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from fastapi import APIRouter, HTTPException, status
from fastapi.responses import JSONResponse
from src.utils.logger import logger
from pydantic import BaseModel
from typing import List, Dict, Any, Optional
import json
import os
router = APIRouter(prefix="/pronunciation", tags=["Pronunciation"])
class Level(BaseModel):
id: str
name: str
description: str
color: str
class Vocabulary(BaseModel):
word: str
ipa: str
vietnamese: str
audioUrl: str
class Sentence(BaseModel):
text: str
ipa: str
vietnamese: str
audioUrl: str
class PronunciationLesson(BaseModel):
id: str
title: str
description: str
level: str
vocabulary: List[Vocabulary]
sentence: Sentence
class LevelsResponse(BaseModel):
levels: List[Level]
total: int
class LessonsResponse(BaseModel):
lessons: List[PronunciationLesson]
total: int
level: str
class LessonDetailResponse(BaseModel):
lesson: PronunciationLesson
def load_pronunciation_data() -> Dict[str, Any]:
"""Load pronunciation lessons data from JSON file"""
try:
data_file_path = os.path.join(
os.path.dirname(__file__), "..", "..", "data", "pronunciation_lessons.json"
)
if not os.path.exists(data_file_path):
logger.warning(f"Pronunciation lessons file not found at {data_file_path}")
return {"levels": [], "lessons": {}}
with open(data_file_path, "r", encoding="utf-8") as file:
data = json.load(file)
return data
except Exception as e:
logger.error(f"Error loading pronunciation lessons data: {str(e)}")
return {"levels": [], "lessons": {}}
@router.get("/levels", response_model=LevelsResponse)
async def get_levels():
"""
Get all available levels for pronunciation practice
Returns:
LevelsResponse: Contains list of all levels and total count
"""
try:
data = load_pronunciation_data()
levels_data = data.get("levels", [])
levels = [Level(**level_data) for level_data in levels_data]
return LevelsResponse(levels=levels, total=len(levels))
except Exception as e:
logger.error(f"Error retrieving levels: {str(e)}")
raise HTTPException(
status_code=status.HTTP_500_INTERNAL_SERVER_ERROR,
detail="Failed to retrieve levels",
)
@router.get("/lessons/{level_id}", response_model=LessonsResponse)
async def get_lessons_by_level(level_id: str):
"""
Get all lessons for a specific level
Args:
level_id (str): The level ID (beginner, elementary, etc.)
Returns:
LessonsResponse: Contains list of lessons for the specified level
"""
try:
data = load_pronunciation_data()
lessons_data = data.get("lessons", {})
if level_id not in lessons_data:
raise HTTPException(
status_code=status.HTTP_404_NOT_FOUND,
detail=f"Level '{level_id}' not found",
)
level_lessons = lessons_data[level_id]
lessons = [PronunciationLesson(**lesson_data) for lesson_data in level_lessons]
return LessonsResponse(lessons=lessons, total=len(lessons), level=level_id)
except HTTPException:
raise
except Exception as e:
logger.error(f"Error retrieving lessons for level {level_id}: {str(e)}")
raise HTTPException(
status_code=status.HTTP_500_INTERNAL_SERVER_ERROR,
detail="Failed to retrieve lessons",
)
@router.get("/lesson/{lesson_id}", response_model=LessonDetailResponse)
async def get_lesson_detail(lesson_id: str):
"""
Get detailed information about a specific lesson
Args:
lesson_id (str): The unique identifier of the lesson
Returns:
LessonDetailResponse: Contains the lesson details
"""
try:
data = load_pronunciation_data()
lessons_data = data.get("lessons", {})
# Search for the lesson across all levels
found_lesson = None
for level_id, level_lessons in lessons_data.items():
for lesson_data in level_lessons:
if lesson_data.get("id") == lesson_id:
found_lesson = lesson_data
break
if found_lesson:
break
if not found_lesson:
raise HTTPException(
status_code=status.HTTP_404_NOT_FOUND,
detail=f"Lesson with ID '{lesson_id}' not found",
)
lesson = PronunciationLesson(**found_lesson)
return LessonDetailResponse(lesson=lesson)
except HTTPException:
raise
except Exception as e:
logger.error(f"Error retrieving lesson {lesson_id}: {str(e)}")
raise HTTPException(
status_code=status.HTTP_500_INTERNAL_SERVER_ERROR,
detail="Failed to retrieve lesson",
)
@router.get("/search/level/{level_id}/title/{title}")
async def search_lessons_by_title(level_id: str, title: str):
"""
Search lessons by title within a specific level
Args:
level_id (str): The level ID to search within
title (str): Part of the lesson title to search for
Returns:
LessonsResponse: Contains list of matching lessons
"""
try:
data = load_pronunciation_data()
lessons_data = data.get("lessons", {})
if level_id not in lessons_data:
raise HTTPException(
status_code=status.HTTP_404_NOT_FOUND,
detail=f"Level '{level_id}' not found",
)
level_lessons = lessons_data[level_id]
matching_lessons = [
lesson_data for lesson_data in level_lessons
if title.lower() in lesson_data.get("title", "").lower()
]
lessons = [PronunciationLesson(**lesson_data) for lesson_data in matching_lessons]
return LessonsResponse(lessons=lessons, total=len(lessons), level=level_id)
except HTTPException:
raise
except Exception as e:
logger.error(f"Error searching lessons by title '{title}' in level {level_id}: {str(e)}")
raise HTTPException(
status_code=status.HTTP_500_INTERNAL_SERVER_ERROR,
detail="Failed to search lessons",
)
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