Definition: [
"autonomous agent",
{
"doc_url": "https://prophet.ooo/prediction-markets-tokenless.json",
"getters": "{
$lib_aa_const = "4NWNNEO5BD5EFIFRRLEEK2E6RUYBJIMP";
$get_reserve = ($yes_amount, $no_amount, $draw_amount) => ($lib_aa_const||'')#2.$get_reserve(this_address, $yes_amount, $no_amount, $draw_amount);
$get_exchange_result = ($yes_amount, $no_amount, $draw_amount) => ($lib_aa_const||'')#11.$get_exchange_result(this_address, $yes_amount, $no_amount, $draw_amount);
$get_result_for_buying_by_type = ($type, $reserve_amount) => ($lib_aa_const||'')#11.$get_result_for_buying_by_type(this_address, $type, $reserve_amount);
$get_supplies = () => {
var['supplies'] OTHERWISE {yes: 0, no: 0, draw: 0}
};
$get_user_balance = ($address) => {
var['balance_' || $address] OTHERWISE {yes: 0, no: 0, draw: 0}
};
}",
"init": "{
$lib_aa = $lib_aa_const || '';
// params
$oracle = params.oracle;
require($oracle AND is_valid_address($oracle), "oracle isn't valid");
$comparison = params.comparison OTHERWISE "==";
require($comparison == "==" OR $comparison == ">" OR $comparison == ">=" OR $comparison == "<" OR $comparison == "<=" OR $comparison == "!=", "operation is unknown");
$feed_name = params.feed_name OTHERWISE '';
require(length($feed_name) > 0 AND $feed_name != "none", "feed_name isn't valid");
$reserve_asset = params.reserve_asset OTHERWISE 'base';
require(asset[$reserve_asset].exists, "no such asset: " || $reserve_asset);
$allow_draw = params.allow_draw;
$datafeed_draw_value = params.datafeed_draw_value OTHERWISE 'none';
$datafeed_value = params.datafeed_value;
require(exists($datafeed_value), "datafeed_value does not exist");
$event_date = params.event_date OTHERWISE 0;
require(is_integer($event_date) AND $event_date > 0, "event_date must be integer");
$waiting_period_length = params.waiting_period_length OTHERWISE 5 * 24 * 3600;
require(is_integer($waiting_period_length) AND $waiting_period_length >= 0, "waiting period must be integer");
$quiet_period = params.quiet_period OTHERWISE 0;
require(is_integer($quiet_period) AND $quiet_period >= 0, "quiet period must be integer");
$issue_fee = exists(params.issue_fee) ? params.issue_fee : 0.01;
require($issue_fee >= 0 AND $issue_fee < 1, "issue_fee isn't valid");
$redeem_fee = exists(params.redeem_fee) ? params.redeem_fee : 0.02;
require($redeem_fee >= 0 AND $redeem_fee < 1, "redeem_fee isn't valid");
// helpers
$result = var['result']; // yes/no/draw
// amounts by outcome: positive = buy, negative = redeem
$trigger_amounts = {
yes: trigger.data.yes_amount OTHERWISE 0,
no: trigger.data.no_amount OTHERWISE 0,
draw: trigger.data.draw_amount OTHERWISE 0
};
$has_sale = $trigger_amounts.yes < 0 OR $trigger_amounts.no < 0 OR $trigger_amounts.draw < 0;
$end_of_waiting_period = $event_date + $waiting_period_length;
$trading_open = timestamp <= $event_date - $quiet_period OR timestamp >= $end_of_waiting_period;
$network_fee = ($reserve_asset == 'base') ? 10000 : 0;
$reserve = var['reserve'] OTHERWISE 0;
$reserve_amount = trigger.output[[asset=$reserve_asset]];
$type = trigger.data.type OTHERWISE false;
$supplies = $get_supplies();
$user_balance = $get_user_balance(trigger.address);
$sum_by_outcome = ($a, $b) => {yes: $a.yes + $b.yes, no: $a.no + $b.no, draw: $a.draw + $b.draw};
$is_non_negative = ($a) => $a.yes >= 0 AND $a.no >= 0 AND $a.draw >= 0;
$to = trigger.data.to OTHERWISE trigger.address;
if (trigger.data.to AND !is_valid_address(trigger.data.to))
bounce("bad to address");
if ($type) {
require($type == 'yes' OR $type == 'no' OR $type == 'draw', "unknown type");
