-- ============================================
-- 智能候选池查询SQL（当日已挂号患者）
-- 对应接口：GET /charge-manage/register/current-day-encounter
-- 用途：查询当日已挂号但未入队的患者，用于智能分诊排队管理
-- ============================================

-- 完整SQL查询（包含所有关联表）
SELECT T9.tenant_id AS tenantId,
       T9.encounter_id AS encounterId,
       T9.display_order AS displayOrder,
       T9.organization_id AS organizationId,
       T9.organization_name AS organizationName,
       T9.healthcare_name AS healthcareName,
       T9.practitioner_user_id AS practitionerUserId,
       T9.practitioner_name AS practitionerName,
       T9.contract_name AS contractName,
       T9.patient_id AS patientId,
       T9.patient_name AS patientName,
       T9.phone,
       T9.gender_enum AS genderEnum,
       T9.id_card AS idCard,
       T9.status_enum AS statusEnum,
       T9.register_time AS registerTime,
       T9.total_price AS totalPrice,
       T9.account_name AS accountName,
       T9.enterer_name AS entererName,
       T9.charge_item_ids AS chargeItemIds,
       T9.payment_id AS paymentId,
       T9.picture_url AS pictureUrl,
       T9.birth_date AS birthDate,
       COALESCE(T9.identifier_no, T9.patient_bus_no, '') AS identifierNo
FROM (
    SELECT T1.tenant_id       AS tenant_id,
           T1.id              AS encounter_id,
           T1.display_order   AS display_order,
           T1.organization_id AS organization_id,
           T2.NAME            AS organization_name,
           T3.NAME            AS healthcare_name,
           T5.user_id         AS practitioner_user_id,
           T5.NAME            AS practitioner_name,
           T7.contract_name   AS contract_name,
           T8.id              AS patient_id,
           T8.NAME            AS patient_name,
           T8.phone           AS phone,
           T8.gender_enum     AS gender_enum,
           T8.id_card         AS id_card,
           T1.status_enum     AS status_enum,
           T1.create_time     AS register_time,
           T10.total_price,
           T11."name"         AS account_name,
           T12."name"         AS enterer_name,
           T13.charge_item_ids,
           T13.id             AS payment_id,
           ai.picture_url     AS picture_url,
           T8.birth_date      AS birth_date,
           T8.bus_no          AS patient_bus_no,
           T18.identifier_no  AS identifier_no
    FROM adm_encounter AS T1
    -- 关联科室表
    LEFT JOIN adm_organization AS T2 
        ON T1.organization_id = T2.ID 
        AND T2.delete_flag = '0'
    -- 关联医疗服务类型表（号别）
    LEFT JOIN adm_healthcare_service AS T3 
        ON T1.service_type_id = T3.ID 
        AND T3.delete_flag = '0'
    -- 关联就诊参与者表（医生信息）
    LEFT JOIN (
        SELECT *
        FROM (
            SELECT *,
                   ROW_NUMBER() OVER (PARTITION BY encounter_id ORDER BY create_time ASC) AS rn
            FROM adm_encounter_participant
            WHERE delete_flag = '0'
              AND (
                  -- 如果就诊状态为"进行中"，查找"接诊医生"（admitter）
                  (type_code = 'admitter' AND EXISTS(SELECT 1
                                                     FROM adm_encounter AS T1
                                                     WHERE T1.status_enum = 2  -- IN_PROGRESS
                                                       AND T1.ID = encounter_id))
                  OR
                  -- 如果就诊状态不是"进行中"，查找"挂号医生"（registration_doctor）
                  (type_code = 'registration_doctor' AND NOT EXISTS(SELECT 1
                                                                     FROM adm_encounter AS T1
                                                                     WHERE T1.status_enum = 2  -- IN_PROGRESS
                                                                       AND T1.ID = encounter_id))
              )
        ) t
        WHERE rn = 1
    ) AS T4 ON T1.ID = T4.encounter_id
    -- 关联医生表
    LEFT JOIN adm_practitioner AS T5 
        ON T5.ID = T4.practitioner_id 
        AND T5.delete_flag = '0'
    -- 关联账户表
    LEFT JOIN adm_account AS T6
        ON T1.ID = T6.encounter_id 
        AND T6.delete_flag = '0' 
        AND T6.encounter_flag = '1'
    -- 关联合同表
    LEFT JOIN fin_contract AS T7 
        ON T6.contract_no = T7.bus_no 
        AND T7.delete_flag = '0'
    -- 关联患者表
    LEFT JOIN adm_patient AS T8 
        ON T1.patient_id = T8.ID 
        AND T8.delete_flag = '0'
    -- 关联患者标识表（身份证号等）
    LEFT JOIN (
        SELECT patient_id,
               identifier_no
        FROM (
            SELECT patient_id,
                   identifier_no,
                   ROW_NUMBER() OVER (PARTITION BY patient_id ORDER BY create_time ASC) AS rn
            FROM adm_patient_identifier
            WHERE delete_flag = '0'
              AND identifier_no IS NOT NULL
              AND identifier_no != ''
        ) t
        WHERE rn = 1
    ) AS T18 ON T8.id = T18.patient_id
    -- 关联收费项目表（挂号费）
    LEFT JOIN adm_charge_item AS T10 
        ON T1.id = T10.encounter_id 
        AND T10.delete_flag = '0'
        AND T10.context_enum = 1  -- REGISTER（挂号）
    -- 关联账户表（收费账户）
    LEFT JOIN adm_account AS T11 
        ON T10.account_id = T11.id 
        AND T11.delete_flag = '0'
    -- 关联医生表（收费医生）
    LEFT JOIN adm_practitioner AS T12 
        ON T12.ID = T10.enterer_id 
        AND T12.delete_flag = '0'
    -- 关联支付对账表（已支付）
    LEFT JOIN fin_payment_reconciliation T13
        ON T10.id::TEXT = ANY(string_to_array(T13.charge_item_ids,','))
            AND T13.delete_flag = '0'
            AND T13.status_enum = 1  -- SUCCESS（支付成功）
    -- 关联退号记录（当状态为退号时，通过relation_id关联原支付记录）
    LEFT JOIN fin_payment_reconciliation T14
        ON T13.id = T14.relation_id
            AND T14.delete_flag = '0'
            AND T14.status_enum = 3  -- REFUND（退款）
            AND T14.payment_enum = 1
    -- 关联退号医生
    LEFT JOIN adm_practitioner AS T15 
        ON T15.ID = T14.enterer_id 
        AND T15.delete_flag = '0'
    -- 关联系统用户表
    LEFT JOIN sys_user AS T17 
        ON T17.user_id = T15.user_id 
        AND T17.delete_flag = '0'
    -- 关联退号支付详情，获取退款方式（聚合多个支付方式）
    LEFT JOIN (
        SELECT reconciliation_id,
               STRING_AGG(
                   CASE pay_enum
                       WHEN 220400 THEN '现金'
                       WHEN 220100 THEN '微信'
                       WHEN 220200 THEN '支付宝'
                       WHEN 220300 THEN '银联'
                   END,
                   ','
                   ORDER BY pay_enum
               ) AS refund_method
        FROM fin_payment_rec_detail
        WHERE delete_flag = '0'
          AND amount < 0
          AND pay_enum IN (220400, 220100, 220200, 220300)
        GROUP BY reconciliation_id
    ) AS T16 ON T14.id = T16.reconciliation_id
    -- 关联发票表
    LEFT JOIN adm_invoice AS ai
        ON ai.reconciliation_id = T13.id 
        AND ai.delete_flag = '0'
    WHERE T1.delete_flag = '0'
      AND T1.class_enum = 1  -- 门诊（AMB）
      AND T10.context_enum = 1  -- 挂号（REGISTER）
      -- 动态条件（由前端传入，通过 ${ew.customSqlSegment} 注入）
      -- 例如：AND T1.create_time::DATE = CURRENT_DATE  -- 当日挂号
      -- 例如：AND T1.status_enum != 6  -- 排除退号（statusEnum = -1时）
      -- 例如：AND (T8.name LIKE '%关键词%' OR T2.name LIKE '%关键词%' ...)  -- 模糊搜索
) AS T9
-- 动态查询条件（由 MyBatis-Plus QueryWrapper 生成）
-- ${ew.customSqlSegment}
ORDER BY T9.register_time DESC;

