Initial healthcheck implementation

ui/src/components/HealthBadge.tsx

@@ -0,0 +1,49 @@
+// ui/src/components/HealthBadge.tsx
+import React from 'react'
+import { Badge } from '@/components/ui/badge'
+import { HealthStatus } from '@/types/instance'
+import { CheckCircle, Loader2, XCircle } from 'lucide-react'
+
+interface HealthBadgeProps {
+  health?: HealthStatus
+}
+
+const HealthBadge: React.FC<HealthBadgeProps> = ({ health }) => {
+  if (!health) return null
+
+  const getIcon = () => {
+    switch (health.status) {
+      case 'ok': return <CheckCircle className="h-3 w-3" />
+      case 'loading': return <Loader2 className="h-3 w-3 animate-spin" />
+      case 'error': return <XCircle className="h-3 w-3" />
+    }
+  }
+
+  const getVariant = () => {
+    switch (health.status) {
+      case 'ok': return 'default'
+      case 'loading': return 'outline'
+      case 'error': return 'destructive'
+    }
+  }
+
+  const getText = () => {
+    switch (health.status) {
+      case 'ok': return 'Ready'
+      case 'loading': return 'Loading'
+      case 'error': return 'Error'
+    }
+  }
+
+  return (
+    <Badge 
+      variant={getVariant()} 
+      className={`flex items-center gap-1.5 ${health.status === 'ok' ? 'bg-green-100 text-green-800 border-green-200 dark:bg-green-900 dark:text-green-200 dark:border-green-800' : ''}`}
+    >
+      {getIcon()}
+      <span className="text-xs">{getText()}</span>
+    </Badge>
+  )
+}
+
+export default HealthBadge

ui/src/components/InstanceCard.tsx

@@ -3,8 +3,9 @@ import { Badge } from "@/components/ui/badge";
 import { Card, CardContent, CardHeader, CardTitle } from "@/components/ui/card";
 import { Instance } from "@/types/instance";
 import { Edit, FileText, Play, Square, Trash2 } from "lucide-react";
-import LogsModal from "@/components/ui/LogModal";
+import LogsModal from "@/components/LogModal";
 import { useState } from "react";
+import HealthBadge from "@/components/HealthBadge";
 
 interface InstanceCardProps {
   instance: Instance;
@@ -54,9 +55,7 @@ function InstanceCard({
         <CardHeader className="pb-3">
           <div className="flex items-center justify-between">
             <CardTitle className="text-lg">{instance.name}</CardTitle>
-            <Badge variant={instance.running ? "default" : "secondary"}>
+            {instance.running ? <HealthBadge health={instance.health} /> : <Badge variant="secondary">Stopped</Badge>}
-              {instance.running ? "Running" : "Stopped"}
-            </Badge>
           </div>
         </CardHeader>
 

ui/src/components/InstanceModal.tsx

@@ -1,4 +1,3 @@
-// ui/src/components/InstanceModal.tsx
 import React, { useState, useEffect } from 'react'
 import { Button } from '@/components/ui/button'
 import { Input } from '@/components/ui/input'

ui/src/components/LogModal.tsx

@@ -171,7 +171,7 @@ const LogsModal: React.FC<LogsModalProps> = ({
 
   return (
     <Dialog open={open} onOpenChange={onOpenChange}>
-      <DialogContent className="max-w-4xl max-h-[80vh] flex flex-col">
+      <DialogContent className="sm:max-w-4xl max-w-[calc(100%-2rem)] max-h-[80vh] flex flex-col">
         <DialogHeader>
           <div className="flex items-center justify-between">
             <div>

ui/src/components/SystemInfoModal.tsx

@@ -1,4 +1,3 @@
-// ui/src/components/SystemInfoModal.tsx
 import React, { useState, useEffect } from 'react'
 import { Button } from '@/components/ui/button'
 import {

ui/src/contexts/InstancesContext.tsx

@@ -1,6 +1,7 @@
 import { createContext, useContext, useState, useEffect, useCallback, ReactNode } from 'react'
-import { CreateInstanceOptions, Instance } from '@/types/instance'
+import { CreateInstanceOptions, Instance, HealthStatus } from '@/types/instance'
 import { instancesApi } from '@/lib/api'
+import { healthService } from '@/lib/healthService'
 
 interface InstancesContextState {
   instances: Instance[]
@@ -36,6 +37,31 @@ export const InstancesProvider = ({ children }: InstancesProviderProps) => {
     setError(null)
   }, [])
 
