package server

import (
	"cfTest/cloudflareApi/dns"
	"context"
	"github.com/cloudflare/cloudflare-go"
	"github.com/jinzhu/copier"
	"github.com/samber/lo"
)

type DnsServer struct {
	dns.UnimplementedDnsCloudflareServer
}

func Go2ProtoDnsRecord(goRecord *cloudflare.DNSRecord) (protoRecord *dns.DnsRecord) {
	protoRecord = new(dns.DnsRecord)
	err := copier.Copy(protoRecord, goRecord)
	if err != nil {
		return nil
	}
	protoRecord.Id = goRecord.ID
	protoRecord.ZoneId = goRecord.ZoneID
	protoRecord.Ttl = int64(goRecord.TTL)
	return
}

func Proto2GoDnsRecord(protoRecord *dns.DnsRecord) (goRecord *cloudflare.DNSRecord) {
	goRecord = new(cloudflare.DNSRecord)
	err := copier.Copy(goRecord, protoRecord)
	if err != nil {
		return nil
	}
	goRecord.TTL = int(protoRecord.Ttl)
	goRecord.ID = protoRecord.Id
	goRecord.ZoneID = protoRecord.ZoneId
	return
}

func goRecord2CreateDnsRecordParams(goRecord *cloudflare.DNSRecord) (createDnsRecordParams *cloudflare.CreateDNSRecordParams) {
	createDnsRecordParams = new(cloudflare.CreateDNSRecordParams)
	err := copier.Copy(createDnsRecordParams, goRecord)
	if err != nil {
		return nil
	}
	return
}

func goRecord2UpdateDnsRecordParams(goRecord *cloudflare.DNSRecord) (updateDnsRecordParams *cloudflare.UpdateDNSRecordParams) {
	updateDnsRecordParams = new(cloudflare.UpdateDNSRecordParams)
	err := copier.Copy(updateDnsRecordParams, goRecord)
	if err != nil {
		return nil
	}
	return
}

func (d DnsServer) List(ctx context.Context, request *dns.ListRequest) (*dns.DnsRecordList, error) {
	api, err := cloudflare.New(request.GetApiKey(), request.GetApiEmail())
	if err != nil {
		return nil, err
	}
	ctxAPI := context.Background()
	zoneIdentifier := cloudflare.ZoneIdentifier(request.ZoneId)
	records, _, err := api.ListDNSRecords(ctxAPI, zoneIdentifier, cloudflare.ListDNSRecordsParams{})
	//records, err := api.DNSRecords(ctxAPI, zoneIdentifier, cloudflare.DNSRecord{})
	if err != nil {
		return nil, err
	}

	filterMap := lo.FilterMap[cloudflare.DNSRecord, *dns.DnsRecord](records, func(record cloudflare.DNSRecord, _ int) (*dns.DnsRecord, bool) {
		protoRecord := Go2ProtoDnsRecord(&record)
		if protoRecord == nil {
			return nil, false
		}
		return protoRecord, true
	})
	return &dns.DnsRecordList{DnsRecord: filterMap}, nil
}

func (d DnsServer) Create(ctx context.Context, request *dns.DnsRecordRequest) (*dns.DnsRecord, error) {
	api, err := cloudflare.New(request.GetApiKey(), request.GetApiEmail())
	if err != nil {
		return nil, err
	}

	ctxAPI := context.Background()

	inRecord := Proto2GoDnsRecord(request.DnsRecord)
	zoneIdentifier := cloudflare.ZoneIdentifier(request.ZoneId)
	createDNSRecordParams := goRecord2CreateDnsRecordParams(inRecord)
	response, err := api.CreateDNSRecord(ctxAPI, zoneIdentifier, *createDNSRecordParams)
	if err != nil {
		return nil, err
	}
	outRecord := Go2ProtoDnsRecord(&response)
	return outRecord, nil
}

func (d DnsServer) Update(ctx context.Context, request *dns.DnsRecordRequest) (*dns.Empty, error) {
	api, err := cloudflare.New(request.GetApiKey(), request.GetApiEmail())
	if err != nil {
		return nil, err
	}
	ctxAPI := context.Background()
	inRecord := Proto2GoDnsRecord(request.DnsRecord)
	zoneIdentifier := cloudflare.ZoneIdentifier(request.ZoneId)
	updateDNSRecordParams := goRecord2UpdateDnsRecordParams(inRecord)
	_, err = api.UpdateDNSRecord(ctxAPI, zoneIdentifier, *updateDNSRecordParams)
	if err != nil {
		return nil, err
	}
	return &dns.Empty{}, nil
}

func (d DnsServer) Delete(ctx context.Context, request *dns.DeleteRequest) (*dns.Empty, error) {
	api, err := cloudflare.New(request.GetApiKey(), request.GetApiEmail())
	if err != nil {
		return nil, err
	}
	ctxAPI := context.Background()
	zoneIdentifier := cloudflare.ZoneIdentifier(request.ZoneId)
	err = api.DeleteDNSRecord(ctxAPI, zoneIdentifier, request.Id)
	if err != nil {
		return nil, err
	}
	return &dns.Empty{}, nil
}