import fs from 'fs'
import path from 'path'
import matter from 'gray-matter'

const CONTENT_DIR = path.join(process.cwd(), 'content')
const POSTS_DIR = path.join(CONTENT_DIR, 'posts')

function getFiles(dir) {
  return fs.readdirSync(dir).map(f => path.join(dir, f)).filter(f => f.endsWith('.md'))
}

const allPosts = getFiles(POSTS_DIR)
allPosts.forEach(post => {
  if (fs.existsSync(post)) {
    const pData = matter(fs.readFileSync(post, 'utf8'))
    let dateStr = ''
    if (pData.data.date instanceof Date) {
      dateStr = pData.data.date.toISOString()
    } else if (typeof pData.data.date === 'string') {
      dateStr = pData.data.date
    }
    
    // If date is July 18, 2026 or July 17, 2026
    if (dateStr.includes('2026-07-18') || dateStr.includes('2026-07-17')) {
      // Try to get original date from filename
      const match = path.basename(post).match(/^(\d{4}-\d{2}-\d{2})/)
      if (match && !match[1].includes('2026-07-18') && !match[1].includes('2026-07-17')) {
        pData.data.date = match[1] + 'T00:00:00.000Z'
        fs.writeFileSync(post, matter.stringify(pData.content, pData.data))
        console.log(`📅 Fixed date for ${path.basename(post)} to ${match[1]}`)
      } else {
        // Find it from the text if possible or leave it
      }
    }
  }
})