// Cards module - everything related to cards should go here (database install is automatic for AO server so no feature module)
import inquirer from 'inquirer'
import { aoEnv } from './settings.js'
import { getCard, getCardByName, createCard, prioritizeCard, completeCard, uncheckCard, refocusCard } from './api.js'
import { headerStyle } from './styles.js'

// The card menu is complex and so has been split into this separate file
export async function cardMenu() {
  console.log(`\n${headerStyle('My Deck')}`)
  const cardChoices = [
    { name: 'Top priorities', value: 'priorities', short: 'priorities' }, // hand? (7) (add #s in parens)
    { name: 'Cards in hand', value: 'subcards', short: 'hand' }, // (current) deck? (60)
    { name: 'Browse full deck', value: 'browse', short: 'browse' }, // archive? (10,000)
    'Back to AO Menu'
  ]
  const answer = await inquirer.prompt({
    name: 'card_menu',
    type: 'list',
    message: 'Please choose:',
    choices: cardChoices,
    pageSize: cardChoices.length,
  })
  switch(answer.card_menu) {
    case 'priorities':
      while(await prioritiesMenu()) {}
      break
    case 'subcards':
      while(await subcardsMenu()) {}
      break
    case 'browse':
      while(await browseMenu()) {}
      break
    default:
      return false
  }
  return true
}

// Displays the priorities of the given taskId in a menu. Selecting a card shows a menu for that card. If taskId is null, member card is used.
async function prioritiesMenu(taskId = null) {
  console.log(`\n${headerStyle('My Priorities')}`)
  let prioritiesChoices = []

  const memberId = aoEnv('AO_CLI_SESSION_MEMBERID')
  if(!memberId) {
    console.log('Not logged in.')
    return false
  }
  if(!taskId) {
    // Get the priorities of my member card
    taskId = memberId
  }
  const fetchedCards = await getCard(taskId, 'priorities')
  if(!fetchedCards || fetchedCards.length < 1) {
    console.log('Failed to fetch member card, this is bad.')
    return false
  }
  const card = fetchedCards[0]
  const priorityCards = fetchedCards.slice(1) // First card is member card itself
  let priorities = card.priorities.slice()
  priorities.reverse()
  console.log('You have', priorityCards.length, 'priorities:')
  prioritiesChoices = priorities.map((priorityTaskId, i) => {
    const priorityCard = priorityCards.find(p => p.taskId === priorityTaskId)
    if(!priorityCard) {
      return 'Missing card, repair your database'
    }
    return {
      name: priorityCard.name,
      value: { index: i, card: priorityCard },
      short: priorityCard.name.substring(0, 70) + priorityCard.name.length >= 70 ? '...' : ''
    }
  })
  prioritiesChoices.push(
    { name: 'Create priority', value: 'create_here', short: 'new priority' },
    { name: 'Back to AO Menu', value: false, short: 'back' }
  )
  const answer = await inquirer.prompt({
    name: 'priorities_menu',
    type: 'rawlist',
    message: 'Please choose:',
    choices: prioritiesChoices,
    loop: false
  })
  switch(answer.priorities_menu) {
    case false:
      return false
    case 'create_here':
      let previousCardCreatedText
      do {
        console.log('previousCardCreatedText is', previousCardCreatedText)
        previousCardCreatedText = await createCardInteractive()
      } while(previousCardCreatedText != '\n')
      return true
    case 'Missing card, repair your database':
      console.log('Database repair yet implemented, sorry.')
      return true
  }
  let chosenTask = answer.priorities_menu.card
  const chosenTaskId = chosenTask.taskId
  let previousAnswer
  do {
    previousAnswer = await priorityCardMenu(chosenTask, answer.priorities_menu.index)
    if(previousAnswer) {
      const fetchedCards = await getCard(chosenTaskId, false)
      if(!fetchedCards || fetchedCards.length < 1) {
        console.log('The card has disappeared. Maybe it was deleted, or cards held by no one are automatically cleaned up every five minutes.')
        return false
      }
      chosenTask = fetchedCards[0]
    }
  } while(previousAnswer !== false)
  console.log('Card menu not yet implemented.')
  return true
}

// Short action-oriented menu for cards in the priorities list
// Index is the position of the card in the list that it is in, used for fencepost case to display upboat contextually
async function priorityCardMenu(card, index) {
  if(!card) {
    console.log('priorityCardMenu: card is required.')
    return false
  }
  const taskId = card.taskId
  const memberId = aoEnv('AO_CLI_SESSION_MEMBERID')
  if(!memberId) {
    console.log('Not logged in.')
    return false
  }
  const isChecked = card.claimed.includes(memberId)
  console.log(`\n${headerStyle('Priority: ' + card.name)}`)
  let priorityChoices = []
  if(index != 0) {
    priorityChoices.push({ name: 'Upboat', value: 'upboat', short: 'upboat' })
  }
  priorityChoices.push(
    { name: isChecked ? 'Uncheck' : 'Check off', value: 'check', short: 'check!' },
    { name: 'Downboat', value: 'downboat', short: 'downboat' },
    //{ name: 'Browse within', value: 'browse', short: 'browse' }
    { name: 'Back to Priorities', value: false, short: 'back' }
  )
  const answer = await inquirer.prompt({
    name: 'priority_card_menu',
    type: 'list',
    message: 'Please choose:',
    choices: priorityChoices,
    pageSize: priorityChoices.length,
  })
  switch(answer.priority_card_menu) {
    case 'check':
      if(isChecked) {
        await uncheckCard(taskId)
      } else {
        await completeCard(taskId)
      }
      break
    case 'upboat':
      await prioritizeCard(taskId, memberId)
      return false
    case 'downboat':
      await refocusCard(taskId, memberId)
      return false
    case 'browse':
      break
    default:
      return false
  }
  return true
}

async function subcardsMenu() {
   console.log('Not yet implemented') 
}

async function browseMenu() {
  console.log('Not yet implemented')
}

// Ask the user to create a card, checks if it already exists, and then creates it if it doesn't
async function createCardInteractive(prioritized = true) {
  const memberId = aoEnv('AO_CLI_SESSION_MEMBERID')
  if(!memberId) {
    console.log('Not logged in.')
    return false
  }
  const answer = await inquirer.prompt({
    name: 'new_card_text',
    type: 'input',
    message: 'New card or Enter to end:',
  })
  if(answer.new_card_text.trim().length <= 0) {
    return false
  }
  // Check if the card alerady exists
  const fetchedCards = await getCardByName(answer.new_card_text, false)
  if(fetchedCards && fetchedCards.length >= 1) {
    if(fetchedCards.length >= 2) {
      console.log('More than one copy of this card was found. This should not happen.')
    }
    if(prioritized) {
      console.log('Card already exists, prioritizing.')
      const prioritizeResult = prioritizeCard(fetchedCards[0].taskId, memberId)
      if(!prioritizeResult.ok) {
        console.log('May have failed to prioritize card.')
      }
    }
    return false
  }
  console.log('card does not exist yet. creating...', answer.new_card_text)
  const result = await createCard(answer.new_card_text, false, true)
  return answer.new_card_text
}