from rest_framework import serializers

from apps.common.api.base_serializer import BaseModelSerializer
from apps.courses.models import Lesson, Course

class LessonSerializer(BaseModelSerializer):
    class Meta(BaseModelSerializer.Meta):
        model = Lesson

class CourseSerializer(BaseModelSerializer):
    lessons = LessonSerializer(many=True, read_only=True)

    class Meta(BaseModelSerializer.Meta):
        model = Course

class EnrollCourseResponseSerializer(serializers.Serializer):
    course_id = serializers.IntegerField()
    enrolled_at = serializers.DateTimeField()

class MyCourseSerializer(serializers.Serializer):
    course_id = serializers.IntegerField()
    title = serializers.CharField()
    enrolled_at = serializers.DateTimeField()

class CompleteLessonResponseSerializer(serializers.Serializer):
    lesson_id = serializers.IntegerField()
    completed = serializers.BooleanField()
    completed_at = serializers.DateTimeField()