from django.contrib import admin
from .models import Submission, SubmissionFile


class SubmissionFileInline(admin.TabularInline):
    """Inline admin for submission files."""

    model = SubmissionFile
    extra = 0
    readonly_fields = ["uploaded_at", "file_size"]


@admin.register(Submission)
class SubmissionAdmin(admin.ModelAdmin):
    """Admin interface for submissions."""

    list_display = [
        "email",
        "submitted_at",
        "expiration_time",
        "is_expired",
        "file_count",
    ]
    list_filter = ["submitted_at", "expiration_time"]
    search_fields = ["email", "description"]
    readonly_fields = ["submitted_at"]
    inlines = [SubmissionFileInline]

    def file_count(self, obj):
        """Display the number of files in this submission."""
        return obj.files.count()

    file_count.short_description = "Files"


@admin.register(SubmissionFile)
class SubmissionFileAdmin(admin.ModelAdmin):
    """Admin interface for submission files."""

    list_display = ["original_filename", "submission", "file_size", "uploaded_at"]
    list_filter = ["uploaded_at"]
    search_fields = ["original_filename", "submission__email"]
    readonly_fields = ["uploaded_at", "file_size"]