'use client';

import * as React from 'react';
import { cn } from '../lib/cn';

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;
  children: React.ReactNode;
  className?: string;
}

export function Tabs({ defaultValue, value, onValueChange, children, className }: TabsProps) {
  const [internalValue, setInternalValue] = React.useState(defaultValue);
  const currentValue = value ?? internalValue;

  const handleValueChange = React.useCallback((newValue: string) => {
    setInternalValue(newValue);
    onValueChange?.(newValue);
  }, [onValueChange]);

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

export function TabsList({ children, className }: { children: React.ReactNode; className?: string }) {
  return (
    <div className={cn('inline-flex h-10 items-center justify-center rounded-md bg-muted p-1 text-muted-foreground', className)}>
      {children}
    </div>
  );
}

export function TabsTrigger({ value, children, className }: { value: string; children: React.ReactNode; className?: string }) {
  const context = React.useContext(TabsContext);
  if (!context) throw new Error('TabsTrigger must be used within Tabs');

  const isActive = context.value === value;

  return (
    <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
      )}
    >
      {children}
    </button>
  );
}

export function TabsContent({ value, children, className }: { value: string; children: React.ReactNode; className?: string }) {
  const context = React.useContext(TabsContext);
  if (!context) throw new Error('TabsContent must be used within Tabs');

  if (context.value !== value) return null;

  return <div 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)}>{children}</div>;
}
