package detector

import (
	"regexp"
	"strings"
)

// Flags is list of strings describing problems found among the processes
type Flags []string

func (f *Flags) String() string {
	return strings.Join(*f, ",")
}

// Check goes over patterns and tries to flag given list of processes with flags.
func Check(processes []string) (Flags, error) {
	flags := Flags{}
	tmpFlags := make(map[string]bool)

	for _, process := range processes {
		for flag, patternSet := range patterns {
			for _, pattern := range patternSet {
				matched, err := regexp.MatchString(".*"+pattern+".*", process)
				if err != nil {
					return flags, err
				}
				if matched {
					tmpFlags[flag] = true
					break
				}
			}
		}
	}

	for flag, _ := range tmpFlags {
		flags = append(flags, flag)
	}

	return flags, nil
}