Fix/issues

web-ui/Providers.tsx

@@ -2,11 +2,14 @@
 
 import { RainbowProvider } from "./src/shared/providers/RainbowProvider";
 import { BrokerProvider } from "./src/shared/providers/BrokerProvider";
+import { DepositGuardProvider } from "./src/shared/providers/DepositGuardProvider";
 
 export function Providers({ children }: { children: React.ReactNode }) {
   return (
     <RainbowProvider>
-      <BrokerProvider>{children}</BrokerProvider>
+      <BrokerProvider>
+        <DepositGuardProvider>{children}</DepositGuardProvider>
+      </BrokerProvider>
     </RainbowProvider>
   );
 }

web-ui/src/app/inference/chat/components/OptimizedChatPage.tsx

@@ -3,7 +3,9 @@
 import * as React from "react";
 import { useState, useEffect, useRef, useCallback } from "react";
 import { useAccount } from "wagmi";
+import { useConnectModal } from "@rainbow-me/rainbowkit";
 import { useBroker } from "@/shared/providers/BrokerProvider";
+import { useDepositGuard } from "@/shared/providers/DepositGuardProvider";
 import { useChatHistory } from "../../../../shared/hooks/useChatHistory";
 import { useProviderSearch } from "../../hooks/useProviderSearch";
 import { useStreamingState } from "../../../../shared/hooks/useStreamingState";
@@ -27,23 +29,14 @@ import {
   AlertDialogHeader,
   AlertDialogTitle,
 } from "@/components/ui/alert-dialog";
-import type { Provider } from "../../../../shared/types/broker";
-
-
-
-interface Message {
-  role: "system" | "user" | "assistant";
-  content: string;
-  timestamp?: number;
-  chatId?: string;
-  isVerified?: boolean | null;
-  isVerifying?: boolean;
-}
+import type { Provider, Message } from "../../../../shared/types/broker";
 
 
 export function OptimizedChatPage() {
   const { isConnected, address } = useAccount();
-  const { broker, isInitializing, ledgerInfo, refreshLedgerInfo } = useBroker();
+  const { broker, readOnlyBroker, isInitializing, ledgerInfo, refreshLedgerInfo } = useBroker();
+  const { openConnectModal } = useConnectModal();
+  const { requestDeposit } = useDepositGuard();
   const { toast } = useToast();
 
   // Use toast for non-blocking errors
@@ -67,7 +60,7 @@ export function OptimizedChatPage() {
     providerPendingRefund,
     setSelectedProvider,
     refreshProviderBalance,
-  } = useProviderManagement(broker);
+  } = useProviderManagement(broker, readOnlyBroker);
 
   // Provider dropdown state (UI only)
   const [isDropdownOpen, setIsDropdownOpen] = useState(false);
@@ -171,6 +164,8 @@ export function OptimizedChatPage() {
     setErrorWithTimeout,
     isUserScrollingRef,
     messagesEndRef,
+    openConnectModal,
+    requestDeposit,
   });
 
   // Handle editing a user message - truncates conversation and resends
@@ -445,38 +440,6 @@ export function OptimizedChatPage() {
   // Note: handleDeposit is now handled globally in LayoutContent
 
 
-  if (!isConnected) {
-    return (
-      <div className="w-full">
-        <div className="bg-white rounded-xl border border-gray-200 p-8 text-center">
-          <div className="flex items-center justify-center mb-6">
-            <div className="w-16 h-16 bg-purple-50 rounded-full flex items-center justify-center border border-purple-200">
-              <svg
-                className="w-8 h-8 text-purple-600"
-                fill="none"
-                stroke="currentColor"
-                viewBox="0 0 24 24"
-              >
-                <path
-                  strokeLinecap="round"
-                  strokeLinejoin="round"
-                  strokeWidth={2}
-                  d="M12 9v2m0 4h.01m-6.938 4h13.856c1.54 0 2.502-1.667 1.732-2.5L13.732 4c-.77-.833-1.964-.833-2.732 0L3.732 16.5c-.77.833.192 2.5 1.732 2.5z"
-                />
-              </svg>
-            </div>
-          </div>
-          <h3 className="text-lg font-semibold text-gray-900 mb-2">
-            Wallet Not Connected
-          </h3>
-          <p className="text-gray-600">
-            Please connect your wallet to access AI inference features.
-          </p>
-        </div>
-      </div>
-    );
-  }
-
   return (
     <div className="w-full">
       <div className="mb-1 sm:mb-3">
@@ -564,7 +527,10 @@ export function OptimizedChatPage() {
               providerBalanceNeuron={providerBalanceNeuron}
               providerPendingRefund={providerPendingRefund}
               onAddFunds={() => {
-                // Use the existing top-up modal logic
+                if (!broker) {
+                  openConnectModal?.();
+                  return;
+                }
                 setShowTopUpModal(true);
               }}
             />

