.rawValue, systemImage: item.icon)

                    }

                }

                // Quick disk overview

                ForEach(disks) { disk in

                    DiskQuickView(disk: disk)

                }

            }

            Section("Maintain") {

                ForEach([NavigationItem.cleanup]) { item in

                    NavigationLink(value: item) {

                        Label(item.rawValue, systemImage: item.icon)

                    }

                }

            }

        }

        .listStyle(.sidebar)

        .frame(minWidth: 200)

    }

}

struct DiskQuickView: View {

    let disk: DiskInfo

    var body: some View {

        VStack(alignment: .leading, spacing: 6) {

            HStack {

                Image(systemName: disk.icon)

                    .foregroundStyle(.secondary)

                Text(disk.name)

                    .font(.subheadline)

            }

            // Usage bar

            GeometryReader { geo in

                ZStack(alignment: .leading) {

                    // Background

                    RoundedRectangle(cornerRadius: 3)

                        .fill(.quaternary)

                    // Used space

                    RoundedRectangle(cornerRadius: 3)

                        .fill(usageColor)

                        .frame(width: geo.size.width * CGFloat(disk.usedPercentage / 100))

                }

            }

            .frame(height: 6)

            HStack {

                Text("\(disk.formattedFreeSpace) free")

                    .font(.caption)

                    .foregroundStyle(.secondary)

                Spacer()

                Text("of \(disk.formattedTotalSpace)")

                    .font(.caption)

                    .foregroundStyle(.tertiary)

            }

        }

        .padding(.vertical, 4)

    }

    private var usageColor: Color {

        let percentage = disk.usedPercentage

        if percentage > 90 { return .red }

        if percentage > 75 { return .orange }

        return .accentColor

    }

}

#Preview {

    SidebarView(

        selectedItem: .constant(.spaceLens),

        disks: [

            DiskInfo(

                name: "Macintosh HD",

                mountPoint: URL(fileURLWithPath: "/"),

                totalSpace: 500_000_000_000,

                freeSpace: 120_000_000_000,

                isRemovable: false,

                isInternal: true

            )

        ]

    )

    .frame(width: 250, height: 400)

}