82 lines
2.4 KiB
Python
82 lines
2.4 KiB
Python
"""数学学习系统后端入口。"""
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from __future__ import annotations
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import os
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from fastapi import FastAPI
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from fastapi.middleware.cors import CORSMiddleware
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from fastapi.staticfiles import StaticFiles
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from database import REPO_ROOT, ensure_schema
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from routers import (
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analytics,
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archive,
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auth,
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catalog,
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courses,
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data,
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ebooks,
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llm,
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knowledge_graph,
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overview,
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practice,
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question_bank,
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users,
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)
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# 启动只对齐表结构（建表 / 补列），不写任何业务数据：
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# 换成自己准备好的 math.db 后，重启即原样使用，不会被种子改动。
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# 种子数据与历史数据迁移只在初始化时执行：
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# cd backend && .venv/bin/python -m seed [--force]
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ensure_schema()
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def _cors_origins() -> list[str]:
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raw = os.getenv("CORS_ORIGINS", "http://localhost:5173,http://127.0.0.1:5173")
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return [origin.strip() for origin in raw.split(",") if origin.strip()]
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app = FastAPI(
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title="数学学习系统 API",
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description="个人数学学习系统后端：章节组卷判分、掌握度引擎、错题与学习档案。",
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version="1.0.0",
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)
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app.add_middleware(
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CORSMiddleware,
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allow_origins=_cors_origins(),
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allow_credentials=True,
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allow_methods=["*"],
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allow_headers=["*"],
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# 阅读器依赖 Range 分段加载，需要能读到这几个响应头
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expose_headers=["Accept-Ranges", "Content-Range", "Content-Length"],
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)
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app.include_router(overview.router, prefix="/api")
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app.include_router(data.router, prefix="/api")
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app.include_router(analytics.router, prefix="/api")
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app.include_router(practice.router, prefix="/api")
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app.include_router(archive.router, prefix="/api")
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app.include_router(catalog.router, prefix="/api")
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app.include_router(courses.router, prefix="/api")
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app.include_router(ebooks.router, prefix="/api")
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app.include_router(ebooks.progress_router, prefix="/api")
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app.include_router(question_bank.router, prefix="/api")
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app.include_router(llm.router, prefix="/api")
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app.include_router(auth.router, prefix="/api")
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app.include_router(users.router, prefix="/api")
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app.include_router(knowledge_graph.router, prefix="/api")
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image_dir = REPO_ROOT / "data" / "question_images"
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image_dir.mkdir(parents=True, exist_ok=True)
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app.mount(
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"/api/question-images",
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StaticFiles(directory=image_dir),
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name="question-images",
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)
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@app.get("/api/health")
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def health():
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return {"status": "ok", "service": "math-learning-backend"}
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