package service

import (
	"strings"
)

// CookieValues returns all values for the given cookie name from a raw Cookie header.
// It preserves header order so callers can try candidates until one validates.
func CookieValues(rawHeader, cookieName string) []string {
	rawHeader = strings.TrimSpace(rawHeader)
	cookieName = strings.TrimSpace(cookieName)
	if rawHeader == "" || cookieName == "" {
		return nil
	}

	prefix := cookieName + "="
	values := make([]string, 0, 2)
	for _, part := range strings.Split(rawHeader, ";") {
		part = strings.TrimSpace(part)
		if !strings.HasPrefix(part, prefix) {
			continue
		}
		value := strings.TrimSpace(strings.TrimPrefix(part, prefix))
		if value != "" {
			values = append(values, value)
		}
	}
	return values
}