from django import forms
from django.contrib.contenttypes.models import ContentType
from django.utils.translation import gettext_lazy as _

from circuits.choices import (
    CircuitCommitRateChoices,
    CircuitPriorityChoices,
    CircuitStatusChoices,
    VirtualCircuitTerminationRoleChoices,
)
from circuits.constants import CIRCUIT_TERMINATION_TERMINATION_TYPES
from circuits.models import *
from ipam.models import ASN
from netbox.choices import DistanceUnitChoices
from netbox.forms import NetBoxModelBulkEditForm, OrganizationalModelBulkEditForm, PrimaryModelBulkEditForm
from tenancy.models import Tenant
from utilities.forms import GenericObjectFormMixin, add_blank_choice
from utilities.forms.fields import (
    ChoiceField,
    ColorField,
    DynamicModelChoiceField,
    DynamicModelMultipleChoiceField,
    GenericObjectChoiceField,
)
from utilities.forms.rendering import FieldSet
from utilities.forms.widgets import BulkEditNullBooleanSelect, DatePicker, NumberWithOptions

__all__ = (
    'CircuitBulkEditForm',
    'CircuitGroupAssignmentBulkEditForm',
    'CircuitGroupBulkEditForm',
    'CircuitTerminationBulkEditForm',
    'CircuitTypeBulkEditForm',
    'ProviderAccountBulkEditForm',
    'ProviderBulkEditForm',
    'ProviderNetworkBulkEditForm',
    'VirtualCircuitBulkEditForm',
    'VirtualCircuitTerminationBulkEditForm',
    'VirtualCircuitTypeBulkEditForm',
)


class ProviderBulkEditForm(PrimaryModelBulkEditForm):
    asns = DynamicModelMultipleChoiceField(
        queryset=ASN.objects.all(),
        label=_('ASNs'),
        required=False
    )

    model = Provider
    fieldsets = (
        FieldSet('asns', 'description'),
    )
    nullable_fields = (
        'asns', 'description', 'comments',
    )


class ProviderAccountBulkEditForm(PrimaryModelBulkEditForm):
    provider = DynamicModelChoiceField(
        label=_('Provider'),
        queryset=Provider.objects.all(),
        required=False
    )

    model = ProviderAccount
    fieldsets = (
        FieldSet('provider', 'description'),
    )
    nullable_fields = (
        'description', 'comments',
    )


class ProviderNetworkBulkEditForm(PrimaryModelBulkEditForm):
    provider = DynamicModelChoiceField(
        label=_('Provider'),
        queryset=Provider.objects.all(),
        required=False
    )
    service_id = forms.CharField(
        max_length=100,
        required=False,
        label=_('Service ID')
    )

    model = ProviderNetwork
    fieldsets = (
        FieldSet('provider', 'service_id', 'description'),
    )
    nullable_fields = (
        'service_id', 'description', 'comments',
    )


class CircuitTypeBulkEditForm(OrganizationalModelBulkEditForm):
    color = ColorField(
        label=_('Color'),
        required=False
    )

    model = CircuitType
    fieldsets = (
        FieldSet('color', 'description'),
    )
    nullable_fields = ('color', 'description', 'comments')


class CircuitBulkEditForm(PrimaryModelBulkEditForm):
    type = DynamicModelChoiceField(
        label=_('Type'),
        queryset=CircuitType.objects.all(),
        required=False
    )
    provider = DynamicModelChoiceField(
        label=_('Provider'),
        queryset=Provider.objects.all(),
        required=False
    )
    provider_account = DynamicModelChoiceField(
        label=_('Provider account'),
        queryset=ProviderAccount.objects.all(),
        required=False,
        query_params={
            'provider': '$provider'
        }
    )
    status = ChoiceField(
        label=_('Status'),
        choices=add_blank_choice(CircuitStatusChoices),
        required=False,
        initial=''
    )
    tenant = DynamicModelChoiceField(
        label=_('Tenant'),
        queryset=Tenant.objects.all(),
        required=False
    )
    install_date = forms.DateField(
        label=_('Install date'),
        required=False,
        widget=DatePicker()
    )
    termination_date = forms.DateField(
        label=_('Termination date'),
        required=False,
        widget=DatePicker()
    )
    commit_rate = forms.IntegerField(
        required=False,
        label=_('Commit rate (Kbps)'),
        widget=NumberWithOptions(
            options=CircuitCommitRateChoices
        )
    )
    distance = forms.DecimalField(
        label=_('Distance'),
        min_value=0,
        required=False
    )
    distance_unit = ChoiceField(
        label=_('Distance unit'),
        choices=add_blank_choice(DistanceUnitChoices),
        required=False,
        initial=''
    )

