package repository

import (
	"strconv"
	"strings"

	"be.ems/src/framework/datasource"
	"be.ems/src/framework/logger"
	"be.ems/src/framework/utils/parse"
	"be.ems/src/framework/utils/repo"
	"be.ems/src/modules/network_element/model"
)

// 实例化数据层 UDMSubImpl 结构体
var NewUDMSubImpl = &UDMSubImpl{
	selectSql: `select 
	id, msisdn, imsi, ambr, nssai, rat, arfb, sar, cn, sm_data, smf_sel, eps_dat, ne_id, eps_flag, eps_odb, hplmn_odb, ard, epstpl, context_id, apn_context, static_ip,
	tenant_name
	from u_sub_user`,

	resultMap: map[string]string{
		"id":          "ID",
		"msisdn":      "Msisdn",
		"imsi":        "Imsi",
		"ambr":        "Ambr",
		"nssai":       "Nssai",
		"rat":         "Rat",
		"arfb":        "Arfb",
		"sar":         "Sar",
		"cn":          "Cn",
		"sm_data":     "SmData",
		"smf_sel":     "SmfSel",
		"eps_dat":     "EpsDat",
		"ne_id":       "NeID",
		"eps_flag":    "EpsFlag",
		"eps_odb":     "EpsOdb",
		"hplmn_odb":   "HplmnOdb",
		"ard":         "Ard",
		"epstpl":      "Epstpl",
		"context_id":  "ContextId",
		"apn_context": "ApnContext",
		"static_ip":   "StaticIp",
		"tenant_name": "TenantName", // Tenant ID for multi-tenancy
	},
}

// UDMSubImpl UDM签约信息表 数据层处理
type UDMSubImpl struct {
	// 查询视图对象SQL
	selectSql string
	// 结果字段与实体映射
	resultMap map[string]string
}

// convertResultRows 将结果记录转实体结果组
func (r *UDMSubImpl) convertResultRows(rows []map[string]any) []model.UDMSub {
	arr := make([]model.UDMSub, 0)
	for _, row := range rows {
		item := model.UDMSub{}
		for key, value := range row {
			if keyMapper, ok := r.resultMap[key]; ok {
				repo.SetFieldValue(&item, keyMapper, value)
			}
		}
		arr = append(arr, item)
	}
	return arr
}

// ClearAndInsert 清空ne_id后新增实体
func (r *UDMSubImpl) ClearAndInsert(neID string, subArr []model.UDMSub) int64 {
	// 清空指定ne_id
	_, err := datasource.ExecDB("", "TRUNCATE TABLE u_sub_user", nil)
	if err != nil {
		logger.Errorf("TRUNCATE err => %v", err)
	}

	return r.Inserts(subArr)
}

// SelectPage 根据条件分页查询字典类型
func (r *UDMSubImpl) SelectPage(query map[string]any) map[string]any {
	// 查询条件拼接
	var conditions []string
	var params []any
	if v, ok := query["msisdn"]; ok && v != "" {
		conditions = append(conditions, "msisdn like concat(concat('%', ?), '%')")
		params = append(params, strings.Trim(v.(string), " "))
	}
	if v, ok := query["imsi"]; ok && v != "" {
		conditions = append(conditions, "imsi like concat(concat('%', ?), '%')")
		params = append(params, strings.Trim(v.(string), " "))
	}
	if v, ok := query["neId"]; ok && v != "" {
		conditions = append(conditions, "ne_id = ?")
		params = append(params, v)
	}
	// for multi-tenancy solution
	if v, ok := query["tenantName"]; ok && v != "" {
		conditions = append(conditions, "tenant_name = '?'")
		params = append(params, v)
	}

	// 构建查询条件语句
	whereSql := ""
	if len(conditions) > 0 {
		whereSql += " where " + strings.Join(conditions, " and ")
	}

	result := map[string]any{
		"total": 0,
		"rows":  []model.UDMSub{},
	}

	// 查询数量 长度为0直接返回
	totalSql := "select count(1) as 'total' from u_sub_user"
	totalRows, err := datasource.RawDB("", totalSql+whereSql, params)
	if err != nil {
		logger.Errorf("total err => %v", err)
		return result
	}
	total := parse.Number(totalRows[0]["total"])
	if total == 0 {
		return result
	} else {
		result["total"] = total
	}

	// 分页
	pageNum, pageSize := repo.PageNumSize(query["pageNum"], query["pageSize"])
	pageSql := " limit ?,? "
	params = append(params, pageNum*pageSize)
	params = append(params, pageSize)

	// 排序
	sortSql := ""
	if v, ok := query["sortField"]; ok && v != "" {
		if v == "imsi" {
			sortSql += " order by imsi "
		}
		if v == "msisdn" {
			sortSql += " order by msisdn "
		}
		if o, ok := query["sortOrder"]; ok && o != nil && v != "" {
			if o == "desc" {
				sortSql += " desc "
			} else {
				sortSql += " asc "
			}
		}
	}

	// 查询数据
	querySql := r.selectSql + whereSql + sortSql + pageSql
	results, err := datasource.RawDB("", querySql, params)
	if err != nil {
		logger.Errorf("query err => %v", err)
		return result
	}