web-ui/src/app/inference/chat/components/ProviderSelector.tsx

@@ -1,6 +1,7 @@
 'use client'
 
 import React, { useState, useEffect, useMemo } from 'react'
+import { useAccount } from 'wagmi'
 import type { Provider } from '../../../../shared/types/broker'
 import { OFFICIAL_PROVIDERS } from '../../constants/providers'
 import { copyToClipboard } from '@/lib/utils'
@@ -17,6 +18,7 @@ import {
     getModelHealthStatus,
     getHealthStatusColor,
     getHealthStatusText,
+    type ProviderHealthStatus,
 } from '@/shared/hooks/useProviderHealth'
 import { formatNumber } from '@/shared/utils/formatNumber'
 
@@ -78,7 +80,7 @@ function MobileProviderCard({
     isSelected: boolean
     isRecentlyUsed: boolean
     onSelect: () => void
-    healthData: Map<string, any[]>
+    healthData: Map<string, ProviderHealthStatus[]>
     isLoadingHealth: boolean
 }) {
     const isTeeVerified =
@@ -217,16 +219,14 @@ export function ProviderSelector({
     onAddFunds,
 }: ProviderSelectorProps) {
     const isMobile = useIsMobile()
+    const { isConnected } = useAccount()
     const [mobileSearchQuery, setMobileSearchQuery] = useState('')
 
     // Get health data using SWR hook (automatically cached across components)
     const { healthData, isLoading: isLoadingHealth } = useProviderHealth()
 
     // Recently used providers set for quick lookup
-    const recentlyUsedSet = useMemo(() => {
-        const used = getRecentlyUsedProviders()
-        return new Set(used)
-    }, [])
+    const recentlyUsedSet = new Set(getRecentlyUsedProviders())
 
     // Filter out unverified providers - only show verified providers that can be used
     const verifiedProviders = useMemo(() => {
@@ -715,7 +715,13 @@ export function ProviderSelector({
                     )}
                     {/* Right Section: Balance and Add Funds */}
                     <div className="flex items-center gap-1 sm:gap-1.5 px-1 sm:px-2 py-1 rounded-md">
-                        <div
+                        {!isConnected ? (
+                            <span className="text-xs text-red-500 whitespace-nowrap px-1.5 py-1">
+                                Wallet not connected
+                            </span>
+                        ) : (
+                            <>
+                            <div
                             className={`flex items-center gap-1 sm:gap-1.5 px-1.5 sm:px-2 py-1 rounded-md text-xs ${
                                 (providerBalanceNeuron !== null &&
                                     providerBalanceNeuron === BigInt(0)) ||
@@ -864,6 +870,8 @@ export function ProviderSelector({
                             </svg>
                             <span className="hidden sm:inline">Add Funds</span>
                         </button>
+                            </>
+                        )}
                     </div>
                 </div>
             )}

web-ui/src/app/inference/chat/components/TopUpModal.tsx

@@ -2,6 +2,7 @@
 
 import * as React from "react";
 import { useState } from "react";
+import type { ZGComputeNetworkBroker } from '@0glabs/0g-serving-broker';
 import { a0giToNeuron } from "../../../../shared/utils/currency";
 import { formatNumber } from "../../../../shared/utils/formatNumber";
 import {
@@ -44,7 +45,7 @@ interface LedgerInfo {
 interface TopUpModalProps {
   isOpen: boolean;
   onClose: () => void;
-  broker: any; // TODO: Replace with proper broker type when available
+  broker: ZGComputeNetworkBroker | null;
   selectedProvider: Provider | null;
   topUpAmount: string;
   setTopUpAmount: (amount: string) => void;
@@ -53,7 +54,7 @@ interface TopUpModalProps {
   providerBalance: number | null;
   providerPendingRefund: number | null;
   ledgerInfo: LedgerInfo | null;
-  refreshLedgerInfo: () => Promise<void>;
+  refreshLedgerInfo: () => Promise<LedgerInfo | null>;
   refreshProviderBalance: () => Promise<void>;
   setErrorWithTimeout: (error: string | null) => void;
 }
@@ -275,6 +276,8 @@ export function TopUpModal({
           <Button
             onClick={handleTopUp}
             disabled={
+              !broker ||
+              !selectedProvider ||
               isTopping ||
               !topUpAmount ||
               parseFloat(topUpAmount) < MINIMUM_DEPOSITS.TOPUP_PROVIDER ||

