{
  "principal": {
    "min": 500,
    "max": 200000,
    "currency": "Php",
    "decimals": 2,
    "default_display_precision": 2
  },
  "loan_amount": {
    "min": 1000,
    "max": 500000,
    "currency": "Php",
    "decimals": 2,
    "default_display_precision": 2
  },
  "investment_amount": {
    "min": 100,
    "max": 100000,
    "currency": "Php",
    "decimals": 2,
    "default_display_precision": 2
  },
  "future_value": {
    "min": 1000,
    "max": 1000000,
    "currency": "Php",
    "decimals": 2,
    "default_display_precision": 2
  },
  "interest_amount": {
    "min": 50,
    "max": 50000,
    "currency": "Php",
    "decimals": 2,
    "default_display_precision": 2
  },
  "payment_amount": {
    "min": 100,
    "max": 50000,
    "currency": "Php",
    "decimals": 2,
    "default_display_precision": 2
  },
  "simple_interest_rate_annual": {
    "min": 0.02,
    "max": 0.25,
    "unit_display": "% per annum",
    "internal_precision": 8,
    "display_precision": 2
  },
  "compound_interest_rate_nominal": {
    "min": 0.03,
    "max": 0.18,
    "unit_display": "%",
    "internal_precision": 8,
    "display_precision": 2
  },
  "interest_rate_per_period_effective": {
    "min": 0.005,
    "max": 0.05,
    "unit_display": "% per period",
    "internal_precision": 8,
    "display_precision": 3
  },
  "discount_rate_bankers": {
    "min": 0.05,
    "max": 0.20,
    "unit_display": "%",
    "internal_precision": 8,
    "display_precision": 2
  },
  "time_years": {
    "min": 1,
    "max": 20,
    "unit": "years",
    "integer": true,
    "allow_fractional_if_months_also_present": true
  },
  "time_months": {
    "min": 1,
    "max": 48,
    "unit": "months",
    "integer": true
  },
  "time_days": {
    "min": 10,
    "max": 360,
    "unit": "days",
    "integer": true
  },
  "number_of_periods_general": {
    "min": 2,
    "max": 60,
    "unit": "periods",
    "integer": true
  },
  "loan_payment_count": {
    "min": 2,
    "max": 5,
    "integer": true
  },
  "compounding_frequency_options": {
    "annually": 1,
    "semi-annually": 2,
    "quarterly": 4,
    "monthly": 12,
    "bi-monthly": 6,
    "semi-monthly": 24
  },
  "gradient_amount": {
    "min": 100,
    "max": 5000,
    "currency": "Php",
    "decimals": 2,
    "default_display_precision": 2
  },
  "date_general": {
    "description": "General date, used for start_date and end_date generation.",
    "type": "date",
    "min_year": 1990,
    "max_year": 2030
  },
  "time_days_exact_ordinary": {
    "description": "Number of days for exact/ordinary interest calculations (derived from dates).",
    "type": "integer",
    "min": 30,
    "max": 730,
    "unit": "days",
    "display_precision": 0
  },
  "time_base_days_exact_ordinary": {
    "description": "Time base in days for exact (365/366) or ordinary (360) interest.",
    "type": "integer",
    "options": [
      360,
      365,
      366
    ],
    "unit": "days",
    "display_precision": 0
  },
  "time_years_fractional": {
    "description": "Time period as a fraction of a year (calculated).",
    "type": "float",
    "unit": "years",
    "display_precision": 6
  },
  "date_period_generation": {
    "description": "Parameters for generating random date periods.",
    "min_days": 30,
    "max_days": 730,
    "base_year_start": 1990,
    "base_year_end": 2030
  }
}