# -*- coding: utf-8 -*-
from django.shortcuts import  render_to_response
from django.http import HttpResponseRedirect, HttpResponse
from django.views.generic import FormView, ListView, DeleteView
from django.conf import settings
from django.contrib import messages
from django.shortcuts import get_object_or_404
from import_xls.models import Log
from import_forms import ImportEventForm, ImportThemeForm, ImportTagForm, \
    ImportPlaceConferenceForm, ImportPlaceExpositionForm
from export_forms import ExportEventForm, ExportThemeForm, ExportTagForm,\
    ExportUserForm, ExportCompanyForm, ExportPlaceConferenceForm, ExportPlaceExpositionForm, ExportBlogForm,\
    ExportCityForm
from django.utils.translation import ugettext as _


def xls_to_response(xls, fname):
    response = HttpResponse(mimetype="application/ms-excel")
    response['Content-Disposition'] = 'attachment; filename=%s' % fname
    xls.save(response)
    return response


class ImportView(FormView):
    """
    abstract class
    """
    template_name = 'c_admin/import templates/import.html'

    def form_valid(self, form):
        errors = form.save_file()

        messages.success(self.request, 'Success')
        context = self.get_context_data()
        context['import_errors'] = errors
        context['form'] = form
        return render_to_response(self.template_name, context)


class ExportView(FormView):
    """
    abstract class
    """
    template_name = 'export.html'

    def form_valid(self, form):
        workbook = form.export()
        if workbook:
            f_name = form.get_fname()
        else:
            messages.error(self.request, _('No objects found'))
            return HttpResponseRedirect(self.success_url)
        return xls_to_response(workbook, f_name)


class ExportTheme(ExportView):
    form_class = ExportThemeForm
    success_url = '/admin/export-theme'


class ExportTag(ExportView):
    form_class = ExportTagForm
    success_url = '/admin/export-tag'


class ExportUser(ExportView):
    form_class = ExportUserForm
    success_url = '/admin/export-user'


class ExportCompany(ExportView):
    form_class = ExportCompanyForm
    success_url = '/admin/export-company'


class ExportPlaceConference(ExportView):
    form_class = ExportPlaceConferenceForm
    success_url = '/admin/export-place_conference'


class ExportPlaceExposition(ExportView):
    form_class = ExportPlaceExpositionForm
    success_url = '/admin/export-place_exposition'


class ExportBlog(ExportView):
    form_class = ExportBlogForm
    success_url = '/admin/export-blog/'


class ExportBlog(ExportView):
    form_class = ExportBlogForm
    success_url = '/admin/export-blog/'


class ExportCity(ExportView):
    form_class = ExportCityForm
    success_url = '/admin/export-city/'


class ImportEvent(FormView):
    form_class = ImportEventForm
    success_url = '/admin/import-event/'
    template_name = 'c_admin/import templates/import_event.html'

    def form_valid(self, form):

        errors = form.save_file_debug()
        return HttpResponseRedirect('/admin/import/log/')


class ImportPlaceExposition(FormView):
    form_class = ImportPlaceExpositionForm
    success_url = '/admin/import-place_exposition/'
    template_name = 'c_admin/import templates/import.html'

    def form_valid(self, form):
        errors = form.save_file_debug()
        return HttpResponseRedirect(self.success_url)

class ImportPlaceConference(ImportView):
    form_class = ImportPlaceConferenceForm
    success_url = '/admin/import-place_conference'

    def form_valid(self, form):
        errors = form.save_file_debug()
        return HttpResponseRedirect(self.success_url)


class ImportTheme(ImportView):
    form_class = ImportThemeForm
    success_url = '/admin/import-theme'


class ImportTag(ImportView):
    form_class = ImportTagForm
    success_url = '/admin/import-tag'





class ExportEvent(ExportView):
    form_class = ExportEventForm
    template_name = 'export_event.html'
    success_url = '/admin/export-event'


class LogList(ListView):
    model = Log
    paginate_by = settings.ADMIN_PAGINATION
    template_name = 'c_admin/import templates/log.html'


class LogDelete(DeleteView):
    model = Log
    success_url = '/admin/import/log/'
    template_name = 'c_admin/import templates/log_delete.html'


def log_file(request, log_id):
    log = get_object_or_404(Log, id=log_id)
    response = HttpResponse()
    response['content-type'] = 'application/x-executable'
    filename = 'import_%s_log.txt'%str(log.id)
    response['content-disposition'] = 'attachment;filename=%s'%filename
    response['X-Accel-Redirect'] = log.log.url
    return response


def work_file(request, log_id):
    log = get_object_or_404(Log, id=log_id)
    response = HttpResponse()
    response['content-type'] = 'application/x-executable'
    filename = 'import_%s_file.xls' % str(log.id)
    response['content-disposition'] = 'attachment;filename=%s'%filename
    response['X-Accel-Redirect'] = log.work_file.url
    return response