import os

from django.contrib import admin
from wsgiref.util import FileWrapper
from django.http import HttpResponse
from django.conf import settings
from .models import Termin

import xlsxwriter


class TerminAdmin(admin.ModelAdmin):
    list_display = ('title','start_date', 'end_date', 'group', 'category', 'responsible')
    list_filter = ('group',)
    ordering = ('start_date','end_date')
    actions = ['make_overview']

    def make_overview(self, request, queryset):
        filename = 'termine.xlsx'
        workbook = xlsxwriter.Workbook(media_path(filename))
        bold = workbook.add_format({'bold': True})
        worksheet = workbook.add_worksheet()
        worksheet.write(0, 0, "Titel", bold)
        worksheet.write(0, 1, "Untertitel", bold)
        worksheet.write(0, 2, "Von", bold)
        worksheet.write(0, 3, "Bis", bold)
        worksheet.write(0, 4, "Gruppe", bold)
        worksheet.write(0, 5, "Kategorie", bold)
        worksheet.write(0, 6, "Technik", bold)
        worksheet.write(0, 7, "Kondition", bold)
        worksheet.write(0, 8, "Saison", bold)
        worksheet.write(0, 9, "Eventart", bold)
        worksheet.write(0, 10, "Klassifizierung", bold)
        worksheet.write(0, 11, "Höhenmeter (Meter)", bold)
        worksheet.write(0, 12, "Strecke (Kilometer)", bold)
        worksheet.write(0, 13, "Etappendauer (Stunden)", bold)
        worksheet.write(0, 14, "Voraussetzungen", bold)
        worksheet.write(0, 15, "Beschreibung", bold)
        worksheet.write(0, 16, "Ausrüstung", bold)
        worksheet.write(0, 17, "Max. Teilnehmerzahl", bold)
        worksheet.write(0, 18, "Organisator", bold)
        worksheet.write(0, 19, "Telefonnummer", bold)
        worksheet.write(0, 20, "Emailadresse", bold)
        for row, termin in enumerate(queryset):
            worksheet.write(row+2, 0, termin.title)
            worksheet.write(row+2, 1, termin.subtitle)
            worksheet.write(row+2, 2, termin.start_date.strftime('%d.%m.%Y'))
            worksheet.write(row+2, 3, termin.end_date.strftime('%d.%m.%Y'))
            worksheet.write(row+2, 4, termin.group)
            worksheet.write(row+2, 5, termin.category)
            worksheet.write(row+2, 6, termin.technik)
            worksheet.write(row+2, 7, termin.condition)
            worksheet.write(row+2, 8, termin.saison)
            worksheet.write(row+2, 9, termin.eventart)
            worksheet.write(row+2, 10, termin.klassifizierung)
            worksheet.write(row+2, 11, termin.anforderung_hoehe)
            worksheet.write(row+2, 12, termin.anforderung_strecke)
            worksheet.write(row+2, 13, termin.anforderung_dauer)
            worksheet.write(row+2, 14, termin.voraussetzungen)
            worksheet.write(row+2, 15, termin.description)
            worksheet.write(row+2, 16, termin.equipment)
            worksheet.write(row+2, 17, termin.max_participants)
            worksheet.write(row+2, 18, termin.responsible)
            worksheet.write(row+2, 19, termin.phone)
            worksheet.write(row+2, 20, termin.email)
        workbook.close()
        with open(media_path(filename), 'rb') as xls:
            response = HttpResponse(FileWrapper(xls))
            response['Content-Type'] = 'application/xlsx'
            response['Content-Disposition'] = 'attachment; filename='+filename

        return response
    make_overview.short_description = "Termine in Excel Liste überführen"

# Register your models here.
admin.site.register(Termin, TerminAdmin)


def media_path(fp):
    return os.path.join(os.path.join(settings.MEDIA_ROOT, "memberlists"), fp)