-- ============================================
-- 简化版查询（仅查询核心字段，用于快速测试）
-- ============================================
SELECT 
    enc.id AS encounterId,
    enc.patient_id AS patientId,
    pt.name AS patientName,
    pt.birth_date AS birthDate,
    org.id AS organizationId,
    org.name AS organizationName,
    hcs.name AS healthcareName,
    pr.name AS practitionerName,
    enc.create_time AS registerTime,
    enc.status_enum AS statusEnum
FROM adm_encounter enc
INNER JOIN adm_patient pt 
    ON enc.patient_id = pt.id 
    AND pt.delete_flag = '0'
LEFT JOIN adm_organization org 
    ON enc.organization_id = org.id 
    AND org.delete_flag = '0'
LEFT JOIN adm_healthcare_service hcs 
    ON enc.service_type_id = hcs.id 
    AND hcs.delete_flag = '0'
LEFT JOIN (
    SELECT encounter_id, practitioner_id,
           ROW_NUMBER() OVER (PARTITION BY encounter_id ORDER BY create_time ASC) AS rn
    FROM adm_encounter_participant
    WHERE delete_flag = '0'
      AND type_code IN ('admitter', 'registration_doctor')
) ep ON enc.id = ep.encounter_id AND ep.rn = 1
LEFT JOIN adm_practitioner pr 
    ON ep.practitioner_id = pr.id 
    AND pr.delete_flag = '0'
INNER JOIN adm_charge_item ci 
    ON enc.id = ci.encounter_id 
    AND ci.delete_flag = '0'
    AND ci.context_enum = 1  -- 挂号
INNER JOIN fin_payment_reconciliation prc
    ON ci.id::TEXT = ANY(string_to_array(prc.charge_item_ids,','))
    AND prc.delete_flag = '0'
    AND prc.status_enum = 1  -- 支付成功
WHERE enc.delete_flag = '0'
  AND enc.class_enum = 1  -- 门诊
  AND enc.create_time::DATE = CURRENT_DATE  -- 当日挂号
  AND enc.status_enum != 6  -- 排除退号
ORDER BY enc.create_time DESC;