	// 转换实体
	result["rows"] = r.convertResultRows(results)
	return result
}

// SelectList 根据实体查询
func (r *UDMSubImpl) SelectList(subUser model.UDMSub) []model.UDMSub {
	// 查询条件拼接
	var conditions []string
	var params []any
	if subUser.Imsi != "" {
		conditions = append(conditions, "imsi = ?")
		params = append(params, subUser.Imsi)
	}
	if subUser.NeID != "" {
		conditions = append(conditions, "ne_id = ?")
		params = append(params, subUser.NeID)
	}

	// 构建查询条件语句
	whereSql := ""
	if len(conditions) > 0 {
		whereSql += " where " + strings.Join(conditions, " and ")
	}

	// 查询数据
	querySql := r.selectSql + whereSql + " order by imsi asc "
	results, err := datasource.RawDB("", querySql, params)
	if err != nil {
		logger.Errorf("query err => %v", err)
	}

	// 转换实体
	return r.convertResultRows(results)
}

// Insert 新增实体
func (r *UDMSubImpl) Insert(subUser model.UDMSub) string {
	err := datasource.DefaultDB().Create(&subUser).Error
	if err != nil {
		logger.Errorf("Create err => %v", err)
	}
	return subUser.ID
}

// Insert 批量添加
func (r *UDMSubImpl) Inserts(subUser []model.UDMSub) int64 {
	tx := datasource.DefaultDB().CreateInBatches(subUser, 2000)
	if err := tx.Error; err != nil {
		logger.Errorf("CreateInBatches err => %v", err)
	}
	return tx.RowsAffected
}

// Update 修改更新
func (r *UDMSubImpl) Update(neID string, subUser model.UDMSub) int64 {
	// 查询先
	var user model.UDMSub
	err := datasource.DefaultDB().Where("imsi = ? and ne_id = ?", subUser.Imsi, neID).First(&user).Error
	if err != nil {
		logger.Errorf("Update First err => %v", err)
	}

	if user.Msisdn != subUser.Msisdn {
		user.Msisdn = subUser.Msisdn
	}
	if user.Ambr != subUser.Ambr {
		user.Ambr = subUser.Ambr
	}
	if user.Arfb != subUser.Arfb {
		user.Arfb = subUser.Arfb
	}
	if user.Sar != subUser.Sar {
		user.Sar = subUser.Sar
	}
	if user.Rat != subUser.Rat {
		user.Rat = subUser.Rat
	}
	if user.Cn != subUser.Cn {
		user.Cn = subUser.Cn
	}
	if user.SmfSel != subUser.SmfSel {
		user.SmfSel = subUser.SmfSel
	}
	if user.SmData != subUser.SmData {
		user.SmData = subUser.SmData
	}
	if user.EpsDat != subUser.EpsDat {
		user.EpsDat = subUser.EpsDat
	}
	if user.EpsFlag != subUser.EpsFlag {
		user.EpsFlag = subUser.EpsFlag
	}
	if user.EpsDat != subUser.EpsDat {
		user.EpsOdb = subUser.EpsOdb
	}
	if user.HplmnOdb != subUser.HplmnOdb {
		user.HplmnOdb = subUser.HplmnOdb
	}
	if user.Epstpl != subUser.Epstpl {
		user.Epstpl = subUser.Epstpl
	}
	if user.Ard != subUser.Ard {
		user.Ard = subUser.Ard
	}
	if user.ContextId != subUser.ContextId {
		user.ContextId = subUser.ContextId
	}
	if user.ApnContext != subUser.ApnContext {
		user.ApnContext = subUser.ApnContext
	}
	if user.StaticIp != subUser.StaticIp {
		user.StaticIp = subUser.StaticIp
	}

	tx := datasource.DefaultDB().Save(user)
	if err := tx.Error; err != nil {
		logger.Errorf("Update Save err => %v", err)
		return 0
	}
	return tx.RowsAffected
}

// Delete 删除实体
func (r *UDMSubImpl) Delete(neID, imsi string) int64 {
	tx := datasource.DefaultDB().Where("imsi = ? and ne_id = ?", imsi, neID).Delete(&model.UDMSub{})
	if err := tx.Error; err != nil {
		logger.Errorf("Delete err => %v", err)
	}
	return tx.RowsAffected
}

// DeletePrefixImsi 删除前缀匹配的实体
func (r *UDMSubImpl) DeletePrefixImsi(neID, imsi string) int64 {
	tx := datasource.DefaultDB().Where("imsi like concat(?, '%') and ne_id = ?", imsi, neID).Delete(&model.UDMSub{})
	if err := tx.Error; err != nil {
		logger.Errorf("DeletePrefixImsi err => %v", err)
	}
	return tx.RowsAffected
}

// Delete 删除范围实体
func (r *UDMSubImpl) Deletes(neID, imsi, num string) int64 {
	imsiV, err := strconv.Atoi(imsi)
	if err != nil {
		return 0
	}

	numV, err := strconv.Atoi(num)
	if err != nil {
		return 0
	}

	tx := datasource.DefaultDB().Where("imsi >= ? and imsi < ? and ne_id = ?", imsiV, imsiV+numV, neID).Delete(&model.UDMSub{})
	if err := tx.Error; err != nil {
		logger.Errorf("Deletes err => %v", err)
	}
	return tx.RowsAffected
}