Add comment input on Internal and Vendor tabs

- Add CommentInput component with textarea and send button
- Enter to send, Shift+Enter for new line
- New comments append to the list immediately without reload
- Fixed 400px height for tab content with scrollable overflow
- Comment input bar pinned at bottom of tab container
- Add addComment API function calling AddCommentJson endpoint
- Auto-scroll to newest comment

src/pages/workorders/api.js

@@ -1,4 +1,6 @@
 import { workOrderApi } from "../../services/api";
+import { post } from "../../apiUtil";
+import { API_URL } from "../../constants";
 
 export const getWorkOrders = async (params = {}) => {
   try {
@@ -68,6 +70,14 @@ export const editWorkOrder = async (workOrder) => {
   }
 };
 
+export const addComment = async (workOrderId, text, commentType = "internal") => {
+  return post(`${API_URL}/WorkOrder/AddCommentJson`, {
+    WorkorderId: workOrderId,
+    Text: text,
+    CommentType: commentType,
+  });
+};
+
 export const deleteWorkOrder = async (id) => {
   try {
     await workOrderApi.delete(id);

src/pages/workorders/view/WorkOrderViewPage.css

@@ -126,10 +126,23 @@
   line-height: 1.5;
 }
 
+.woTabContainer {
+  display: flex;
+  flex-direction: column;
+  height: 400px;
+  border: 1px solid #e5e5e5;
+  border-radius: 0 0 6px 6px;
+}
+
+.woTabScroll {
+  flex: 1;
+  overflow-y: auto;
+  padding: 16px;
+}
+
 .woCommentTabs {
   display: flex;
   gap: 0;
-  margin-bottom: 16px;
   border-bottom: 2px solid #e5e5e5;
 }
 
@@ -187,6 +200,37 @@
   font-weight: 500;
 }
 
+.woCommentInput {
+  display: flex;
+  gap: 8px;
+  padding: 12px 16px;
+  border-top: 1px solid #e5e5e5;
+  background: #f8f9fa;
+  flex-shrink: 0;
+}
+
+.woCommentTextarea {
+  flex: 1;
+  border: 1px solid #ddd;
+  border-radius: 4px;
+  padding: 8px 12px;
+  font-size: 13px;
+  font-family: inherit;
+  resize: none;
+  line-height: 1.4;
+}
+
+.woCommentTextarea:focus {
+  outline: none;
+  border-color: #007bff;
+}
+
+.woCommentSend {
+  align-self: flex-end;
+  padding: 8px 16px;
+  font-size: 13px;
+}
+
 .loading {
   padding: 40px;
   text-align: center;

src/pages/workorders/view/WorkOrderViewPage.js

@@ -1,7 +1,7 @@
-import React, { useState, useEffect } from "react";
+import React, { useState, useEffect, useRef } from "react";
 import { useParams, useNavigate } from "react-router";
 import { toast } from "react-toastify";
-import { getWorkOrderById } from "../api";
+import { getWorkOrderById, addComment } from "../api";
 import "./WorkOrderViewPage.css";
 
 function formatDateTime(value) {
@@ -14,54 +14,109 @@ function formatDateTime(value) {
 }
 
 function CommentTimeline({ comments }) {
+  const bottomRef = useRef(null);
+
+  useEffect(() => {
+    bottomRef.current?.scrollIntoView();
+  }, [comments?.length]);
+
   if (!comments || comments.length === 0) {
-    return <p className="woNoComments">No comments yet.</p>;
+    return <div className="woTabScroll"><p className="woNoComments">No comments yet.</p></div>;
   }
 
   return (
-    <div className="woTimeline">
-      {comments.map((c) => (
-        <div key={c.id} className="woTimelineItem">
-          <div className="woTimelineHeader">
-            <span className="woTimelineAuthor">{c.userName || c.commenter || "System"}</span>
-            <span className="woTimelineDate">
-              {c.createdDate ? formatDateTime(c.createdDate) : ""}
-            </span>
+    <div className="woTabScroll">
+      <div className="woTimeline">
+        {comments.map((c) => (
+          <div key={c.id} className="woTimelineItem">
+            <div className="woTimelineHeader">
+              <span className="woTimelineAuthor">{c.userName || c.commenter || "System"}</span>
+              <span className="woTimelineDate">
+                {c.createdDate ? formatDateTime(c.createdDate) : ""}
+              </span>
+            </div>
+            <div className="woTimelineBody">{c.commenttext}</div>
           </div>
-          <div className="woTimelineBody">{c.commenttext}</div>
-        </div>
-      ))}
+        ))}
+        <div ref={bottomRef} />
+      </div>
     </div>
   );
 }
 
 function AuditTimeline({ entries }) {
   if (!entries || entries.length === 0) {
-    return <p className="woNoComments">No changes recorded.</p>;
+    return <div className="woTabScroll"><p className="woNoComments">No changes recorded.</p></div>;
   }
 
