import { Suspense } from 'react'
import { notFound } from 'next/navigation'
import BibleReader from '../../../reader'
import { prisma } from '@/lib/db'

interface PageProps {
  params: Promise<{
    locale: string
    version: string
    book: string
    chapter: string
  }>
}

// Helper function to convert readable names to IDs
async function getResourceIds(versionSlug: string, bookSlug: string, chapterNum: string) {
  try {
    console.log('[SEO URL] Looking for version:', versionSlug, 'book:', bookSlug, 'chapter:', chapterNum)

    // Find version by abbreviation (slug)
    const version = await prisma.bibleVersion.findFirst({
      where: {
        abbreviation: {
          equals: versionSlug,
          mode: 'insensitive'
        }
      }
    })

    if (!version) {
      console.log('[SEO URL] Version not found:', versionSlug)
      return null
    }

    console.log('[SEO URL] Found version:', version.abbreviation, version.id)

    // Find book by bookKey (slug) within this version
    const book = await prisma.bibleBook.findFirst({
      where: {
        versionId: version.id,
        bookKey: {
          equals: bookSlug,
          mode: 'insensitive'
        }
      }
    })

    if (!book) {
      console.log('[SEO URL] Book not found for bookKey:', bookSlug, 'in version:', version.abbreviation)
      // List available books for debugging
      const availableBooks = await prisma.bibleBook.findMany({
        where: { versionId: version.id },
        select: { bookKey: true, name: true },
        take: 5
      })
      console.log('[SEO URL] Sample available books:', availableBooks)
      return null
    }

    console.log('[SEO URL] Found book:', book.name, book.id)

    // Validate chapter number
    const chapter = parseInt(chapterNum)
    if (isNaN(chapter) || chapter < 1) {
      console.log('[SEO URL] Invalid chapter number:', chapterNum)
      return null
    }

    // Check if chapter exists
    const chapterRecord = await prisma.bibleChapter.findFirst({
      where: {
        bookId: book.id,
        chapterNum: chapter
      }
    })

    if (!chapterRecord) {
      console.log('[SEO URL] Chapter not found:', chapter, 'in book:', book.name)
      return null
    }

    console.log('[SEO URL] Successfully resolved:', version.abbreviation, book.name, chapter)

    return {
      versionId: version.id,
      bookId: book.id,
      chapter: chapter,
      version: version,
      book: book
    }
  } catch (error) {
    console.error('[SEO URL] Error resolving resource IDs:', error)
    return null
  }
}

// Generate metadata for SEO
export async function generateMetadata({ params }: PageProps) {
  const { version, book, chapter } = await params
  const resources = await getResourceIds(version, book, chapter)
  
  if (!resources) {
    return {
      title: 'Bible Chapter Not Found',
      description: 'The requested Bible chapter could not be found.'
    }
  }

  const title = `${resources.book.name} ${chapter} - ${resources.version.name} | Biblical Guide`
  const description = `Read ${resources.book.name} chapter ${chapter} in the ${resources.version.name} translation. Free online Bible study with AI chat and prayer community.`

  return {
    title,
    description,
    openGraph: {
      title,
      description,
      type: 'article',
      url: `https://biblical-guide.com/${(await params).locale}/bible/${version}/${book}/${chapter}`,
    },
    twitter: {
      card: 'summary',
      title,
      description,
    },
    alternates: {
      canonical: `https://biblical-guide.com/${(await params).locale}/bible/${version}/${book}/${chapter}`,
    }
  }
}

export default async function BibleChapterPage({ params }: PageProps) {
  const { version, book, chapter } = await params
  const resources = await getResourceIds(version, book, chapter)

  if (!resources) {
    notFound()
  }

  // Pass the parameters as props instead of URLSearchParams
  return (
    <Suspense fallback={
      <div style={{
        display: 'flex',
        justifyContent: 'center',
        alignItems: 'center',
        minHeight: '200px'
      }}>
        Loading Bible reader...
      </div>
    }>
      <BibleReader
        initialVersion={resources.versionId}
        initialBook={resources.bookId}
        initialChapter={chapter}
      />
    </Suspense>
  )
}

// Note: generateStaticParams removed for now to avoid complexity
// Can be added later for better performance with popular Bible chapters