import django.forms as forms
from django.contrib import admin
from django.forms import ModelForm
from django.http import HttpResponse
from django.core import serializers

from troggle.core.views.other import downloadLogbook
from troggle.core.models.troggle import Person, PersonExpedition, Expedition, DataIssue
from troggle.core.models.caves import Cave, Area, Entrance, CaveAndEntrance, LogbookEntry, PersonTrip, QM
from troggle.core.models.survex import SurvexBlock, SurvexPersonRole, SurvexStation, ScansFolder, SingleScan

'''This code significantly adds to the capabilities of the Django Management control panel for Troggle data.
In particular, it enables JSON export of any data with 'export_as_json'
and configures the search fields to be used within the control panel.

What is the search path for the css and js inclusions  in the Media subclasses though ?!
'''

class TroggleModelAdmin(admin.ModelAdmin):
    
    def save_model(self, request, obj, form, change):
        """overriding admin save to fill the new_since parsing_field"""
        obj.new_since_parsing=True
        obj.save()
    
    class Media:
        js = ('jquery/jquery.min.js','js/QM_helper.js')


class RoleInline(admin.TabularInline):
    model = SurvexPersonRole
    extra = 4


class SurvexBlockAdmin(TroggleModelAdmin):
    inlines = (RoleInline,)


class SurveyAdmin(TroggleModelAdmin):
    #inlines = (ScannedImageInline,)
    search_fields = ('expedition__year','wallet_number')    


class QMsFoundInline(admin.TabularInline):
    model=QM
    fk_name='found_by'
    fields=('number','grade','location_description','comment')#need to add foreignkey to cave part
    extra=1
    

class PersonTripInline(admin.TabularInline):
    model = PersonTrip
    raw_id_fields = ('personexpedition',)
    extra = 1


class LogbookEntryAdmin(TroggleModelAdmin):
    prepopulated_fields = {'slug':("title",)} 
    search_fields = ('title','expedition__year')
    date_heirarchy = ('date')
    inlines = (PersonTripInline, QMsFoundInline)
    class Media:
        css = {
            "all": ("css/troggleadmin.css",) # this does not exist
        }
    actions=('export_logbook_entries_as_html','export_logbook_entries_as_txt')
    
    def export_logbook_entries_as_html(self, modeladmin, request, queryset):
        response=downloadLogbook(request=request, queryset=queryset, extension='html') #fails, no queryset
        return response
        
    def export_logbook_entries_as_txt(self, modeladmin, request, queryset):
        response=downloadLogbook(request=request, queryset=queryset, extension='txt') #fails, no queryset
        return response


class PersonExpeditionInline(admin.TabularInline):
    model = PersonExpedition
    extra = 1


class PersonAdmin(TroggleModelAdmin):
    search_fields = ('first_name','last_name')
    inlines = (PersonExpeditionInline,)


class QMAdmin(TroggleModelAdmin):
    search_fields = ('found_by__cave__kataster_number','number','found_by__date')
    list_display = ('__str__','grade','found_by','ticked_off_by')
    list_display_links = ('__str__',)
    list_editable = ('found_by','ticked_off_by','grade')
    list_per_page = 20
    raw_id_fields=('found_by','ticked_off_by')


class PersonExpeditionAdmin(TroggleModelAdmin):
    search_fields = ('person__first_name','expedition__year')


class CaveAdmin(TroggleModelAdmin):
    search_fields = ('official_name','kataster_number','unofficial_number')
    extra = 4


class EntranceAdmin(TroggleModelAdmin):
    search_fields = ('caveandentrance__cave__kataster_number',)


admin.site.register(Cave, CaveAdmin)
admin.site.register(Area)
admin.site.register(CaveAndEntrance)
admin.site.register(Entrance, EntranceAdmin)
admin.site.register(SurvexBlock, SurvexBlockAdmin)
admin.site.register(Expedition)
admin.site.register(Person,PersonAdmin)
admin.site.register(SurvexPersonRole)
admin.site.register(PersonExpedition,PersonExpeditionAdmin)
admin.site.register(LogbookEntry, LogbookEntryAdmin)
admin.site.register(QM, QMAdmin)
admin.site.register(SurvexStation)
admin.site.register(ScansFolder)
admin.site.register(SingleScan)
admin.site.register(DataIssue)

def export_as_json(modeladmin, request, queryset):
    response = HttpResponse(content_type="text/json")
    response['Content-Disposition'] = 'attachment; filename=troggle_output.json'
    serializers.serialize("json", queryset, stream=response)
    return response


def export_as_xml(modeladmin, request, queryset):
    response = HttpResponse(content_type="text/xml")
    response['Content-Disposition'] = 'attachment; filename=troggle_output.xml'
    serializers.serialize("xml", queryset, stream=response)
    return response


admin.site.add_action(export_as_xml)
admin.site.add_action(export_as_json)