// ToolSidebar.swift
// Vertical tool strip on the left edge, matching Blender's T-panel.

import SwiftUI

struct ToolSidebar: View {
    @Binding var activeTool: ViewportTool

    var body: some View {
        VStack(spacing: 4) {
            ForEach(ViewportTool.allCases) { tool in
                Button {
                    activeTool = tool
                } label: {
                    Image(systemName: tool.icon)
                        .font(.system(size: 16))
                        .frame(width: 36, height: 36)
                        .background(
                            activeTool == tool
                                ? Color.accentColor.opacity(0.25)
                                : Color.clear,
                            in: RoundedRectangle(cornerRadius: 6)
                        )
                }
                .tint(activeTool == tool ? .orange : .secondary)
                .accessibilityLabel(tool.rawValue)
            }
            Spacer()
        }
        .padding(.vertical, 8)
        .padding(.horizontal, 4)
        .background(.ultraThinMaterial)
    }
}

// MARK: - Tools

enum ViewportTool: String, CaseIterable, Identifiable {
    case cursor   = "Cursor"
    case move     = "Move"
    case rotate   = "Rotate"
    case scale    = "Scale"
    case box      = "Box Select"
    case measure  = "Measure"
    case annotate = "Annotate"

    var id: String { rawValue }

    var icon: String {
        switch self {
        case .cursor:   "target"
        case .move:     "arrow.up.and.down.and.arrow.left.and.right"
        case .rotate:   "arrow.triangle.2.circlepath"
        case .scale:    "arrow.up.left.and.arrow.down.right.and.sparkle"
        case .box:      "rectangle.dashed"
        case .measure:  "ruler"
        case .annotate: "pencil.tip"
        }
    }
}