version: 2.0 # Schema version for the Financial Digital Twin

nodes: # Define the types of nodes in the graph
  Company:
    properties:
      legalName: str
      taxId: str
      industryCode: str
      address: str
      timeSeriesId: str
  Loan:
    properties:
      loanId: str
      amount: float
      maturityDate: date
      status: str
  Security:
    properties:
      cusip: str
      isin: str
      issueDate: date
      faceValue: float
      timeSeriesId: str
  Collateral:
    properties:
      assetType: str
      appraisedValue: float
      location: str
  Individual:
    properties:
      name: str
      title: str
  Covenant:
    properties:
      type: str
      description: str
  Financials:
    properties:
      statementType: str # e.g., 10-K, 10-Q
      filingDate: date
      url: str
  Investor:
    properties:
      name: str
      type: str # e.g., Hedge Fund, Mutual Fund

edges: # Define the types of relationships between nodes
  IS_BORROWER_OF:
    source: Company
    target: Loan
  SECURED_BY:
    source: Loan
    target: Collateral
  ISSUED:
    source: Company
    target: Security
  HOLDS_POSITION_IN:
    source: Investor
    target: Security
  HAS_PARENT:
    source: Company
    target: Company
  IS_OFFICER_OF:
    source: Individual
    target: Company
  SUBJECT_TO:
    source: Loan
    target: Covenant
  HAS_FINANCIALS:
    source: Company
    target: Financials

constraints: # Define constraints on the graph structure
  - unique_company_tax_id:
      node: Company
      property: taxId
  - unique_loan_id:
      node: Loan
      property: loanId
  - unique_security_cusip:
      node: Security
      property: cusip
  - unique_security_isin:
      node: Security
      property: isin