package healthimp

import (
	"net/http"
	"sync"

	"git.sendico.io/tech/sxchnge/product/app/health/status"
	"git.sendico.io/tech/sxchnge/shared/http/response"
	"git.sendico.io/tech/sxchnge/shared/logging"
)

type Status struct {
	logger mlogger.Logger
	mu     sync.RWMutex
	status health.ServiceStatus
}

func (hs *Status) healthHandler() http.HandlerFunc {
	hs.mu.RLock()
	status := hs.status
	hs.mu.RUnlock()
	return response.Ok(hs.logger, struct {
		Status health.ServiceStatus `json:"status"`
	}{
		status,
	})
}

func (hr *Status) Finish() {
	hr.logger.Info("Finished")
}

func (hs *Status) transition(status health.ServiceStatus) (health.ServiceStatus, bool) {
	hs.mu.Lock()
	defer hs.mu.Unlock()
	previous := hs.status
	if previous == status {
		return previous, false
	}
	hs.status = status
	return previous, true
}

func StatusHandler(logger mlogger.Logger) *Status {
	hs := Status{
		status: health.SSCreated,
		logger: logger.Named("status"),
	}
	return &hs
}