251208:1625 Frontend: to be complete admin panel, Backend: tobe recheck all task

frontend/app/(admin)/admin/workflows/[id]/edit/page.tsx

@@ -1,164 +1,206 @@
-"use client";
+'use client';
 
-import { useState, useEffect } from "react";
-import { Tabs, TabsContent, TabsList, TabsTrigger } from "@/components/ui/tabs";
-import { DSLEditor } from "@/components/workflows/dsl-editor";
-import { VisualWorkflowBuilder } from "@/components/workflows/visual-builder";
-import { Button } from "@/components/ui/button";
-import { Input } from "@/components/ui/input";
-import { Label } from "@/components/ui/label";
-import { Textarea } from "@/components/ui/textarea";
-import { Card } from "@/components/ui/card";
-import {
-  Select,
-  SelectContent,
-  SelectItem,
-  SelectTrigger,
-  SelectValue,
-} from "@/components/ui/select";
-import { workflowApi } from "@/lib/api/workflows";
-import { WorkflowType } from "@/types/workflow";
-import { useRouter } from "next/navigation";
-import { Loader2 } from "lucide-react";
+import { useState, useEffect } from 'react';
+import { useRouter, useParams } from 'next/navigation';
+import { Tabs, TabsContent, TabsList, TabsTrigger } from '@/components/ui/tabs';
+import { DSLEditor } from '@/components/workflows/dsl-editor';
+import { VisualWorkflowBuilder } from '@/components/workflows/visual-builder';
+import { Button } from '@/components/ui/button';
+import { Input } from '@/components/ui/input';
+import { Label } from '@/components/ui/label';
+import { Textarea } from '@/components/ui/textarea';
+import { Card } from '@/components/ui/card';
+import { Select, SelectContent, SelectItem, SelectTrigger, SelectValue } from '@/components/ui/select';
+import { workflowApi } from '@/lib/api/workflows';
+import { Workflow, CreateWorkflowDto } from '@/types/workflow';
+import { toast } from 'sonner';
+import { Save, ArrowLeft, Loader2 } from 'lucide-react';
+import Link from 'next/link';
 
-export default function WorkflowEditPage({ params }: { params: { id: string } }) {
+export default function WorkflowEditPage() {
+  const params = useParams();
   const router = useRouter();
-  const [loading, setLoading] = useState(true);
+  const id = params?.id === 'new' ? null : Number(params?.id);
+
+  const [loading, setLoading] = useState(!!id);
   const [saving, setSaving] = useState(false);
-  const [workflowData, setWorkflowData] = useState({
-    workflow_name: "",
-    description: "",
-    workflow_type: "CORRESPONDENCE" as WorkflowType,
-    dsl_definition: "",
+  const [workflowData, setWorkflowData] = useState<Partial<Workflow>>({
+    workflow_name: '',
+    description: '',
+    workflow_type: 'CORRESPONDENCE',
+    dsl_definition: 'name: New Workflow\nversion: 1.0\nsteps: []',
+    is_active: true,
   });
 
   useEffect(() => {
-    const fetchWorkflow = async () => {
-      setLoading(true);
-      try {
-        const data = await workflowApi.getWorkflow(parseInt(params.id));
-        if (data) {
-          setWorkflowData({
-            workflow_name: data.workflow_name,
-            description: data.description,
-            workflow_type: data.workflow_type,
-            dsl_definition: data.dsl_definition,
-          });
-        }
-      } catch (error) {
-        console.error("Failed to fetch workflow", error);
-      } finally {
-        setLoading(false);
-      }
-    };
-
-    fetchWorkflow();
-  }, [params.id]);
+    if (id) {
+        const fetchWorkflow = async () => {
+            try {
+                const data = await workflowApi.getWorkflow(id);
+                if (data) {
+                    setWorkflowData(data);
+                } else {
+                    toast.error("Workflow not found");
+                    router.push('/admin/workflows');
+                }
+            } catch (error) {
+                toast.error("Failed to load workflow");
+                console.error(error);
+            } finally {
+                setLoading(false);
+            }
+        };
+        fetchWorkflow();
+    }
+  }, [id, router]);
 
