// CVSS vector parser.
package cvss

// Metric key.
type Key interface {
  // Get full name.
  Name() string

  // Get category.
  Category() Category

  // Return string representation.
  String() string
}

// CVSS metric.
type Metric interface {
  // Get metric key.
  Key() Key

  // Return string representation of metric.
  String() string
}

// CVSS metric vector.
type Vector interface {
  // Get CVSS version.
  Version() Version

  // Get CVSS vector string.
  String() string

  // Return metrics in this vector.
  Metrics() []Metric
}

// Create new CVSS vector from vector string.
func NewVector(s string) (Vector, error) {
  if len(s) > len(v31Prefix) && s[:len(v31Prefix)] == v31Prefix {
    // create CVSS v2.0 vector.
    return newV31Vector(s[len(v31Prefix):])
  } else if len(s) > len(v30Prefix) && s[:len(v30Prefix)] == v30Prefix {
    // create CVSS v3.0 vector.
    return newV30Vector(s[len(v30Prefix):])
  } else {
    // create CVSS V2 vector
    return newV2Vector(s)
  }
}