#!/usr/bin/env tsx
/**
 * Update posts with heroImage by matching Webflow URLs to uploaded Media
 */

import { config as dotenvConfig } from 'dotenv'
import { resolve, dirname } from 'path'
import { fileURLToPath } from 'url'

const __filename = fileURLToPath(import.meta.url)
const __dirname = dirname(__filename)
const envPath = resolve(__dirname, '../../.env')

dotenvConfig({ path: envPath })

// Debug
console.log('Loading .env from:', envPath)
console.log('PAYLOAD_SECRET loaded:', !!process.env.PAYLOAD_SECRET)

import { getPayload } from 'payload'
import config from '../../src/payload.config'
import { parseWebflowCSV } from './csvParser'
import { transformPosts } from './transformers'

async function main() {
  const payload = await getPayload({ config })

  console.log('🔍 Loading media files...')
  const media = await payload.find({ collection: 'media', limit: 100, depth: 0 })

  // Create filename to ID mapping
  const filenameToId = new Map<string, string>()
  media.docs.forEach((m: any) => {
    filenameToId.set(m.filename, m.id)
  })

  console.log(`📁 Found ${filenameToId.size} media files`)

  console.log('📂 Loading CSV data...')
  const data = await parseWebflowCSV('/Users/pukpuk/Dev/website-enchun-mgr/恩群數位行銷 - 行銷放大鏡集.csv')

  console.log('📝 Loading posts...')
  const posts = await payload.find({ collection: 'posts', limit: 100, depth: 0 })
  const postsBySlug = new Map<string, any>()
  posts.docs.forEach((post: any) => {
    postsBySlug.set(post.slug, post)
  })

  console.log('\n🔗 Matching hero images...\n')

  let matched = 0
  let updated = 0
  let notFound = 0

  for (const webflowPost of data.posts) {
    const featuredImage = webflowPost.featuredImage
    if (!featuredImage) continue

    // Extract filename from Webflow URL
    const urlParts = featuredImage.split('/')
    const webflowFilename = urlParts[urlParts.length - 1]

    // Find matching media by comparing filename patterns
    let mediaId: string | null = null

    for (const [filename, id] of filenameToId.entries()) {
      // Check if Webflow filename is contained in Payload filename or vice versa
      // They may have different prefixes but the hash should match
      if (filename.includes(webflowFilename.split('.')[0].substring(0, 15)) ||
          webflowFilename.includes(filename.split('.')[0].substring(0, 15))) {
        mediaId = id
        matched++
        break
      }
    }

    if (!mediaId) {
      notFound++
      console.log(`❌ No match: ${webflowPost.title?.substring(0, 40)}`)
      console.log(`   URL: ${webflowFilename}`)
      continue
    }

    // Find and update the post
    const transformed = transformPosts([webflowPost])[0]
    const post = postsBySlug.get(transformed.slug)

    if (post && !post.heroImage) {
      await payload.update({
        collection: 'posts',
        id: post.id,
        data: { heroImage: mediaId },
      })
      updated++
      console.log(`✓ Updated: ${webflowPost.title?.substring(0, 40)}`)
    }
  }

  console.log('\n=== SUMMARY ===')
  console.log(`Matched: ${matched}`)
  console.log(`Updated: ${updated}`)
  console.log(`Not found: ${notFound}`)
}

main().catch(console.error)