[
"autonomous agent",
{
"doc_url": "https://ostable.org/bonded-stablecoin-buffer.json",
"init": "{
if (trigger.output[[asset!=base]])
bounce("only bytes payments are accepted");
if (!is_aa(params.curve_aa))
bounce("bad curve_aa");
if (!is_valid_address(params.address))
bounce("bad address");
$max_fee_percent = params.max_fee_percent OTHERWISE 1;
if (typeof($max_fee_percent) != 'number')
bounce("bad max_fee_percent");
$max_change_percent = params.max_change_percent OTHERWISE 0.5;
if (typeof($max_change_percent) != 'number')
bounce("bad max_change_percent");
}",
"messages": {
"cases": [
{
"if": "{ trigger.data.execute }",
"init": "{
$tokens2 = trigger.data.tokens2;
if (!is_integer($tokens2) OR $tokens2 <= 0)
bounce("bad tokens2");
}",
"messages": [
{
"app": "payment",
"payload": {
"asset": "base",
"outputs": [
{
"address": "{params.curve_aa}"
}
]
}
},
{
"app": "data",
"payload": {
"tokens2_to": "{params.address}",
"max_fee_percent": "{$max_fee_percent}",
"tokens2": "{$tokens2}"
}
},
{
"app": "state",
"state": "{
var['executing_at'] = mci;
var['sent'] = balance[base];
}"
}
]
},
{
"if": "{trigger.address == params.curve_aa AND var['executing_at'] == mci}",
"init": "{
$amount = trigger.output[[asset=base]];
// if the change is less than max_change_percent % of the purchase amount, send it to the user.
// Otherwise, the remaining bytes can be used to buy more tokens2
$bSendBytes = ($amount >= 1000 AND $amount <= min($max_change_percent/100 * var['sent'], 1e5));
}",
"messages": [
{
"if": "{$bSendBytes}",
"app": "payment",
"payload": {
"asset": "base",
"outputs": [
{
"address": "{params.address}"
}
]
}
},
{
"app": "state",
"state": "{
var['executing_at'] = false;
var['sent'] = false;
response['message'] = $bSendBytes ? "Done" : "Amount left: " || $amount;
}"
}
]
},
{
"messages": [
{
"app": "state",
"state": "{
// do nothing
}"
}
]
}
]
}
}
]