FEAT: NEW WORKFLOW ENGINE (#3160)

Co-authored-by: Joel <iamjoel007@gmail.com>
Co-authored-by: Yeuoly <admin@srmxy.cn>
Co-authored-by: JzoNg <jzongcode@gmail.com>
Co-authored-by: StyleZhang <jasonapring2015@outlook.com>
Co-authored-by: jyong <jyong@dify.ai>
Co-authored-by: nite-knite <nkCoding@gmail.com>
Co-authored-by: jyong <718720800@qq.com>

web/app/components/workflow/nodes/end/default.ts

@@ -0,0 +1,33 @@
+import { BlockEnum } from '../../types'
+import type { NodeDefault } from '../../types'
+import { type EndNodeType } from './types'
+import { ALL_CHAT_AVAILABLE_BLOCKS, ALL_COMPLETION_AVAILABLE_BLOCKS } from '@/app/components/workflow/constants'
+
+const nodeDefault: NodeDefault<EndNodeType> = {
+  defaultValue: {
+    outputs: [],
+  },
+  getAvailablePrevNodes(isChatMode: boolean) {
+    const nodes = isChatMode
+      ? ALL_CHAT_AVAILABLE_BLOCKS
+      : ALL_COMPLETION_AVAILABLE_BLOCKS.filter(type => type !== BlockEnum.End)
+    return nodes
+  },
+  getAvailableNextNodes() {
+    return []
+  },
+  checkValid(payload: EndNodeType) {
+    let isValid = true
+    let errorMessages = ''
+    if (payload.type) {
+      isValid = true
+      errorMessages = ''
+    }
+    return {
+      isValid,
+      errorMessage: errorMessages,
+    }
+  },
+}
+
+export default nodeDefault