[
"autonomous agent",
{
"init": "{
$owner = 'JBGMJI7XSKLKNHZF26BUBWHVUZSDV3P5';
$fee = 1000;
$addr = trigger.address;
$bounce_fee = 10000;
$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 = var['total'];
$max_a_to_exchange = var['total_asset'];
$base_inp_in_asset = $base_inp/$ratio;
$asset_inp_in_bytes = $asset_inp*$ratio;
if($asset){
if($max_b_to_exchange and $max_b_to_exchange != 0){
//exchange
if($asset_inp_in_bytes > $max_b_to_exchange){
//partial exchange till empty,return rest
$byte_amount = $max_b_to_exchange;
$asset_amount = ($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{
$deposit = true;
}
}
else{
if($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,deposit 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{
$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": "{
var['total_asset'] += $asset_amount;
var['total'] -= $byte_amount;
response['message'] = 'exchanged asset x bytes';
}"
}
]
},
{
"if": "{
!$asset and $asset_amount and !var[$asset_key]
}",
"messages": [
{
"app": "payment",
"payload": {
"asset": "{var['asset']}",
"outputs": [
{
"address": "{$addr}",
"amount": "{$asset_amount}"
}
]
}
},
{
"app": "state",
"state": "{
var['total_asset'] -= $asset_amount;
if( ($byte_amount-$fee) <= 0){
response['message'] = 'exchanged bytes x asset';
}
else{
var['total'] += $byte_amount-$fee;
response['message'] = 'exchanged bytes x asset'||', deposited '||($byte_amount-$fee)|| ' bytes';
}
}"
}
]
},
{
"if": "{
var['total'] and var[$asset_key] and var['total'] > 0 and var[$asset_key] > 0
}",
"messages": [
{
"init": "{
$max_to_retire = var[$asset_key]*$ratio;
if(var['total'] <= $max_to_retire){
$retire_amount = var['total'];
}
else{
$retire_amount = $max_to_retire;
}
}",
"app": "payment",
"payload": {
"asset": "base",
"outputs": [
{
"address": "{$addr}",
"amount": "{$retire_amount+$base_inp}"
}
]
}
},
{
"app": "state",
"state": "{
var['total'] -= $retire_amount;
$ret_ass = $retire_amount/$ratio;
var['total_asset'] -= $ret_ass;
var[$asset_key] -= $ret_ass;
response['message'] = 'retired exchanged amount (bytes)';
}"
}
]
},
{
"if": "{
var['total_asset'] and var[$base_key] and var['total_asset'] > 0 and var[$base_key] > 0
}",
"messages": [
{
"init": "{
$max_to_retire = var[$base_key]/$ratio;
if(var['total_asset'] <= $max_to_retire){
$retire_amount = var['total_asset'];
}
else{
$retire_amount = $max_to_retire;
}
}",
"app": "payment",
"payload": {
"asset": "base",
"outputs": [
{
"address": "{$addr}",
"amount": "{$base_inp}"
}
]
}
},
{
"app": "payment",
"payload": {
"asset": "{var['asset']}",
"outputs": [
{
"address": "{$addr}",
"amount": "{$retire_amount}"
}
]
}
},
{
"app": "state",
"state": "{
var['total_asset'] -= $retire_amount;
$ret_bas = $retire_amount*$ratio;
var['total'] -= $ret_bas;
var[$base_key] -= $ret_bas;
response['message'] = 'retired exchanged amount (asset)';
}"
}
]
},
{
"if": "{
trigger.data.cancel and var['total_asset'] and var[$asset_key] and var['total_asset'] > 0 and var[$asset_key] > 0
}",
"messages": [
{
"init": "{
if(var['total_asset'] <= var[$asset_key]){
$retire_amount = var['total_asset'];
}
else{
$retire_amount = var[$asset_key];
}
}",
"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['total_asset'] -= $retire_amount;
var[$asset_key] -= $retire_amount;
response['message'] = 'canceled order (asset)';
}"
}
]
},
{
"if": "{
trigger.data.cancel and var['total'] and var[$base_key] and var['total'] > 0 and var[$base_key] > 0
}",
"messages": [
{
"init": "{
if(var['total'] <= var[$base_key]){
$retire_amount = var['total'];
}
else{
$retire_amount = var[$base_key];
}
}",
"app": "payment",
"payload": {
"asset": "base",
"outputs": [
{
"address": "{$addr}",
"amount": "{$retire_amount+$base_inp-(2*$fee)}"
}
]
}
},
{
"app": "state",
"state": "{
var['total'] -= $retire_amount;
var[$base_key] -= $retire_amount;
response['message'] = 'canceled order (bytes)';
}"
}
]
},
{
"if": "{
if(!$deposit){
bounce("f");
}
$deposit
}",
"messages": [
{
"if": "{$asset}",
"app": "payment",
"payload": {
"asset": "base",
"outputs": [
{
"address": "{$addr}",
"amount": "{$base_inp-$fee}"
}
]
}
},
{
"app": "state",
"state": "{
if(!var['asset']){
var['total_asset'] = 0;
var['total'] = 0;
if($asset)
var['asset'] = $asset;
else
var['asset'] = trigger.data.asset;
}
if($asset){
var['total_asset'] += $asset_inp;
var[$asset_key] += $asset_inp;
response['message'] = 'deposited asset';
}
else{
var['total'] += $base_inp;
var[$base_key] += $base_inp;
response['message'] = 'deposited bytes';
}
}"
}
]
}
]
}
}
]