// query_normalize.go normalizes common query values before binding.
// Layer: adapters/inbound/httpapi request pre-processing.
package httpapi

import (
	"net/http"
	"strings"
)

func normalizeCommonQueryValue(r *http.Request, key string) {
	q := r.URL.Query()
	values, ok := q[key]
	if !ok || len(values) == 0 {
		return
	}

	normalized := strings.ToLower(strings.TrimSpace(values[0]))
	if normalized == values[0] {
		return
	}
	q.Set(key, normalized)
	r.URL.RawQuery = q.Encode()
}