   return (
-    <div className="woTimeline">
-      {entries.map((e) => (
-        <div key={e.id} className="woTimelineItem woAuditItem">
-          <div className="woTimelineHeader">
-            <span className="woTimelineAuthor">{e.userName || "System"}</span>
-            <span className="woTimelineDate">
-              {e.createdAt ? formatDateTime(e.createdAt) : ""}
-            </span>
+    <div className="woTabScroll">
+      <div className="woTimeline">
+        {entries.map((e) => (
+          <div key={e.id} className="woTimelineItem woAuditItem">
+            <div className="woTimelineHeader">
+              <span className="woTimelineAuthor">{e.userName || "System"}</span>
+              <span className="woTimelineDate">
+                {e.createdAt ? formatDateTime(e.createdAt) : ""}
+              </span>
+            </div>
+            <div className="woTimelineBody">
+              <span className="woAuditField">{e.fieldName}</span>
+              {e.oldValue && <span className="woAuditOld">{e.oldValue}</span>}
+              <span className="woAuditArrow">→</span>
+              <span className="woAuditNew">{e.newValue}</span>
+            </div>
           </div>
-          <div className="woTimelineBody">
-            <span className="woAuditField">{e.fieldName}</span>
-            {e.oldValue && <span className="woAuditOld">{e.oldValue}</span>}
-            <span className="woAuditArrow">→</span>
-            <span className="woAuditNew">{e.newValue}</span>
-          </div>
-        </div>
-      ))}
+        ))}
+      </div>
     </div>
   );
 }
 
+function CommentInput({ workOrderId, commentType, onCommentAdded }) {
+  const [text, setText] = useState("");
+  const [sending, setSending] = useState(false);
+
+  const handleSubmit = async (e) => {
+    e.preventDefault();
+    if (!text.trim()) return;
+    setSending(true);
+    try {
+      const newComment = await addComment(workOrderId, text.trim(), commentType);
+      setText("");
+      if (onCommentAdded) onCommentAdded(newComment);
+    } catch (err) {
+      toast.error("Failed to add comment");
+    } finally {
+      setSending(false);
+    }
+  };
+
+  const handleKeyDown = (e) => {
+    if (e.key === "Enter" && !e.shiftKey) {
+      e.preventDefault();
+      handleSubmit(e);
+    }
+  };
+
+  return (
+    <form className="woCommentInput" onSubmit={handleSubmit}>
+      <textarea
+        className="woCommentTextarea"
+        value={text}
+        onChange={(e) => setText(e.target.value)}
+        onKeyDown={handleKeyDown}
+        placeholder="Type a comment... (Enter to send, Shift+Enter for new line)"
+        rows={2}
+        disabled={sending}
+      />
+      <button className="btn btn-primary woCommentSend" type="submit" disabled={sending || !text.trim()}>
+        {sending ? "Sending..." : "Send"}
+      </button>
+    </form>
+  );
+}
+
 export default function WorkOrderViewPage() {
   const { id } = useParams();
   const navigate = useNavigate();
@@ -83,6 +138,24 @@ export default function WorkOrderViewPage() {
     load();
   }, [id]);
 
+  const handleCommentAdded = (newComment) => {
+    setWo((prev) => ({
+      ...prev,
+      comments: [
+        ...prev.comments,
+        {
+          id: newComment.id,
+          createdDate: newComment.createdDate,
+          commenttext: newComment.commenttext,
+          commentType: newComment.commentType,
+          userName: newComment.userName,
+          commenter: null,
+          recordType: null,
+        },
+      ],
+    }));
+  };
+
   if (loading) return <div className="woViewPage"><div className="loading">Loading...</div></div>;
   if (!wo) return <div className="woViewPage"><div className="loading">Work order not found.</div></div>;
 
@@ -101,6 +174,8 @@ export default function WorkOrderViewPage() {
     { key: "audit", label: "Audit Log", count: auditLog.length },
   ];
 
+  const showInput = activeTab === "internal" || activeTab === "vendor";
+
   return (
     <div className="woViewPage">
       <div className="panel panel-default panel-connected">
@@ -188,10 +263,19 @@ export default function WorkOrderViewPage() {
                   </button>
                 ))}
               </div>
-              {activeTab === "customer" && <CommentTimeline comments={customerComments} />}
-              {activeTab === "vendor" && <CommentTimeline comments={vendorComments} />}
-              {activeTab === "internal" && <CommentTimeline comments={internalComments} />}
-              {activeTab === "audit" && <AuditTimeline entries={auditLog} />}
+              <div className="woTabContainer">
+                {activeTab === "customer" && <CommentTimeline comments={customerComments} />}
+                {activeTab === "vendor" && <CommentTimeline comments={vendorComments} />}
+                {activeTab === "internal" && <CommentTimeline comments={internalComments} />}
+                {activeTab === "audit" && <AuditTimeline entries={auditLog} />}
+                {showInput && (
+                  <CommentInput
+                    workOrderId={parseInt(id)}
+                    commentType={activeTab}
+                    onCommentAdded={handleCommentAdded}
+                  />
+                )}
+              </div>
             </div>
           </div>
         </div>