package visitroute

import (
	"sync"

	"bitbucket.org/nemt/nemt-portal-api/application/applicationservice"
	"bitbucket.org/nemt/nemt-portal-api/infra/auth"
	"bitbucket.org/nemt/nemt-portal-api/infra/config"
	"bitbucket.org/nemt/nemt-portal-api/server/router/routeutils"
	"github.com/labstack/echo"
)

var (
	instance *controller
	once     sync.Once
)

type controller struct {
	svc *applicationservice.Service
	cfg *config.Config
}

func controllerInstance(svc *applicationservice.Service, cfg *config.Config) *controller {
	once.Do(func() {
		instance = &controller{
			svc: svc,
			cfg: cfg,
		}
	})
	return instance
}

func (c *controller) handleGetByID(ctx echo.Context) error {
	visit_uuid := ctx.Param("visit_uuid")
	if visit_uuid == "" {
		return routeutils.ResponseAPIValidationError(ctx, "visit_uuid param is mandatory")
	}

	user, err := auth.GetUserDetail(ctx, c.cfg)
	if err != nil {
		return routeutils.HandleAPIError(ctx, err)
	}

	resp, err := c.svc.Visits.GetByUUID(visit_uuid, user)
	if err != nil {
		return routeutils.HandleAPIError(ctx, err)
	}

	return routeutils.ResponseAPIOK(ctx, resp)
}

func (c *controller) handleGetAll(ctx echo.Context) error {
	user, err := auth.GetUserDetail(ctx, c.cfg)
	if err != nil {
		return routeutils.HandleAPIError(ctx, err)
	}

	resp, err := c.svc.Visits.GetAll(user)
	if err != nil {
		return routeutils.HandleAPIError(ctx, err)
	}

	return routeutils.ResponseAPIOK(ctx, resp)
}