from ._builtin import Page, WaitPage
from otree.api import Currency as c, currency_range
from .models import Constants, levenshtein, distance_and_ok
from django.conf import settings


class Transcribe(Page):
    timeout_seconds = 3
    form_model = 'player'
    form_fields = ['transcribed_text']

    def vars_for_template(self):

        return {
            'image_path': 'real_effort/paragraphs/{}.png'.format(
                self.round_number),
            'reference_text': Constants.reference_texts[self.round_number - 1],
            #'debug': settings.DEBUG,
            #'required_accuracy': 100 * (1 - Constants.allowed_error_rates[self.round_number - 1])
        }

    def transcribed_text_error_message(self, transcribed_text):
        reference_text = Constants.reference_texts[self.round_number - 1]
        allowed_error_rate = Constants.allowed_error_rates[
            self.round_number - 1]
        distance, ok = distance_and_ok(transcribed_text, reference_text,
                                       allowed_error_rate)
        #if ok:
        self.player.levenshtein_distance = distance

        #else:
        #    if allowed_error_rate == 0:
        #        return "The transcription should be exactly the same as on the image."
        #    else:
        #        return "This transcription appears to contain too many errors."



class Results(Page):
    # def is_displayed(self):
    #     return self.round_number == Constants.num_rounds


    def vars_for_template(self):
        error = self.player.levenshtein_distance/len(Constants.reference_texts[self.round_number - 1])
        if error < 0.1:
            self.player.grade = "A"
            self.player.init_payoff = 20
        elif error < 0.2:
            self.player.grade = "B"
            self.player.init_payoff = 15
        elif error < 0.3:
            self.player.grade = "C"
            self.player.init_payoff = 10
        elif error < 0.4:
            self.player.grade = "D"
            self.player.init_payoff = 5
        else:
            self.player.grade = "F"
            self.player.init_payoff = 0

        return {'grade': self.player.grade,
                'init_payoff': self.player.init_payoff,
                }

    # def vars_for_template(self):
    #     table_rows = []
    #
    #     for prev_player in self.player.in_all_rounds():
    #         row = {
    #             'round_number': prev_player.round_number,
    #             'reference_text_length': len(Constants.reference_texts[prev_player.round_number - 1]),
    #             'transcribed_text_length': len(prev_player.transcribed_text),
    #             'distance': prev_player.levenshtein_distance,
    #         }
    #
    #
    #         table_rows.append(row)
    #
    #     return {'table_rows': table_rows}


page_sequence = [Transcribe, Results]