   const handleSave = async () => {
+    if (!workflowData.workflow_name) {
+        toast.error("Workflow name is required");
+        return;
+    }
+
     setSaving(true);
     try {
-      await workflowApi.updateWorkflow(parseInt(params.id), workflowData);
-      router.push("/admin/workflows");
+        const dto: CreateWorkflowDto = {
+            workflow_name: workflowData.workflow_name || '',
+            description: workflowData.description || '',
+            workflow_type: workflowData.workflow_type || 'CORRESPONDENCE',
+            dsl_definition: workflowData.dsl_definition || '',
+        };
+
+        if (id) {
+            await workflowApi.updateWorkflow(id, dto);
+            toast.success("Workflow updated successfully");
+        } else {
+            await workflowApi.createWorkflow(dto);
+            toast.success("Workflow created successfully");
+            router.push('/admin/workflows');
+        }
     } catch (error) {
-      console.error("Failed to save workflow", error);
-      alert("Failed to save workflow");
+        toast.error("Failed to save workflow");
+        console.error(error);
     } finally {
-      setSaving(false);
+        setSaving(false);
     }
   };
 
   if (loading) {
-    return (
-      <div className="flex justify-center py-12">
-        <Loader2 className="h-8 w-8 animate-spin text-muted-foreground" />
-      </div>
-    );
+      return (
+          <div className="flex items-center justify-center h-screen">
+              <Loader2 className="h-8 w-8 animate-spin" />
+          </div>
+      );
   }
 
   return (
-    <div className="p-6 space-y-6">
+    <div className="p-6 space-y-6 max-w-7xl mx-auto">
       <div className="flex justify-between items-center">
-        <h1 className="text-3xl font-bold">Edit Workflow</h1>
+        <div className="flex items-center gap-4">
+             <Link href="/admin/workflows">
+                <Button variant="ghost" size="icon">
+                    <ArrowLeft className="h-5 w-5" />
+                </Button>
+            </Link>
+            <div>
+                <h1 className="text-3xl font-bold">{id ? 'Edit Workflow' : 'New Workflow'}</h1>
+                <p className="text-muted-foreground">{id ? `Version ${workflowData.version}` : 'Create a new workflow definition'}</p>
+            </div>
+        </div>
         <div className="flex gap-2">
-          <Button variant="outline" onClick={() => router.back()}>Cancel</Button>
+          <Link href="/admin/workflows">
+             <Button variant="outline">Cancel</Button>
+          </Link>
           <Button onClick={handleSave} disabled={saving}>
             {saving && <Loader2 className="mr-2 h-4 w-4 animate-spin" />}
-            Save Workflow
+            <Save className="mr-2 h-4 w-4" />
+            {id ? 'Save Changes' : 'Create Workflow'}
           </Button>
         </div>
       </div>
 
-      <Card className="p-6">
-        <div className="grid gap-4">
-          <div>
-            <Label htmlFor="workflow_name">Workflow Name *</Label>
-            <Input
-              id="workflow_name"
-              value={workflowData.workflow_name}
-              onChange={(e) =>
-                setWorkflowData({
-                  ...workflowData,
-                  workflow_name: e.target.value,
-                })
-              }
-            />
-          </div>
+      <div className="grid grid-cols-1 lg:grid-cols-3 gap-6">
+        <div className="lg:col-span-1 space-y-6">
+            <Card className="p-6">
+                <div className="grid gap-4">
+                <div>
+                    <Label htmlFor="name">Workflow Name *</Label>
+                    <Input
+                    id="name"
+                    value={workflowData.workflow_name}
+                    onChange={(e) =>
+                        setWorkflowData({
+                        ...workflowData,
+                        workflow_name: e.target.value,
+                        })
+                    }
+                    placeholder="e.g. Standard RFA Workflow"
+                    />
+                </div>
 
