from django.contrib import admin
from django.utils.translation import gettext_lazy as _
from helpdesk import settings as helpdesk_settings
from helpdesk.models import (
    Checklist,
    ChecklistTask,
    ChecklistTemplate,
    CustomField,
    EmailTemplate,
    EscalationExclusion,
    FollowUp,
    FollowUpAttachment,
    IgnoreEmail,
    KBIAttachment,
    PreSetReply,
    Queue,
    Ticket,
    TicketChange
)


if helpdesk_settings.HELPDESK_KB_ENABLED:
    from helpdesk.models import KBCategory, KBItem


@admin.register(Queue)
class QueueAdmin(admin.ModelAdmin):
    list_display = ('title', 'slug', 'email_address', 'locale', 'time_spent')
    prepopulated_fields = {"slug": ("title",)}

    def time_spent(self, q):
        if q.dedicated_time:
            return "{} / {}".format(q.time_spent, q.dedicated_time)
        elif q.time_spent:
            return q.time_spent
        else:
            return "-"

    def delete_queryset(self, request, queryset):
        for queue in queryset:
            queue.delete()


@admin.register(Ticket)
class TicketAdmin(admin.ModelAdmin):
    list_display = ('title', 'status', 'assigned_to', 'queue',
                    'hidden_submitter_email', 'time_spent')
    date_hierarchy = 'created'
    list_filter = ('queue', 'assigned_to', 'status')
    search_fields = ('id', 'title')

    def hidden_submitter_email(self, ticket):
        if ticket.submitter_email:
            username, domain = ticket.submitter_email.split("@")
            username = username[:2] + "*" * (len(username) - 2)
            domain = domain[:1] + "*" * (len(domain) - 2) + domain[-1:]
            return "%s@%s" % (username, domain)
        else:
            return ticket.submitter_email
    hidden_submitter_email.short_description = _('Submitter E-Mail')

    def time_spent(self, ticket):
        return ticket.time_spent


class TicketChangeInline(admin.StackedInline):
    model = TicketChange
    extra = 0


class FollowUpAttachmentInline(admin.StackedInline):
    model = FollowUpAttachment
    extra = 0


class KBIAttachmentInline(admin.StackedInline):
    model = KBIAttachment
    extra = 0


@admin.register(FollowUp)
class FollowUpAdmin(admin.ModelAdmin):
    inlines = [TicketChangeInline, FollowUpAttachmentInline]
    list_display = ('ticket_get_ticket_for_url', 'title', 'date', 'ticket',
                    'user', 'new_status', 'time_spent')
    list_filter = ('user', 'date', 'new_status')

    def ticket_get_ticket_for_url(self, obj):
        return obj.ticket.ticket_for_url
    ticket_get_ticket_for_url.short_description = _('Slug')


if helpdesk_settings.HELPDESK_KB_ENABLED:
    @admin.register(KBItem)
    class KBItemAdmin(admin.ModelAdmin):
        list_display = ('category', 'title', 'last_updated',
                        'team', 'order', 'enabled')
        inlines = [KBIAttachmentInline]
        readonly_fields = ('voted_by', 'downvoted_by')

        list_display_links = ('title',)

    if helpdesk_settings.HELPDESK_KB_ENABLED:
        @admin.register(KBCategory)
        class KBCategoryAdmin(admin.ModelAdmin):
            list_display = ('name', 'title', 'slug', 'public')


@admin.register(CustomField)
class CustomFieldAdmin(admin.ModelAdmin):
    list_display = ('name', 'label', 'data_type')


@admin.register(EmailTemplate)
class EmailTemplateAdmin(admin.ModelAdmin):
    list_display = ('template_name', 'heading', 'locale')
    list_filter = ('locale', )


@admin.register(IgnoreEmail)
class IgnoreEmailAdmin(admin.ModelAdmin):
    list_display = ('name', 'queue_list', 'email_address', 'keep_in_mailbox')


@admin.register(ChecklistTemplate)
class ChecklistTemplateAdmin(admin.ModelAdmin):
    list_display = ('name', 'task_list')
    search_fields = ('name', 'task_list')


class ChecklistTaskInline(admin.TabularInline):
    model = ChecklistTask


@admin.register(Checklist)
class ChecklistAdmin(admin.ModelAdmin):
    list_display = ('name', 'ticket')
    search_fields = ('name', 'ticket__id', 'ticket__title')
    autocomplete_fields = ('ticket',)
    list_select_related = ('ticket',)
    inlines = (ChecklistTaskInline,)


admin.site.register(PreSetReply)
admin.site.register(EscalationExclusion)