import React from 'react'           // React to manage the GUI
import Player from './classes/player'
import Match from './classes/match'
import PlayerList from './playerList'       // Everything that has to do with players
import MatchList from './matchList'         // Everything that has to do with matches
import Excel from './excel'         // Helper files to create Excel files
import { date2s, time2s } from './helpers'
import 'bootstrap/dist/css/bootstrap.css'
import EmailList from './lists/components/EmailList'
import PhoneList from './lists/components/PhoneList'

/**
 * General Application Design
 *
 * 4 Components:
 * - PlayerList (representing the PlayerList Excel file)
 * - Calendar (representing the Calendar Excel file)
 * - MatchList (representing the Spielliste Excel file)
 * - PaymentList (representing the Zahlliste Excel file)
 *
 * PlayerList
 * - Shows the relevant information from the file
 * - Shows calculated information from combination with Calendar
 * - Points out potential problems
 * - Allows access to player information
 *
 * Calendar
 * - Shows the relevant information from the file
 * - Shows calculated information from combination with PlayerList
 * - Points out potential problems
 * - Allows access to match information
 *
 * MatchList
 * - Shows the calculated match lists
 * - Points out problems
 *
 * PaymentList
 * - Shows the calculated payment lists
 * - Points out problems
 *
 */

const FILTER_OFF = 'Alle'

/** Main application */
class Main extends React.Component {
  /**
   * Constructor
   * Defines the state and binds all 'this' in all functions to the object.
   */
  constructor () {
    super()

    // Bind 'this' to functions
    this.handlePlayerList = this.handlePlayerList.bind(this)
    this.handleCalendar = this.handleCalendar.bind(this)
    this.generatePlayerList = this.generatePlayerList.bind(this)
    this.generateCalendar = this.generateCalendar.bind(this)
    this.filterMatches = this.filterMatches.bind(this)
    this.filterPlayers = this.filterPlayers.bind(this)
    this.generateSchedule = this.generateSchedule.bind(this)
    this.generatePayTable = this.generatePayTable.bind(this)
    this.generatePhoneList = this.generatePhoneList.bind(this)
  }

  calculateMatchFilters () {
    const dates = {}
    const places = []
    const categories = []
    this.state.match.matches.forEach((item) => {
      const dateString = date2s(item.Datum)
      if (!!item.Datum & !dates.hasOwnProperty(dateString)) {
        dates[dateString] = item.Datum
      }
      if (!!item.Ort & !places.includes(item.Ort)) {
        places.push(item.Ort)
      }
      if (!!item.Konkurrenz & !categories.includes(item.Konkurrenz)) {
        categories.push(item.Konkurrenz)
      }
    })
    const match = { ...this.state.match, dates, places, categories }
    this.setState({ match })
  }

  calculatePlayerFilters () {
    const categories = []
    this.state.player.players.forEach((item) => {
      if (!!item.Konkurrenz & !categories.includes(item.Konkurrenz)) {
        categories.push(item.Ort)
      }
    })
    const player = { ...this.state.player, categories }
    this.setState({ player })
  }

  handlePlayerList (event) {
    const file = this.playerList.files[0]
    Excel.readWorkbook(file, this.generatePlayerList)
  }

  handleCalendar (event) {
    const file = this.calendar.files[0]
    Excel.readWorkbook(file, this.generateCalendar)
  }

  generatePlayerList (worksheet) {
    console.log('About to read the player list.')
    const worksheets = { ...this.state.worksheets }
    worksheets['PlayerList'] = worksheet
    this.setState({ worksheets })

    if (worksheet[4].length !== 32 & worksheet[3][0] !== 'Konkurrenz' & worksheet[3][31] !== 'bezahlt') {
      throw Error('Wrong file structure.')
    }
    const players = worksheet.slice(4, worksheet.length).map((playerData) => new Player.Player(playerData))
    const player = { ...this.state.player }
    player.players = players
    this.setState({ player })
    this.calculatePayDate()
    this.filterPlayers()
    console.log('State after generating player list:', this.state)
  }

