from otree.api import *
from decimal import *

author = "Nathaniel Archer Lawrence, LEMMA, Université Panthéon-Assas - Paris II"
doc = """
Consumption simulation with interface based off of 'Shopping app (online grocery store)' from oTree demos,
see: <https://s3.amazonaws.com/otreehub/browsable_source/d7188187-cdba-4c61-ae3a-d7cc3d6fcde9/shop/index.html>.
"""


def read_csv():
    import csv

    f = open(__name__ + '/catalog.csv', encoding='utf-8-sig')
    rows = [row for row in csv.DictReader(f)]
    for row in rows:
        # all values in CSV are string unless you convert them
        row['unit_price'] = cu(row['unit_price'])
    return rows

def read_csv_inflation():
    import csv
    f = open(__name__ + '/animal_spirits_120.csv', encoding='utf-8-sig')
    rows = [row for row in csv.DictReader(f)]
    for row in rows:
        # all values in CSV are string unless you convert them
        row['rate'] = float(row['rate']) / 12 # convert from the annualized rate
        row['period'] = int(row['period'])
    return rows

class C(BaseConstants):
    NAME_IN_URL = 'shop120_annualized'
    PLAYERS_PER_GROUP = None
    NUM_ROUNDS = 120

    # consumption constants
    INITIAL_ENDOWMENT = 120
    INCOME = 3.99
    INTEREST_RATE = 0.1/12
    CONSUMPTION_RATE = 1 # amount of good consumed from stock balance each period
    MONETARY_POLICY = 0

    # inflation parameters from csv
    INFLATION = read_csv_inflation()
    # period = ID in dict
    INFLATION_DICT = {row['period']: row for row in INFLATION}
    
    # list of products taken from csv file
    PRODUCTS = read_csv()
    # SKU = 'stock keeping unit' = product ID
    PRODUCTS_DICT = {row['sku']: row for row in PRODUCTS}

class Subsession(BaseSubsession):
    def creating_session(self):
        if self.player.round_number > 1:
            print("PRODUCTS_DICT[Unit price] * 2: ", (C.PRODUCTS_DICT['1']['unit_price'] * 2))
        else:
            print("PRODUCTS_DICT[Unit price]: ", (C.PRODUCTS_DICT['1']['unit_price']))

class Group(BaseGroup):
    pass

class Player(BasePlayer):
    total_price = models.CurrencyField(initial=0)
    initial_savings = models.CurrencyField(initial=0)
    cashOnHand = models.CurrencyField(initial=0)
    finalSavings = models.CurrencyField(initial=0)
    finalStock = models.IntegerField(initial=0)
    interestEarned = models.CurrencyField(initial=0)
    decision = models.LongStringField(initial='')
    newPrice = models.FloatField(initial=C.PRODUCTS_DICT['1']['unit_price'])

    # Response time
    responseTime = models.FloatField(initial=0)

    # Choice confidence
    current_choiceConfidence = models.IntegerField(
        choices = [[1,'1 – Not at all confident to have made the right decision'],[2,'2'],[3,'3'],[4,'4'],[5,'5 – Absolutely confident to have made the right decision']],
        label='How confident are you that you made the right decision this period?',
        widget=widgets.RadioSelect
    )
    # previous_choiceConfidence = models.IntegerField(
    #     choices = [[1,'1 – Not at all confident to have made the right decision'],[2,'2'],[3,'3'],[4,'4'],[5,'5 – Absolutely confident to have made the right decision']],
    #     label='How confident are you with your decision in the previous period?',
    #     widget=widgets.RadioSelect
    # )

    # Inflation estimates
    inf = models.FloatField()

class Item(ExtraModel):
    player = models.Link(Player)
    sku = models.StringField()
    name = models.StringField()
    quantity = models.IntegerField()
    unit_price = models.CurrencyField()
    newPrice = models.FloatField()

# Calculate total price of item with quantity selected
def total_price(item: Item):
    return item.quantity * item.unit_price

# Convert information about items into a dictionary
def to_dict(item: Item):
    return dict(
        sku=item.sku, name=item.name, quantity=item.quantity, total_price=total_price(item)
    )

# Send info to HTML
def live_method(player: Player, data):

    import json # to convert dict to json
    
    print("Round number: ", player.round_number)
    print("player new price csv: ", player.newPrice)

    if player.round_number == 1:
        player.newPrice = float(C.PRODUCTS_DICT['1']['unit_price'] * (1+C.INFLATION_DICT[player.round_number]['rate']))
        if 'sku' in data:
            sku = data['sku']
            delta = data['delta']
            product = C.PRODUCTS_DICT[sku]
            matches = Item.filter(player=player, sku=sku)
            if matches:
                [item] = matches
                item.quantity += delta
                if item.quantity <= 0:
                    item.delete()
            else:
                if delta > 0:
                    Item.create(
                        player=player,
                        quantity=delta,
                        sku=sku,
                        name=product['name'],
                        unit_price=player.newPrice
                    )

        items = Item.filter(player=player)
        item_dicts = [to_dict(item) for item in items]
        player.total_price = sum([total_price(item) for item in items])
        player.initial_savings = C.INITIAL_ENDOWMENT
        player.cashOnHand = player.initial_savings + C.INCOME
        player.finalSavings = player.cashOnHand - player.total_price
        player.finalStock = sum([item.quantity for item in items]) - C.CONSUMPTION_RATE
        player.interestEarned = 0
        player.newPrice = player.newPrice

    else:

        player.newPrice = player.in_round(player.round_number - 1).newPrice * (1+C.INFLATION_DICT[player.round_number]['rate'])
      
