80 lines
2.0 KiB
Go
80 lines
2.0 KiB
Go
package handlers
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import (
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"context"
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"log"
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"net/http"
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"time"
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"github.com/kjannette/koin-ping/backend-go/internal/models"
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"github.com/kjannette/koin-ping/backend-go/internal/protocols/ethereum"
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)
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func HealthCheck(w http.ResponseWriter, r *http.Request) {
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writeJSON(w, http.StatusOK, map[string]interface{}{
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"status": "ok",
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"timestamp": time.Now().UTC().Format(time.RFC3339),
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"service": "koin-ping-backend",
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})
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}
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type StatusHandler struct {
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eth ethereum.EthereumObserver
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checkpoints *models.CheckpointModel
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}
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func NewStatusHandler(eth ethereum.EthereumObserver, checkpoints *models.CheckpointModel) *StatusHandler {
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return &StatusHandler{eth: eth, checkpoints: checkpoints}
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}
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func (h *StatusHandler) SystemStatus(w http.ResponseWriter, r *http.Request) {
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ctx, cancel := context.WithTimeout(r.Context(), 10*time.Second)
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defer cancel()
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status := "healthy"
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if h.eth == nil {
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writeJSON(w, http.StatusOK, map[string]interface{}{
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"latestBlock": 0,
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"lag": 0,
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"trackedAddresses": 0,
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"status": "no_rpc",
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"timestamp": time.Now().UTC().Format(time.RFC3339),
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})
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return
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}
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latestBlock, err := h.eth.GetLatestBlockNumber(ctx)
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if err != nil {
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log.Printf("Failed to get latest block: %v", err)
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status = "degraded"
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latestBlock = 0
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}
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lag := 0
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checkpoints, err := h.checkpoints.ListAll(ctx)
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if err != nil {
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log.Printf("Failed to list checkpoints: %v", err)
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} else if len(checkpoints) > 0 && latestBlock > 0 {
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minChecked := checkpoints[0].LastCheckedBlock
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for _, cp := range checkpoints[1:] {
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if cp.LastCheckedBlock < minChecked {
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minChecked = cp.LastCheckedBlock
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}
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}
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lag = latestBlock - minChecked
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}
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if lag > 50 {
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status = "syncing"
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}
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writeJSON(w, http.StatusOK, map[string]interface{}{
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"latestBlock": latestBlock,
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"lag": lag,
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"trackedAddresses": len(checkpoints),
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"status": status,
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"timestamp": time.Now().UTC().Format(time.RFC3339),
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})
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}
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