ai-cs/frontend/components/ui/tabs.tsx

"use client"

import * as React from "react"
import { cn } from "@/lib/utils"

interface TabsContextValue {
  value: string
  onValueChange: (value: string) => void
}

const TabsContext = React.createContext<TabsContextValue | undefined>(undefined)

interface TabsProps {
  defaultValue: string
  value?: string
  onValueChange?: (value: string) => void
  className?: string
  children: React.ReactNode
}

const Tabs = ({ defaultValue, value: controlledValue, onValueChange: controlledOnValueChange, className, children }: TabsProps) => {
  const [uncontrolledValue, setUncontrolledValue] = React.useState(defaultValue)
  const isControlled = controlledValue !== undefined
  const value = isControlled ? controlledValue : uncontrolledValue
  const onValueChange = isControlled ? controlledOnValueChange : setUncontrolledValue

  return (
    <TabsContext.Provider value={{ value, onValueChange: onValueChange || (() => {}) }}>
      <div className={className}>{children}</div>
    </TabsContext.Provider>
  )
}

interface TabsListProps {
  className?: string
  children: React.ReactNode
}

const TabsList = React.forwardRef<HTMLDivElement, TabsListProps>(
  ({ className, ...props }, ref) => (
    <div
      ref={ref}
      className={cn(
        "inline-flex h-10 items-center justify-center rounded-md bg-muted p-1 text-muted-foreground",
        className
      )}
      {...props}
    />
  )
)
TabsList.displayName = "TabsList"

interface TabsTriggerProps {
  value: string
  className?: string
  children: React.ReactNode
}

const TabsTrigger = React.forwardRef<HTMLButtonElement, TabsTriggerProps>(
  ({ value, className, children, ...props }, ref) => {
    const context = React.useContext(TabsContext)
    if (!context) {
      throw new Error("TabsTrigger must be used within Tabs")
    }

    const isActive = context.value === value

    return (
      <button
        ref={ref}
        type="button"
        onClick={() => context.onValueChange(value)}
        className={cn(
          "inline-flex items-center justify-center whitespace-nowrap rounded-sm px-3 py-1.5 text-sm font-medium ring-offset-background transition-all focus-visible:outline-none focus-visible:ring-2 focus-visible:ring-ring focus-visible:ring-offset-2 disabled:pointer-events-none disabled:opacity-50",
          isActive && "bg-background text-foreground shadow-sm",
          className
        )}
        {...props}
      >
        {children}
      </button>
    )
  }
)
TabsTrigger.displayName = "TabsTrigger"

interface TabsContentProps {
  value: string
  className?: string
  children: React.ReactNode
}

const TabsContent = React.forwardRef<HTMLDivElement, TabsContentProps>(
  ({ value, className, children, ...props }, ref) => {
    const context = React.useContext(TabsContext)
    if (!context) {
      throw new Error("TabsContent must be used within Tabs")
    }

    if (context.value !== value) {
      return null
    }

    return (
      <div
        ref={ref}
        className={cn(
          "mt-2 ring-offset-background focus-visible:outline-none focus-visible:ring-2 focus-visible:ring-ring focus-visible:ring-offset-2",
          className
        )}
        {...props}
      >
        {children}
      </div>
    )
  }
)
TabsContent.displayName = "TabsContent"

export { Tabs, TabsList, TabsTrigger, TabsContent }