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feat: As a user, I want to get decoded tuples from Attestation data via the subgraph #613

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merged 1 commit into from
May 29, 2024
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feat: As a user, I want to get decoded tuples from Attestation data via the subgraph #613

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33 changes: 22 additions & 11 deletions subgraph/src/attestation-registry.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -51,12 +51,17 @@ export function handleAttestationRegistered(event: AttestationRegisteredEvent):
const tempSubject = ethereum.decode("address", attestationData.subject);
attestation.subject = tempSubject ? tempSubject.toAddress() : attestationData.subject;

// Get matching Schemax
const schema = Schema.load(attestation.schema);
// Get matching Schema
const schema = Schema.load(attestationData.schemaId.toHex());

if (schema) {
// Remove the first and last characters of the schema string (the parentheses) if they exist
let tempSchema = schema.schema;
tempSchema = tempSchema.startsWith("(") ? tempSchema.substring(1) : tempSchema;
tempSchema = tempSchema.endsWith(")") ? tempSchema.substring(0, tempSchema.length - 1) : tempSchema;

// Split Schema into a "type fieldName" array
const splitSchema = schema.schema.split(",");
const splitSchema = tempSchema.split(",");

// Keep only the Schema's types
const schemaTypes = splitSchema.map<string>((item) => item.trim().split(" ")[0]);
Expand Down Expand Up @@ -86,15 +91,11 @@ export function handleAttestationRegistered(event: AttestationRegisteredEvent):

// If the decode function went through, save it as an Array of Strings
if (decoded) {
const tempStringArray: string[] = [];

// Make the decoded data into a Tuple
const tupleValue = decoded.toTuple();

// Convert every field of the Tuple into a String
for (let i = 0; i < tupleValue.length; i++) {
tempStringArray.push(valueToString(tupleValue[i]));
}
const tempStringArray: string[] = tupleToStringArray(tupleValue);

// Add this decoded Array to the Attestation Entity
attestation.decodedData =
Expand Down Expand Up @@ -211,14 +212,24 @@ export function handleVersionUpdated(event: VersionUpdated): void {
registryVersion.save();
}

function tupleToStringArray(tuple: ethereum.Tuple): string[] {
const tempStringArray: string[] = [];

for (let i = 0; i < tuple.length; i++) {
tempStringArray.push(valueToString(tuple[i]));
}

return tempStringArray;
}

function valueToString(value: ethereum.Value): string {
switch (value.kind) {
case ethereum.ValueKind.ADDRESS:
return value.toAddress().toHexString();
case ethereum.ValueKind.FIXED_BYTES:
return value.toBytes().toHexString().toLowerCase();
return value.toBytes().toHex();
case ethereum.ValueKind.BYTES:
return value.toBytes().toString();
return value.toBytes().toHex();
case ethereum.ValueKind.INT:
return value.toBigInt().toHexString();
case ethereum.ValueKind.UINT:
Expand All @@ -238,7 +249,7 @@ function valueToString(value: ethereum.Value): string {
.map<string>((item) => valueToString(item))
.toString();
case ethereum.ValueKind.TUPLE:
return "TUPLE NOT SUPPORTED";
return tupleToStringArray(value.toTuple()).toString();
default:
return "UNKNOWN TYPE";
}
Expand Down
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