import { logger } from '@thedaviddias/logging'
import { XMLParser } from 'fast-xml-parser'
import { NextResponse } from 'next/server'

export const RSS_FEED_URL = process.env.RSS_FEED_URL || 'https://bg.raindrop.io/rss/public/52790163'

// Segment Config
export const dynamic = 'force-dynamic'
export const fetchCache = 'force-no-store'
export const revalidate = 0

async function fetchWithRetry(url: string, retries = 3): Promise<Response> {
  for (let i = 0; i < retries; i++) {
    try {
      const response = await fetch(url, {
        next: { revalidate: 172800 },
        headers: {
          'User-Agent': 'Mozilla/5.0 (compatible; RSS-Reader/1.0)'
        }
      })
      if (response.ok) return response
    } catch (error) {
      if (i === retries - 1) throw error
      await new Promise(resolve => setTimeout(resolve, 1000 * 2 ** i))
    }
  }
  throw new Error('Failed to fetch after retries')
}

export async function GET() {
  try {
    const response = await fetchWithRetry(RSS_FEED_URL)
    const xmlData = await response.text()
    const parser = new XMLParser()
    const result = parser.parse(xmlData)

    if (!result?.rss?.channel?.item) {
      return NextResponse.json({ items: [] })
    }

    const items = Array.isArray(result.rss.channel.item)
      ? result.rss.channel.item
      : [result.rss.channel.item]

    const formattedItems = items.map((item: any) => ({
      title: item.title || '',
      link: item.link || '',
      pubDate: item.pubDate || '',
      description: item.description || ''
    }))

    return NextResponse.json({ items: formattedItems })
  } catch (error) {
    logger.error('Failed to fetch or parse RSS feed:', { data: error, tags: { type: 'api' } })
    return NextResponse.json({ error: 'Failed to fetch or parse RSS feed' }, { status: 500 })
  }
}