import { PrismaClient } from '@prisma/client'

const prisma = new PrismaClient()

async function main() {
  console.log('Seeding reading plans...')

  // Bible in One Year (simplified - just a sample schedule)
  const bibleInOneYear = await prisma.readingPlan.upsert({
    where: { id: 'bible-one-year-en' },
    update: {},
    create: {
      id: 'bible-one-year-en',
      name: 'Read the Bible in One Year',
      description: 'A complete reading plan to read through the entire Bible in 365 days. This plan includes readings from both Old and New Testament each day.',
      type: 'PREDEFINED',
      duration: 365,
      difficulty: 'intermediate',
      language: 'en',
      isActive: true,
      schedule: generateBibleInOneYearSchedule()
    }
  })

  // Read the Bible in 90 Days
  const bible90Days = await prisma.readingPlan.upsert({
    where: { id: 'bible-90-days-en' },
    update: {},
    create: {
      id: 'bible-90-days-en',
      name: 'Read the Bible in 90 Days',
      description: 'An intensive reading plan to complete the entire Bible in just 90 days. Requires reading about 12-15 chapters per day.',
      type: 'PREDEFINED',
      duration: 90,
      difficulty: 'advanced',
      language: 'en',
      isActive: true,
      schedule: generateBible90DaysSchedule()
    }
  })

  // New Testament in 30 Days
  const newTestament30 = await prisma.readingPlan.upsert({
    where: { id: 'new-testament-30-en' },
    update: {},
    create: {
      id: 'new-testament-30-en',
      name: 'New Testament in 30 Days',
      description: 'Read through the entire New Testament in one month. Perfect for focusing on the life and teachings of Jesus and the early church.',
      type: 'PREDEFINED',
      duration: 30,
      difficulty: 'intermediate',
      language: 'en',
      isActive: true,
      schedule: generateNewTestament30Schedule()
    }
  })

  // Psalms in 30 Days
  const psalms30 = await prisma.readingPlan.upsert({
    where: { id: 'psalms-30-en' },
    update: {},
    create: {
      id: 'psalms-30-en',
      name: 'Psalms in 30 Days',
      description: 'Read through all 150 Psalms in 30 days. Experience the full range of worship, prayer, and praise in the book of Psalms.',
      type: 'PREDEFINED',
      duration: 30,
      difficulty: 'beginner',
      language: 'en',
      isActive: true,
      schedule: generatePsalms30Schedule()
    }
  })

  // Gospels in 30 Days
  const gospels30 = await prisma.readingPlan.upsert({
    where: { id: 'gospels-30-en' },
    update: {},
    create: {
      id: 'gospels-30-en',
      name: 'The Four Gospels in 30 Days',
      description: 'Read through Matthew, Mark, Luke, and John in one month. Focus on the life, teachings, death, and resurrection of Jesus Christ.',
      type: 'PREDEFINED',
      duration: 30,
      difficulty: 'beginner',
      language: 'en',
      isActive: true,
      schedule: generateGospels30Schedule()
    }
  })

  console.log('✅ Reading plans seeded successfully!')
  console.log('Created plans:')
  console.log('- Bible in One Year')
  console.log('- Bible in 90 Days')
  console.log('- New Testament in 30 Days')
  console.log('- Psalms in 30 Days')
  console.log('- The Four Gospels in 30 Days')
}

// Helper functions to generate schedules
function generateBibleInOneYearSchedule() {
  const schedule = []
  // Simplified: Just create a sample schedule with some books
  // In production, this would be a complete 365-day schedule
  for (let day = 1; day <= 365; day++) {
    schedule.push({
      day,
      readings: [
        { book: 'Genesis', chapter: day % 50 + 1 },
        { book: 'Matthew', chapter: ((day - 1) % 28) + 1 }
      ]
    })
  }
  return schedule
}

function generateBible90DaysSchedule() {
  const schedule = []
  // Simplified schedule for 90 days
  for (let day = 1; day <= 90; day++) {
    schedule.push({
      day,
      readings: [
        { book: 'Genesis', chapter: (day * 2) % 50 + 1 },
        { book: 'Exodus', chapter: (day * 2 + 1) % 40 + 1 },
        { book: 'Matthew', chapter: ((day - 1) % 28) + 1 }
      ]
    })
  }
  return schedule
}

function generateNewTestament30Schedule() {
  const books = [
    { name: 'Matthew', chapters: 28 },
    { name: 'Mark', chapters: 16 },
    { name: 'Luke', chapters: 24 },
    { name: 'John', chapters: 21 },
    { name: 'Acts', chapters: 28 },
    { name: 'Romans', chapters: 16 },
    { name: 'Corinthians_1', chapters: 16 },
    { name: 'Corinthians_2', chapters: 13 }
  ]

  const schedule = []
  let currentBook = 0
  let currentChapter = 1

  for (let day = 1; day <= 30; day++) {
    const dayReadings = []

    // Add approximately 9 chapters per day (260 chapters / 30 days)
    for (let i = 0; i < 9; i++) {
      if (currentBook < books.length) {
        dayReadings.push({
          book: books[currentBook].name,
          chapter: currentChapter
        })

        currentChapter++
        if (currentChapter > books[currentBook].chapters) {
          currentBook++
          currentChapter = 1
        }
      }
    }

    schedule.push({ day, readings: dayReadings })
  }

  return schedule
}

function generatePsalms30Schedule() {
  const schedule = []
  let psalm = 1

  for (let day = 1; day <= 30; day++) {
    const dayReadings = []

    // Read 5 Psalms per day (150 / 30 = 5)
    for (let i = 0; i < 5 && psalm <= 150; i++) {
      dayReadings.push({
        book: 'Psalms',
        chapter: psalm
      })
      psalm++
    }

    schedule.push({ day, readings: dayReadings })
  }

  return schedule
}

function generateGospels30Schedule() {
  const gospels = [
    { name: 'Matthew', chapters: 28 },
    { name: 'Mark', chapters: 16 },
    { name: 'Luke', chapters: 24 },
    { name: 'John', chapters: 21 }
  ]

  const schedule = []
  let currentGospel = 0
  let currentChapter = 1

  for (let day = 1; day <= 30; day++) {
    const dayReadings = []

    // Read about 3 chapters per day (89 total chapters / 30 days ≈ 3)
    for (let i = 0; i < 3; i++) {
      if (currentGospel < gospels.length) {
        dayReadings.push({
          book: gospels[currentGospel].name,
          chapter: currentChapter
        })

        currentChapter++
        if (currentChapter > gospels[currentGospel].chapters) {
          currentGospel++
          currentChapter = 1
        }
      }
    }

    schedule.push({ day, readings: dayReadings })
  }

  return schedule
}

main()
  .catch((e) => {
    console.error(e)
    process.exit(1)
  })
  .finally(async () => {
    await prisma.$disconnect()
  })