    model = Circuit
    fieldsets = (
        FieldSet('provider', 'type', 'status', 'description', name=_('Circuit')),
        FieldSet('provider_account', 'install_date', 'termination_date', 'commit_rate', name=_('Service Parameters')),
        FieldSet('distance', 'distance_unit', name=_('Attributes')),
        FieldSet('tenant', name=_('Tenancy')),
    )
    nullable_fields = (
        'tenant', 'commit_rate', 'description', 'comments',
    )


class CircuitTerminationBulkEditForm(GenericObjectFormMixin, NetBoxModelBulkEditForm):
    description = forms.CharField(
        label=_('Description'),
        max_length=200,
        required=False
    )
    termination = GenericObjectChoiceField(
        label=_('Termination'),
        content_type_queryset=ContentType.objects.filter(model__in=CIRCUIT_TERMINATION_TERMINATION_TYPES),
        required=False,
        selector=True,
        hx_method='post',
    )
    port_speed = forms.IntegerField(
        required=False,
        label=_('Port speed (Kbps)'),
    )
    upstream_speed = forms.IntegerField(
        required=False,
        label=_('Upstream speed (Kbps)'),
    )
    mark_connected = forms.NullBooleanField(
        label=_('Mark connected'),
        required=False,
        widget=BulkEditNullBooleanSelect
    )

    model = CircuitTermination
    fieldsets = (
        FieldSet(
            'description', 'termination', 'mark_connected', name=_('Circuit Termination')
        ),
        FieldSet('port_speed', 'upstream_speed', name=_('Termination Details')),
    )
    nullable_fields = ('description', 'termination')


class CircuitGroupBulkEditForm(OrganizationalModelBulkEditForm):
    tenant = DynamicModelChoiceField(
        label=_('Tenant'),
        queryset=Tenant.objects.all(),
        required=False
    )

    model = CircuitGroup
    nullable_fields = (
        'description', 'tenant', 'comments',
    )


class CircuitGroupAssignmentBulkEditForm(NetBoxModelBulkEditForm):
    member = DynamicModelChoiceField(
        label=_('Circuit'),
        queryset=Circuit.objects.all(),
        required=False
    )
    priority = ChoiceField(
        label=_('Priority'),
        choices=add_blank_choice(CircuitPriorityChoices),
        required=False
    )

    model = CircuitGroupAssignment
    fieldsets = (
        FieldSet('member', 'priority'),
    )
    nullable_fields = ('priority',)


class VirtualCircuitTypeBulkEditForm(OrganizationalModelBulkEditForm):
    color = ColorField(
        label=_('Color'),
        required=False
    )

    model = VirtualCircuitType
    fieldsets = (
        FieldSet('color', 'description'),
    )
    nullable_fields = ('color', 'description', 'comments')


class VirtualCircuitBulkEditForm(PrimaryModelBulkEditForm):
    provider_network = DynamicModelChoiceField(
        label=_('Provider network'),
        queryset=ProviderNetwork.objects.all(),
        required=False
    )
    provider_account = DynamicModelChoiceField(
        label=_('Provider account'),
        queryset=ProviderAccount.objects.all(),
        required=False
    )
    type = DynamicModelChoiceField(
        label=_('Type'),
        queryset=VirtualCircuitType.objects.all(),
        required=False
    )
    status = ChoiceField(
        label=_('Status'),
        choices=add_blank_choice(CircuitStatusChoices),
        required=False,
        initial=''
    )
    tenant = DynamicModelChoiceField(
        label=_('Tenant'),
        queryset=Tenant.objects.all(),
        required=False
    )

    model = VirtualCircuit
    fieldsets = (
        FieldSet('provider_network', 'provider_account', 'status', 'description', name=_('Virtual circuit')),
        FieldSet('tenant', name=_('Tenancy')),
    )
    nullable_fields = (
        'provider_account', 'tenant', 'description', 'comments',
    )


class VirtualCircuitTerminationBulkEditForm(NetBoxModelBulkEditForm):
    role = ChoiceField(
        label=_('Role'),
        choices=add_blank_choice(VirtualCircuitTerminationRoleChoices),
        required=False,
        initial=''
    )
    description = forms.CharField(
        label=_('Description'),
        max_length=200,
        required=False
    )

    model = VirtualCircuitTermination
    fieldsets = (
        FieldSet('role', 'description'),
    )
    nullable_fields = ('description',)
