feat(app): Allow selecting the AI model at any time without opening the settings page.

Allow changing focus mode at any time while chatting.
Styling tweaks.

src/components/MessageInputActions/Attach.tsx

@@ -5,7 +5,7 @@ import {
   PopoverPanel,
   Transition,
 } from '@headlessui/react';
-import { CopyPlus, File, LoaderCircle, Plus, Trash } from 'lucide-react';
+import { File, LoaderCircle, Paperclip, Plus, Trash } from 'lucide-react';
 import { Fragment, useRef, useState } from 'react';
 import { File as FileType } from '../ChatWindow';
 
@@ -176,8 +176,10 @@ const Attach = ({
         multiple
         hidden
       />
-      <CopyPlus size={showText ? 18 : undefined} />
-      {showText && <p className="text-xs font-medium pl-[1px]">Attach</p>}
+      <Paperclip size="18" />
+      {showText && (
+        <p className="text-xs font-medium pl-[1px] hidden lg:block">Attach</p>
+      )}
     </button>
   );
 };

src/components/MessageInputActions/Focus.tsx

@@ -93,13 +93,13 @@ const Focus = ({
       <Transition
         as={Fragment}
         enter="transition ease-out duration-150"
-        enterFrom="opacity-0 translate-y-1"
+        enterFrom="opacity-0 -translate-y-1"
         enterTo="opacity-100 translate-y-0"
         leave="transition ease-in duration-150"
         leaveFrom="opacity-100 translate-y-0"
-        leaveTo="opacity-0 translate-y-1"
+        leaveTo="opacity-0 -translate-y-1"
       >
-        <PopoverPanel className="absolute z-10 w-64 md:w-[500px] left-0">
+        <PopoverPanel className="absolute z-10 w-64 md:w-[500px] left-0 bottom-full mb-2">
           <div className="grid grid-cols-1 md:grid-cols-2 lg:grid-cols-3 gap-2 bg-light-primary dark:bg-dark-primary border rounded-lg border-light-200 dark:border-dark-200 w-full p-4 max-h-[200px] md:max-h-none overflow-y-auto">
             {focusModes.map((mode, i) => (
               <PopoverButton

