[
"autonomous agent",
{
"init": "{
$owner = 'JBGMJI7XSKLKNHZF26BUBWHVUZSDV3P5';
$addr = trigger.address;
$base_inp = trigger.output[[asset=base]]-500;
if($base_inp <= 0)
bounce('not enough bytes for fees');
if(trigger.output[[asset!=base]].asset != 'none')
$asset = trigger.output[[asset!=base]].asset;
if($asset){
if($asset == 'ambiguous'){
bounce("only 1 asset per tx");
}
if(trigger.output[[asset!=base]] ==0)
bounce("zero asset tx");
$asset_inp = trigger.output[[asset!=base]];
}
if($asset){
$registered = var['reg_'||$asset];
}
else{
if(!trigger.data.name)
bounce('you must use a name');
$registered = var['name_'||trigger.data.name];
}
if(!$registered){
if(trigger.data.register_asset){
return;
}
else{
bounce('asset must be registered first');
}
}
$asset_ct = $asset?$asset:$registered;
$ratio_key = 'last_ratio_'||$asset_ct;
if(!var[$ratio_key] and !trigger.data.price){
bounce('price must be defined before first exchange');
}
if(trigger.data.price){
$ratio = round(trigger.data.price);//bytes per 1 asset
if($ratio <= 0){
bounce('ratio not allowed');
}
}
else{
$ratio = var[$ratio_key];
}
$base_key = 'base_'||$asset_ct ||'_'|| $addr ||'_'|| $ratio;
$asset_key = $asset_ct||'_'||trigger.address||'_'||$ratio;
$total_key = 'total'||$asset_ct||$ratio;
$total_asset_key = 'total_asset'||$asset_ct||'_'||$ratio;
$exch_key = 'ex_'||$asset_ct||$ratio;
$exch_asset_key = 'asset_ex_'||$asset_ct||'_'||$ratio;
$max_b_to_exchange = var[$total_key] - var[$exch_key];
$max_a_to_exchange = var[$total_asset_key] - var[$exch_asset_key];
$base_inp_in_asset = round($base_inp/$ratio);
$asset_inp_in_bytes = $asset_inp*$ratio;
if($asset){
if($max_b_to_exchange and $max_b_to_exchange > 0 and !trigger.data.cancel){
//exchange
if($asset_inp_in_bytes > $max_b_to_exchange){
//partial exchange till empty,return rest and bfees
$byte_amount = $max_b_to_exchange;
$asset_amount = round(($asset_inp_in_bytes - $max_b_to_exchange)/$ratio);
}
else{
//full exchange until empty,return bfees
$byte_amount = $asset_inp_in_bytes;
$asset_amount = 0;
}
}
else{
if(!trigger.data.cancel)
$deposit = true;
}
}
else{
if($max_a_to_exchange and $max_a_to_exchange > 0 and !trigger.data.cancel){
//exchange
if($base_inp_in_asset > $max_a_to_exchange){
//partial exchange till empty,return rest
$asset_amount = $max_a_to_exchange;
$byte_amount = ($base_inp_in_asset - $max_a_to_exchange)*$ratio;
}
else{
//full exchange until empty
$asset_amount = $base_inp_in_asset;
$byte_amount = 0;
}
}
else{
if(!trigger.data.cancel)
$deposit = true;
}
}
}",
"messages": {
"cases": [
{
"if": "{//register asset name
trigger.data.register_asset and $asset
}",
"messages": [
{
"app": "payment",
"payload": {
"asset": "{$asset}",
"outputs": [
{
"address": "{$addr}",
"amount": "{$asset_inp}"
}
]
}
},
{
"app": "state",
"state": "{
if(trigger.data.name){
if(var['name_'||trigger.data.name]){
bounce('name already chosen');
}
}
else{
bounce('no name defined');
}
var['reg_'||$asset] = true;
var['name_'||trigger.data.name] = $asset;
response['message'] = 'asset registered with name '||trigger.data.name;
}"
}
]
},
{
"if": "{// let retire exchanged amount (asset)
var[$exch_asset_key] and var[$base_key] and var[$exch_asset_key] > 0 and var[$base_key] > 0
}",
"init": "{
$max_to_retire = round(var[$base_key]/$ratio);
if(var[$exch_asset_key] <= $max_to_retire){
$retire_amount = var[$exch_asset_key];
}
else{
$retire_amount = $max_to_retire;
}
}",
"messages": [
{
"app": "payment",
"payload": {
"asset": "base",
"outputs": [
{
"address": "{$addr}",
"amount": "{$base_inp}"
}
]
}
},
{
"app": "payment",
"payload": {
"asset": "{$asset_ct}",
"outputs": [
{
"address": "{$addr}",
"amount": "{$retire_amount}"
}
]
}
},
{
"app": "state",
"state": "{
var[$total_asset_key] -= $retire_amount;
var[$exch_asset_key] -= $retire_amount;
$ret_bas = $retire_amount*$ratio;
var[$base_key] -= $ret_bas;
response['message'] = 'retired exchanged amount (asset)';
}"
}
]
},
{
