import json
from django import forms
from django.utils.translation import gettext_lazy as _

from dynamic_preferences.preferences import Section
from dynamic_preferences.registries import global_preferences_registry
from dynamic_preferences.types import (
    BasePreferenceType,
    BaseSerializer,
    LongStringPreference,
    StringPreference,
    BooleanPreference,
)
from unfold.contrib.forms.widgets import WysiwygWidget
from unfold.widgets import UnfoldAdminTextareaWidget


# ---------------------------------------------------------
# Preference Types & Custom Serializers
# ---------------------------------------------------------

class EditorPreferences(LongStringPreference):
    widget = WysiwygWidget(attrs={'class': 'editor-field'})  


class EditorTextPreferences(LongStringPreference):
    widget = UnfoldAdminTextareaWidget(attrs={'class': 'editor-field', 'rows': 15})  


class JsonSerializer(BaseSerializer):
    @classmethod
    def serialize(cls, value, **kwargs):
        return json.dumps(value, ensure_ascii=False)

    @classmethod
    def to_python(cls, value, **kwargs):
        if isinstance(value, str) and len(value.strip()) > 0:
            try:
                return json.loads(value)
            except json.JSONDecodeError:
                return {}
        return value if isinstance(value, dict) else {}


# ---------------------------------------------------------
# Sections
# ---------------------------------------------------------

general_section = Section('general', verbose_name=_('General Settings'))
contact_section = Section('contact', verbose_name=_('Contact & Support'))
content_section = Section('content', verbose_name=_('Content Pages'))


# ---------------------------------------------------------
# Registered Preferences
# ---------------------------------------------------------

@global_preferences_registry.register
class SiteName(StringPreference):
    section = general_section
    name = 'site_name'
    verbose_name = _('Site Name')
    default = 'My Application'
    required = True


@global_preferences_registry.register
class MaintenanceMode(BooleanPreference):
    section = general_section
    name = 'maintenance_mode'
    verbose_name = _('Maintenance Mode')
    default = False


@global_preferences_registry.register
class ContactEmail(StringPreference):
    section = contact_section
    name = 'contact_email'
    verbose_name = _('Support Email')
    default = 'support@example.com'
    required = False


@global_preferences_registry.register
class SupportPhone(StringPreference):
    section = contact_section
    name = 'support_phone'
    verbose_name = _('Support Phone Number')
    default = '+1 555 1234567'
    required = False


@global_preferences_registry.register
class AboutUs(EditorPreferences):
    section = content_section
    name = 'about_us'
    verbose_name = _('About Us Page')
    default = '<h2>About Us</h2><p>Welcome to our application.</p>'
    required = False


@global_preferences_registry.register
class TermsAndConditions(EditorPreferences):
    section = content_section
    name = 'terms_and_conditions'
    verbose_name = _('Terms & Conditions')
    default = '<h2>Terms and Conditions</h2><p>Standard terms and conditions.</p>'
    required = False