// SPDX-FileCopyrightText: 2023 Olivier Charvin
// SPDX-License-Identifier: CC0-1.0

package main

import (
	"errors"
	"fmt"
	"log"
	"strconv"

	"github.com/ovh/go-ovh/ovh"
	"github.com/sethvargo/go-githubactions"
)

func main() {
	if err := run(githubactions.New()); err != nil {
		githubactions.Fatalf("%v", err)
	}
}

func run(action *githubactions.Action) error {
	var inputErr error
	getRequiredInput := func(name string) string {
		v := action.GetInput(name)
		if v == "" {
			inputErr = errors.Join(inputErr, fmt.Errorf("input %q is required", name))
		}
		return v
	}
	subDomain := getRequiredInput("subdomain")
	zoneName := getRequiredInput("domain")
	recordID := getRequiredInput("record-id")
	value := getRequiredInput("value")

	if inputErr != nil {
		return fmt.Errorf("Missing required inputs:\n%v", inputErr)
	}
	uri := fmt.Sprintf("/domain/zone/%s/record/%s", zoneName, recordID)

	endpoint := getRequiredInput("ovh-endpoint")
	ak := getRequiredInput("ovh-app-key")
	as := getRequiredInput("ovh-app-secret")
	ck := getRequiredInput("ovh-consumer-key")
	if inputErr != nil {
		return fmt.Errorf("Missing required OVH API credentials. Visit https://www.ovh.com/auth/api/createToken?PUT=%s to generate them:\n%v", uri, inputErr)
	}

	client, err := ovh.NewClient(endpoint, ak, as, ck)
	if err != nil {
		return err
	}
	log.Println("OVH Client created")

	err = client.Put(uri, struct {
		SubDomain string `json:"subDomain"`
		Target    string `json:"target"`
	}{
		SubDomain: subDomain,
		Target:    strconv.Quote(value),
	}, nil)
	if err != nil {
		return err
	}
	log.Println("DNS record updated")
	return nil
}