package item

import (
	"context"

	"github.com/golang/protobuf/ptypes/empty"
	goa "goa.design/goa/v3/pkg"
	"google.golang.org/grpc"
	"google.golang.org/protobuf/types/known/emptypb"

	genClient "crossnokaye-interview-assignment/services/item/gen/grpc/item/client"
	genItem "crossnokaye-interview-assignment/services/item/gen/item"
)

type (
	ItemClient interface {
		GetItemRequest(ctx context.Context, id int32) (*genItem.Item, error)
		// listItems(ctx context.Context) (*Forecast, error)
		CreateItemRequest(ctx context.Context, item genItem.Item) (*genItem.Item, error)
		UpdateItemRequest(ctx context.Context, item genItem.Item) (*genItem.Item, error)
		DeleteItemRequest(ctx context.Context, id int32) (*empty.Empty, error)
	}

	// client is the client implementation.
	itemClient struct {
		getItem    goa.Endpoint
		createItem goa.Endpoint
		updateItem goa.Endpoint
		deleteItem goa.Endpoint
	}
)

// New instantiates a new forecast service client.
func New(clientConnection *grpc.ClientConn) ItemClient {
	c := genClient.NewClient(clientConnection, grpc.WaitForReady(true))
	return &itemClient{c.GetItem(), c.CreateItem(), c.UpdateItem(), c.DeleteItem()}
}

// createItemRequest implements ItemClient.
func (itemClient *itemClient) CreateItemRequest(ctx context.Context, item genItem.Item) (*genItem.Item, error) {
	res, err := itemClient.createItem(ctx, item)
	if err != nil {
		return nil, err
	}

	return res.(*genItem.Item), nil
}

// deleteItemRequest implements ItemClient.
func (itemClient *itemClient) DeleteItemRequest(ctx context.Context, id int32) (*emptypb.Empty, error) {
	panic("unimplemented")
}

// getItemRequest implements ItemClient.
func (itemClient *itemClient) GetItemRequest(ctx context.Context, id int32) (*genItem.Item, error) {
	panic("unimplemented")
}

// updateItemRequest implements ItemClient.
func (itemClient *itemClient) UpdateItemRequest(ctx context.Context, item genItem.Item) (*genItem.Item, error) {
	panic("unimplemented")
}