eval

type ConditionEvaluator interface {
	// EvaluateRaw evaluates the condition and returns raw backend response backend.QueryDataResponse
	EvaluateRaw(ctx context.Context, now time.Time) (resp *backend.QueryDataResponse, err error)
	// Evaluate evaluates the condition and converts the response to Results
	Evaluate(ctx context.Context, now time.Time) (Results, error)
}

type EvaluationContext struct {
	Ctx  context.Context
	User *user.SignedInUser
}

type EvaluatorFactory interface {
	// Validate validates that the condition is correct. Returns nil if the condition is correct. Otherwise, error that describes the failure
	Validate(ctx EvaluationContext, condition models.Condition) error
	// BuildRuleEvaluator build an evaluator pipeline ready to evaluate a rule's query
	Create(ctx EvaluationContext, condition models.Condition) (ConditionEvaluator, error)
}

type ExecutionResults struct {
	// Condition contains the results of the condition
	Condition data.Frames

	// Results contains the results of all queries, reduce and math expressions
	Results map[string]data.Frames

	// NoData contains the DatasourceUID for RefIDs that returned no data.
	NoData map[string]string

	Error error
}

type NumberValueCapture struct {
	Var    string // RefID
	Labels data.Labels
	Value  *float64
}

type Result struct {
	Instance data.Labels
	State    State // Enum

	// Error message for Error state. should be nil if State != Error.
	Error error

	// Results contains the results of all queries, reduce and math expressions
	Results map[string]data.Frames

	// Values contains the labels and values for all Threshold, Reduce and Math expressions,
	// and all conditions of a Classic Condition that are firing. Threshold, Reduce and Math
	// expressions are indexed by their Ref ID, while conditions in a Classic Condition are
	// indexed by their Ref ID and the index of the condition. For example, B0, B1, etc.
	Values map[string]NumberValueCapture

	EvaluatedAt        time.Time
	EvaluationDuration time.Duration
	// EvaluationString is a string representation of evaluation data such
	// as EvalMatches (from "classic condition"), and in the future from operations
	// like SSE "math".
	EvaluationString string
}

type ResultMutator func(r *Result)

type Results []Result

type State int