-          <div>
-            <Label htmlFor="description">Description</Label>
-            <Textarea
-              id="description"
-              value={workflowData.description}
-              onChange={(e) =>
-                setWorkflowData({
-                  ...workflowData,
-                  description: e.target.value,
-                })
-              }
-            />
-          </div>
+                <div>
+                    <Label htmlFor="desc">Description</Label>
+                    <Textarea
+                    id="desc"
+                    value={workflowData.description}
+                    onChange={(e) =>
+                        setWorkflowData({
+                        ...workflowData,
+                        description: e.target.value,
+                        })
+                    }
+                    placeholder="Describe the purpose of this workflow"
+                    />
+                </div>
 
-          <div>
-            <Label htmlFor="workflow_type">Workflow Type</Label>
-            <Select
-              value={workflowData.workflow_type}
-              onValueChange={(value) =>
-                setWorkflowData({ ...workflowData, workflow_type: value as WorkflowType })
-              }
-            >
-              <SelectTrigger id="workflow_type">
-                <SelectValue />
-              </SelectTrigger>
-              <SelectContent>
-                <SelectItem value="CORRESPONDENCE">Correspondence</SelectItem>
-                <SelectItem value="RFA">RFA</SelectItem>
-                <SelectItem value="DRAWING">Drawing</SelectItem>
-              </SelectContent>
-            </Select>
-          </div>
+                <div>
+                    <Label htmlFor="type">Workflow Type</Label>
+                    <Select
+                    value={workflowData.workflow_type}
+                    onValueChange={(value: Workflow['workflow_type']) =>
+                        setWorkflowData({ ...workflowData, workflow_type: value })
+                    }
+                    >
+                    <SelectTrigger>
+                        <SelectValue placeholder="Select type" />
+                    </SelectTrigger>
+                    <SelectContent>
+                        <SelectItem value="CORRESPONDENCE">Correspondence</SelectItem>
+                        <SelectItem value="RFA">RFA</SelectItem>
+                        <SelectItem value="DRAWING">Drawing</SelectItem>
+                    </SelectContent>
+                    </Select>
+                </div>
+                </div>
+            </Card>
         </div>
-      </Card>
 
-      <Tabs defaultValue="dsl">
-        <TabsList>
-          <TabsTrigger value="dsl">DSL Editor</TabsTrigger>
-          <TabsTrigger value="visual">Visual Builder</TabsTrigger>
-        </TabsList>
+        <div className="lg:col-span-2">
+             <Tabs defaultValue="dsl" className="w-full">
+                <TabsList className="w-full justify-start">
+                <TabsTrigger value="dsl">DSL Editor</TabsTrigger>
+                <TabsTrigger value="visual">Visual Builder</TabsTrigger>
+                </TabsList>
 
-        <TabsContent value="dsl" className="mt-4">
-          <DSLEditor
-            initialValue={workflowData.dsl_definition}
-            onChange={(value) =>
-              setWorkflowData({ ...workflowData, dsl_definition: value })
-            }
-          />
-        </TabsContent>
+                <TabsContent value="dsl" className="mt-4">
+                <DSLEditor
+                    initialValue={workflowData.dsl_definition}
+                    onChange={(value) =>
+                       setWorkflowData({ ...workflowData, dsl_definition: value })
+                    }
+                />
+                </TabsContent>
 
-        <TabsContent value="visual" className="mt-4">
-          <VisualWorkflowBuilder />
-        </TabsContent>
-      </Tabs>
+                <TabsContent value="visual" className="mt-4 h-[600px]">
+                <VisualWorkflowBuilder
+                   dslString={workflowData.dsl_definition}
+                   onDslChange={(newDsl) => setWorkflowData({ ...workflowData, dsl_definition: newDsl })}
+                   onSave={() => toast.info("Visual state saving not implemented in this demo")}
+                />
+                </TabsContent>
+            </Tabs>
+        </div>
+      </div>
     </div>
   );
 }