lesson edit (add 阶段/步骤)

Html/apps/views/lessons.py

@@ -1,9 +1,10 @@
 # views/lesson.py
 from flask import Blueprint, jsonify, request, render_template, session, current_app
+from werkzeug.exceptions import BadRequest
 from bson import ObjectId
 from datetime import datetime
 from ..auth.decorators import require_role
-from ..services.course_service import load_material
+from ..services.course_service import load_material,save_materials_markdown_cos
 
 bp = Blueprint('lesson', __name__)
 
@@ -18,7 +19,7 @@ def edit_lesson_detail(material_id, chapter_name, lesson_name):
         if chapter.chapter_name == chapter_name:
             for lesson in chapter.lessons:
                 if lesson.lesson_name == lesson_name:
-                    return render_template('lesson.html', lesson=lesson.model_dump(), role="teacher", material=material.model_dump())
+                    return render_template('lesson.html', lesson=lesson.model_dump(), role="teacher", material={**material.model_dump(), "material_id": material_id}, chapter=chapter.model_dump())
     return jsonify({"message": "课时不存在"}), 404
 
 # 返回某份 markdown 文件内容（你也可以直接返回 S3/OSS 的直链）
@@ -32,10 +33,64 @@ def get_markdown_file(material_id, chapter_name, lesson_name, filename):
     }
     return demo_map.get(filename, ""), 200
 
-# 保存（更新）某一份 markdown（前端会把编辑后的文本整体传回）
-@bp.route('/api/lesson_file/<material_id>/<chapter_name>/<lesson_name>/<filename>', methods=['PUT'])
-def save_markdown_file(material_id, chapter_name, lesson_name, filename):
-    text = request.get_data(as_text=True)
-    # TODO: 写入存储，并做版本/审计
-    # 返回更新时间等
-    return jsonify({"saved": True, "updated_at": datetime.utcnow().isoformat()}), 200
+@bp.route("/api/materials/save/<material_id>/<chapter_name>/<lesson_name>", methods=['POST'])
+@require_role(roles='teacher')
+def save_materials_markdown(material_id, chapter_name, lesson_name):
+    payload = request.get_json(silent=True, force=True)
+    if not payload:
+        raise BadRequest("缺少 JSON payload")
+
+    # 基础校验
+    required_keys = ("lesson", "prompt", "score")
+    for k in required_keys:
+        if k not in payload or not isinstance(payload[k], dict):
+            raise BadRequest(f"缺少或非法字段: {k}")
+        if "cdn_link" not in payload[k] or "content" not in payload[k]:
+            raise BadRequest(f"{k} 需要包含 cdn_link 与 content 字段")
+        if not isinstance(payload[k]["cdn_link"], str) or not isinstance(payload[k]["content"], str):
+            raise BadRequest(f"{k}.cdn_link 与 {k}.content 必须为字符串")
+
+    # 可选：版本/并发控制（若你前端传了）
+    version = payload.get("version")
+
+    docs = {
+        "lesson": {
+            "cdn_link": payload["lesson"]["cdn_link"].strip(),
+            "content" : payload["lesson"]["content"]
+        },
+        "prompt": {
+            "cdn_link": payload["prompt"]["cdn_link"].strip(),
+            "content" : payload["prompt"]["content"]
+        },
+        "score": {
+            "cdn_link": payload["score"]["cdn_link"].strip(),
+            "content" : payload["score"]["content"]
+        }
+    }
+
+    # 轻量防御：限制单次大小（自行按需调整）
+    max_size = 4 * 1024 * 1024  # 2MB/份
+    for name, doc in docs.items():
+        if len(doc["content"].encode("utf-8")) > max_size:
+            raise BadRequest(f"{name} 文档过大，超过 {max_size} 字节限制")
+
+    # 调用服务层保存：写源站、刷新/回写 CDN、更新索引等
+    # 建议服务层返回新版本/新链接等元信息
+    result = save_materials_markdown_cos(
+        material_id=material_id,
+        chapter_name=chapter_name,
+        lesson_name=lesson_name,
+        docs=docs,
+        version=version,         # 可选，用于并发检测
+        actor=getattr(request, "user", None)  # 若你的鉴权中注入了当前教师
+    )
+
+    # 统一响应
+    return jsonify({
+        "ok": True,
+        "material_id": material_id,
+        "chapter_name": chapter_name,
+        "lesson_name": lesson_name,
+        "result": result  # e.g. {"lesson":{"cdn_link": "...", "version":"..."}, ...}
+    }), 200
+