Initial commit

src/Model/Edge.ts

@@ -0,0 +1,37 @@
+import { Hashable, TreeNode, TopicProperties } from './'
+const sha1 = require('sha1')
+
+export class Edge {
+  public name: string
+
+  public node!: TreeNode
+  public source: TreeNode | undefined
+  public target: TreeNode | undefined
+
+  constructor(name: string) {
+    this.name = name
+  }
+
+  public edges() {
+    return this.node ? Object.values(this.node.edges) : []
+  }
+
+  public hash(): string {
+    let previousHash = this.source ? this.source.sourceEdge.hash() : ''
+    return 'H' + sha1(previousHash + this.name)
+  }
+
+  public firstEdge(): Edge {
+    if (this.source) {
+      return this.source.sourceEdge.firstEdge()
+    } else {
+      return this
+    }
+  }
+
+  // public merge(edge: Edge) {
+  //   if (this.node && edge.node) {
+  //     this.node.updateWithNode(edge.node)
+  //   }
+  // }
+}