{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "$id": "https://raw.githubusercontent.com/api-evangelist/tazama/main/json-schema/tazama-transaction-response-schema.json",
  "title": "Tazama Transaction Response",
  "description": "Response schema returned by the Tazama Transaction Monitoring Service after evaluating an ISO 20022 transaction message for fraud and AML compliance.",
  "type": "object",
  "properties": {
    "message": {
      "type": "string",
      "description": "Human-readable evaluation result message",
      "examples": ["Transaction is valid", "Transaction flagged for review"]
    },
    "data": {
      "type": "object",
      "description": "Additional evaluation data including rule results and typology scores",
      "properties": {
        "ruleResults": {
          "type": "array",
          "description": "Results from individual rule processor evaluations",
          "items": {
            "$ref": "#/$defs/RuleResult"
          }
        },
        "typologyScores": {
          "type": "array",
          "description": "Aggregated typology scores from rule results",
          "items": {
            "$ref": "#/$defs/TypologyScore"
          }
        },
        "decision": {
          "type": "string",
          "description": "Overall decision from the Transaction Aggregation and Decisioning Processor",
          "enum": ["ACCEPT", "BLOCK", "REVIEW"]
        }
      },
      "additionalProperties": true
    }
  },
  "$defs": {
    "RuleResult": {
      "type": "object",
      "description": "Result from a single rule processor evaluation",
      "properties": {
        "ruleId": {
          "type": "string",
          "description": "Unique identifier for the rule"
        },
        "ruleDescription": {
          "type": "string",
          "description": "Human-readable description of the rule"
        },
        "score": {
          "type": "number",
          "description": "Numeric score from the rule evaluation"
        },
        "threshold": {
          "type": "number",
          "description": "Threshold value for the rule"
        },
        "triggered": {
          "type": "boolean",
          "description": "Whether the rule was triggered"
        }
      }
    },
    "TypologyScore": {
      "type": "object",
      "description": "Aggregated score for a fraud/AML typology",
      "properties": {
        "typologyId": {
          "type": "string",
          "description": "Unique identifier for the typology"
        },
        "typologyDescription": {
          "type": "string",
          "description": "Description of the fraud or money laundering pattern"
        },
        "score": {
          "type": "number",
          "description": "Aggregated typology score"
        },
        "threshold": {
          "type": "number",
          "description": "Alert threshold for this typology"
        },
        "alertGenerated": {
          "type": "boolean",
          "description": "Whether an alert was generated for this typology"
        }
      }
    }
  }
}