github.com/NpoolPlatform/chain-middleware@v0.0.0-20240228100535-eb1bcf896eb9/pkg/mw/coin/fiat/create.go (about)

     1  package coinfiat
     2  
     3  import (
     4  	"context"
     5  	"fmt"
     6  
     7  	coinfiatcrud "github.com/NpoolPlatform/chain-middleware/pkg/crud/coin/fiat"
     8  	redis2 "github.com/NpoolPlatform/go-service-framework/pkg/redis"
     9  	basetypes "github.com/NpoolPlatform/message/npool/basetypes/v1"
    10  	npool "github.com/NpoolPlatform/message/npool/chain/mw/v1/coin/fiat"
    11  
    12  	"github.com/NpoolPlatform/chain-middleware/pkg/db"
    13  	"github.com/NpoolPlatform/chain-middleware/pkg/db/ent"
    14  	"github.com/NpoolPlatform/libent-cruder/pkg/cruder"
    15  )
    16  
    17  func (h *Handler) CreateCoinFiat(ctx context.Context) (*npool.CoinFiat, error) {
    18  	lockKey := fmt.Sprintf(
    19  		"%v:%v:%v",
    20  		basetypes.Prefix_PrefixCreateCoinFiat,
    21  		*h.CoinTypeID,
    22  		*h.FiatID,
    23  	)
    24  	if err := redis2.TryLock(lockKey, 0); err != nil {
    25  		return nil, err
    26  	}
    27  	defer func() {
    28  		_ = redis2.Unlock(lockKey)
    29  	}()
    30  
    31  	h.Conds = &coinfiatcrud.Conds{
    32  		CoinTypeID: &cruder.Cond{Op: cruder.EQ, Val: *h.CoinTypeID},
    33  		FiatID:     &cruder.Cond{Op: cruder.EQ, Val: *h.FiatID},
    34  	}
    35  	exist, err := h.ExistCoinConds(ctx)
    36  	if err != nil {
    37  		return nil, err
    38  	}
    39  	if exist {
    40  		return nil, fmt.Errorf("coinfiat exist")
    41  	}
    42  
    43  	err = db.WithClient(ctx, func(_ctx context.Context, cli *ent.Client) error {
    44  		info, err := coinfiatcrud.CreateSet(
    45  			cli.CoinFiat.Create(),
    46  			&coinfiatcrud.Req{
    47  				CoinTypeID: h.CoinTypeID,
    48  				FiatID:     h.FiatID,
    49  				FeedType:   h.FeedType,
    50  			},
    51  		).Save(_ctx)
    52  		if err != nil {
    53  			return err
    54  		}
    55  
    56  		h.ID = &info.ID
    57  
    58  		return nil
    59  	})
    60  	if err != nil {
    61  		return nil, err
    62  	}
    63  
    64  	return h.GetCoinFiat(ctx)
    65  }