from pydantic import BaseModel, Field
from typing import List, Dict, Literal, Optional


no_keywords = 25


class SuggestedSearchQueries(BaseModel):
    queries: List[str] = Field(
        ...,
        title="List of suggested search queries",
        min_items=1,
        max_items=no_keywords,
    )


# ==== Pydantic models للبنية النهائية ====
class Subtopic(BaseModel):
    title: str
    description: str = ""
    queries: List[str] = Field(..., min_items=1, max_items=3)


class Topic(BaseModel):
    topic_name: str
    subtopics: List[Subtopic]


class Unit(BaseModel):
    unit_name: str
    outcome: str
    topics: List[Topic]


class CourseWithQueries(BaseModel):
    course_name: str
    course_audience: str
    expanded_units: List[Unit]