  generateCalendar (worksheet) {
    console.log('About to read the calendar.')
    const worksheets = { ...this.state.worksheets }
    worksheets['Calendar'] = worksheet
    this.setState({ worksheets })

    if (worksheet[2].length < 8 | worksheet[2].length > 9) {
      throw Error('Wrong file structure.')
    }
    const matches = worksheet.slice(2, worksheet.length).map((matchData) => new Match.MatchClass(matchData))
    const match = { ...this.state.match }
    match.matches = matches
    this.setState({ match })
    this.calculateMatchFilters()
    this.calculatePayDate()
    this.filterMatches()
    console.log('State after generating calendar:', this.state)
  }

  filterMatches () {
    const filters = {
      date: this.matchDate.value !== FILTER_OFF ? this.matchDate.value : null,
      place: this.matchPlace.value !== FILTER_OFF ? this.matchPlace.value : null,
      category: this.matchCategory.value !== FILTER_OFF ? this.matchCategory.value : null
    }
    console.log('New filter settings:', filters)

    const match = { ...this.state.match }
    match.filtered = match.matches.filter((match) => {
      const matchDate = new Date(match.Datum)
      matchDate.setHours(0, 0, 0, 0)
      const filtDate = new Date(filters.date)
      filtDate.setHours(0, 0, 0, 0)
      return (!filters.date | matchDate.getTime() === filtDate.getTime()) &
      (!filters.place | filters.place === match.Ort) &
      (!filters.category | filters.category === match.Konkurrenz)
    })
    this.setState({ match })

    const player = { ...this.state.player, filters }
    player.filtered = player.players
    this.setState({ player })
  }

  filterPlayers () {
    const filters = {
      junior: this.playerJunior.checked,
      paid: this.playerPaid.checked,
      category: this.playerCategory.value !== FILTER_OFF ? this.playerCategory.value : null
    }
    console.log('New filter settings:', filters)

    const player = { ...this.state.player, filters }
    player.filtered = player.players
    this.setState({ player })
  }

  generateSchedule (event) {
    event.preventDefault()

    const matchlist = new Excel.Workbook()
    matchlist.SheetNames = []
    matchlist.Sheets = {}

    const worksheets = {}

    let placeArray = this.state.match.places
    if (placeArray.length > 1) {
      placeArray = placeArray.concat([FILTER_OFF])
    }
    const date = Object.keys(this.state.match.dates).find((key) =>
      String(this.state.match.dates[key]) === this.matchDate.value
    )

    placeArray.forEach(place => {
      let header = [
        ['Stadtzürcher Tennismeisterschaft'],
        [`Spielplan für den ${date} (${place})`],
        [],
        ['Ort', 'Zeit', 'Kategorie', 'Spieler 1', '', 'Spieler 2', '', '1. Satz', '2. Satz', '3. Satz', 'WO Grund']
      ]
      let matchListPerPlace = this.state.match.filtered.filter((match) => (match.Ort === place | place === FILTER_OFF)).map((match) =>
        [match.Ort, time2s(match.Datum), match.Konkurrenz, match.Spieler1, match.Spieler1Klassierung, match.Spieler2, match.Spieler2Klassierung]
      )
      console.log('Generated match list per place:', matchListPerPlace)
      worksheets[place] = Excel.SheetFromArray(header.concat(matchListPerPlace))
      matchlist.SheetNames.push(place)
      matchlist.Sheets[place] = worksheets[place]
    })