        # allows subject to add and remove from shopping cart
        if 'sku' in data:
            sku = data['sku']
            delta = data['delta']
            product = C.PRODUCTS_DICT[sku]
            matches = Item.filter(player=player, sku=sku)
            if matches:
                [item] = matches
                item.quantity += delta
                if item.quantity <= 0:
                    item.delete()
            else:
                if delta > 0:
                    Item.create(
                        player=player,
                        quantity=delta,
                        sku=sku,
                        name=product['name'],
                        unit_price=player.newPrice
                    )
                
        items = Item.filter(player=player)
        item_dicts = [to_dict(item) for item in items]
        player.total_price = sum([total_price(item) for item in items])
        player.initial_savings = player.in_round(player.round_number - 1).finalSavings * (1 + (C.INTEREST_RATE + (C.MONETARY_POLICY * C.INFLATION_DICT[player.round_number - 1]['rate']))) # fetch previous period's final savings
        print("inflation rate: ", C.INFLATION_DICT[player.round_number]['rate'])
        player.cashOnHand = player.initial_savings + C.INCOME
        player.finalSavings = player.cashOnHand - player.total_price
        player.finalStock = player.in_round(player.round_number - 1).finalStock + sum([item.quantity for item in items]) - C.CONSUMPTION_RATE # fetch previous period's final stock
        player.interestEarned = player.in_round(player.round_number - 1).finalSavings * (C.INTEREST_RATE + (C.MONETARY_POLICY * C.INFLATION_DICT[player.round_number - 1]['rate']))

    player.decision = json.dumps({"item":[item.sku for item in items],"quantity":[item.quantity for item in items],"price":[float(item.unit_price) for item in items]})      
    print('Current player decision: ', player.decision)
    print('Player new price: ', player.newPrice)   
    
    return {
        player.id_in_group: dict(
            items=item_dicts,
            total_price=player.total_price,
            initial_savings=player.initial_savings,
            interestEarned=player.interestEarned,
            cashOnHand=player.cashOnHand,
            finalSavings=player.finalSavings,
            finalStock=player.finalStock,
            decision=player.decision,
            newPrice=player.newPrice
            )
        }

# PAGES
class MyPage(Page):
    live_method = live_method
    form_model = 'player'
    form_fields = ['responseTime']

    @staticmethod
    def error_message(player, value):
        if player.finalSavings < 0:
            return 'Your do not have sufficient Total Cash to complete this purchase.'


# ### Choice confidence quesiton for period 1 should only ask about current decision
# class Results_1(Page):
#     form_model = 'player'
#     form_fields = ['current_choiceConfidence']

#     @staticmethod
#     def vars_for_template(player: Player):
#         return dict(items=Item.filter(player=player))

#     @staticmethod
#     def is_displayed(player):
#         return player.round_number == 1

### Choice confidence quesitons about current decision
class Results(Page):
    form_model = 'player'
    form_fields = ['current_choiceConfidence']

    @staticmethod
    def vars_for_template(player: Player):
        return dict(items=Item.filter(player=player))

    # @staticmethod
    # def is_displayed(player):
    #     return player.round_number > 1

    @staticmethod
    def app_after_this_page(player, upcoming_apps):
        if player.round_number == 120:
            player.participant.periods_survived=player.round_number
            print('periods survived: ',player.participant.periods_survived)
            return 'go_no_go_2'

class PriceChanges(Page):
    form_model = 'player'
    form_fields = ['inf']

    @staticmethod
    def is_displayed(player):
        return player.round_number % 12 == 0

    @staticmethod
    def vars_for_template(player: Player):
        return dict(rounds12Before=player.round_number - 11)

class Failed(Page):
    @staticmethod
    def is_displayed(player: Player):
        return player.in_round(player.round_number).finalStock < 0 or player.in_round(player.round_number).finalSavings < 0

    @staticmethod
    def app_after_this_page(player, upcoming_apps):
        if player.in_round(player.round_number).finalStock < 0 or player.in_round(player.round_number).finalSavings < 0:
            player.participant.periods_survived=player.round_number
            return 'go_no_go_2'

    @staticmethod
    def before_next_page(player: Player, timeout_happened):
        participant = player.participant
        participant.periods_survived = player.round_number
        print('periods survived recorded: ', participant.periods_survived)

page_sequence = [MyPage, Results, PriceChanges, Failed]