context = window
rest = context.JK.Rest()
logger = context.JK.logger

UserStore = context.UserStore

@BookLesson = React.createClass({

  mixins: [
    ICheckMixin,
    Reflux.listenTo(AppStore, "onAppInit"),
    Reflux.listenTo(UserStore, "onUserChanged")
  ]

  onAppInit: (@app) ->
    @app.bindScreen('jamclass/book-lesson',
      {beforeShow: @beforeShow, afterShow: @afterShow, beforeHide: @beforeHide})

  onUserChanged: (userState) ->
    @setState({user: userState?.user})

  checkboxChanged: (e) ->
    checked = $(e.target).is(':checked')

    value = $(e.target).val()

    @setState({ recurring: value })

  componentDidMount: () ->
    @checkboxes = [{selector: 'input.lesson-frequency', stateKey: 'lesson-frequency'}]
    @root = $(@getDOMNode())

    @slot1Date = @root.find('.slot-1 .date-picker')
    @slot2Date = @root.find('.slot-2 .date-picker')
    @slot1Date.datepicker({
      dateFormat: "D M d yy",
      onSelect: ((e) => @toggleDate(e))
    })
    @slot2Date.datepicker({
      dateFormat: "D M d yy",
      onSelect: ((e) => @toggleDate(e))
    })
    @iCheckify()

  componentDidUpdate:() ->
    @iCheckify()
    @slot1Date = @root.find('.slot-1 .date-picker')
    @slot2Date = @root.find('.slot-2 .date-picker')
    @slot1Date.datepicker({
      dateFormat: "D M d yy",
      onSelect: ((e) => @toggleDate(e))
    })
    @slot2Date.datepicker({
      dateFormat: "D M d yy",
      onSelect: ((e) => @toggleDate(e))
    })


  toggleDate: (e) ->

  isNormal: () ->
    @state.type == 'normal'
  
  isTestDrive: () ->
    @state.type == 'test-drive'
    
  parseId:(id) ->
    if !id?
      {id: null, type: null}
    else
      bits = id.split('_')
      if bits.length == 2
        {id: bits[1], type: bits[0]}
      else
        {id: null, type: null}
        
  beforeHide: (e) ->
    logger.debug("BookLesson: beforeHide")
    @resetErrors()

  beforeShow: (e) ->
    logger.debug("BookLesson: beforeShow", e.id)

  afterShow: (e) ->
    logger.debug("BookLesson: afterShow", e.id)

    parsed = @parseId(e.id)
    
    id = parsed.id
    
    @setState({teacherId: id, type: parsed.type})
    @resetErrors()
    rest.getUserDetail({
      id: id,
      show_teacher: true
    }).done((response) => @userDetailDone(response)).fail(@app.ajaxError)

  userDetailDone: (response) ->
    if response.id == @state.teacherId
      @setState({teacher: response, isSelf: response.id == context.JK.currentUserId})
    else
      logger.debug("BookLesson: ignoring teacher details", response.id, @state.teacherId)

  getInitialState: () ->
    {
    user: null,
    teacher: null,
    teacherId: null,
    generalErrors: null,
    descriptionErrors: null,
    bookedPriceErrors: null,
    slot1Errors: null,
    slot2Errors: null
    updating: false,
    recurring: 'single'
    }

  jamclassPolicies: (e) ->
    e.preventDefault()
    context.JK.popExternalLink($(e.target).attr('href'))

  getSlotData: (position) ->
    $slot = @root.find('.slot-' + (position + 1))
    picker = $slot.find('.date-picker')

    hour = $slot.find('.hour').val()
    minute = $slot.find('.minute').val()
    am_pm = $slot.find('.am_pm').val()


    if hour? and hour != ''
      hour = new Number(hour)
      if am_pm == 'PM'
        hour += 12
    else
      hour = null

    if minute? and minute != ''
      minute = new Number(minute)
    else
      minute = null

    if !@isRecurring()
      date = picker.datepicker("getDate")
      if date?
        date = context.JK.formatDateYYYYMMDD(date)
    else
      day_of_week = $slot.find('.day_of_week').val()


