Refactor: Move personality button

src/components/ChatHeader.tsx

@@ -1,4 +1,4 @@
-import { ChevronDown } from "lucide-react";
+import { ChevronDown, UserCog } from "lucide-react";
 import { Button } from "@/components/ui/button";
 import {
   DropdownMenu,
@@ -6,18 +6,35 @@ import {
   DropdownMenuItem,
   DropdownMenuTrigger,
 } from "@/components/ui/dropdown-menu";
+import {
+  Dialog,
+  DialogContent,
+  DialogDescription,
+  DialogHeader,
+  DialogTitle,
+  DialogTrigger,
+} from "@/components/ui/dialog";
+import { Textarea } from "@/components/ui/textarea";
+import { useState } from "react";
 
 interface ChatHeaderProps {
   showModelSelector?: boolean;
   selectedModel?: string;
   onModelChange?: (model: string) => void;
+  systemPrompt?: string;
+  onSystemPromptChange?: (prompt: string) => void;
 }
 
 export const ChatHeader = ({ 
   showModelSelector = false,
   selectedModel = "ChatGPT 4.1",
-  onModelChange
+  onModelChange,
+  systemPrompt = "Você é um assistente útil e prestativo.",
+  onSystemPromptChange
 }: ChatHeaderProps) => {
+  const [isPersonalityOpen, setIsPersonalityOpen] = useState(false);
+  const [tempSystemPrompt, setTempSystemPrompt] = useState(systemPrompt);
+  
   const models = [
     "ChatGPT 4.1",
     "ChatGPT 5",
@@ -25,6 +42,13 @@ export const ChatHeader = ({
     "Claude Opus 4.1",
   ];
 
+  const handleSavePersonality = () => {
+    if (onSystemPromptChange) {
+      onSystemPromptChange(tempSystemPrompt);
+    }
+    setIsPersonalityOpen(false);
+  };
+
   return (
     <header className="border-b border-border bg-card/50 backdrop-blur-sm px-6 py-4 flex items-center justify-between">
       <div className="flex items-center gap-4">
@@ -54,6 +78,46 @@ export const ChatHeader = ({
             </DropdownMenuContent>
           </DropdownMenu>
         )}
+
+        {showModelSelector && onSystemPromptChange && (
+          <Dialog open={isPersonalityOpen} onOpenChange={setIsPersonalityOpen}>
+            <DialogTrigger asChild>
+              <Button
+                variant="outline"
+                className="gap-2 glass-effect"
+                onClick={() => setTempSystemPrompt(systemPrompt)}
+              >
+                <UserCog className="w-4 h-4" />
+                <span className="font-medium">Personalidade</span>
+              </Button>
+            </DialogTrigger>
+            <DialogContent>
+              <DialogHeader>
+                <DialogTitle>Personalidade da IA</DialogTitle>
+                <DialogDescription>
+                  Defina o estilo, tom ou função da IA nesta conversa
+                </DialogDescription>
+              </DialogHeader>
+              <Textarea
+                value={tempSystemPrompt}
+                onChange={(e) => setTempSystemPrompt(e.target.value)}
+                placeholder="Ex: Você é um assistente técnico especializado em programação..."
+                className="min-h-[150px]"
+              />
+              <div className="flex justify-end gap-2">
+                <Button
+                  variant="outline"
+                  onClick={() => setIsPersonalityOpen(false)}
+                >
+                  Cancelar
+                </Button>
+                <Button onClick={handleSavePersonality}>
+                  Salvar
+                </Button>
+              </div>
+            </DialogContent>
+          </Dialog>
+        )}
       </div>
 
       <div className="text-sm text-muted-foreground">