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Sources/Publish_TableOfContent/Breadcrumbs.swift

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+//
+//  Breadcrumps.swift
+//  
+//
+//  Created by Klaus Kneupner on 19/07/2023.
+//
+
+import Foundation
+import Publish
+import Plot
+
+
+public struct Breadcrumps<Site: Website>: Component where Site.ItemMetadata : HasShortTitle {
+    var originalPath: Path
+    var _body: ComponentGroup
+
+    public var body: Component {
+        //  debugPrint("breadcrump for \(self.originalPath) : \(items.count)")
+        return _body.members.count > 0 ? Div {
+            _body
+        }.class("breadcrumps") as Component
+        : EmptyComponent() as Component
+    }
+
+    public init(section: Section<Site>, item: any TableOfContentEntry)  {
+        self.originalPath = item.path
+        var converted = section.items
+            .filter({return item.path.hasAncestor($0.path)})
+            .sorted(by: {return $0.path ~< $1.path})
+            .map({Link($0.title, url: $0.path.absoluteString).class("breadcrump")})
+        for i in stride (from: converted.count-1, through: 1, by: -1) {
+            converted.insert(Image(url: "/images/socialmedia-icons/chevron.svg", description: "breadcrump separator"), at: i)
+        }
+        _body = ComponentGroup(members: converted)
+    }
+}