spec.go

// Copyright 2022 schukai GmbH
// SPDX-License-Identifier: AGPL-3.0-or-later

package negotiation

import "strings"

type spec struct {
	val string
	q   float64
}

// specs represents []spec
type specs []spec

// Len is to implement sort.Interface for Specs.
func (s specs) Len() int {
	return len(s)
}

// Swap is to implement sort.Interface for Specs.
func (s specs) Swap(i, j int) {
	s[i], s[j] = s[j], s[i]
}

// Less is to implement sort.Interface for Specs.
func (s specs) Less(i, j int) bool {
	if s[i].q > s[j].q {
		return true
	}
	if s[i].q == s[j].q {
		if s[i].val == "*" || strings.HasSuffix(s[i].val, "/*") {
			return true
		}

		if s[j].val == "*" || strings.HasSuffix(s[j].val, "/*") {
			return false
		}

		return i < j
	}

	return false
}

func (s specs) hasVal(val string) bool {
	for _, spec := range s {
		if spec.val == val {
			return true
		}
	}

	return false
}