package service

import (
	"time"

	"browser.local/platform/domain"
	"browser.local/platform/validator"
)

func (svc *CoreService) projectLifecycleJobResult(job domain.Job, stamp time.Time) error {
	nextState, ok := lifecycleProjectedState(job.Capability, job.State)
	if !ok || job.ServerInstanceID == "" {
		return nil
	}
	instance, err := svc.store.ServerInstances().Get(job.ServerInstanceID)
	if err != nil {
		return err
	}
	instance.State = nextState
	instance.UpdatedAt = stamp
	if err := validator.ValidateServerInstance(instance); err != nil {
		return err
	}
	return svc.store.ServerInstances().Update(instance)
}

func lifecycleProjectedState(capability string, jobState domain.JobState) (domain.ServerInstanceState, bool) {
	if capability != domain.LifecycleCapabilityInstall && capability != domain.LifecycleCapabilityStart && capability != domain.LifecycleCapabilityStop {
		return "", false
	}
	if jobState == domain.JobStateFailed || jobState == domain.JobStateCancelled {
		return domain.ServerInstanceStateFailed, true
	}
	if jobState != domain.JobStateSucceeded {
		return "", false
	}
	switch capability {
	case domain.LifecycleCapabilityInstall:
		return domain.ServerInstanceStateReady, true
	case domain.LifecycleCapabilityStart:
		return domain.ServerInstanceStateRunning, true
	case domain.LifecycleCapabilityStop:
		return domain.ServerInstanceStateStopped, true
	default:
		return "", false
	}
}