// Copyright [2026] [Argus]
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.

// Package v1 provides the API for the webserver.
package v1

import (
	"fmt"
	"net/http"
)

// requireQueryParam reads a required query parameter and writes a 400 response when missing.
func requireQueryParam(
	w http.ResponseWriter,
	r *http.Request,
	name string,
) (string, bool) {
	val := r.URL.Query().Get(name)
	if val == "" {
		failRequest(
			&w,
			fmt.Errorf("missing required query parameter: %s", name),
			http.StatusBadRequest,
		)
		return "", false
	}
	return val, true
}
