package stacks

import (
	"fmt"
	httperror "github.com/portainer/libhttp/error"
	"github.com/portainer/libhttp/request"
	"github.com/portainer/libhttp/response"
	portainer "github.com/portainer/portainer/api"
	bolterrors "github.com/portainer/portainer/api/bolt/errors"
	"github.com/portainer/portainer/api/http/security"
	"github.com/portainer/portainer/api/internal/stackutils"
	"net/http"
	"time"
)

// PUT request on /api/stacks/:id/associate?endpointId=<endpointId>&swarmId=<swarmId>&orphanedRunning=<orphanedRunning>
func (handler *Handler) stackAssociate(w http.ResponseWriter, r *http.Request) *httperror.HandlerError {
	stackID, err := request.RetrieveNumericRouteVariableValue(r, "id")
	if err != nil {
		return &httperror.HandlerError{http.StatusBadRequest, "Invalid stack identifier route variable", err}
	}

	endpointID, err := request.RetrieveNumericQueryParameter(r, "endpointId", false)
	if err != nil {
		return &httperror.HandlerError{http.StatusBadRequest, "Invalid query parameter: endpointId", err}
	}

	swarmId, err := request.RetrieveQueryParameter(r, "swarmId", true)
	if err != nil {
		return &httperror.HandlerError{http.StatusBadRequest, "Invalid query parameter: swarmId", err}
	}

	orphanedRunning, err := request.RetrieveBooleanQueryParameter(r, "orphanedRunning", false)
	if err != nil {
		return &httperror.HandlerError{http.StatusBadRequest, "Invalid query parameter: orphanedRunning", err}
	}

	securityContext, err := security.RetrieveRestrictedRequestContext(r)
	if err != nil {
		return &httperror.HandlerError{http.StatusInternalServerError, "Unable to retrieve info from request context", err}
	}

	user, err := handler.DataStore.User().User(securityContext.UserID)
	if err != nil {
		return &httperror.HandlerError{http.StatusInternalServerError, "Unable to load user information from the database", err}
	}

	stack, err := handler.DataStore.Stack().Stack(portainer.StackID(stackID))
	if err == bolterrors.ErrObjectNotFound {
		return &httperror.HandlerError{http.StatusNotFound, "Unable to find a stack with the specified identifier inside the database", err}
	} else if err != nil {
		return &httperror.HandlerError{http.StatusInternalServerError, "Unable to find a stack with the specified identifier inside the database", err}
	}

	resourceControl, err := handler.DataStore.ResourceControl().ResourceControlByResourceIDAndType(stackutils.ResourceControlID(stack.EndpointID, stack.Name), portainer.StackResourceControl)
	if err != nil {
		return &httperror.HandlerError{http.StatusInternalServerError, "Unable to retrieve a resource control associated to the stack", err}
	}

	if resourceControl != nil {
		resourceControl.ResourceID = fmt.Sprintf("%d_%s", endpointID, stack.Name)

		err = handler.DataStore.ResourceControl().UpdateResourceControl(resourceControl.ID, resourceControl)
		if err != nil {
			return &httperror.HandlerError{http.StatusInternalServerError, "Unable to persist resource control changes inside the database", err}
		}
	}

	stack.EndpointID = portainer.EndpointID(endpointID)
	stack.SwarmID = swarmId

	if orphanedRunning {
		stack.Status = portainer.StackStatusActive
	} else {
		stack.Status = portainer.StackStatusInactive
	}

	stack.CreationDate = time.Now().Unix()
	stack.CreatedBy = user.Username
	stack.UpdateDate = 0
	stack.UpdatedBy = ""

	err = handler.DataStore.Stack().UpdateStack(stack.ID, stack)
	if err != nil {
		return &httperror.HandlerError{http.StatusInternalServerError, "Unable to persist the stack changes inside the database", err}
	}

	stack.ResourceControl = resourceControl

	return response.JSON(w, stack)
}