// Copyright Jan Dittberner
// SPDX-License-Identifier: GPL-3.0-or-later
//
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with this program.  If not, see <https://www.gnu.org/licenses/>.
package icinga2

import (
	"errors"
	"fmt"
	"net/url"
)

type URLValue struct {
	URL *url.URL
}

func (u *URLValue) Set(value string) error {
	var err error

	u.URL, err = url.Parse(value)
	if err != nil {
		return fmt.Errorf("could not parse URL: %w", err)
	}

	return nil
}

func (u *URLValue) String() string {
	if u.URL != nil {
		return u.URL.String()
	}

	return ""
}

type MatrixParameters struct {
	MatrixRoom   string
	MatrixServer URLValue
	MatrixToken  string
}

func (m *MatrixParameters) HasRequired() bool {
	return m.MatrixRoom != "" && m.MatrixServer.URL != nil && m.MatrixToken != ""
}

type BaseParameters struct {
	NotificationAuthorName string
	NotificationComment    string
	IcingaWeb2URL          URLValue
	LongDateTime           string
	Hostname               string
	HostDisplayName        string
	HostAddress            string
	HostAddress6           string
}

func (p BaseParameters) HasRequired() bool {
	return p.LongDateTime != "" && p.Hostname != "" && p.HostDisplayName != ""
}

type HostParameters struct {
	HostOutput string
	HostState  string
	BaseParameters
	MatrixParameters
}

func (p *HostParameters) ValidateRequired() error {
	if !p.BaseParameters.HasRequired() || !p.MatrixParameters.HasRequired() ||
		p.HostOutput == "" || p.HostState == "" {
		return errors.New("missing required fields")
	}

	return nil
}

type ServiceParameters struct {
	ServiceName        string
	ServiceDisplayName string
	ServiceOutput      string
	ServiceState       string
	BaseParameters
	MatrixParameters
}

func (p *ServiceParameters) ValidateRequired() error {
	if !p.BaseParameters.HasRequired() || !p.MatrixParameters.HasRequired() ||
		p.ServiceName == "" || p.ServiceDisplayName == "" || p.ServiceState == "" || p.ServiceOutput == "" {
		return errors.New("missing required fields")
	}

	return nil
}