@multiversx/sdk-dapp-swap/__commonjs/hooks/useSwapFormHandlers.js

A library to hold the main logic for swapping between tokens on the MultiversX blockchain

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we=({getSwapRoute:e,tolerancePercentage:r})=>{let[t,n]=(0,sr.useState)({firstAmount:"",secondAmount:""}),[i,u]=(0,sr.useState)(),o=(0,sr.useRef)(),p=(0,sr.useRef)(),c=xt(t.secondToken),d=yt({swapRoute:i,firstToken:t.firstToken,firstAmount:t.firstAmount,secondToken:t.secondToken,secondAmount:t.secondAmount}),x=f=>{if(!f){u(void 0);return}let{swapType:T,tokenInID:w,tokenOutID:g,amountIn:B,amountOut:I,pairs:A}=f;u(f);let F=T===0,k=F?I:B,P=dr({identifier:F?g:w,pairs:A}),V=Q({amount:k,decimals:P}),dt=F&&Boolean(t.firstAmount),Tt=!F&&Boolean(t.secondAmount);if(o.current){let ar=dr({identifier:f.tokenInID,pairs:A}),gt=dr({identifier:f.tokenOutID,pairs:A}),wt=Q({amount:f.amountIn,decimals:ar}),It=Q({amount:f.amountOut,decimals:gt}),At=wt,Et=It;n(Ft=>q(W({},Ft),{firstAmount:At,secondAmount:Et})),o.current=!1}else n(ar=>q(W({},ar),{firstAmount:Tt?V:ar.firstAmount,secondAmount:dt?V:ar.secondAmount}))},y=f=>{o.current||n(T=>{var I,A,F;let w=(I=T.firstToken)==null?void 0:I.value,g=(A=T.secondToken)==null?void 0:A.value;if(w!=null&&g!=null){p.current="first";let k=(F=T.firstToken)==null?void 0:F.token.decimals,C=(0,or.stringIsFloat)(f)?(0,Z.parseAmount)(f,k):"";e({amountIn:C,tokenInID:w,tokenOutID:g,tolerancePercentage:r})}return q(W({},T),{firstAmount:f,secondAmount:Boolean(f)?T.secondAmount:""})})},U=f=>{o.current||n(T=>{var I,A,F;let w=(I=T.firstToken)==null?void 0:I.value,g=(A=T.secondToken)==null?void 0:A.value;if(w!=null&&g!=null){p.current="second";let k=(F=T.secondToken)==null?void 0:F.token.decimals,C=(0,or.stringIsFloat)(f)?(0,Z.parseAmount)(f,k):"";e({amountOut:C,tokenInID:w,tokenOutID:g,tolerancePercentage:r})}return q(W({},T),{secondAmount:f,firstAmount:Boolean(f)?T.firstAmount:""})})},D=f=>{o.current||n(T=>{var I,A,F;let w=f==null?void 0:f.value,g=(I=T.secondToken)==null?void 0:I.value;if(w!=null&&g!=null){let k=(i==null?void 0:i.swapType)===0,{amountIn:C,amountOut:P}=Pr({activeRoute:i,newToken:f==null?void 0:f.token,needsParsing:k,firstToken:(A=T.firstToken)==null?void 0:A.token,secondToken:(F=T.secondToken)==null?void 0:F.token});e({amountIn:C,amountOut:P,tokenInID:w,tokenOutID:g,tolerancePercentage:r})}return q(W({},T),{firstToken:f})})},v=f=>{o.current||(n(T=>{var I,A,F;let w=f==null?void 0:f.value,g=(I=T.firstToken)==null?void 0:I.value;if(g!=null&&w!=null){let k=(i==null?void 0:i.swapType)===1,{amountIn:C,amountOut:P}=Pr({activeRoute:i,newToken:f==null?void 0:f.token,needsParsing:k,firstToken:(A=T.firstToken)==null?void 0:A.token,secondToken:(F=T.secondToken)==null?void 0:F.token});e({amountIn:C,amountOut:P,tokenInID:g,tokenOutID:w,tolerancePercentage:r})}return q(W({},T),{secondToken:f})}),!c&&t.firstAmount&&y(t.firstAmount))},rr=()=>{n(f=>{var F,k,C,P,V;let T=(F=f.firstToken)==null?void 0:F.value,w=(k=f.secondToken)==null?void 0:k.value,g=(P=(C=f.firstToken)==null?void 0:C.token.balance)!=null?P:"0",B=T===$?lt(g):g;if(!(T!=null&&w!=null))return f;let A=Q({amount:B,decimals:(V=f.firstToken)==null?void 0:V.token.decimals});return e({amountIn:B,tokenInID:T,tokenOutID:w,tolerancePercentage:r}),q(W({},f),{firstAmount:A})})},wr=()=>{n(f=>{let T=f.secondAmount,w=f.firstAmount,g=f.secondToken,B=f.firstToken,I=g==null?void 0:g.value,A=B==null?void 0:B.value;if(!(I!=null&&A!=null))return f;o.current=p.current!==void 0&&T!==""&&w!=="";let k=p.current==="first"&&w!=="",C=p.current==="second"&&T!=="";if(k){p.current="second";let P=B==null?void 0:B.token.decimals,V=(0,Z.parseAmount)(w,P);e({amountOut:V,tokenInID:I,tokenOutID:A,tolerancePercentage:r})}if(C){p.current="first";let P=g==null?void 0:g.token.decimals,V=(0,Z.parseAmount)(T,P);e({amountIn:V,tokenInID:I,tokenOutID:A,tolerancePercentage:r})}return{firstAmount:T,secondAmount:w,firstToken:g,secondToken:B}})};return{firstToken:t.firstToken,firstAmount:t.firstAmount,secondToken:t.secondToken,secondAmount:t.secondAmount,activeRoute:i,inputAmountsUsdValue:d,handleOnChangeFirstAmount:y,handleOnChangeSecondAmount:U,handleOnChangeFirstSelect:D,handleOnChangeSecondSelect:v,handleOnChangeSwapRoute:x,handleOnFirstMaxBtnChange:rr,handleSwitchTokens:wr}};0&&(module.exports={useSwapFormHandlers});
/*!
 * The buffer module from node.js, for the browser.
 *
 * @author   Feross Aboukhadijeh <https://feross.org>
 * @license  MIT
 */
/*! ieee754. BSD-3-Clause License. Feross Aboukhadijeh <https://feross.org/opensource> */
//# sourceMappingURL=useSwapFormHandlers.js.map