# -*- coding: utf-8 -*-

from django.core.files import File
from django.db import models
from django.db.models.signals import post_delete, post_save

from colorfield.fields import ColorField

import os


class Theme(models.Model):
    
    @staticmethod
    def post_delete_handler(instance, **kwargs):
        Theme.get_or_create_default_theme()
    
    @staticmethod
    def post_save_handler(instance, created, **kwargs):
        instance.set_active(instance.active)
        Theme.get_or_create_default_theme()
        
    @staticmethod
    def get_or_create_default_theme():
        
        obj_active = (True if len(list(Theme.objects.filter(active = True))) == 0 else False)
        obj, obj_created = Theme.objects.get_or_create(pk = '1', defaults = { 'active':obj_active })
        
        if not obj.logo:
            obj.set_default_logo()
        
        if not obj_created and obj_active:
            obj.set_active(True)
        
        return (obj, obj_created, )
        
    name = models.CharField( max_length = 50, default = 'Django' )
    active = models.BooleanField( default = True )
    
    title = models.CharField( max_length = 50, default = 'Django administration', blank = True )
    title_visible = models.BooleanField( default = True, verbose_name = 'visible' )
    
    logo = models.FileField( upload_to = 'admin-interface/logo/', blank = True )
    logo_visible = models.BooleanField( default = True, verbose_name = 'visible' )
    
    css_header_background_color = ColorField( blank = True, default = '#0C4B33', help_text = '#0C4B33', verbose_name = 'background color' )
    css_header_title_color = ColorField( blank = True, default = '#F5DD5D', help_text = '#F5DD5D', verbose_name = 'title color' )
    css_header_text_color = ColorField( blank = True, default = '#44B78B', help_text = '#44B78B', verbose_name = 'text color' )
    css_header_link_color = ColorField( blank = True, default = '#FFFFFF', help_text = '#FFFFFF', verbose_name = 'link color' )
    css_header_link_hover_color = ColorField( blank = True, default = '#C9F0DD', help_text = '#C9F0DD', verbose_name = 'link hover color' )
    
    css_module_background_color = ColorField( blank = True, default = '#44B78B', help_text = '#44B78B', verbose_name = 'background color' )
    css_module_text_color = ColorField( blank = True, default = '#FFFFFF', help_text = '#FFFFFF', verbose_name = 'text color' )
    css_module_link_color = ColorField( blank = True, default = '#FFFFFF', help_text = '#FFFFFF', verbose_name = 'link color' )
    css_module_link_hover_color = ColorField( blank = True, default = '#C9F0DD', help_text = '#C9F0DD', verbose_name = 'link hover color' )
    css_module_rounded_corners = models.BooleanField( default = True, verbose_name = 'rounded corners' )
    
    css_generic_link_color = ColorField( blank = True, default = '#0C3C26', help_text = '#0C3C26', verbose_name = 'link color' )
    css_generic_link_hover_color = ColorField( blank = True, default = '#156641', help_text = '#156641', verbose_name = 'link hover color' )
    
    css_save_button_background_color = ColorField( blank = True, default = '#0C4B33', help_text = '#0C4B33', verbose_name = 'background color' )
    css_save_button_background_hover_color = ColorField( blank = True, default = '#0C3C26', help_text = '#0C3C26', verbose_name = 'background hover color' )
    css_save_button_text_color = ColorField( blank = True, default = '#FFFFFF', help_text = '#FFFFFF', verbose_name = 'text color' )
    
    css_delete_button_background_color = ColorField( blank = True, default = '#BA2121', help_text = '#BA2121', verbose_name = 'background color' )
    css_delete_button_background_hover_color = ColorField( blank = True, default = '#A41515', help_text = '#A41515', verbose_name = 'background hover color' )
    css_delete_button_text_color = ColorField( blank = True, default = '#FFFFFF', help_text = '#FFFFFF', verbose_name = 'text color' )
    
    css = models.TextField( blank = True )
     
    def set_active(self, value):
        
        if value:
            Theme.objects.exclude(pk = self.pk).update(active = False)
            Theme.objects.filter(pk = self.pk).update(active = True)
        else:
            Theme.objects.filter(pk = self.pk).update(active = False)
            
    def set_default_logo(self):
        
        logo_path = os.path.normpath(os.path.dirname(__file__) + '/data/logo-django.svg')
        logo_file = open(logo_path)
        
        self.logo = File(logo_file)
        self.save()
        
        logo_file.close()
    
    class Meta:
        
        app_label = 'admin_interface'
        
        verbose_name = 'Theme'
        verbose_name_plural = 'Themes'
        
    def __unicode__(self):
        
        return unicode(u'%s' % (self.name, ))
        
        
post_delete.connect(Theme.post_delete_handler, sender = Theme)
post_save.connect(Theme.post_save_handler, sender = Theme)