Add logic to create drop

x/market/keeper/msg_server_create_drop.go

@@ -2,17 +2,44 @@ package keeper
 
 import (
 	"context"
-
 	"onex/x/market/types"
+	"sort"
+	"strings"
 
+	"cosmossdk.io/math"
 	sdk "github.com/cosmos/cosmos-sdk/types"
 )
 
 func (k msgServer) CreateDrop(goCtx context.Context, msg *types.MsgCreateDrop) (*types.MsgCreateDropResponse, error) {
 	ctx := sdk.UnwrapSDKContext(goCtx)
 
-	// TODO: Handling the message
-	_ = ctx
+	pairMsg := strings.Split(msg.Pair, ",")
+	sort.Strings(pairMsg)
+
+	denomA := pairMsg[0]
+	denomB := pairMsg[1]
+
+	pool, found := k.GetPool(ctx, denomA, denomB)
+	if !found {
+		return nil, types.ErrPoolNotFound
+	}
+
+	if pool.Drops.Equal(math.ZeroInt()) {
+		return nil, types.ErrPoolInactive
+	}
+
+	memberA, found := k.GetMember(ctx, denomB, denomA)
+	if !found {
+		return nil, types.ErrMemberNotFound
+	}
+
+	memberB, found := k.GetMember(ctx, denomA, denomB)
+	if !found {
+		return nil, types.ErrMemberNotFound
+	}
+
+	_ = memberA
+	_ = memberB
 
 	return &types.MsgCreateDropResponse{}, nil
 }