from django.core.validators import FileExtensionValidator
from django.db import models
from django.utils.translation import get_language, gettext_lazy as _


class PortalBranding(models.Model):
    name = models.CharField(max_length=80, default='Default', unique=True)
    portal_title = models.CharField(max_length=255, default='Workdock')
    company_name = models.CharField(max_length=255, default='Workdock')
    company_domain = models.CharField(max_length=120, blank=True, default='workdock.de')
    support_email = models.EmailField(blank=True, default='info@workdock.de')
    sender_display_name = models.CharField(max_length=255, blank=True, default='Workdock')
    login_subtitle = models.CharField(max_length=255, blank=True, default='Bitte melden Sie sich mit Ihrem Benutzerkonto an.')
    footer_text = models.CharField(max_length=255, blank=True, default='Workdock')
    footer_text_en = models.CharField(max_length=255, blank=True, default='Workdock')
    legal_notice = models.TextField(blank=True, default='')
    legal_notice_en = models.TextField(blank=True, default='')
    default_language = models.CharField(max_length=10, choices=[('de', 'Deutsch'), ('en', 'English')], default='de')
    logo_image = models.FileField(upload_to='branding/', blank=True, null=True, validators=[FileExtensionValidator(allowed_extensions=['svg', 'png', 'jpg', 'jpeg', 'webp'])])
    pdf_letterhead = models.FileField(upload_to='branding/', blank=True, null=True, validators=[FileExtensionValidator(allowed_extensions=['pdf'])])
    favicon_image = models.FileField(upload_to='branding/', blank=True, null=True, validators=[FileExtensionValidator(allowed_extensions=['ico', 'png', 'svg', 'webp'])])
    primary_color = models.CharField(max_length=20, blank=True, default='#000078')
    secondary_color = models.CharField(max_length=20, blank=True, default='#c0002b')
    updated_at = models.DateTimeField(auto_now=True)

    class Meta:
        verbose_name = 'Portal Branding'
        verbose_name_plural = 'Portal Branding'

    def __str__(self) -> str:
        return self.portal_title or self.company_name or self.name


class PortalCompanyConfig(models.Model):
    name = models.CharField(max_length=80, default='Default', unique=True)
    legal_company_name = models.CharField(max_length=255, blank=True, default='')
    street_address = models.CharField(max_length=255, blank=True, default='')
    postal_code = models.CharField(max_length=50, blank=True, default='')
    city = models.CharField(max_length=120, blank=True, default='')
    country = models.CharField(max_length=120, blank=True, default='Deutschland')
    website_url = models.URLField(blank=True, default='')
    imprint_url = models.URLField(blank=True, default='')
    privacy_url = models.URLField(blank=True, default='')
    hr_contact_email = models.EmailField(blank=True, default='')
    it_contact_email = models.EmailField(blank=True, default='')
    operations_contact_email = models.EmailField(blank=True, default='')
    phone_number = models.CharField(max_length=80, blank=True, default='')
    vat_id = models.CharField(max_length=80, blank=True, default='')
    registration_number = models.CharField(max_length=120, blank=True, default='')
    updated_at = models.DateTimeField(auto_now=True)

    class Meta:
        verbose_name = 'Portal Company Config'
        verbose_name_plural = 'Portal Company Config'

    def __str__(self) -> str:
        return self.legal_company_name or self.name


class PortalTrialConfig(models.Model):
    name = models.CharField(max_length=80, default='Default', unique=True)
    is_trial_mode = models.BooleanField(default=False)
    trial_started_at = models.DateTimeField(null=True, blank=True)
    trial_expires_at = models.DateTimeField(null=True, blank=True)
    restrict_production_integrations = models.BooleanField(default=True)
    auto_cleanup_enabled = models.BooleanField(default=True)
    trial_banner_text = models.CharField(max_length=255, blank=True, default='')
    trial_banner_text_en = models.CharField(max_length=255, blank=True, default='')
    last_cleanup_at = models.DateTimeField(null=True, blank=True)
    updated_at = models.DateTimeField(auto_now=True)

    class Meta:
        verbose_name = 'Portal Trial Config'
        verbose_name_plural = 'Portal Trial Config'

    def __str__(self) -> str:
        return self.name


class PortalAppConfig(models.Model):
    SECTION_APP = 'app'
    SECTION_PLATFORM = 'platform'
    SECTION_ADMIN = 'admin'
    SECTION_CHOICES = [
        (SECTION_APP, _('Apps')),
        (SECTION_PLATFORM, _('Platform Apps')),
        (SECTION_ADMIN, _('Admin Apps')),
    ]

    key = models.CharField(max_length=80, unique=True)
    section = models.CharField(max_length=20, choices=SECTION_CHOICES, default=SECTION_APP)
    sort_order = models.PositiveIntegerField(default=0)
    is_enabled = models.BooleanField(default=True)
    visible_to_super_admin = models.BooleanField(default=True)
    visible_to_admin = models.BooleanField(default=True)
    visible_to_it_staff = models.BooleanField(default=False)
    visible_to_staff = models.BooleanField(default=False)
    title_override = models.CharField(max_length=255, blank=True)
    title_override_en = models.CharField(max_length=255, blank=True)
    description_override = models.TextField(blank=True)
    description_override_en = models.TextField(blank=True)
    action_label_override = models.CharField(max_length=255, blank=True)
    action_label_override_en = models.CharField(max_length=255, blank=True)
    updated_at = models.DateTimeField(auto_now=True)

    class Meta:
        ordering = ['section', 'sort_order', 'key']
        verbose_name = 'Portal App'
        verbose_name_plural = 'Portal Apps'

    def __str__(self) -> str:
        return self.key

    def _translated_value(self, field_name: str, language_code: str | None = None) -> str:
        lang = (language_code or get_language() or 'de').split('-')[0]
        if lang == 'en':
            english_value = (getattr(self, f'{field_name}_en', '') or '').strip()
            if english_value:
                return english_value
        return (getattr(self, field_name, '') or '').strip()

    def translated_title_override(self, language_code: str | None = None) -> str:
        return self._translated_value('title_override', language_code)

    def translated_description_override(self, language_code: str | None = None) -> str:
        return self._translated_value('description_override', language_code)

    def translated_action_label_override(self, language_code: str | None = None) -> str:
        return self._translated_value('action_label_override', language_code)