-- ============================================
-- 查询条件说明
-- ============================================
-- 1. 基础条件：
--    - enc.delete_flag = '0'  -- 未删除
--    - enc.class_enum = 1     -- 门诊（AMB）
--    - ci.context_enum = 1    -- 挂号（REGISTER）
--    - prc.status_enum = 1    -- 支付成功（SUCCESS）
--
-- 2. 日期过滤：
--    - enc.create_time::DATE = CURRENT_DATE  -- 当日挂号（由前端传入 date 参数）
--
-- 3. 状态过滤：
--    - enc.status_enum != 6  -- 排除退号（当 statusEnum = -1 时）
--    - enc.status_enum = 2   -- 进行中（IN_PROGRESS，用于判断医生类型）
--
-- 4. 模糊搜索（由前端传入 searchKey 参数）：
--    - patient_name（患者姓名）
--    - organization_name（科室名称）
--    - practitioner_name（医生姓名）
--    - healthcare_name（号别名称）
--    - identifier_no（身份证号）
--
-- 5. 租户过滤（由后端自动添加）：
--    - tenant_id = ?  -- 当前登录用户的租户ID
--
-- 6. 分页（由 MyBatis-Plus Page 对象处理）：
--    - LIMIT ? OFFSET ?

-- ============================================
-- 常用查询示例
-- ============================================

-- 示例1：查询今天所有已挂号患者（排除退号）
SELECT 
    enc.id AS encounterId,
    pt.name AS patientName,
    org.name AS organizationName,
    hcs.name AS healthcareName,
    pr.name AS practitionerName,
    enc.create_time AS registerTime
FROM adm_encounter enc
INNER JOIN adm_patient pt ON enc.patient_id = pt.id AND pt.delete_flag = '0'
LEFT JOIN adm_organization org ON enc.organization_id = org.id AND org.delete_flag = '0'
LEFT JOIN adm_healthcare_service hcs ON enc.service_type_id = hcs.id AND hcs.delete_flag = '0'
LEFT JOIN (
    SELECT encounter_id, practitioner_id,
           ROW_NUMBER() OVER (PARTITION BY encounter_id ORDER BY create_time ASC) AS rn
    FROM adm_encounter_participant
    WHERE delete_flag = '0' AND type_code IN ('admitter', 'registration_doctor')
) ep ON enc.id = ep.encounter_id AND ep.rn = 1
LEFT JOIN adm_practitioner pr ON ep.practitioner_id = pr.id AND pr.delete_flag = '0'
INNER JOIN adm_charge_item ci ON enc.id = ci.encounter_id AND ci.delete_flag = '0' AND ci.context_enum = 1
INNER JOIN fin_payment_reconciliation prc ON ci.id::TEXT = ANY(string_to_array(prc.charge_item_ids,','))
    AND prc.delete_flag = '0' AND prc.status_enum = 1
WHERE enc.delete_flag = '0'
  AND enc.class_enum = 1
  AND enc.create_time::DATE = CURRENT_DATE
  AND enc.status_enum != 6
ORDER BY enc.create_time DESC;

-- 示例2：查询指定科室的已挂号患者
-- 在示例1的基础上添加：
-- AND enc.organization_id = ?  -- 科室ID

-- 示例3：按患者姓名模糊搜索
-- 在示例1的基础上添加：
-- AND pt.name LIKE '%关键词%'

-- 示例4：查询已加入队列的患者（用于去重）
SELECT DISTINCT encounter_id
FROM hisdev.triage_queue_item
WHERE delete_flag = '0'
  AND queue_date = CURRENT_DATE
  AND status != 'COMPLETED';