web-ui/src/app/inference/components/ModelCard.tsx

@@ -0,0 +1,104 @@
+'use client'
+
+import * as React from 'react'
+import { Card, CardContent } from '@/components/ui/card'
+import { Badge } from '@/components/ui/badge'
+import {
+    MessageCircle,
+    Image,
+    Mic,
+    Wand2,
+    Users,
+    Shield,
+    ChevronRight,
+} from 'lucide-react'
+import { cn } from '@/lib/utils'
+import type { ModelSummary } from '@/shared/types/broker'
+
+interface ModelCardProps {
+    model: ModelSummary
+    onClick: (model: ModelSummary) => void
+}
+
+const SERVICE_TYPE_CONFIG: Record<string, { label: string; icon: React.ElementType; color: string; hoverColor: string }> = {
+    chatbot: { label: 'Chatbot', icon: MessageCircle, color: 'bg-blue-100 text-blue-700', hoverColor: 'hover:bg-blue-100 hover:text-blue-700' },
+    'text-to-image': { label: 'Text to Image', icon: Image, color: 'bg-purple-100 text-purple-700', hoverColor: 'hover:bg-purple-100 hover:text-purple-700' },
+    'image-editing': { label: 'Image Editing', icon: Wand2, color: 'bg-pink-100 text-pink-700', hoverColor: 'hover:bg-pink-100 hover:text-pink-700' },
+    'speech-to-text': { label: 'Speech to Text', icon: Mic, color: 'bg-amber-100 text-amber-700', hoverColor: 'hover:bg-amber-100 hover:text-amber-700' },
+}
+
+function formatPriceRange(range: { min: number; max: number } | null): string | null {
+    if (!range) return null
+    if (range.min === range.max) {
+        return range.min.toFixed(2)
+    }
+    return `${range.min.toFixed(2)} - ${range.max.toFixed(2)}`
+}
+
+export function ModelCard({ model, onClick }: ModelCardProps) {
+    const typeConfig = SERVICE_TYPE_CONFIG[model.serviceType] || SERVICE_TYPE_CONFIG.chatbot
+    const TypeIcon = typeConfig.icon
+    const isImageService = model.serviceType === 'text-to-image' || model.serviceType === 'image-editing'
+
+    const priceDisplay = isImageService
+        ? formatPriceRange(model.outputPriceRange)
+        : formatPriceRange(model.inputPriceRange)
+
+    const priceUnit = isImageService ? '0G/image' : '0G/1M tokens'
+
+    return (
+        <Card
+            className="relative group cursor-pointer hover:shadow-glow"
+            onClick={() => onClick(model)}
+        >
+            <CardContent className="p-5">
+                {/* Header */}
+                <div className="flex items-start justify-between mb-3">
+                    <div className="flex-1 min-w-0">
+                        <h3 className="text-base font-semibold text-foreground truncate mb-2">
+                            {model.displayName}
+                        </h3>
+                        <Badge
+                            className={cn(
+                                'border-0 px-2 py-0.5 text-xs font-medium flex items-center gap-1 w-fit',
+                                typeConfig.color,
+                                typeConfig.hoverColor,
+                            )}
+                        >
+                            <TypeIcon className="h-3 w-3" />
+                            {typeConfig.label}
+                        </Badge>
+                    </div>
+                    <ChevronRight className="h-5 w-5 text-muted-foreground group-hover:text-primary transition-colors flex-shrink-0 mt-1" />
+                </div>
+
+                {/* Stats */}
+                <div className="flex items-center gap-3 mt-4 text-sm">
+                    <div className="flex items-center gap-1.5 text-muted-foreground">
+                        <Users className="h-3.5 w-3.5" />
+                        <span>
+                            {model.providerCount} provider{model.providerCount !== 1 ? 's' : ''}
+                        </span>
+                    </div>
+                    {model.verifiedCount > 0 && (
+                        <div className="flex items-center gap-1.5 text-green-600">
+                            <Shield className="h-3.5 w-3.5" />
+                            <span>{model.verifiedCount} verified</span>
+                        </div>
+                    )}
+                </div>
+
+                {/* Price range */}
+                {priceDisplay && (
+                    <div className="mt-3 flex items-center gap-2 text-xs bg-secondary px-2.5 py-1.5 rounded-lg font-mono">
+                        <span className="text-muted-foreground">Price:</span>
+                        <span className="font-semibold text-foreground">
+                            {priceDisplay}
+                        </span>
+                        <span className="text-muted-foreground">{priceUnit}</span>
+                    </div>
+                )}
+            </CardContent>
+        </Card>
+    )
+}