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03_feature_envy.go
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03_feature_envy.go
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package _4_tight_coupling
import (
"errors"
"time"
)
type searchRequest struct {
query string
start time.Time
end time.Time
}
func (request searchRequest) validate() error {
if request.query == "" {
return errors.New("search term is missing")
}
if request.start.IsZero() || request.start.After(time.Now()) {
return errors.New("start time is missing or invalid")
}
if request.end.IsZero() || request.end.Before(request.start) {
return errors.New("end time is missing or invalid")
}
return nil
}
type searchResults struct {
result string
}
func doSearchWithEnvy(request searchRequest) ([]searchResults, error) {
// validate request
if request.query == "" {
return nil, errors.New("search term is missing")
}
if request.start.IsZero() || request.start.After(time.Now()) {
return nil, errors.New("start time is missing or invalid")
}
if request.end.IsZero() || request.end.Before(request.start) {
return nil, errors.New("end time is missing or invalid")
}
return performSearch(request)
}
func doSearchWithoutEnvy(request searchRequest) ([]searchResults, error) {
err := request.validate()
if err != nil {
return nil, err
}
return performSearch(request)
}
func performSearch(request searchRequest) ([]searchResults, error) {
// TODO: implement
return nil, errors.New("not implemented")
}