教师教材编辑页面

Html/apps/views/lessons.py

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+# views/lesson.py
+from flask import Blueprint, jsonify, request, render_template, session, current_app
+from bson import ObjectId
+from datetime import datetime
+from ..auth.decorators import require_role
+from ..services.course_service import load_material
+
+bp = Blueprint('lesson', __name__)
+
+# 返回课时元信息（含三份 markdown 的可访问链接或直接内容）
+@bp.route('/api/materials/<material_id>/chapters/<chapter_name>/lessons/<lesson_name>', methods=['GET'])
+@require_role(roles="teacher")
+def edit_lesson_detail(material_id, chapter_name, lesson_name):
+    teacher_uuid = session.get("user_uuid")
+    teacher_id = current_app.extensions["uuid2username"][teacher_uuid]
+    material = load_material(material_id)
+    for chapter in material.chapters:
+        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 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）
+@bp.route('/api/lesson_file/<material_id>/<chapter_name>/<lesson_name>/<filename>', methods=['GET'])
+def get_markdown_file(material_id, chapter_name, lesson_name, filename):
+    # TODO: 真实环境从存储读取
+    demo_map = {
+        "lesson.md": "# 主题\n## 阶段一\n### 步骤A\n内容A...\n### 步骤B\n内容B...\n",
+        "prompt.md": "# 主题\n## 阶段一\n### 步骤A\n提示A...\n### 步骤B\n提示B...\n",
+        "score_prompt.md": "# 主题\n## 阶段一\n### 步骤A\n评分A...\n### 步骤B\n评分B...\n"
+    }
+    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