Definition: [
"autonomous agent",
{
"bounce_fees": {
"base": 10000
},
"init": "{
// constants
$domain_creation_fee = 500000; // 500,000.0 bytes
$requesting_reputation_fee = 10000; // 10,000.0 bytes
$reward_pourcentage = 1; // 1% of the balance for an evalution of an attested address
$symbolic_reward= 10; // for evaluation of not attested address
$evaluation_delay = 2*24*60*60; // 1 days
$default_domain = 'base';
$default_attestor = 'UOYYSPEE7UUW3KJAB5F4Y4AWMYMDDB4Y'; // official attestor
$reputation_word_hash = '556ec7485db6ec2596054ef0374f50e4dfbcc3962c879e9464cdca80ebdfc34e';
$evaluation_count_word_hash = '039adc37a247cfd497f19d106479ac55aab96db3ae74114c74edf8143e1eb29e';
// variables directly from triggering transaction
$user = trigger.address; // Attested user (if evaluator)
$evaluated_address = trigger.data.address; // Evaluated user address (don't have to be attested) but it is better
$domain = trigger.data.domain otherwise trigger.data.d; // Evaluation domain
$evaluation = trigger.data.evaluation otherwise trigger.data.ev; // Evaluation: 0-5 or ?
$attestator = trigger.data.attestor otherwise trigger.data.a;
// deductions
$is_requesting = $evaluation == "?";
$is_contributing = (!$is_requesting)? $evaluation >= 0 and $start <= 5 : false;
$domain = $domain otherwise $default_domain;
$attestator = $attestator otherwise $default_attestor;
// Preliminary checks
if(!$is_requesting or !$is_contributing)
bounce('Sorry, You have to specify a \'evaluation\' field in the data section. Use \'0\' to \'5\' to evaluate an address or use \'?\' to request the reputation of an address.'); // (money - bounce fee) is return automatically
if($evaluated_address==false)
bounce('Sorry, You have to specify which address you want to find reputation for. Please add an \'address\' field in the data section.');
// hashing to avoid to store the reputation openely in the dag (euh why?)
$user_hash = sha256($user);
$evaluated_address_hash = sha256($evaluated_address);
$domain_hash = sha256($domain);
$attestator_hash = sha256($attestor);
$attested_domain = sha256($domain_hash and $attested_domain);
$evaluation_hash = sha256($attested_domain and $user_hash and $evaluated_address_hash);
$reputation_hash = sha256($attested_domain and $evaluated_address_hash and $reputation_word_hash);
$evaluation_count_hash = sha256($attested_domain and $evaluated_address_hash and $evaluation_count_wordhash);
// confuse attestated address in the dag to avoid to gather information for free
// is it even possible ? $evaluated_address_confused = $evaluated_address(2);
// Attestation checks
$evaluated_is_attested = attestation[[attestors=$attestor_address, address=$evaluated_address, ifnone=0]];
$user_is_attested = attestation[[attestors=$attestor_address, address=$evaluated_address, ifnone=0]];
// state variable checks
$attested_domain_exist = var[$attested_domain];
$balance_in_attestator_scope = var[$attestator_hash];
$reputation = var[$reputation_hash];
$eval_count = var[$evaluation_count_hash];
$previous_evaluation = var[$evaluation_hash];
// Fee checks
$fee_received = trigger.output[[asset=base]].amount;
$creation_fee_received = $fee_received > $domain_creation_fee;
$requesting_fee_received = $fee_received > $getting_reputation_fee;
}",
"messages": {
"cases": [
{
"if": "{$requesting}",
"init": "{
if (!$attested_domain_exist)
bounce('Sorry, You have requested reputation for a domain-attestor pair that do not exist.');
$reputationExists = $reputation != false;
if (!$reputationExists)
bounce('Sorry, the address (user) do not have reputation in this domain-attestor pair yet. Please consider to rate this user once you interacted with him/her.');
if (!$requesting_fee_received)
bounce('Sorry, The fee to request a reputation is '|| $requesting_reputation_fee || 'bytes');
// Respond
$reputation_to_show = round($reputation,1);
if ($evaluated_is_attested){
$message = 'Reputation for domain \''|| $domain ||'\' is '||$reputation_to_show||'/5 from '||$eval_count||' votes (and the address is attested by \''||$attestor_address||'\').';
}else{
$message = 'Reputation for domain \''|| $domain ||'\' is '||$reputation_to_show||'/5 from '||$eval_count||' votes BUT the address is NOT attested by \''||$attestor_address||'\')!';
}
response['message'] = $message;
response['domain'] = $domain;
response['attestor'] = $attestor;
response['reputation'] = $reputation_to_show;
response['attestated'] = $evaluated_is_attested == true;
}",
"messages": [
{
"app": "data",
"payload": {
"message": "{$message}",
"reputation": "{$reputation}",
"is_attestated": "{$evaluated_is_attested}"
}
},
{
"app": "state",
"state": "{
var[$attestator_hash] += trigger.output[[asset=base]].amount - 1000; // 1000 is the data transfert fee approximation?
}"
}
]
},
{
"if": "{$is_contributing}",
"init": "{
if (!$attested_domain_exist and !$creation_fee_received){
bounce('Sorry, the domain-attestator pair do not exists. It can be created but the fee is \''||$domain_creation_fee || '\' bytes, this money will be used to reward the evaluators');}
if (!$user_is_attested)
bounce('Sorry, to be able give an evaluation you need to be attested by the following attestor: \''|| $attestor || '\' or it will be too easy to pump a reputation.');
$is_re_evaluation = $previous_evaluation != false;
$previous_evaluation = $is_re_evaluation? $previous_evaluation : 0;
// calculating reward
$reward = $evaluated_is_attested?
round($balance_in_attestator_scope* $reward_pourcentage /100) :
$symbolic_reward;
}",
"messages": [
{
"app": "payment",
"payload": {
"asset": "{'base'}",
"outputs": [
{
"address": "{trigger.address}",
"amount": "{$reward}"
}
]
}
},
{
"app": "state",
"state": "{
$message='';
if (!$attested_domain_exist){
var[$attested_domain]=true;
$message = $message||'Domain \''||$domain||'\' created ';
$message = $message||'in the scope the attestator \''||$attestator||'\';';
}
// update reputation
$total_score=($reputation * $eval_count);
if ($is_re_evaluation){
$new_reputation = ($total_score + ($evaluation-$previous_evaluation) / ($eval_count));
}
else{
$new_reputation = ($total_score + $evaluation) / ($eval_count+1);
var[$evaluation_count_hash] +=1;
}
var[$reputation_hash] = $new_reputation;
// record or update evaluation
var[$evaluation_hash] = $evaluation;
// update attestor balance
var[$attestator_hash] = $evaluated_is_attested - $reward;
// create messages
$message = $message||'Thank you for your contribution, ';
$message = $message||'a reward of '||$reward||'byte have been sent to you.;';
$message = $message||'New reputation of '||$evaluated_address||' is '||$reputation_to_show||'/5';
$message = $message||'New reputation of '||$evaluated_address||' is '||$reputation_to_show||'/5';
response['message'] = $message;
response['domain'] = $domain;
response['attestor'] = $attestor;
response['old_reputation'] = $reputation;
response['new_reputation'] = $new_reputation;
response['attestated'] = $evaluated_is_attested == true;
}"
}
]
}
]
}
}
]