from pydantic import BaseModel, Field
from typing import List


# ===============================
# المستوى الرابع: SubTopic
# ===============================
class SubTopic(BaseModel):
    title: str = Field(..., description="عنوان العنوان الفرعي")
    description: str = Field(..., description="وصف العنوان الفرعي")


# ===============================
# المستوى الثالث: Topic
# ===============================
class Topic(BaseModel):
    topic_name: str = Field(..., description="اسم الموضوع")
    subtopics: List[SubTopic] = Field(..., description="العناوين الفرعية للموضوع")


# ===============================
# المستوى الثاني: Unit
# ===============================
class ExpandedUnit(BaseModel):
    unit_name: str = Field(..., description="اسم الوحدة")
    outcome: str = Field(..., description="ناتج التعلم للوحدة")
    topics: List[Topic] = Field(..., description="موضوعات الوحدة")


# ===============================
# المستوى الأول: Course
# ===============================
class CourseContent(BaseModel):
    course_name: str = Field(..., description="اسم المقرر")
    course_audience: str = Field(..., description="الفئة المستهدفة من المقرر")
    expanded_units: List[ExpandedUnit] = Field(
        ..., description="الوحدات التفصيلية للمقرر"
    )