from django.contrib import admin
from django.utils.safestring import mark_safe
from quiz.models import QuizResult


@admin.register(QuizResult)
class QuizResultAdmin(admin.ModelAdmin):
    """Admin interface for Quiz Results"""
    list_display = ['id', 'user_preview', 'question_preview', 'selected_answer', 'correct_answer', 'result_status', 'answered_at']
    list_filter = ['is_correct', 'answered_at']
    search_fields = ['user__session_key', 'question__text']
    readonly_fields = ['user', 'question', 'selected_answer', 'is_correct', 'answered_at']

    def user_preview(self, obj):
        """Show user session preview"""
        return f"{obj.user.session_key[:8]}..."
    user_preview.short_description = 'User'

    def question_preview(self, obj):
        """Show question preview"""
        return obj.question.text[:40] + '...'
    question_preview.short_description = 'Question'

    def correct_answer(self, obj):
        """Show correct answer"""
        return obj.question.correct_answer
    correct_answer.short_description = 'Correct'

    def result_status(self, obj):
        """Show visual result status"""
        if obj.is_correct:
            return mark_safe('<span style="color: green; font-weight: bold;">✓ Correct</span>')
        return mark_safe('<span style="color: red; font-weight: bold;">✗ Wrong</span>')
    result_status.short_description = 'Result'