package app

import (
	"context"
	"strings"

	"github.com/gogf/gf/v2/errors/gerror"
	"github.com/gogf/gf/v2/frame/g"
)

type legacyDiagnosisCard struct {
	ICCID      string `orm:"iccid"`
	IMSI       string `orm:"imsi"`
	MSISDN     string `orm:"msisdn"`
	ChannelKey string `orm:"channel_id"`
}

// Legacy channel_id references yz_card_route.cd_id, which maps to chan_key.
// The legacy route ID is not the new platform t_sim_channels.id.
func queryLegacyDiagnosisCard(ctx context.Context, code string) (*legacyDiagnosisCard, error) {
	code = strings.TrimSpace(code)
	if code == "" {
		return nil, nil
	}
	if strings.TrimSpace(g.Cfg().MustGet(ctx, "database.legacyCard.link").String()) == "" {
		return nil, gerror.New("旧平台只读数据库未配置")
	}
	var cards []*legacyDiagnosisCard
	err := g.DB("legacyCard").Model("yz_card_info c").Ctx(ctx).
		InnerJoin("yz_card_route r", "r.cd_id = c.channel_id").
		Fields("c.iccid,c.imsi,c.msisdn,r.cd_id AS channel_id").
		Where("c.iccid = ? OR c.msisdn = ? OR c.imsi = ?", code, code, code).
		Limit(2).Scan(&cards)
	if err != nil {
		return nil, gerror.New("旧平台卡信息查询失败，请稍后重试")
	}
	if len(cards) > 1 {
		return nil, gerror.New("卡号对应多张卡，无法确定通道")
	}
	if len(cards) == 0 || strings.TrimSpace(cards[0].ChannelKey) == "" {
		return nil, nil
	}
	return cards[0], nil
}