from django.contrib import admin
from .models import Item, Tag, TYPE_AUDIO, TYPE_FOLDER, TYPE_IMAGE, TYPE_VIDEO


class ItemAdmin(admin.ModelAdmin):
    list_display = ('rel_path', 'type', )
    search_fields = ('rel_path', )
    readonly_fields = (
        'rel_path',
        'type',
        'artist_c',
        'album_c',
        'year_c',
        'title_c',
        'track_c',
        'duration_c',
        'genre_c',
        'bitrate_c',
        'num_audio_c',
        'num_folders_c',
        'num_images_c',
        'num_other_c',
        'num_videos_c',
        'sil_c',
        'camera_c',
        'width_c',
        'height_c',
        'exposure_program_c',
        'exposure_time_c',
        'iso_c',
        'f_number_c',
        'focal_length_c',
        'flash_c',
        'lon_c',
        'lat_c',
        'orientation_c',
        'ratio_c'
    )

    list_filter = (
        ('type', admin.ChoicesFieldListFilter),
        ('public_access', admin.BooleanFieldListFilter),
        ('read_access', admin.RelatedFieldListFilter),
        ('modify_access', admin.RelatedFieldListFilter),
    )

    def get_fields(self, request, obj=None):
        if obj is not None:
            rv = ['rel_path', 'type', 'datetime_c']
            if obj.type == TYPE_FOLDER:
                rv += ['public_access', 'read_access', 'modify_access']
            else:
                rv += ['favourite_of']
            rv += ['size_c', 'uid_c', 'settings_c', 'data_version_c']
            if obj.type == TYPE_AUDIO:
                rv += [
                    'artist_c',
                    'album_c',
                    'year_c',
                    'title_c',
                    'track_c',
                    'duration_c',
                    'genre_c',
                    'bitrate_c',
                ]
            if obj.type == TYPE_FOLDER:
                rv += [
                    'num_folders_c',
                    'num_audio_c',
                    'num_images_c',
                    'num_other_c',
                    'num_videos_c',
                    'sil_c',
                ]
            if obj.type == TYPE_IMAGE:
                rv += [
                    'camera_c',
                    'width_c',
                    'height_c',
                    'lon_c',
                    'lat_c',
                    'exposure_program_c',
                    'exposure_time_c',
                    'iso_c',
                    'focal_length_c',
                    'f_number_c',
                    'flash_c',
                    'orientation_c',
                ]
            if obj.type == TYPE_VIDEO:
                rv += [
                    'duration_c',
                    'width_c',
                    'height_c',
                    'ratio_c'
                ]
            return rv
        else:
            return admin.ModelAdmin.get_fields(self, request, obj=obj)


class TagAdmin(admin.ModelAdmin):
    list_display = ('item', 'text', )
    search_fields = ('item__rel_path', 'text', )


admin.site.register(Item, ItemAdmin)
admin.site.register(Tag, TagAdmin)