    Excel.saveAs(matchlist, 'Spielliste.xlsx')
  }

  generatePhoneList (event) {
    event.preventDefault()

    const phoneMail = new Excel.Workbook()
    phoneMail.SheetNames = []
    phoneMail.Sheets = {}

    const dataList = [
      ['Vorname', 'Nachname', 'Anrede', 'Geschlecht', 'Handy', 'E-Mail']
    ]
    const phonePot = []

    const players = this.state.player.filtered
    players.forEach(player => {
      if (!player.phone.match(/^FEHLER/) && !phonePot.includes(player.phone)) {
        phonePot.push(player.phone)
        dataList.push([
          player.Vorname,
          player.Name,
          2,
          player.geschlecht === 'w' ? 2 : 1,
          player.phone
        ])
      }
    })
    phoneMail.Sheets['Sheet1'] = Excel.SheetFromArray(dataList)
    phoneMail.SheetNames.push('Sheet1')
    Excel.saveAs(phoneMail, 'Telefon.xlsx')
  }

  calculatePayDate () {
    if ((this.state.player.players.length === 0) | (this.state.match.matches.length === 0)) {
      return
    }

    this.state.match.matches.forEach((match) => {
      [match.Spieler1, match.Spieler2].forEach((matchPlayer) => {
        if (matchPlayer) {
          let foundPlayer = this.state.player.players.find((player) =>
            (player.name === matchPlayer) & (player.Konkurrenz === match.Konkurrenz)
          )
          if (!foundPlayer) {
            console.log('Debug payerlist:', foundPlayer, match)
            throw Error('Match player not found in player list. This is an error!')
          }
          if (!foundPlayer.BezahltAm) {
            foundPlayer.BezahltAm = match.Datum
          }
        }
      })
    })
  }

  generatePayTable (event) {
    event.preventDefault()

    const paylist = new Excel.Workbook()
    paylist.SheetNames = []
    paylist.Sheets = {}

    const worksheets = {}

    let placeArray = this.state.match.places
    /* if (placeArray.length > 1) {
      placeArray = placeArray.concat([FILTER_OFF])
    } */
    const date = Object.keys(this.state.match.dates).find((key) =>
      String(this.state.match.dates[key]) === this.matchDate.value
    )

    placeArray.forEach((place) => {
      let header = [
        ['Stadtzürcher Tennismeisterschaft'],
        [`Nenngelder für ${date}`],
        [],
        [`${place}`, null, '50.- oder 30.- (Junioren Jg. 1999 oder jünger)'],
        [],
        ['bereits bez.', 'Kat.', 'Zeit', 'Name', 'Betrag bez.', 'Quittung abgeben']
      ]

      // Per place
      let payListPerPlace = []
      this.state.match.filtered.forEach((match) => {
        [match.Spieler1, match.Spieler2].forEach((matchPlayer) => {
          if (!!matchPlayer & (match.Ort === place | FILTER_OFF === place)) {
            const player = this.state.player.players.find((player) =>
              (player.Konkurrenz === match.Konkurrenz) & (player.name === matchPlayer)
            )
            let paid = null
            if (player.BezahltAm < this.matchDate.value) {
              paid = date2s(player.BezahltAm)
            }
            if (player.Bezahlt) {
              paid = 'OK'
            }
            let price
            if (player.isDoubles) {
              price = (player.isJunior ? 15 : 25) + (player.isJuniorDP ? 15 : 25)
            } else {
              price = player.isJunior ? 30 : 50
            }
            payListPerPlace.push([ paid, match.Konkurrenz, time2s(match.Datum), `${matchPlayer} (${price}.-)` ])
          }
        })
      })

      let footer = [
        [],
        ['Datum'],
        ['Turnierleiter', null, null, 'Kassierer'],
        ['Betrag von Spielern erhalten', null, null, 'Betrag von Turnierleiter erhalten']
      ]
      console.log(`Generated pay list per place ${place}:`, payListPerPlace)
      worksheets[place] = Excel.SheetFromArray(header.concat(payListPerPlace, footer))
      paylist.SheetNames.push(place)
      paylist.Sheets[place] = worksheets[place]
    })

