-- ============================================================
-- 临时权限修复：学生管理员设置「分配管理范围」
-- 背景：
--   页面：学生管理员设置 / 自定义管理员 / 为【xxx】分配管理范围
--   提交接口：POST /xgStudentManagerSource/studentManagerSource/grantDeptAuth
--   后端权限：xgStudentManagerSource:studentManagerSource:grantDeptAuth
--   前端无按钮权限控制，点确定后接口 403：
--     黄条「无访问权限，可能原因：1. 用户权限不足…」
--     红字「分配失败，请重试」
--   该权限码是后加的自定义接口，菜单里往往没有对应按钮，角色也就授不了
-- 适用：
--   朱茏老师（user_id=223，角色含 3003-学生信息管理）
--   以及已经能打开本模块（已有管理员列表/授权查询权限）的同类角色
-- 执行后：
--   相关用户需重新登录，使权限缓存生效
-- ============================================================

-- ------------------------------------------------------------
-- A) 先查（只读，可单独执行）
-- ------------------------------------------------------------

-- A1. 朱茏当前角色，以及本模块相关权限（无行=该权限没有）
SELECT
  u.user_id,
  u.user_name,
  u.nick_name,
  r.role_id,
  r.role_name,
  m.menu_id,
  m.menu_name,
  m.perms
FROM sys_user u
JOIN sys_user_role ur ON ur.user_id = u.user_id
JOIN sys_role r ON r.role_id = ur.role_id
JOIN sys_role_menu rm ON rm.role_id = r.role_id
JOIN sys_menu m ON m.menu_id = rm.menu_id
WHERE u.user_id = 223
  AND (
    m.perms LIKE 'xgStudentManager%'
    OR m.menu_name LIKE '%学生管理员%'
  )
ORDER BY m.perms, r.role_id;

-- A2. 关键权限是否已具备（1=有，0=没有）
SELECT
  p.perms,
  EXISTS (
    SELECT 1
    FROM sys_user_role ur
    JOIN sys_role_menu rm ON rm.role_id = ur.role_id
    JOIN sys_menu m ON m.menu_id = rm.menu_id
    WHERE ur.user_id = 223 AND m.perms = p.perms
  ) AS has_perm
FROM (
  SELECT 'xgStudentManager:studentManager:list' AS perms
  UNION ALL SELECT 'xgStudentManagerSource:studentManagerSource:list'
  UNION ALL SELECT 'xgStudentManagerSource:studentManagerSource:query'
  UNION ALL SELECT 'xgStudentManagerSource:studentManagerSource:grantDeptAuth'
) p;

-- A3. 库里是否已有这些菜单权限码（grantDeptAuth 无行=需要下面的修复段补菜单）
SELECT menu_id, menu_name, parent_id, menu_type, perms, status, visible
FROM sys_menu
WHERE perms IN (
  'xgStudentManager:studentManager:list',
  'xgStudentManagerSource:studentManagerSource:list',
  'xgStudentManagerSource:studentManagerSource:query',
  'xgStudentManagerSource:studentManagerSource:edit',
  'xgStudentManagerSource:studentManagerSource:grantDeptAuth'
)
   OR menu_name LIKE '%学生管理员%'
ORDER BY parent_id, order_num, menu_id;

-- ============================================================
-- 以下为修复段：确认缺 grantDeptAuth 后再执行；先备份再改
-- ============================================================

-- ------------------------------------------------------------
-- 0) 修改前备份（带时间戳后缀，避免覆盖）
-- ------------------------------------------------------------
SET @bak_suffix = DATE_FORMAT(NOW(), '%Y%m%d_%H%i%s');

SET @sql_bak_menu = CONCAT(
  'CREATE TABLE IF NOT EXISTS sys_menu_bak_', @bak_suffix,
  ' AS SELECT * FROM sys_menu'
);
PREPARE stmt_bak_menu FROM @sql_bak_menu;
EXECUTE stmt_bak_menu;
DEALLOCATE PREPARE stmt_bak_menu;

SET @sql_bak_role_menu = CONCAT(
  'CREATE TABLE IF NOT EXISTS sys_role_menu_bak_', @bak_suffix,
  ' AS SELECT * FROM sys_role_menu'
);
PREPARE stmt_bak_role_menu FROM @sql_bak_role_menu;
EXECUTE stmt_bak_role_menu;
DEALLOCATE PREPARE stmt_bak_role_menu;

SELECT
  CONCAT('sys_menu_bak_', @bak_suffix) AS menu_backup_table,
  CONCAT('sys_role_menu_bak_', @bak_suffix) AS role_menu_backup_table;

-- ------------------------------------------------------------
-- 1) 解析父菜单（一条 SELECT，避免 Navicat 把 SET+子查询拆段）
--    优先级：授权关系列表菜单 > 其父级 > 同模块按钮父级 > 学生管理员设置 > 管理员列表父级
-- ------------------------------------------------------------
SET @parent_id = NULL;

