[
"autonomous agent",
{
"init": "{
$owner = 'JBGMJI7XSKLKNHZF26BUBWHVUZSDV3P5';
$fee = 1000;
$addr = trigger.address;
$base_inp = trigger.output[[asset=base]];
$base_key = 'base_' || trigger.address;
if($base_inp <= 0)
bounce("no inputs detected");
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(var['asset']){
$asset_key = var['asset']||'_'||trigger.address;
if($asset and var['asset'] != $asset)
bounce("not a previously defined asset");
}
else{
if($asset){
$asset_key = $asset||'_'||trigger.address;
}
else{
if(!trigger.data.asset)
bounce("a asset must be defined first time");
}
}
$ratio = 1000;//bytes per 1 asset
$max_b_to_exchange = balance[base] - $base_inp;
if($asset){
$max_a_to_exchange = balance[$asset] - $asset_inp;
}
else{
$max_a_to_exchange = 0;
}
$base_inp_in_asset = round($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 = $max_b_to_exchange+$base_inp;
$asset_amount = round(($asset_inp_in_bytes - $max_b_to_exchange)/$ratio);
}
else{
//full exchange until empty,return bfees
$byte_amount = round($asset_inp_in_bytes)+$base_inp;
$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
$asset_amount = round($max_a_to_exchange);
$byte_amount = round(($base_inp_in_asset - $max_a_to_exchange)*$ratio);
}
else{
//full exchange until empty
$asset_amount = round($base_inp_in_asset);
$byte_amount = 0;
}
}
else{
if(!trigger.data.cancel)
$deposit = true;
}
}
}",
"messages": {
"cases": [
{
"if": "{
$asset and $byte_amount and !var[$base_key]
}",
"messages": [
{
"app": "payment",
"payload": {
"asset": "base",
"outputs": [
{
"address": "{$addr}",
"amount": "{$byte_amount-$fee}"
}
]
}
},
{
"if": "{$asset_amount > 0}",
"app": "payment",
"payload": {
"asset": "{var['asset']}",
"outputs": [
{
"address": "{$addr}",
"amount": "{$asset_amount}"
}
]
}
},
{
"app": "state",
"state": "{
response['message'] = 'sold '||($asset_inp-$asset_amount)||'asset for '||($byte_amount)||' bytes';
}"
}
]
},
{
"if": "{
!$asset and $asset_amount and !var[$asset_key]
}",
"messages": [
{
"if": "{$byte_amount-$fee > 0}",
"app": "payment",
"payload": {
"asset": "base",
"outputs": [
{
"address": "{$addr}",
"amount": "{$byte_amount-$fee}"
}
]
}
},
{
"app": "payment",
"payload": {
"asset": "{var['asset']}",
"outputs": [
{
"address": "{$addr}",
"amount": "{$asset_amount}"
}
]
}
},
{
"app": "state",
"state": "{
response['message'] = 'bought '||($asset_amount)||' asset for '||($base_inp - $byte_amount)||' bytes';
}"
}
]
},
{
"if": "{
$max_b_to_exchange and var[$asset_key] and $max_b_to_exchange > 0 and var[$asset_key] > 0
}",
"init": "{
$max_to_retire = var[$asset_key]*$ratio;
if($max_b_to_exchange <= $max_to_retire){
$retire_amount = $max_b_to_exchange;
}
else{
$retire_amount = $max_to_retire;
}
}",
"messages": [
{
"app": "payment",
"payload": {
"asset": "base",
"outputs": [
{
"address": "{$addr}",
"amount": "{$retire_amount+$base_inp}"
}
]
}
},
{
"app": "state",
"state": "{
$ret_ass = round($retire_amount/$ratio);
var[$asset_key] -= $ret_ass;
response['message'] = 'retired exchanged amount (bytes)';
}"
}
]
},
{
"if": "{
$max_a_to_exchange and var[$base_key] and $max_a_to_exchange > 0 and var[$base_key] > 0
}",
"init": "{
$max_to_retire = round(var[$base_key]/$ratio);
if($max_a_to_exchange <= $max_to_retire){
$retire_amount = $max_a_to_exchange;
}
else{
$retire_amount = $max_to_retire;
}
}",
"messages": [
{
"app": "payment",
"payload": {
"asset": "base",
"outputs": [
{
"address": "{$addr}",
"amount": "{$base_inp}"
}
]
}
},
{
"app": "payment",
"payload": {
"asset": "{var['asset']}",
"outputs": [
{
"address": "{$addr}",
"amount": "{$retire_amount}"
}
]
}
},
{
"app": "state",
"state": "{
$ret_bas = $retire_amount*$ratio;
var[$base_key] -= $ret_bas;
response['message'] = 'retired exchanged amount (asset)';
}"
}
]
},
{
"if": "{
trigger.data.cancel and $max_a_to_exchange and var[$asset_key] and $max_a_to_exchange > 0 and var[$asset_key] > 0
}",
"init": "{
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-(2*$fee)}"
}
]
}
},
{
"app": "payment",
"payload": {
"asset": "{var['asset']}",
"outputs": [
{
"address": "{$addr}",
"amount": "{$retire_amount}"
}
]
}
},
{
"app": "state",
"state": "{
var[$asset_key] -= $retire_amount;
response['message'] = 'canceled order (asset)';
}"
}
]
},
{
"if": "{
trigger.data.cancel and $max_b_to_exchange and var[$base_key] and $max_b_to_exchange > 0 and var[$base_key] > 0
}",
"init": "{
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+$base_inp-(2*$fee)}"
}
]
}
},
{
"app": "state",
"state": "{
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-$fee}"
}
]
}
},
{
"app": "state",
"state": "{
if(!var['asset']){
if($asset)
var['asset'] = $asset;
else
var['asset'] = trigger.data.asset;
}
if($asset){
var[$asset_key] += $asset_inp;
response['message'] = 'deposited asset';
}
else{
var[$base_key] += $base_inp;
response['message'] = 'deposited bytes';
}
}"
}
]
}
]
}
}
]