package server

import (
	"context"

	"connectrpc.com/connect"
	"github.com/tigorlazuardi/bluemage/go/api"
	"github.com/tigorlazuardi/bluemage/go/gen/converter"
	device "github.com/tigorlazuardi/bluemage/go/gen/proto/device/v1"
	"github.com/tigorlazuardi/bluemage/go/gen/proto/device/v1/v1connect"
	"github.com/tigorlazuardi/bluemage/go/pkg/errs"
)

var _ v1connect.DeviceServiceHandler = (*DeviceHandler)(nil)

type DeviceHandler struct {
	API *api.API

	v1connect.UnimplementedDeviceServiceHandler
}

var deviceConvert converter.DeviceConverterImpl

// CreateDevice implements v1connect.DeviceServiceHandler.
func (d *DeviceHandler) CreateDevice(ctx context.Context, request *connect.Request[device.CreateDeviceRequest]) (*connect.Response[device.CreateDeviceResponse], error) {
	dev := deviceConvert.CreateDeviceRequestToModelsDevice(request.Msg)
	dev, err := d.API.DevicesCreate(ctx, dev)
	if err != nil {
		return nil, errs.IntoConnectError(err)
	}
	devResp := deviceConvert.ModelsDeviceToCreateDeviceResponse(dev)
	return connect.NewResponse(devResp), nil
}

// GetDevice implements v1connect.DeviceServiceHandler.
func (d *DeviceHandler) GetDevice(ctx context.Context, request *connect.Request[device.GetDeviceRequest]) (*connect.Response[device.GetDeviceResponse], error) {
	dev, err := d.API.GetDevice(ctx, request.Msg.Slug)
	if err != nil {
		return nil, errs.IntoConnectError(err)
	}

	devResp := deviceConvert.ModelsDeviceToGetDeviceResponse(dev)
	return connect.NewResponse(devResp), nil
}

// ListDevices implements v1connect.DeviceServiceHandler.
func (d *DeviceHandler) ListDevices(ctx context.Context, request *connect.Request[device.ListDevicesRequest]) (*connect.Response[device.ListDevicesResponse], error) {
	resp, err := d.API.DevicesList(ctx, request.Msg)
	if err != nil {
		return nil, errs.IntoConnectError(err)
	}
	return connect.NewResponse(resp), nil
}

// UpdateDevice updates a device.
// Only fields that are set in the request will be updated.
func (de *DeviceHandler) UpdateDevice(ctx context.Context, request *connect.Request[device.UpdateDeviceRequest]) (*connect.Response[device.UpdateDeviceResponse], error) {
	slug := request.Msg.Slug
	set := deviceConvert.DeviceSetterProtoToModelsDeviceSetter(request.Msg.Set)
	err := de.API.DevicesUpdate(ctx, slug, set)
	if err != nil {
		return nil, errs.IntoConnectError(err)
	}

	resp := &device.UpdateDeviceResponse{
		Slug: slug,
	}

	return connect.NewResponse(resp), nil
}

// DeviceExists checks if a device exists in the database.
func (de *DeviceHandler) DeviceExists(ctx context.Context, request *connect.Request[device.DeviceExistsRequest]) (*connect.Response[device.DeviceExistsResponse], error) {
	slug := request.Msg.Slug

	exists, err := de.API.DevicesExist(ctx, slug)
	if err != nil {
		return nil, errs.IntoConnectError(err)
	}

	resp := &device.DeviceExistsResponse{
		Exists: exists,
	}
	return connect.NewResponse(resp), nil
}

// CountDevices count the number of devices.
func (de *DeviceHandler) CountDevices(ctx context.Context, request *connect.Request[device.CountDevicesRequest]) (*connect.Response[device.CountDevicesResponse], error) {
	count, err := de.API.DevicesCount(ctx, request.Msg)
	if err != nil {
		return nil, errs.IntoConnectError(err)
	}

	resp := &device.CountDevicesResponse{
		Count: count,
	}
	return connect.NewResponse(resp), nil
}