# Domain metrics for the financial schema. The planner reads this so it can
# resolve a business term ("default rate", "loan volume") to a canonical SQL
# expression instead of guessing.

schema: financial

metrics:
  loan_default_rate:
    description: Fraction of finished loans that ended in default (status 'B'). Excludes still-running loans.
    sql: "AVG(CASE WHEN status = 'B' THEN 1.0 WHEN status = 'A' THEN 0.0 END)"
    from_table: loan
    filter: "status IN ('A','B')"
    unit: ratio

  at_risk_loan_share:
    description: Of currently running loans, the share that are in debt (status 'D').
    sql: "AVG(CASE WHEN status = 'D' THEN 1.0 WHEN status = 'C' THEN 0.0 END)"
    from_table: loan
    filter: "status IN ('C','D')"
    unit: ratio

  loan_volume:
    description: Total CZK lent.
    sql: "SUM(amount)"
    from_table: loan
    unit: CZK

  average_loan_amount:
    description: Mean loan size in CZK.
    sql: "AVG(amount)"
    from_table: loan
    unit: CZK

  transaction_volume:
    description: Total CZK moved through transactions (credits + debits, absolute).
    sql: "SUM(amount)"
    from_table: trans
    unit: CZK

  active_accounts:
    description: Distinct accounts with at least one transaction in the period.
    sql: "COUNT(DISTINCT account_id)"
    from_table: trans
    unit: count

  unemployment_rate_96:
    description: District unemployment rate in 1996 (already a percentage).
    sql: "A13"
    from_table: district
    unit: percent