-- ============================================================================
-- 基础数据查询留档（M2 基础数据管理）
--
-- 设计要点：
-- - 人员团队关系用 manager_id 自引用展开（NULL=经理本人或未分配），
--   M3 经理 12.5% 聚合与 M4 部门汇总均按此关系，无独立团队表
-- - 归属变更留痕（ownership_change_logs）对客户/业务/人员 ID 为无外键的
--   冗余固化：被引用方删除后记录仍须完整可读，join 不到时以固化值为准
-- - T+ 预留列（source_no 等）当前全部为空，同步模块（M4）上线后启用
-- ============================================================================

-- 1. 人员列表（含岗位名称与直属经理姓名；分页 + 关键字筛选）
SELECT p.id,
       p.personnel_name,
       p.phone,
       p.hire_date,
       p.is_probation,
       p.salary_standard,
       p.status,
       br.role_name,
       br.role_code,
       m.personnel_name AS manager_name
FROM personnel p
JOIN business_roles br ON br.id = p.business_role_id
LEFT JOIN personnel m ON m.id = p.manager_id
WHERE (:keyword IS NULL OR p.personnel_name LIKE CONCAT('%', :keyword, '%'))
  AND (:status IS NULL OR p.status = :status)
ORDER BY p.id DESC
LIMIT :limit OFFSET :offset;

-- 2. 某经理的团队成员（M3 经理 12.5% 聚合的取数口径）
SELECT p.id, p.personnel_name, p.business_role_id, p.status
FROM personnel p
WHERE p.manager_id = :manager_id
  AND p.status = 1;

-- 3. 人员的辐射区域与拓展计划（编辑抽屉回显，随人员整表替换维护）
SELECT region_name, remark
FROM personnel_regions
WHERE personnel_id = :personnel_id
ORDER BY id;

SELECT plan_period, plan_content, target_desc, source_no
FROM personnel_plans
WHERE personnel_id = :personnel_id
ORDER BY id;

-- 4. 产品目录（名称/规格关键字 + 类别筛选；名称+规格为组合唯一键）
SELECT id, product_name, spec_model, unit, stock_quantity, sale_price,
       product_category, status
FROM products
WHERE (:keyword IS NULL OR product_name LIKE CONCAT('%', :keyword, '%')
       OR spec_model LIKE CONCAT('%', :keyword, '%'))
  AND (:product_category IS NULL OR product_category = :product_category)
  AND (:status IS NULL OR status = :status)
ORDER BY id DESC
LIMIT :limit OFFSET :offset;

-- 5. 客户列表（公司/负责人关键字 + 分类 + 归属人员筛选）
SELECT c.id, c.company_name, c.owner_name, c.customer_type, c.status, c.owner_personnel_id,
       p.personnel_name AS owner_personnel_name
FROM customers c
LEFT JOIN personnel p ON p.id = c.owner_personnel_id
WHERE (:keyword IS NULL OR c.company_name LIKE CONCAT('%', :keyword, '%')
       OR c.owner_name LIKE CONCAT('%', :keyword, '%'))
  AND (:customer_type IS NULL OR c.customer_type = :customer_type)
  AND (:owner_personnel_id IS NULL OR c.owner_personnel_id = :owner_personnel_id)
ORDER BY c.id DESC
LIMIT :limit OFFSET :offset;

-- 6. 归属变更留痕（客户或业务维度；join 人员出姓名，人员已删时显示固化 ID）
SELECT l.id,
       l.owner_type,
       l.customer_id,
       l.business_id,
       l.old_owner_personnel_id,
       l.new_owner_personnel_id,
       po.personnel_name AS old_owner_name,
       pn.personnel_name AS new_owner_name,
       l.change_reason,
       l.operator_name,
       l.create_time
FROM ownership_change_logs l
LEFT JOIN personnel po ON po.id = l.old_owner_personnel_id
LEFT JOIN personnel pn ON pn.id = l.new_owner_personnel_id
WHERE (:customer_id IS NULL OR l.customer_id = :customer_id)
  AND (:business_id IS NULL OR l.business_id = :business_id)
ORDER BY l.create_time DESC, l.id DESC
LIMIT :limit OFFSET :offset;

-- 7. 归属变更留痕（幂等校验辅助：人员删除保护——被归属引用者不可物理删除）
SELECT COUNT(*) AS ref_count
FROM customers c
WHERE c.owner_personnel_id = :personnel_id
UNION ALL
SELECT COUNT(*)
FROM personnel m
WHERE m.manager_id = :personnel_id;