}
}",
"messages": {
"cases": [
{
"if": "{!exists(trigger.data.claim_profit) AND !exists(trigger.data.add_liquidity) AND (($reserve_amount > $network_fee AND (trigger.data.yes_amount OR trigger.data.no_amount OR trigger.data.draw_amount OR trigger.data.type)) OR $has_sale)}",
"init": "{
require($allow_draw OR !exists(trigger.data.draw_amount), "draw asset does not exist");
if ((trigger.data.yes_amount OR trigger.data.no_amount OR trigger.data.draw_amount) AND trigger.data.type) {
bounce("both type and amount");
}
$min_expected_amount = trigger.data.min_expected_amount OTHERWISE 0;
if ($type AND (!is_integer($min_expected_amount) OR $min_expected_amount < 0)) {
bounce("invalid min_expected_amount");
}
if (!$trading_open) {
$error = "the trading period is closed";
return;
}
if ($result) {
$error = "result already exists";
return;
}
if ($type) {
require($reserve_amount > $network_fee, 'You sent no reserve');
$res = $lib_aa#11.$get_result_for_buying_by_type(this_address, $type, $reserve_amount);
$amounts = {
yes: $type == 'yes' ? $res.amount : 0,
no: $type == 'no' ? $res.amount : 0,
draw: $type == 'draw' ? $res.amount : 0
};
if ($res.amount < $min_expected_amount) {
$error = "amount less than minimum";
return;
}
} else {
// positive = buy, negative = sell from the sender's balance
$amounts = $trigger_amounts;
require(is_integer($amounts.yes), "invalid yes_amount");
require(is_integer($amounts.no), "invalid no_amount");
require(is_integer($amounts.draw), "invalid draw_amount");
require(-$amounts.yes <= $user_balance.yes, "not enough yes balance");
require(-$amounts.no <= $user_balance.no, "not enough no balance");
require(-$amounts.draw <= $user_balance.draw, "not enough draw balance");
$res = $lib_aa#11.$get_exchange_result(this_address, $amounts.yes, $amounts.no, $amounts.draw);
$payout = floor($res.gross_payout + $reserve_amount - $res.reserve_needed - $res.fee - $network_fee);
if ($payout < 0) {
$error = "expected reserve amount: " || ($res.reserve_needed + $res.fee + $network_fee);
return;
}
}
}",
"messages": [
{
"app": "payment",
"if": "{($payout AND $payout > 0) OR $error}",
"payload": {
"asset": "{$reserve_asset}",
"outputs": [
{
"address": "{$to}",
"amount": "{$error ? $reserve_amount - $network_fee : $payout}"
}
]
}
},
{
"app": "state",
"state": "{
if ($error) {
// a sale has nothing to refund, hard bounce; a purchase gets its reserve back by the payment above
if ($has_sale)
bounce($error);
response['error'] = $error;
return;
}
response['next_reserve'] = $res.new_reserve OTHERWISE 0;
response['next_coef'] = $res.next_coef OTHERWISE 1;
response['yes_amount'] = $amounts.yes;
response['no_amount'] = $amounts.no;
response['draw_amount'] = $amounts.draw;
response['yes_price'] = $res.yes_price;
response['no_price'] = $res.no_price;
response['draw_price'] = $res.draw_price;
var['reserve'] = $res.new_reserve;
var['coef'] = $res.next_coef;
if ($res.fee > 0){
response['fee'] = $res.fee;
}
response['arb_profit_tax'] = $res.arb_profit_tax;
$new_supplies = $sum_by_outcome($supplies, $amounts);
var['supplies'] = $new_supplies;
// sold tokens are debited from the sender, bought tokens are credited to $to
var['balance_' || trigger.address] = $sum_by_outcome($user_balance, {yes: min($amounts.yes, 0), no: min($amounts.no, 0), draw: min($amounts.draw, 0)});
var['balance_' || $to] = $sum_by_outcome($get_user_balance($to), {yes: max($amounts.yes, 0), no: max($amounts.no, 0), draw: max($amounts.draw, 0)}); // if $to == trigger.address, reads the value written just above
response['event'] = json_stringify({
