"use client"

import { useEffect } from "react"

export function PlanTracker({ planId, title }: { planId: string, title: string }) {
    useEffect(() => {
        const stored = localStorage.getItem("csp_recent_plans")
        let plans: { id: string, title: string, lastVisited: number }[] = []

        if (stored) {
            try {
                plans = JSON.parse(stored)
            } catch (e) {
                console.error(e)
            }
        }

        // Remove existing entry for this plan
        plans = plans.filter(p => p.id !== planId)

        // Add to top
        plans.unshift({
            id: planId,
            title: title,
            lastVisited: Date.now()
        })

        // Keep max 5
        plans = plans.slice(0, 5)

        localStorage.setItem("csp_recent_plans", JSON.stringify(plans))
    }, [planId, title])

    return null
}