SELECT picked.menu_id INTO @parent_id
FROM (
  SELECT menu_id, 1 AS ord
  FROM sys_menu
  WHERE perms = 'xgStudentManagerSource:studentManagerSource:list'
    AND menu_type IN ('C', 'M')
  UNION ALL
  SELECT parent_id, 2
  FROM sys_menu
  WHERE perms = 'xgStudentManagerSource:studentManagerSource:list'
  UNION ALL
  SELECT parent_id, 3
  FROM sys_menu
  WHERE perms IN (
    'xgStudentManagerSource:studentManagerSource:query',
    'xgStudentManagerSource:studentManagerSource:edit',
    'xgStudentManagerSource:studentManagerSource:add'
  )
  UNION ALL
  SELECT menu_id, 4
  FROM sys_menu
  WHERE menu_name LIKE '%学生管理员设置%'
    AND menu_type IN ('C', 'M')
  UNION ALL
  SELECT parent_id, 5
  FROM sys_menu
  WHERE perms = 'xgStudentManager:studentManager:list'
) picked
WHERE picked.menu_id IS NOT NULL
ORDER BY picked.ord, picked.menu_id
LIMIT 1;

SELECT @parent_id AS resolved_parent_id;

-- ------------------------------------------------------------
-- 2) 新增「分配管理范围」按钮权限（若不存在，且已解析到父菜单）
-- ------------------------------------------------------------
INSERT INTO sys_menu (
  menu_id, menu_name, parent_id, order_num, path, component, query_param,
  is_frame, is_cache, menu_type, visible, status, perms, icon,
  create_dept, create_by, create_time, update_by, update_time, remark
)
SELECT
  2005461500000000003,
  '分配管理范围',
  @parent_id,
  6,
  '',
  NULL,
  NULL,
  1,
  0,
  'F',
  '0',
  '0',
  'xgStudentManagerSource:studentManagerSource:grantDeptAuth',
  '',
  100,
  1,
  NOW(),
  1,
  NOW(),
  '补齐自定义管理员分配管理范围接口权限，解决提交403'
FROM DUAL
WHERE @parent_id IS NOT NULL
  AND NOT EXISTS (
    SELECT 1 FROM sys_menu
    WHERE perms = 'xgStudentManagerSource:studentManagerSource:grantDeptAuth'
  );

-- 父菜单没解析到时，这条会提示，且上面的 INSERT 不会写入
SELECT
  CASE
    WHEN @parent_id IS NULL THEN '未找到父菜单，未插入按钮。请先看 A3 的菜单结果，手工指定 parent_id 后再执行第 2 步'
    WHEN EXISTS (
      SELECT 1 FROM sys_menu
      WHERE perms = 'xgStudentManagerSource:studentManagerSource:grantDeptAuth'
    ) THEN 'grantDeptAuth 菜单已存在（含本次新建）'
    ELSE '未插入，请检查 sys_menu'
  END AS menu_insert_result;

-- ------------------------------------------------------------
-- 3) 给「学生信息管理」角色(3003)授权（朱茏已拥有该角色）
-- ------------------------------------------------------------
INSERT INTO sys_role_menu (role_id, menu_id)
SELECT 3003, m.menu_id
FROM sys_menu m
WHERE m.perms = 'xgStudentManagerSource:studentManagerSource:grantDeptAuth'
  AND NOT EXISTS (
    SELECT 1 FROM sys_role_menu rm
    WHERE rm.role_id = 3003 AND rm.menu_id = m.menu_id
  );

-- ------------------------------------------------------------
-- 4) 兼容：已能使用本模块的角色，一并补上分配范围权限
--    判定：已有管理员列表、授权关系查询/列表/修改，或菜单名含「学生管理员设置」
-- ------------------------------------------------------------
INSERT INTO sys_role_menu (role_id, menu_id)
SELECT DISTINCT rm.role_id, grant_menu.menu_id
FROM sys_role_menu rm
JOIN sys_menu owned ON owned.menu_id = rm.menu_id
JOIN sys_menu grant_menu
  ON grant_menu.perms = 'xgStudentManagerSource:studentManagerSource:grantDeptAuth'
WHERE (
    owned.perms IN (
      'xgStudentManager:studentManager:list',
      'xgStudentManagerSource:studentManagerSource:list',
      'xgStudentManagerSource:studentManagerSource:query',
      'xgStudentManagerSource:studentManagerSource:edit',
      'xgStudentManagerSource:studentManagerSource:add'
    )
    OR owned.menu_name LIKE '%学生管理员设置%'
  )
  AND NOT EXISTS (
    SELECT 1 FROM sys_role_menu x
    WHERE x.role_id = rm.role_id AND x.menu_id = grant_menu.menu_id
  );

