package cache

import (
	"sync"
	"time"
)

// FeedItem represents a cached feed item
type FeedItem struct {
	EventID string
	Author  string
	Content string
	Time    time.Time
	Link    string
	Title   string
	Summary string
	Image   string
}

// FeedCache stores the kind 1 feed
type FeedCache struct {
	items       []FeedItem
	mu          sync.RWMutex
	lastUpdated time.Time
}

// NewFeedCache creates a new feed cache
func NewFeedCache() *FeedCache {
	return &FeedCache{
		items: make([]FeedItem, 0),
	}
}

// Set updates the feed cache
func (fc *FeedCache) Set(items []FeedItem) {
	fc.mu.Lock()
	defer fc.mu.Unlock()
	fc.items = items
	fc.lastUpdated = time.Now()
}

// Get retrieves feed items
func (fc *FeedCache) Get() []FeedItem {
	fc.mu.RLock()
	defer fc.mu.RUnlock()
	return fc.items
}

// GetLastUpdated returns when the feed was last updated
func (fc *FeedCache) GetLastUpdated() time.Time {
	fc.mu.RLock()
	defer fc.mu.RUnlock()
	return fc.lastUpdated
}