package disks

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

	"repository.basistech.ru/BASIS/decort-golang-sdk/internal/validators"
)

// ResizeRequest struct to resize disk
type ResizeRequest struct {
	// ID of the disk to resize
	// Required: true
	DiskID uint64 `url:"diskId" json:"diskId" validate:"required"`

	// New size of the disk in GB
	// Required: true
	Size uint64 `url:"size" json:"size" validate:"required"`
}

type wrapperResizeRequest struct {
	ResizeRequest

	AsyncMode bool `url:"async_mode" json:"async_mode"`
}

// Resize2 resize disk
// Returns 200 if disk is resized online, else will return 202,
// in that case please stop and start your machine after changing the disk size, for your changes to be reflected.
// This method will not be used for disks, assigned to "old" virtual machines. Only unassigned disks and disks, assigned with computes.
func (d Disks) Resize2(ctx context.Context, req ResizeRequest) (bool, error) {
	err := validators.ValidateRequest(req)
	if err != nil {
		return false, validators.ValidationErrors(validators.GetErrors(err))
	}

	url := "/cloudbroker/disks/resize2"

	wrappedReq := wrapperResizeRequest{
		ResizeRequest: req,
		AsyncMode:     false,
	}

	res, err := d.client.DecortApiCall(ctx, http.MethodPost, url, wrappedReq)
	if err != nil {
		return false, err
	}

	result, err := strconv.ParseBool(string(res))
	if err != nil {
		return false, err
	}

	return result, nil
}

// Resize2Async resizes disk in async mode
// Returns 200 if disk is resized online, else will return 202,
// in that case please stop and start your machine after changing the disk size, for your changes to be reflected.
// This method will not be used for disks, assigned to "old" virtual machines. Only unassigned disks and disks, assigned with computes.
func (d Disks) Resize2Async(ctx context.Context, req ResizeRequest) (string, error) {
	err := validators.ValidateRequest(req)
	if err != nil {
		return "", validators.ValidationErrors(validators.GetErrors(err))
	}

	url := "/cloudbroker/disks/resize2"

	wrappedReq := wrapperResizeRequest{
		ResizeRequest: req,
		AsyncMode:     true,
	}

	res, err := d.client.DecortApiCall(ctx, http.MethodPost, url, wrappedReq)
	if err != nil {
		return "", err
	}

	var result string
	if err := json.Unmarshal(res, &result); err != nil {
		return "", err
	}

	return result, nil
}