import uuid

from django.contrib.auth.models import AbstractUser
from django.db import models

# from core.lib.customers import get_or_create, update_customer_fields
from core.util import logs

log = logs.get_logger(__name__)

SERVICE_CHOICES = (("nordigen", "Nordigen"),)

PLATFORM_SERVICE_CHOICES = (("agora", "Agora"),)


class User(AbstractUser):
    id = models.UUIDField(primary_key=True, default=uuid.uuid4, editable=False)
    payment_provider_id = models.CharField(max_length=255, null=True, blank=True)
    billing_provider_id = models.CharField(max_length=255, null=True, blank=True)
    email = models.EmailField(unique=True)

    def get_notification_settings(self):
        return NotificationSettings.objects.get_or_create(user=self)[0]


class NotificationSettings(models.Model):
    user = models.ForeignKey(User, on_delete=models.CASCADE)
    ntfy_topic = models.CharField(max_length=255, null=True, blank=True)
    ntfy_url = models.CharField(max_length=255, null=True, blank=True)

    def __str__(self):
        return f"Notification settings for {self.user}"


class Aggregator(models.Model):
    """
    A connection to an API aggregator to pull transactions from bank accounts.
    """

    id = models.UUIDField(primary_key=True, default=uuid.uuid4, editable=False)
    user = models.ForeignKey(User, on_delete=models.CASCADE)
    name = models.CharField(max_length=255)
    service = models.CharField(max_length=255, choices=SERVICE_CHOICES)
    secret_id = models.CharField(max_length=1024, null=True, blank=True)
    secret_key = models.CharField(max_length=1024, null=True, blank=True)
    access_token = models.CharField(max_length=1024, null=True, blank=True)
    access_token_expires = models.DateTimeField(null=True, blank=True)
    poll_interval = models.IntegerField(default=10)

    account_info = models.JSONField(default=dict)
    currencies = models.JSONField(default=list)

    fetch_accounts = models.BooleanField(default=True)

    enabled = models.BooleanField(default=True)

    def __str__(self):
        return f"{self.name} ({self.get_service_display()})"

    @classmethod
    def get_by_id(cls, obj_id, user):
        return cls.objects.get(id=obj_id, user=user)

    @property
    def client(self):
        pass

    @classmethod
    def get_for_platform(cls, platform):
        return cls.objects.filter(user=platform.user, enabled=True)

    @classmethod
    def get_currencies_for_platform(cls, platform):
        aggregators = Aggregator.get_for_platform(platform)
        currencies = set()
        for aggregator in aggregators:
            for currency in aggregator.currencies:
                currencies.add(currency)

        return list(currencies)

    @classmethod
    def get_account_info_for_platform(cls, platform):
        aggregators = Aggregator.get_for_platform(platform)
        account_info = {}
        for agg in aggregators:
            for bank, accounts in agg.account_info.items():
                if bank not in account_info:
                    account_info[bank] = []
                for account in accounts:
                    account_info[bank].append(account)
        return account_info


class Platform(models.Model):
    """
    A connection to an arbitrage platform like AgoraDesk.
    """

    id = models.UUIDField(primary_key=True, default=uuid.uuid4, editable=False)
    user = models.ForeignKey(User, on_delete=models.CASCADE)
    name = models.CharField(max_length=255)
    service = models.CharField(max_length=255, choices=PLATFORM_SERVICE_CHOICES)
    token = models.CharField(max_length=1024)
    password = models.CharField(max_length=1024)
    otp_token = models.CharField(max_length=1024, null=True, blank=True)
    username = models.CharField(max_length=255)

    send = models.BooleanField(default=True)
    cheat = models.BooleanField(default=False)
    dummy = models.BooleanField(default=False)
    cheat_interval_seconds = models.IntegerField(default=600)

    margin = models.FloatField(default=1.20)
    max_margin = models.FloatField(default=1.30)
    min_margin = models.FloatField(default=1.15)
    min_trade_size_usd = models.FloatField(default=10)
    max_trade_size_usd = models.FloatField(default=4000)

    accept_within_usd = models.FloatField(default=1)
    no_reference_amount_check_max_usd = models.FloatField(default=400)

    last_messages = models.JSONField(default=dict)
    platform_ad_ids = models.JSONField(default=dict)

    enabled = models.BooleanField(default=True)

    def __str__(self):
        return self.name

    def get_ad(self, platform_ad_id):
        ad_id = self.platform_ad_ids.get(platform_ad_id, None)
        if not ad_id:
            return None
        ad_object = Ad.objects.filter(id=ad_id, user=self.user, enabled=True).first()
        return ad_object

    @classmethod
    def get_for_user(cls, user):
        return cls.objects.filter(user=user, enabled=True)

    @property
    def currencies(self):
        return Aggregator.get_currencies_for_platform(self)

    @property
    def account_info(self):
        return Aggregator.get_account_info_for_platform(self)

    @property
    def ads(self):
        """
        Get all ads linked to this platform.
        """
        return Ad.objects.filter(user=self.user, enabled=True, platforms=self)

    @property
    def ads_assets(self):
        """
        Get all the assets of all the ads.
        """
        assets = set()

        for ad in self.ads:
            for asset in ad.asset_list.all():
                assets.add(asset.code)

        return list(assets)

    @property
    def ads_providers(self):
        """
        Get all the providers of all the ads.
        """
        providers = set()

        for ad in self.ads:
            for provider in ad.provider_list.all():
                providers.add(provider.code)

        return list(providers)


class Asset(models.Model):
    code = models.CharField(max_length=64)
    name = models.CharField(max_length=255)

    def __str__(self):
        return f"{self.name} ({self.code})"


class Provider(models.Model):
    code = models.CharField(max_length=64)
    name = models.CharField(max_length=255)

    def __str__(self):
        return f"{self.name} ({self.code})"


class Ad(models.Model):
    """
    An advert definition
    """

    id = models.UUIDField(primary_key=True, default=uuid.uuid4, editable=False)
    user = models.ForeignKey(User, on_delete=models.CASCADE)
    name = models.CharField(max_length=255)

    text = models.TextField()

    # Shown when the user opens a trade
    payment_details = models.TextField()

    # Shown after
    payment_details_real = models.TextField()

    payment_method_details = models.CharField(max_length=255)

    dist_list = models.TextField()

    asset_list = models.ManyToManyField(Asset)
    provider_list = models.ManyToManyField(Provider)

    platforms = models.ManyToManyField(Platform)
    aggregators = models.ManyToManyField(Aggregator)

    account_map = models.JSONField(default=dict)

    visible = models.BooleanField(default=True)
    enabled = models.BooleanField(default=True)

    @classmethod
    def get_by_id(cls, ad_id, user):
        return cls.objects.filter(id=ad_id, user=user, enabled=True).first()


assets = {
    "XMR": "Monero",
    "BTC": "Bitcoin",
}
providers = {
    "REVOLUT": "Revolut",
    "NATIONAL_BANK": "Bank transfer",
    "SWISH": "Swish",
}
for code, name in assets.items():
    if not Asset.objects.filter(code=code).exists():
        Asset.objects.create(code=code, name=name)

for code, name in providers.items():
    if not Provider.objects.filter(code=code).exists():
        Provider.objects.create(code=code, name=name)