package vm

import (
	"context"
	"encoding/json"
	"net/http"

	"repository.basistech.ru/BASIS/dynamix-standard-go-sdk/internal/constants"
	"repository.basistech.ru/BASIS/dynamix-standard-go-sdk/internal/validators"
	"repository.basistech.ru/BASIS/dynamix-standard-go-sdk/pkg/vm/models"
	"repository.basistech.ru/BASIS/dynamix-standard-go-sdk/pkg/vm/requests"
)

type wrapperCreateVMRequest struct {
	requests.CreateVMRequest
	BootDevices []string `url:"boot_device,omitempty"`
	Device      []string `url:"device,omitempty"`
}

// Create new VM
func (vm VM) Create(ctx context.Context, req requests.CreateVMRequest) (*models.CreateVMResponse, error) {
	if len(req.Names) == 0 {
		req.Names = []string{req.Name}
	}

	res, err := vm.CreateRaw(ctx, req)
	if err != nil {
		return nil, err
	}

	item := models.CreateVMResponse{}

	err = json.Unmarshal(res, &item)
	if err != nil {
		return nil, err
	}
	return &item, nil
}

// CreateRaw return information about created VMas an array of bytes
func (vm VM) CreateRaw(ctx context.Context, req requests.CreateVMRequest) ([]byte, error) {
	if err := validators.ValidateRequest(req); err != nil {
		return nil, validators.ValidationErrors(validators.GetErrors(err))
	}

	var bootDevices []string

	if req.BootDeviceList != nil && len(req.BootDeviceList) != 0 {
		bootDevices = make([]string, 0, len(req.BootDeviceList))

		for i := range req.BootDeviceList {
			d, err := json.Marshal(req.BootDeviceList[i])
			if err != nil {
				return nil, err
			}
			bootDevices = append(bootDevices, string(d))
		}
	}

	var devices []string

	if req.Devices != nil && len(req.Devices) != 0 {
		devices = make([]string, 0, len(req.Devices))

		for i := range req.Devices {
			d, err := json.Marshal(req.Devices[i])
			if err != nil {
				return nil, err
			}
			devices = append(devices, string(d))
		}
	}

	reqWrapped := wrapperCreateVMRequest{
		CreateVMRequest: req,
		BootDevices:     bootDevices,
		Device:          devices,
	}

	url := constants.APIv0 + "/vms"

	res, err := vm.client.ApiCall(ctx, http.MethodPost, url, reqWrapped)
	return res, err
}