    {hour: hour, minute: minute, date: date, day_of_week: day_of_week}

  resetErrors: () ->
    @setState({generalErrors: null, slot1Errors: null, slot2Errors: null, descriptionErrors: null, bookedPriceErrors: null})

  isRecurring: () ->
    @state.recurring == 'recurring'

  isMonthly: () ->
    if !@isRecurring()
      return false

    parsed = @bookingOption()
    return parsed? && parsed.frequency == 'monthly'

  bookingOption: () ->
    select = @root.find('.booking-options-for-teacher')
    value = select.val()
    @parseBookingOption(value)

  # select format = frequency|lesson_length , where frequency is 'monthly' or 'weekly'
  parseBookingOption: (value) ->
    if !value?
      return null
    bits = value.split('|')
    if !bits? || bits.length != 2
      return null
    return {frequency: bits[0], lesson_length: bits[1]}


  onBookLesson: (e) ->
    e.preventDefault()

    if $(e.target).is('.disabled')
      return

    options = {}
    options.teacher = this.state.teacher.id

    options.slots = [@getSlotData(0), @getSlotData(1)]
    options.timezone = window.jstz.determine().name()
    description = @root.find('textarea.user-description').val()
    if description == ''
      description == null
    options.description = description

    if @isTestDrive()
      options.payment_style = 'elsewhere'
      options.lesson_type = 'test-drive'

    else if @isNormal()
      options.lesson_type = 'paid'
      if @isRecurring()
        if @isMonthly()
          options.payment_style = 'monthly'
        else
          options.payment_style = 'weekly'
      else
        options.payment_style = 'single'

      options.recurring = @isRecurring()
      parsed = @bookingOption()
      if parsed?
        options.lesson_length = parsed.lesson_length


    else
      throw "Unable to determine lesson type"

    @resetErrors()
    @setState({updating: true})
    rest.bookLesson(options).done((response) => @booked(response)).fail((jqXHR) => @failedBooking(jqXHR))

  booked: (response) ->
    @setState({updating: false})
    if response.user['has_stored_credit_card?']
      context.location ="/client#/jamclass/lesson-session/" + response.id
    else
      context.location = '/client#/jamclass/payment'

  failedBooking: (jqXHR) ->
    @setState({updating: false})
    if jqXHR.status == 422
      body = JSON.parse(jqXHR.responseText)

      generalErrors = {errors: {}}
      for errorType, errors of body.errors
        if errorType == 'description'
          @setState({descriptionErrors: errors})
        else if errorType == 'booked_price'
          @setState({bookedPriceErrors: errors})
        else if errorType == 'lesson_length'
          # swallow, because 'booked_price' covers this
        else if errorType == 'lesson_booking_slots'
          # do nothing.  these are handled better by the _children errors
        else
          generalErrors.errors[errorType] = errors

      for childErrorType, childErrors of body._children
        if childErrorType == 'lesson_booking_slots'
          slot1Errors = childErrors[0]
          slot2Errors = childErrors[1]
          if Object.keys(slot1Errors["errors"]).length > 0
            @setState({slot1Errors: slot1Errors})
          if Object.keys(slot2Errors["errors"]).length > 0
            @setState({slot2Errors: slot2Errors})
      if Object.keys(generalErrors.errors).length > 0
        @setState({generalErrors: generalErrors})

  onCancel: (e) ->
    e.preventDefault()

  isTestDrive: () ->
    @state.type == 'test-drive'

  isNormal: () ->
    @state.type == 'normal'

  constructBookingOptions: () ->
    results = []
    if !@state.teacher?
      return results

    teacher = @state.teacher.teacher
    enabledMinutes = []
    for minutes in [30, 45, 60, 90, 120]
      duration_enabled = teacher["lesson_duration_#{minutes}"]

      if duration_enabled
        enabledMinutes.push(minutes)

    if !@isRecurring()
      for minutes in enabledMinutes
        lesson_price = teacher["price_per_lesson_#{minutes}_cents"]
        value = "single|#{minutes}"
        display = "#{minutes} Minute Lesson for $#{(lesson_price / 100).toFixed(2)}"
        results.push(`<option value={value}>{display}</option>`)
    else
      for minutes in enabledMinutes
        lesson_price = teacher["price_per_lesson_#{minutes}_cents"]
        value = "single|#{minutes}"
        display = "#{minutes} Minute Lesson Each Week - $#{(lesson_price / 100).toFixed(2)} Per Week"
        results.push(`<option value={value}>{display}</option>`)