+  const updateInstanceHealth = useCallback((instanceName: string, health: HealthStatus) => {
+    setInstances(prev => prev.map(instance => 
+      instance.name === instanceName 
+        ? { ...instance, health }
+        : instance
+    ))
+  }, [])
+
+  useEffect(() => {
+    instances.forEach(instance => {
+      if (instance.running) {
+        healthService.startHealthCheck(
+          instance.name,
+          (health) => updateInstanceHealth(instance.name, health)
+        )
+      } else {
+        healthService.stopHealthCheck(instance.name)
+      }
+    })
+  }, [instances, updateInstanceHealth])
+
+  useEffect(() => {
+    return () => healthService.stopAll()
+  }, [])
+
   const fetchInstances = useCallback(async () => {
     try {
       setLoading(true)
@@ -82,6 +108,7 @@ export const InstancesProvider = ({ children }: InstancesProviderProps) => {
   const stopInstance = useCallback(async (name: string) => {
     try {
       setError(null)
+      healthService.stopHealthCheck(name)
       await instancesApi.stop(name)
       await fetchInstances()
     } catch (err) {
@@ -102,6 +129,7 @@ export const InstancesProvider = ({ children }: InstancesProviderProps) => {
   const deleteInstance = useCallback(async (name: string) => {
     try {
       setError(null)
+      healthService.stopHealthCheck(name)
       await instancesApi.delete(name)
       await fetchInstances()
     } catch (err) {
@@ -109,17 +137,14 @@ export const InstancesProvider = ({ children }: InstancesProviderProps) => {
     }
   }, [fetchInstances])
 
-  // Fetch instances on mount
   useEffect(() => {
     fetchInstances()
   }, [fetchInstances])
 
   const value: InstancesContextType = {
-    // State
     instances,
     loading,
     error,
-    // Actions
     fetchInstances,
     createInstance,
     updateInstance,
@@ -143,4 +168,4 @@ export const useInstances = (): InstancesContextType => {
     throw new Error('useInstances must be used within an InstancesProvider')
   }
   return context
-}
+}

ui/src/lib/healthService.ts

@@ -0,0 +1,90 @@
+// ui/src/lib/healthService.ts
+import { HealthStatus } from '@/types/instance'
+
+class HealthService {
+  private intervals: Map<string, NodeJS.Timeout> = new Map()
+  private startupTimeouts: Map<string, NodeJS.Timeout> = new Map()
+
+  async checkHealth(instanceName: string): Promise<HealthStatus> {
+    try {
+      const response = await fetch(`/api/v1/instances/${instanceName}/proxy/health`)
+      
+      if (response.status === 200) {
+        return {
+          status: 'ok',
+          lastChecked: new Date()
+        }
+      } else if (response.status === 503) {
+        const data = await response.json()
+        return {
+          status: 'loading',
+          message: data.error.message,
+          lastChecked: new Date()
+        }
+      } else {
+        return {
+          status: 'error',
+          message: `HTTP ${response.status}`,
+          lastChecked: new Date()
+        }
+      }
+    } catch (error) {
+      return {
+        status: 'error',
+        message: 'Network error',
+        lastChecked: new Date()
+      }
+    }
+  }
+
+  startHealthCheck(instanceName: string, onUpdate: (health: HealthStatus) => void): void {
+    // Don't start if already checking
+    if (this.isChecking(instanceName)) {
+      return
+    }
+    
+    const startupTimeout = setTimeout(() => {
+      this.startupTimeouts.delete(instanceName)
+      
+      const check = async () => {
+        const health = await this.checkHealth(instanceName)
+        onUpdate(health)
+      }
+      
+      check()
+      const interval = setInterval(check, 60000)
+      this.intervals.set(instanceName, interval)
+    }, 2000)
+    
+    this.startupTimeouts.set(instanceName, startupTimeout)
+  }
+
+  stopHealthCheck(instanceName: string): void {
+    // Clear startup timeout if exists
+    const startupTimeout = this.startupTimeouts.get(instanceName)
+    if (startupTimeout) {
+      clearTimeout(startupTimeout)
+      this.startupTimeouts.delete(instanceName)
+    }
+    
+    // Clear interval if exists
+    const interval = this.intervals.get(instanceName)
+    if (interval) {
+      clearInterval(interval)
+      this.intervals.delete(instanceName)
+    }
+  }
+
+  stopAll(): void {
+    this.startupTimeouts.forEach(timeout => clearTimeout(timeout))
+    this.startupTimeouts.clear()
+    this.intervals.forEach(interval => clearInterval(interval))
+    this.intervals.clear()
+  }
+
+  isChecking(instanceName: string): boolean {
+    return this.intervals.has(instanceName) || this.startupTimeouts.has(instanceName)
+  }
+}
+
+export const healthService = new HealthService()

ui/src/types/instance.ts

@@ -2,8 +2,15 @@ import { CreateInstanceOptions } from '@/schemas/instanceOptions'
 
 export { type CreateInstanceOptions } from '@/schemas/instanceOptions'
 
+export interface HealthStatus {
+  status: 'ok' | 'loading' | 'error'
+  message?: string
+  lastChecked: Date
+}
+
 export interface Instance {
   name: string;
   running: boolean;
   options?: CreateInstanceOptions;
+  health?: HealthStatus;
 }