86 lines
2.0 KiB
Go
86 lines
2.0 KiB
Go
// Package healthcheck provides application health status.
|
|
package healthcheck
|
|
|
|
import (
|
|
"context"
|
|
"log/slog"
|
|
"time"
|
|
|
|
"go.uber.org/fx"
|
|
|
|
"sneak.berlin/go/upaas/internal/config"
|
|
"sneak.berlin/go/upaas/internal/database"
|
|
"sneak.berlin/go/upaas/internal/globals"
|
|
"sneak.berlin/go/upaas/internal/logger"
|
|
)
|
|
|
|
// Params contains dependencies for Healthcheck.
|
|
type Params struct {
|
|
fx.In
|
|
|
|
Globals *globals.Globals
|
|
Config *config.Config
|
|
Logger *logger.Logger
|
|
Database *database.Database
|
|
}
|
|
|
|
// Healthcheck provides health status information.
|
|
type Healthcheck struct {
|
|
StartupTime time.Time
|
|
log *slog.Logger
|
|
params *Params
|
|
}
|
|
|
|
// Response is the health check response structure.
|
|
type Response struct {
|
|
Status string `json:"status"`
|
|
Now string `json:"now"`
|
|
UptimeSeconds int64 `json:"uptimeSeconds"`
|
|
UptimeHuman string `json:"uptimeHuman"`
|
|
Version string `json:"version"`
|
|
Appname string `json:"appname"`
|
|
Maintenance bool `json:"maintenanceMode"`
|
|
}
|
|
|
|
// New creates a new Healthcheck instance.
|
|
func New(lifecycle fx.Lifecycle, params Params) (*Healthcheck, error) {
|
|
healthcheck := &Healthcheck{
|
|
log: params.Logger.Get(),
|
|
params: ¶ms,
|
|
}
|
|
|
|
// For testing, if lifecycle is nil, initialize immediately
|
|
if lifecycle == nil {
|
|
healthcheck.StartupTime = time.Now()
|
|
|
|
return healthcheck, nil
|
|
}
|
|
|
|
lifecycle.Append(fx.Hook{
|
|
OnStart: func(_ context.Context) error {
|
|
healthcheck.StartupTime = time.Now()
|
|
|
|
return nil
|
|
},
|
|
})
|
|
|
|
return healthcheck, nil
|
|
}
|
|
|
|
// Check returns the current health status.
|
|
func (h *Healthcheck) Check() *Response {
|
|
return &Response{
|
|
Status: "ok",
|
|
Now: time.Now().UTC().Format(time.RFC3339Nano),
|
|
UptimeSeconds: int64(h.uptime().Seconds()),
|
|
UptimeHuman: h.uptime().String(),
|
|
Appname: h.params.Globals.Appname,
|
|
Version: h.params.Globals.Version,
|
|
Maintenance: h.params.Config.MaintenanceMode,
|
|
}
|
|
}
|
|
|
|
func (h *Healthcheck) uptime() time.Duration {
|
|
return time.Since(h.StartupTime)
|
|
}
|