      for minutes in enabledMinutes
        monthly_price = teacher["price_per_month_#{minutes}_cents"]
        value = "monthly|#{minutes}"
        display  = "#{minutes} Minute Lesson Each Week - $#{(monthly_price / 100).toFixed(2)} Per Month"
        results.push(`<option value={value}>{display}</option>`)

    if results.length == 0
      results.push(`<option value=''>This teacher has no pricing options</option>`)
    else
      results.unshift(`<option value=''>Please choose an option...</option>`)
    results

  render: () ->
    photo_url = teacher?.photo_url
    if !photo_url?
      photo_url = '/assets/shared/avatar_generic.png'

    teacher = @state.teacher

    if teacher?
      name = `<div className="teacher-name">{teacher.name}</div>`
      teacher_first_name = teacher.first_name
    else
      name = `<div className="teacher-name">Loading...</div>`
      teacher_first_name = '...'

    hours = []
    for hour in ['01', '02', '03', '04', '05', '06', '07', '08', '09', '10', '11', '12']
      if hour == '12'
        key = '00'
      else
        key = hour
      hours.push(`<option key={key} value={key}>{hour}</option>`)

    minutes = []
    for minute in ['00', '15', '30', '45']
      minutes.push(`<option key={minute} value={minute}>{minute}</option>`)

    am_pm = [`<option key="AM" value="AM">AM</option>`, `<option key="PM" value="PM">PM</option>`]

    bookLessonClasses = classNames({"button-orange": true, disabled: !this.state.teacher? && !@state.updating})
    cancelClasses = classNames({"button-grey": true, disabled: !this.state.teacher? && !@state.updating})

    descriptionErrors = context.JK.reactSingleFieldErrors('description', @state.descriptionErrors)
    bookedPriceErrors = context.JK.reactSingleFieldErrors('booked_price', @state.bookedPriceErrors)
    slot1Errors = context.JK.reactErrors(@state.slot1Errors, {preferred_day: 'Date', day_of_week: 'Day'})
    slot2Errors = context.JK.reactErrors(@state.slot2Errors, {preferred_day: 'Date', day_of_week: 'Day'})
    generalErrors = context.JK.reactErrors(@state.generalErrors, {user: 'You'})

    bookedPriceClasses = classNames({booked_price: true, error: bookedPriceErrors?, field: true, 'booking-options': true})
    descriptionClasses = classNames({description: true, error: descriptionErrors?})
    slot1Classes = classNames({slot: true, 'slot-1': true, error: slot1Errors?})
    slot2Classes = classNames({slot: true, 'slot-2': true, error: slot2Errors?})
    generalClasses = classNames({general: true, error: generalErrors?})


    if !@isRecurring()
      slots =
        `<div className="slots">
          <div className={slot1Classes}>
            <div className="slot-prompt">What date/time do you prefer for your lesson?</div>
            <div className="field date">
              <label>Date:</label>

              <input className="date-picker" type="text" data-slot="1"></input>
            </div>
            <div className="field time">
              <label>Time:</label>
              <select className="hour">{hours}</select> : <select className="minute">{minutes}</select> <select
              className="am_pm">{am_pm}</select>
            </div>
            {slot1Errors}
          </div>
          <div className={slot2Classes}>
            <div className="slot-prompt">What is a second date/time option if preferred not available?</div>
            <div className="field date">
              <label>Date:</label>

              <input className="date-picker" type="text" data-slot="2"></input>
            </div>
            <div className="field time">
              <label>Time:</label>
              <select className="hour">{hours}</select> : <select className="minute">{minutes}</select> <select
              className="am_pm">{am_pm}</select>
            </div>
            {slot2Errors}
          </div>
        </div>`
    else
      days = []
      days.push(`<option value=''>Choose a day of the week...</option>`)
      days.push(`<option value="0">Sunday</option>`)
      days.push(`<option value="1">Monday</option>`)
      days.push(`<option value="2">Tuesday</option>`)
      days.push(`<option value="3">Wednesday</option>`)
      days.push(`<option value="4">Thursday</option>`)
      days.push(`<option value="5">Friday</option>`)
      days.push(`<option value="6">Saturday</option>`)


      slots =
        `<div className="slots">
          <div className={slot1Classes}>
            <div className="slot-prompt">What day/time do you prefer for your lesson?</div>
            <div className="field date">
              <label>Day:</label>