type: 'trade',
user: trigger.address,
to: $to,
yes_amount: $amounts.yes,
no_amount: $amounts.no,
draw_amount: $amounts.draw,
reserve_amount: $reserve_amount - $network_fee,
payout: $payout OTHERWISE 0,
fee: $res.fee,
arb_profit_tax: $res.arb_profit_tax,
reserve: $res.new_reserve,
coef: $res.next_coef,
supplies: $new_supplies,
yes_price: $res.yes_price,
no_price: $res.no_price,
draw_price: $res.draw_price,
user_balance: $get_user_balance(trigger.address),
to_balance: trigger.data.to ? $get_user_balance($to) : false
});
require($res.new_reserve <= balance[$reserve_asset] - $payout, "new reserve state var is greater than the AA balance in the reserve asset"); // balance[] does not reflect the already sent payments, that's why we subtract $payout
require($res.new_reserve - $reserve <= $reserve_amount, "reserve grows by more than the added reserve amount");
require($is_non_negative($new_supplies), "negative supply");
require($is_non_negative($get_user_balance(trigger.address)), "negative balance of the sender");
require($is_non_negative($get_user_balance($to)), "negative balance of the recipient");
}"
}
]
},
{
"if": "{trigger.data.add_liquidity AND $reserve_amount > $network_fee}",
"init": "{
require(!$has_sale, "negative amounts are not accepted when adding liquidity");
$gross_reserve_delta = $reserve_amount - $network_fee; // gross, because it includes the fee and tax
if ($trading_open AND !$result) {
if ($supplies.yes + $supplies.no + $supplies.draw == 0) {
$yes_amount_ratio = trigger.data.yes_amount_ratio OTHERWISE 0;
require($yes_amount_ratio >= 0, 'yes ratio isnt valid');
if ($allow_draw) {
$no_amount_ratio = trigger.data.no_amount_ratio OTHERWISE 0;
require($no_amount_ratio >= 0, 'no ratio isnt valid');
$draw_amount_ratio = 1 - $yes_amount_ratio - $no_amount_ratio;
require($draw_amount_ratio >= 0, 'ratio isnt valid');
} else {
$no_amount_ratio = 1 - $yes_amount_ratio;
require($no_amount_ratio >= 0, 'yes ratio isnt valid');
}
require($yes_amount_ratio >= 0 AND $no_amount_ratio >= 0 AND $yes_amount_ratio + $no_amount_ratio + $draw_amount_ratio == 1, 'yes_amount_ratio + no_amount_ratio + draw_amount_ratio must be equal 1');
$amounts = {
yes: floor($gross_reserve_delta * sqrt($yes_amount_ratio)),
no: floor($gross_reserve_delta * sqrt($no_amount_ratio)),
draw: $allow_draw ? floor($gross_reserve_delta * sqrt($draw_amount_ratio)) : 0
};
} else {
$ratio = ($gross_reserve_delta + $reserve) / $reserve;
$amounts = {
yes: floor($ratio * $supplies.yes - $supplies.yes),
no: floor($ratio * $supplies.no - $supplies.no),
draw: floor($ratio * $supplies.draw - $supplies.draw)
};
}
} else {
$hasError = true;
}
}",
"messages": [
{
"app": "payment",
"if": "{$hasError}",
"payload": {
"asset": "{$reserve_asset}",
"outputs": [
{
"address": "{$to}",
"amount": "{$reserve_amount - $network_fee}"
}
]
}
},
{
"app": "state",
"if": "{!$hasError}",
"state": "{
$new_supplies = $sum_by_outcome($supplies, $amounts);
var['supplies'] = $new_supplies;
var['balance_' || $to] = $sum_by_outcome($get_user_balance($to), $amounts);
$target_new_reserve = $get_reserve($new_supplies.yes, $new_supplies.no, $new_supplies.draw);
$new_reserve = var['reserve'] + $gross_reserve_delta;
$next_coef = (var['coef'] OTHERWISE 1) * $new_reserve / $target_new_reserve;
var['coef'] = $next_coef;
var['reserve'] += $gross_reserve_delta;
// for stats
response['yes_amount'] = $amounts.yes;
response['no_amount'] = $amounts.no;
response['draw_amount'] = $amounts.draw;
response['next_reserve'] = var['reserve'];
response['next_coef'] = $next_coef;