src/components/MessageInputActions/ModelSelector.tsx

@@ -0,0 +1,305 @@
+import { useEffect, useState } from 'react';
+import { Cpu, ChevronDown, ChevronRight } from 'lucide-react';
+import { cn } from '@/lib/utils';
+import {
+  Popover,
+  PopoverButton,
+  PopoverPanel,
+  Transition,
+} from '@headlessui/react';
+import { Fragment } from 'react';
+
+interface ModelOption {
+  provider: string;
+  model: string;
+  displayName: string;
+}
+
+interface ProviderModelMap {
+  [provider: string]: {
+    displayName: string;
+    models: ModelOption[];
+  };
+}
+
+const ModelSelector = ({
+  selectedModel,
+  setSelectedModel,
+}: {
+  selectedModel: { provider: string; model: string } | null;
+  setSelectedModel: (model: { provider: string; model: string }) => void;
+}) => {
+  const [providerModels, setProviderModels] = useState<ProviderModelMap>({});
+  const [providersList, setProvidersList] = useState<string[]>([]);
+  const [loading, setLoading] = useState(true);
+  const [selectedModelDisplay, setSelectedModelDisplay] = useState<string>('');
+  const [selectedProviderDisplay, setSelectedProviderDisplay] =
+    useState<string>('');
+  const [expandedProviders, setExpandedProviders] = useState<
+    Record<string, boolean>
+  >({});
+
+  useEffect(() => {
+    const fetchModels = async () => {
+      try {
+        const response = await fetch('/api/models', {
+          headers: {
+            'Content-Type': 'application/json',
+          },
+        });
+
+        if (!response.ok) {
+          throw new Error(`Failed to fetch models: ${response.status}`);
+        }
+
+        const data = await response.json();
+        const providersData: ProviderModelMap = {};
+
+        // Organize models by provider
+        Object.entries(data.chatModelProviders).forEach(
+          ([provider, models]: [string, any]) => {
+            const providerDisplayName =
+              provider.charAt(0).toUpperCase() + provider.slice(1);
+            providersData[provider] = {
+              displayName: providerDisplayName,
+              models: [],
+            };
+
+            Object.entries(models).forEach(
+              ([modelKey, modelData]: [string, any]) => {
+                providersData[provider].models.push({
+                  provider,
+                  model: modelKey,
+                  displayName: modelData.displayName || modelKey,
+                });
+              },
+            );
+          },
+        );
+
+        // Filter out providers with no models
+        Object.keys(providersData).forEach((provider) => {
+          if (providersData[provider].models.length === 0) {
+            delete providersData[provider];
+          }
+        });
+
+        // Sort providers by name (only those that have models)
+        const sortedProviders = Object.keys(providersData).sort();
+        setProvidersList(sortedProviders);
+
+        // Initialize expanded state for all providers
+        const initialExpandedState: Record<string, boolean> = {};
+        sortedProviders.forEach((provider) => {
+          initialExpandedState[provider] = selectedModel?.provider === provider;
+        });
+
+        // Expand the first provider if none is selected
+        if (sortedProviders.length > 0 && !selectedModel) {
+          initialExpandedState[sortedProviders[0]] = true;
+        }
+
+        setExpandedProviders(initialExpandedState);
+        setProviderModels(providersData);
+
+        // Find the current model in our options to display its name
+        if (selectedModel) {
+          const provider = providersData[selectedModel.provider];
+          if (provider) {
+            const currentModel = provider.models.find(
+              (option) => option.model === selectedModel.model,
+            );
+
+            if (currentModel) {
+              setSelectedModelDisplay(currentModel.displayName);
+              setSelectedProviderDisplay(provider.displayName);
+            }
+          }
+        }
+
+        setLoading(false);
+      } catch (error) {
+        console.error('Error fetching models:', error);
+        setLoading(false);
+      }
+    };
+
+    fetchModels();
+  }, [selectedModel, setSelectedModel]);
+
+  const toggleProviderExpanded = (provider: string) => {
+    setExpandedProviders((prev) => ({
+      ...prev,
+      [provider]: !prev[provider],
+    }));
+  };
+
+  const handleSelectModel = (option: ModelOption) => {
+    setSelectedModel({
+      provider: option.provider,
+      model: option.model,
+    });
+
+    setSelectedModelDisplay(option.displayName);
+    setSelectedProviderDisplay(
+      providerModels[option.provider]?.displayName || option.provider,
+    );
+
+    // Save to localStorage for persistence
+    localStorage.setItem('chatModelProvider', option.provider);
+    localStorage.setItem('chatModel', option.model);
+  };
+
+  const getDisplayText = () => {
+    if (loading) return 'Loading...';
+    if (!selectedModelDisplay) return 'Select model';
+
+    return `${selectedModelDisplay} (${selectedProviderDisplay})`;
+  };
+
+  return (
+    <Popover className="relative">
+      {({ open }) => (
+        <>
+          <div className="relative">
+            <PopoverButton className="group flex items-center justify-center text-black/50 dark:text-white/50 rounded-xl hover:bg-light-secondary dark:hover:bg-dark-secondary active:scale-95 transition duration-200 hover:text-black dark:hover:text-white">
+              <Cpu size={18} />
+              <span className="mx-2 text-xs font-medium overflow-hidden text-ellipsis whitespace-nowrap max-w-44 hidden lg:block">
+                {getDisplayText()}
+              </span>
+              <ChevronDown
+                size={16}
+                className={cn(
+                  'transition-transform',
+                  open ? 'rotate-180' : 'rotate-0',
+                )}
+              />
+            </PopoverButton>
+          </div>
+
+          <Transition
+            as={Fragment}
+            enter="transition ease-out duration-200"
+            enterFrom="opacity-0 translate-y-1"
+            enterTo="opacity-100 translate-y-0"
+            leave="transition ease-in duration-150"
+            leaveFrom="opacity-100 translate-y-0"
+            leaveTo="opacity-0 translate-y-1"
+          >
+            <PopoverPanel className="absolute z-10 w-72 transform bottom-full mb-2">