"if": "{// let retire exchanged amount (base)
var[$exch_key] and var[$asset_key] and var[$exch_key] > 0 and var[$asset_key] > 0
}",
"init": "{
$max_to_retire = var[$asset_key]*$ratio;
if(var[$exch_key] <= $max_to_retire){
$retire_amount = var[$exch_key];
}
else{
$retire_amount = $max_to_retire;
}
}",
"messages": [
{
"app": "payment",
"payload": {
"asset": "base",
"outputs": [
{
"address": "{$addr}",
"amount": "{$retire_amount+$base_inp}"
}
]
}
},
{
"app": "state",
"state": "{
var[$total_key] -= $retire_amount;
var[$exch_key] -= $retire_amount;
$ret_ass = round($retire_amount/$ratio);
var[$asset_key] -= $ret_ass;
response['message'] = 'retired exchanged amount (bytes)';
}"
}
]
},
{
"if": "{//exchange asset x bytes
$asset and $byte_amount and !var[$base_key]
}",
"messages": [
{
"app": "payment",
"payload": {
"asset": "base",
"outputs": [
{
"address": "{$addr}",
"amount": "{$byte_amount+$base_inp}"
}
]
}
},
{
"if": "{$asset_amount > 0}",
"app": "payment",
"payload": {
"asset": "{$asset_ct}",
"outputs": [
{
"address": "{$addr}",
"amount": "{$asset_amount}"
}
]
}
},
{
"app": "state",
"state": "{
var[$total_asset_key] += $asset_inp-$asset_amount;
var[$exch_asset_key] += $asset_inp-$asset_amount;
var[$total_key] -= $byte_amount;
var[$ratio_key] = $ratio;
response['message'] = 'sold '||($asset_inp-$asset_amount)||'asset for '||($byte_amount)||' bytes';
}"
}
]
},
{
"if": "{//exchange bytes x asset
!$asset and $asset_amount and !var[$asset_key]
}",
"messages": [
{
"if": "{$byte_amount > 0}",
"app": "payment",
"payload": {
"asset": "base",
"outputs": [
{
"address": "{$addr}",
"amount": "{$byte_amount}"
}
]
}
},
{
"app": "payment",
"payload": {
"asset": "{$asset_ct}",
"outputs": [
{
"address": "{$addr}",
"amount": "{$asset_amount}"
}
]
}
},
{
"app": "state",
"state": "{
var[$total_key] += $base_inp - $byte_amount;
var[$total_asset_key] -= $asset_amount;
var[$exch_key] += $base_inp - $byte_amount;
var[$ratio_key] = $ratio;
response['message'] = 'bought '||($asset_amount)||' asset for '||($base_inp - $byte_amount)||' bytes';
}"
}
]
},
{
"if": "{// let cancel order (asset)
trigger.data.cancel and var[$asset_key] and var[$asset_key] > 0
}",
"init": "{
if($max_a_to_exchange <= 0){
bounce('Not allowed');
}
if($max_a_to_exchange <= var[$asset_key]){
$retire_amount = $max_a_to_exchange;
}
else{
$retire_amount = var[$asset_key];
}
}",
"messages": [
{
"app": "payment",
"payload": {
"asset": "base",
"outputs": [
{
"address": "{$addr}",
"amount": "{$base_inp}"
}
]
}
},
{
"app": "payment",
"payload": {
"asset": "{$asset_ct}",
"outputs": [
{
"address": "{$addr}",
"amount": "{$retire_amount}"
}
]
}
},
{
"app": "state",
"state": "{
var[$total_asset_key] -= $retire_amount;
var[$asset_key] -= $retire_amount;
response['message'] = 'canceled order (asset)';
}"
}
]
},
{
"if": "{// let cancel order (base)
trigger.data.cancel and var[$base_key] and var[$base_key] > 0
}",
"init": "{
if($max_b_to_exchange <= 0){
bounce('Not allowed');
}
if($max_b_to_exchange <= var[$base_key]){
$retire_amount = $max_b_to_exchange ;
}
else{
$retire_amount = var[$base_key];
}
}",
"messages": [
{
"app": "payment",
"payload": {
"asset": "base",
"outputs": [
{
"address": "{$addr}",
"amount": "{$retire_amount+$base_inp}"
}
]
}
},
{
"app": "state",
"state": "{
var[$total_key] -= $retire_amount;
var[$base_key] -= $retire_amount;
response['message'] = 'canceled order (bytes)';
}"
}
]
},
{
"if": "{
if(!$deposit){
bounce("Deposit not allowed, please cancel order first");
}
$deposit
}",
"messages": [
{
"if": "{$asset}",
"app": "payment",
"payload": {
"asset": "base",
"outputs": [
{
"address": "{$addr}",
"amount": "{$base_inp}"
}
]
}
},
{
"app": "state",
"state": "{
if($asset){
var[$total_asset_key] += $asset_inp;
var[$asset_key] += $asset_inp;
response['message'] = 'deposited asset';
}
else{
var[$total_key] += $base_inp;
var[$base_key] += $base_inp;
response['message'] = 'deposited bytes';
}
}"
}
]
}
]
}
}
]