response['fee'] = 0;
$new_den = sqrt($new_supplies.yes * $new_supplies.yes + $new_supplies.no * $new_supplies.no + $new_supplies.draw * $new_supplies.draw);
$new_yes_price = $next_coef * ($new_supplies.yes / $new_den);
$new_no_price = $next_coef * ($new_supplies.no / $new_den);
$new_draw_price = $next_coef * ($new_supplies.draw / $new_den);
response['yes_price'] = $new_yes_price;
response['no_price'] = $new_no_price;
response['draw_price'] = $new_draw_price;
response['event'] = json_stringify({
type: 'add_liquidity',
user: trigger.address,
to: $to,
yes_amount: $amounts.yes,
no_amount: $amounts.no,
draw_amount: $amounts.draw,
reserve_amount: $gross_reserve_delta,
reserve: $new_reserve,
coef: $next_coef,
supplies: $new_supplies,
yes_price: $new_yes_price,
no_price: $new_no_price,
draw_price: $new_draw_price,
to_balance: trigger.data.to ? $get_user_balance($to) : false
});
}"
}
]
},
{
"if": "{trigger.data.commit AND !$result}",
"init": "{
$current_datafeed_value = data_feed[[oracles=$oracle, feed_name=$feed_name, ifnone=false]];
require(exists($current_datafeed_value), "data_feed not found");
require(timestamp > $event_date, "trading period has not ended yet");
if ($comparison == '>')
$datafeed_comparison = $current_datafeed_value > $datafeed_value;
else if ($comparison == '<')
$datafeed_comparison = $current_datafeed_value < $datafeed_value;
else if ($comparison == '!=')
$datafeed_comparison = $current_datafeed_value != $datafeed_value;
else if ($comparison == '==')
$datafeed_comparison = $current_datafeed_value == $datafeed_value;
else if ($comparison == '>=')
$datafeed_comparison = $current_datafeed_value >= $datafeed_value;
else if ($comparison == '<=')
$datafeed_comparison = $current_datafeed_value <= $datafeed_value;
else
bounce('Comparison operator not found');
if ($datafeed_comparison) {
$res = 'yes';
} else if ($allow_draw AND $current_datafeed_value == $datafeed_draw_value) {
$res = 'draw';
} else {
$res = 'no';
}
}",
"messages": [
{
"app": "state",
"state": "{
var['result'] = $res;
response['messages'] = "The result is committed";
response['result'] = $res;
response['event'] = json_stringify({type: 'commit', user: trigger.address, result: $res, datafeed_value: $current_datafeed_value});
}"
}
]
},
{
"if": "{trigger.data.claim_profit}",
"init": "{
require(($reserve_asset == 'base' AND $reserve_amount == $network_fee) OR ($reserve_asset != 'base' AND $reserve_amount == 0), "should not send a reserve");
require($result, "no results yet");
$winner_amount = $user_balance[$result];
$winner_supply = $supplies[$result];
require($winner_supply > 0, "BUG winner supply = " || $winner_supply);
require($winner_amount > 0, "no winning tokens on the balance");
$payout = floor($winner_amount / $winner_supply * $reserve);
}",
"messages": [
{
"app": "payment",
"if": "{ $payout > 0 }",
"payload": {
"asset": "{$reserve_asset}",
"outputs": [
{
"address": "{$to}",
"amount": "{$payout}"
}
]
}
},
{
"app": "state",
"state": "{
response["profit"] = $payout;
$supplies[$result] = $supplies[$result] - $winner_amount;
$user_balance[$result] = 0;
var['supplies'] = $supplies;
var['reserve'] -= $payout;
var['balance_' || trigger.address] = $user_balance;
require($is_non_negative($supplies), "negative supply");
require($is_non_negative($user_balance), "negative balance");
response['event'] = json_stringify({
type: 'claim_profit',
user: trigger.address,
to: $to,
result: $result,
amount: $winner_amount,
profit: $payout,
reserve: $reserve - $payout,
supplies: $supplies,
user_balance: $user_balance
});
}"
}
]
}
]
}
}
]