+              <div className="overflow-hidden rounded-lg shadow-lg ring-1 ring-black/5 dark:ring-white/5 bg-white dark:bg-dark-secondary divide-y divide-light-200 dark:divide-dark-200">
+                <div className="px-4 py-3">
+                  <h3 className="text-sm font-medium text-black/90 dark:text-white/90">
+                    Select Model
+                  </h3>
+                  <p className="text-xs text-black/60 dark:text-white/60 mt-1">
+                    Choose a provider and model for your conversation
+                  </p>
+                </div>
+                <div className="max-h-72 overflow-y-auto">
+                  {loading ? (
+                    <div className="px-4 py-3 text-sm text-black/70 dark:text-white/70">
+                      Loading available models...
+                    </div>
+                  ) : providersList.length === 0 ? (
+                    <div className="px-4 py-3 text-sm text-black/70 dark:text-white/70">
+                      No models available
+                    </div>
+                  ) : (
+                    <div className="py-1">
+                      {providersList.map((providerKey) => {
+                        const provider = providerModels[providerKey];
+                        const isExpanded = expandedProviders[providerKey];
+
+                        return (
+                          <div
+                            key={providerKey}
+                            className="border-t border-light-200 dark:border-dark-200 first:border-t-0"
+                          >
+                            {/* Provider header */}
+                            <button
+                              className={cn(
+                                'w-full flex items-center justify-between px-4 py-2 text-sm text-left',
+                                'hover:bg-light-100 dark:hover:bg-dark-100',
+                                selectedModel?.provider === providerKey
+                                  ? 'bg-light-50 dark:bg-dark-50'
+                                  : '',
+                              )}
+                              onClick={() =>
+                                toggleProviderExpanded(providerKey)
+                              }
+                            >
+                              <div className="font-medium flex items-center">
+                                <Cpu
+                                  size={14}
+                                  className="mr-2 text-black/70 dark:text-white/70"
+                                />
+                                {provider.displayName}
+                                {selectedModel?.provider === providerKey && (
+                                  <span className="ml-2 text-xs text-[#24A0ED]">
+                                    (active)
+                                  </span>
+                                )}
+                              </div>
+                              <ChevronRight
+                                size={14}
+                                className={cn(
+                                  'transition-transform',
+                                  isExpanded ? 'rotate-90' : '',
+                                )}
+                              />
+                            </button>
+
+                            {/* Models list */}
+                            {isExpanded && (
+                              <div className="pl-6">
+                                {provider.models.map((modelOption) => (
+                                  <button
+                                    key={`${modelOption.provider}-${modelOption.model}`}
+                                    className={cn(
+                                      'w-full text-left px-4 py-2 text-sm flex items-center',
+                                      selectedModel?.provider ===
+                                        modelOption.provider &&
+                                        selectedModel?.model ===
+                                          modelOption.model
+                                        ? 'bg-light-100 dark:bg-dark-100 text-black dark:text-white'
+                                        : 'text-black/70 dark:text-white/70 hover:bg-light-100 dark:hover:bg-dark-100',
+                                    )}
+                                    onClick={() =>
+                                      handleSelectModel(modelOption)
+                                    }
+                                  >
+                                    <div className="flex flex-col flex-1">
+                                      <span className="font-medium">
+                                        {modelOption.displayName}
+                                      </span>
+                                    </div>
+                                    {/* Active indicator */}
+                                    {selectedModel?.provider ===
+                                      modelOption.provider &&
+                                      selectedModel?.model ===
+                                        modelOption.model && (
+                                        <div className="ml-auto bg-[#24A0ED] text-white text-xs px-1.5 py-0.5 rounded">
+                                          Active
+                                        </div>
+                                      )}
+                                  </button>
+                                ))}
+                              </div>
+                            )}
+                          </div>
+                        );
+                      })}
+                    </div>
+                  )}
+                </div>
+              </div>
+            </PopoverPanel>
+          </Transition>
+        </>
+      )}
+    </Popover>
+  );
+};
+
+export default ModelSelector;

src/components/MessageInputActions/Optimization.tsx

@@ -56,12 +56,12 @@ const Optimization = ({
             OptimizationModes.find((mode) => mode.key === optimizationMode)
               ?.icon
           }
-          <p className="text-xs font-medium">
+          {/* <p className="text-xs font-medium hidden lg:block">
             {
               OptimizationModes.find((mode) => mode.key === optimizationMode)
                 ?.title
             }
-          </p>
+          </p> */}
           <ChevronDown size={20} />
         </div>
       </PopoverButton>