    let payListPerPlace = []
    this.state.match.filtered.forEach((match) => {
      [match.Spieler1, match.Spieler2].forEach((matchPlayer) => {
        if (matchPlayer) {
          const player = this.state.player.players.find((player) =>
            (player.Konkurrenz === match.Konkurrenz) & (player.name === matchPlayer)
          )
          let price
          if (player.isDoubles) {
            price = (player.isJunior ? 15 : 25) + (player.isJuniorDP ? 15 : 25)
          } else {
            price = player.isJunior ? 30 : 50
          }
          payListPerPlace.push([ match.Ort, match.Konkurrenz, `${matchPlayer} (${price}.-)` ])
        }
      })
    })
    console.log(`Generated pay list for "Alle":`, payListPerPlace)
    worksheets[FILTER_OFF] = Excel.SheetFromArray(payListPerPlace)
    paylist.SheetNames.push(FILTER_OFF)
    paylist.Sheets[FILTER_OFF] = worksheets[FILTER_OFF]

    Excel.saveAs(paylist, 'Zahlliste.xlsx')
  }

  render () {
    const places = this.props.matchList.places || []
    const dates = this.props.matchList.dates || {}
    const matchCategories = this.props.matchList.categories || []
    const playerCategories = this.props.playerList.categories || []

    return (
      <div className='container'>
        <form>
          <label htmlFor='PlayerList'>Swisstennis PlayerList.xls</label>
          <input type='file' id='PlayerList' ref={(input) => { this.playerList = input }} accept='.xls' placeholder='PlayerList File' onChange={this.handlePlayerList} />
          <label htmlFor='Calendar'>Swisstennis Calendar.xls</label>
          <input type='file' id='Calendar' ref={(input) => { this.calendar = input }} accept='.xls' placeholder='Calendar File' onChange={this.handleCalendar} />
          <label htmlFor='Date'>Datum</label>
          <select id='Date' ref={(input) => { this.matchDate = input }} onChange={this.filterMatches}>
            <option>{FILTER_OFF}</option>
            {Object.keys(dates).map((key) => (
              <option key={key} value={dates[key]}>{key}</option>
            ))}
          </select>
          <label htmlFor='Place'>Ort</label>
          <select id='Place' ref={(input) => { this.matchPlace = input }} onChange={this.filterMatches}>
            <option>{FILTER_OFF}</option>
            {places.map((place, key) => (
              <option key={key}>{place}</option>
            ))}
          </select>
          <label htmlFor='MatchCategory'>Match Konkurrenz</label>
          <select id='MatchCategory' ref={(input) => { this.matchCategory = input }} onChange={this.filterMatches}>
            <option>{FILTER_OFF}</option>
            {matchCategories.map((category, key) => (
              <option key={key}>{category}</option>
            ))}
          </select>
          <label htmlFor='Junior'>Junior</label>
          <input id='Junior' ref={(input) => { this.playerJunior = input }} type='checkbox' onChange={this.filterPlayers} />
          <label htmlFor='Paid'>Bezahlt</label>
          <input id='Paid' ref={(input) => { this.playerPaid = input }} type='checkbox' onChange={this.filterPlayers} />
          <label htmlFor='PlayerCategory'>Spieler Konkurrenz</label>
          <select id='PlayerCategory' ref={(input) => { this.playerCategory = input }} onChange={this.filterPlayers}>
            <option>{FILTER_OFF}</option>
            {playerCategories.map((category, key) => (
              <option key={key}>{category}</option>
            ))}
          </select>
          <button onClick={this.generateSchedule} disabled={!this.props.matchList.filteredMatches.length}>Spielliste generieren</button>
          <button onClick={this.generatePayTable} disabled={(!this.props.matchList.filteredMatches.length | !this.props.playerList.filteredPlayers.length)}>Zahlliste generieren</button>
          <button onClick={this.generatePhoneList} disabled={!this.props.playerList.allPlayers.length}>Telefonliste generieren</button>
        </form>
        <MatchList match={this.props.matchList} />
        <PhoneList filtered={this.props.matchList.filteredMatches} players={this.props.playerList.allPlayers} />
        <EmailList filtered={this.props.matchList.filteredMatches} players={this.props.playerList.allPlayers} />
        <PlayerList player={this.props.playerList} />
      </div>
    )
  }
}

export default Main