-- Allow teachers to create and manage their own lessons for schools they manage

-- Teachers can insert lessons for their managed schools
CREATE POLICY "Teachers can insert lessons for their schools"
ON "Lesson"
FOR INSERT
TO authenticated
WITH CHECK (
  requesting_user_role() = 'teacher'
  AND "teacherId" = requesting_user_id()
  AND teacher_can_manage_school("schoolId")
);

-- Teachers can update their own lessons
CREATE POLICY "Teachers can update their lessons"
ON "Lesson"
FOR UPDATE
TO authenticated
USING (
  requesting_user_role() = 'teacher'
  AND "teacherId" = requesting_user_id()
  AND teacher_can_manage_school("schoolId")
)
WITH CHECK (
  requesting_user_role() = 'teacher'
  AND "teacherId" = requesting_user_id()
  AND teacher_can_manage_school("schoolId")
);

-- Teachers can delete their own lessons
CREATE POLICY "Teachers can delete their lessons"
ON "Lesson"
FOR DELETE
TO authenticated
USING (
  requesting_user_role() = 'teacher'
  AND "teacherId" = requesting_user_id()
  AND teacher_can_manage_school("schoolId")
);