              <select className="day_of_week" data-slot="1">{days}</select>
            </div>
            <div className="field time">
              <label>Time:</label>
              <select className="hour">{hours}</select> : <select className="minute">{minutes}</select> <select
              className="am_pm">{am_pm}</select>
            </div>
            {slot1Errors}
          </div>
          <div className={slot2Classes}>
            <div className="slot-prompt">What is a second day/time option if preferred not available?</div>
            <div className="field date">
              <label>Day:</label>

              <select className="day_of_week" data-slot="2">{days}</select>
            </div>
            <div className="field time">
              <label>Time:</label>
              <select className="hour">{hours}</select> : <select className="minute">{minutes}</select> <select
              className="am_pm">{am_pm}</select>
            </div>
            {slot2Errors}
          </div>
        </div>`


    if @isTestDrive()
      header = `<h2>book testdrive lesson</h2>`
      if @state.user?.remaining_test_drives == 1
        testDriveLessons = "1 TestDrive lesson credit"
      else
        testDriveLessons = "#{this.state.user?.remaining_test_drives} TestDrive lesson credits"

      actions = `<div className="actions left">
        <a className={cancelClasses} onClick={this.onCancel}>CANCEL</a>
        <a className={bookLessonClasses} onClick={this.onBookLesson}>BOOK TESTDRIVE LESSON</a>
      </div>`

      columnLeft = `<div className="column column-left">
        {header}
        {slots}
        <div className={descriptionClasses}>
          <div className="description-prompt">Tell {teacher_first_name} a little about yourself as a student.</div>
          <textarea className="user-description" defaultValue=""/>
          {descriptionErrors}
        </div>
        {actions}
        <br className="clearall"/>
        <div className={generalClasses}>
          {generalErrors}
        </div>
      </div>`

      columnRight = `<div className="column column-right">
        <div className="teacher-header">
          <div className="avatar">
            <img src={photo_url}/>
          </div>
          {name}
        </div>
        <div className="booking-info">
          <p>You are purchasing a single 30-minute TestDrive session.</p>

          <p>You currently have {testDriveLessons} available.   If you need to cancel, you must cancel at least 24 hours before the lesson is scheduled to start, or you will be charged 1 TestDrive lesson credit.<br/>

            <div className="jamclass-policies"><a href="/corp/terms" rel="external" onClick={this.jamclassPolicies}>jamclass
              policies</a></div>
          </p>
        </div>
      </div>`

    else if @isNormal()
      bookingOptionsForTeacher = @constructBookingOptions()
      header = `<h2>book a lesson with {teacher_first_name}</h2>`
      outActions = `<div className="actions right ">
        <a className={cancelClasses} onClick={this.onCancel}>CANCEL</a>
        <a className={bookLessonClasses} onClick={this.onBookLesson}>BOOK LESSON</a>
      </div>`

      columnLeft = `<div className="column column-left">
        {header}
        <div className="lesson-frequency">
          <div className="field lesson-frequency lesson-frequency-single">
            <input type="radio" name="lesson-frequency" value="single" checked={!this.isRecurring()}/><label htmlFor="lesson-frequency">A single lesson</label>
          </div>
          <div className="field lesson-frequency lesson-frequency-recurring">
            <input type="radio" name="lesson-frequency" value="recurring" checked={this.isRecurring()}/><label htmlFor="lesson-frequency">A series of recurring weekly lessons</label>
          </div>
        </div>
        <div className={bookedPriceClasses}>
          <label>What lesson length and payment option do you prefer?</label>
          <select name="booking-options-for-teacher" className="booking-options-for-teacher">{bookingOptionsForTeacher}</select>
          {bookedPriceErrors}
          </div>
        <div className={descriptionClasses}>
          <div className="description-prompt">Tell {teacher_first_name} a little about yourself as a student.</div>
          <textarea className="user-description" defaultValue=""/>
          {descriptionErrors}
        </div>
      </div>`

      columnRight =
        `<div className="column column-right">
          {slots}
          <br className="clearall"/>
          <div className={generalClasses}>
            {generalErrors}
          </div>
        </div>`

    `<div className="content-body-scroller">
      <div className="lesson-booking">
        {columnLeft}
        {columnRight}
        <br className="clearall"/>
        {outActions}
        <br className="clearall"/>
      </div>
    </div>`


})