50 lines
865 B
Go
50 lines
865 B
Go
package service
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import (
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"context"
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"fmt"
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"errors"
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"github.com/PaesslerAG/gval"
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"github.com/cortezaproject/corteza/server/pkg/expr"
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)
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type (
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expression struct {
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parser gval.Language
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}
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)
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func Expression() *expression {
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return &expression{
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parser: expr.Parser(),
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}
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}
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func (svc *expression) Evaluate(ctx context.Context, expressions map[string]string, vars map[string]any) (out map[string]any, err error) {
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out = make(map[string]any, len(expressions))
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evalErrs := make(map[string]error, len(expressions))
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hasErr := false
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for k, e := range expressions {
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out[k], err = svc.parser.Evaluate(e, vars)
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evalErrs[k] = err
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hasErr = hasErr || err != nil
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}
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if !hasErr {
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return
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}
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err = nil
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errMsg := ""
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for k, e := range evalErrs {
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if e != nil {
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errMsg += fmt.Sprintf("%s: %s\n", k, e.Error())
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}
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}
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return nil, errors.New(errMsg)
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}
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