-- ------------------------------------------------------------
-- 5) 校验：朱茏是否已具备分配范围权限
-- ------------------------------------------------------------
SELECT
  u.user_id,
  u.user_name,
  u.nick_name,
  r.role_id,
  r.role_name,
  m.menu_id,
  m.menu_name,
  m.perms
FROM sys_user u
JOIN sys_user_role ur ON ur.user_id = u.user_id
JOIN sys_role r ON r.role_id = ur.role_id
JOIN sys_role_menu rm ON rm.role_id = r.role_id
JOIN sys_menu m ON m.menu_id = rm.menu_id
WHERE u.user_id = 223
  AND m.perms = 'xgStudentManagerSource:studentManagerSource:grantDeptAuth';

-- 有行=已具备。无行时看她的角色是否在第 3/4 步的授权范围内
SELECT
  'xgStudentManagerSource:studentManagerSource:grantDeptAuth' AS perms,
  EXISTS (
    SELECT 1
    FROM sys_user_role ur
    JOIN sys_role_menu rm ON rm.role_id = ur.role_id
    JOIN sys_menu m ON m.menu_id = rm.menu_id
    WHERE ur.user_id = 223
      AND m.perms = 'xgStudentManagerSource:studentManagerSource:grantDeptAuth'
  ) AS has_perm;

-- ------------------------------------------------------------
-- 6) 复查是否执行成功（只读，可单独反复执行）
--    期望：menu_ready=1，role_3003_ready=1，zhulong_ready=1
-- ------------------------------------------------------------
SELECT
  EXISTS (
    SELECT 1 FROM sys_menu
    WHERE perms = 'xgStudentManagerSource:studentManagerSource:grantDeptAuth'
      AND menu_type = 'F'
      AND status = '0'
      AND parent_id IS NOT NULL
  ) AS menu_ready,
  EXISTS (
    SELECT 1
    FROM sys_role_menu rm
    JOIN sys_menu m ON m.menu_id = rm.menu_id
    WHERE rm.role_id = 3003
      AND m.perms = 'xgStudentManagerSource:studentManagerSource:grantDeptAuth'
  ) AS role_3003_ready,
  EXISTS (
    SELECT 1
    FROM sys_user u
    JOIN sys_user_role ur ON ur.user_id = u.user_id
    JOIN sys_role_menu rm ON rm.role_id = ur.role_id
    JOIN sys_menu m ON m.menu_id = rm.menu_id
    WHERE u.user_id = 223
      AND u.nick_name = '朱茏'
      AND m.perms = 'xgStudentManagerSource:studentManagerSource:grantDeptAuth'
      AND m.status = '0'
  ) AS zhulong_ready;

-- 明细：按钮挂在哪个菜单下，哪些角色拿到了
SELECT
  m.menu_id,
  m.menu_name,
  m.parent_id,
  p.menu_name AS parent_menu_name,
  m.perms,
  m.menu_type,
  m.status,
  r.role_id,
  r.role_name
FROM sys_menu m
LEFT JOIN sys_menu p ON p.menu_id = m.parent_id
LEFT JOIN sys_role_menu rm ON rm.menu_id = m.menu_id
LEFT JOIN sys_role r ON r.role_id = rm.role_id
WHERE m.perms = 'xgStudentManagerSource:studentManagerSource:grantDeptAuth'
ORDER BY r.role_id;

-- 明细：朱茏通过哪个角色拥有该权限（有行即成功）
SELECT
  u.user_id,
  u.user_name,
  u.nick_name,
  r.role_id,
  r.role_name,
  m.menu_id,
  m.menu_name,
  m.perms,
  m.status AS menu_status
FROM sys_user u
JOIN sys_user_role ur ON ur.user_id = u.user_id
JOIN sys_role r ON r.role_id = ur.role_id
JOIN sys_role_menu rm ON rm.role_id = r.role_id
JOIN sys_menu m ON m.menu_id = rm.menu_id
WHERE u.user_id = 223
  AND m.perms = 'xgStudentManagerSource:studentManagerSource:grantDeptAuth';

-- ------------------------------------------------------------
-- 回滚示例（按需执行，把后缀换成上面查出的备份表名）
-- ------------------------------------------------------------
-- DELETE FROM sys_role_menu
-- WHERE menu_id IN (
--   SELECT menu_id FROM sys_menu
--   WHERE perms = 'xgStudentManagerSource:studentManagerSource:grantDeptAuth'
-- );
-- DELETE FROM sys_menu
-- WHERE perms = 'xgStudentManagerSource:studentManagerSource:grantDeptAuth'
--   AND menu_id = 2005461500000000003;
-- -- 或整表回滚：
-- -- TRUNCATE TABLE sys_role_menu;
-- -- INSERT INTO sys_role_menu SELECT * FROM sys_role_menu_bak_YYYYMMDD_HHMMSS;
-- -- TRUNCATE TABLE sys_menu;
-- -- INSERT INTO sys_menu SELECT * FROM sys_menu_bak_YYYYMMDD_HHMMSS;