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|
package api
import (
"context"
"encoding/json"
"fmt"
"net/http"
"strconv"
"time"
"yaum/internal/monitor"
"yaum/internal/model"
"yaum/internal/store"
)
type ServiceResponse struct {
model.Service
LastHeartbeat *model.Heartbeat `json:"last_heartbeat,omitempty"`
}
type Handler struct {
store store.Store
timeout int
}
func NewHandler(s store.Store, timeoutSec int) *Handler {
return &Handler{store: s, timeout: timeoutSec}
}
func (h *Handler) ListServices(w http.ResponseWriter, r *http.Request) {
services, err := h.store.ListServices()
if err != nil {
writeJSON(w, http.StatusInternalServerError, map[string]string{"error": err.Error()})
return
}
resp := make([]ServiceResponse, len(services))
for i, svc := range services {
resp[i] = ServiceResponse{
Service: svc.Service,
LastHeartbeat: svc.LastHeartbeat,
}
}
writeJSON(w, http.StatusOK, resp)
}
func (h *Handler) CreateService(w http.ResponseWriter, r *http.Request) {
var svc model.Service
if err := json.NewDecoder(r.Body).Decode(&svc); err != nil {
writeJSON(w, http.StatusBadRequest, map[string]string{"error": "json invalido: " + err.Error()})
return
}
if svc.Name == "" || svc.URL == "" {
writeJSON(w, http.StatusBadRequest, map[string]string{"error": "name e url sao obrigatorios"})
return
}
created, err := h.store.AddService(svc)
if err != nil {
writeJSON(w, http.StatusInternalServerError, map[string]string{"error": err.Error()})
return
}
writeJSON(w, http.StatusCreated, created)
}
func (h *Handler) ToggleService(w http.ResponseWriter, r *http.Request) {
id, err := strconv.Atoi(r.PathValue("id"))
if err != nil {
writeJSON(w, http.StatusBadRequest, map[string]string{"error": "id invalido"})
return
}
svc, err := h.store.ToggleService(id)
if err != nil {
writeJSON(w, http.StatusNotFound, map[string]string{"error": err.Error()})
return
}
writeJSON(w, http.StatusOK, svc)
}
func (h *Handler) TestService(w http.ResponseWriter, r *http.Request) {
id, err := strconv.Atoi(r.PathValue("id"))
if err != nil {
writeJSON(w, http.StatusBadRequest, map[string]string{"error": "id invalido"})
return
}
svc, err := h.store.GetService(id)
if err != nil || svc == nil {
writeJSON(w, http.StatusNotFound, map[string]string{"error": "servico nao encontrado"})
return
}
ctx, cancel := context.WithTimeout(r.Context(), time.Duration(h.timeout)*time.Second)
defer cancel()
hb := monitor.CheckHTTP(ctx, svc.URL, svc.KeywordToFind)
hb.ServiceID = svc.ID
if saverr := h.store.AddHeartbeat(hb); saverr != nil {
writeJSON(w, http.StatusInternalServerError, map[string]string{"error": saverr.Error()})
return
}
writeJSON(w, http.StatusOK, hb)
}
func (h *Handler) UpdateService(w http.ResponseWriter, r *http.Request) {
id, err := strconv.Atoi(r.PathValue("id"))
if err != nil {
writeJSON(w, http.StatusBadRequest, map[string]string{"error": "id invalido"})
return
}
var svc model.Service
if err := json.NewDecoder(r.Body).Decode(&svc); err != nil {
writeJSON(w, http.StatusBadRequest, map[string]string{"error": "json invalido: " + err.Error()})
return
}
updated, err := h.store.UpdateService(id, svc)
if err != nil {
writeJSON(w, http.StatusInternalServerError, map[string]string{"error": err.Error()})
return
}
writeJSON(w, http.StatusOK, updated)
}
func (h *Handler) DeleteService(w http.ResponseWriter, r *http.Request) {
id, err := strconv.Atoi(r.PathValue("id"))
if err != nil {
writeJSON(w, http.StatusBadRequest, map[string]string{"error": "id invalido"})
return
}
if err := h.store.DeleteService(id); err != nil {
writeJSON(w, http.StatusNotFound, map[string]string{"error": err.Error()})
return
}
w.WriteHeader(http.StatusNoContent)
}
func (h *Handler) GetHistory(w http.ResponseWriter, r *http.Request) {
id, err := strconv.Atoi(r.PathValue("id"))
if err != nil {
writeJSON(w, http.StatusBadRequest, map[string]string{"error": "id invalido"})
return
}
page, _ := strconv.Atoi(r.URL.Query().Get("page"))
if page < 1 {
page = 1
}
perPage, _ := strconv.Atoi(r.URL.Query().Get("per_page"))
if perPage < 1 || perPage > 100 {
perPage = 50
}
offset := (page - 1) * perPage
history, err := h.store.GetHistory(id, perPage, offset)
if err != nil {
writeJSON(w, http.StatusInternalServerError, map[string]string{"error": err.Error()})
return
}
total, err := h.store.CountHeartbeats(id)
if err != nil {
total = len(history)
}
totalPages := (total + perPage - 1) / perPage
if totalPages < 1 {
totalPages = 1
}
writeJSON(w, http.StatusOK, map[string]any{
"data": history,
"page": page,
"per_page": perPage,
"total": total,
"total_pages": totalPages,
})
}
func (h *Handler) GetActiveMaintenance(w http.ResponseWriter, r *http.Request) {
m, err := h.store.GetActiveMaintenance(time.Now())
if err != nil {
writeJSON(w, http.StatusInternalServerError, map[string]string{"error": err.Error()})
return
}
if m == nil {
writeJSON(w, http.StatusOK, map[string]any{"maintenance": nil})
return
}
writeJSON(w, http.StatusOK, map[string]any{"maintenance": m})
}
func (h *Handler) ListMaintenances(w http.ResponseWriter, r *http.Request) {
maintenances, err := h.store.ListMaintenances()
if err != nil {
writeJSON(w, http.StatusInternalServerError, map[string]string{"error": err.Error()})
return
}
writeJSON(w, http.StatusOK, maintenances)
}
func (h *Handler) CreateMaintenance(w http.ResponseWriter, r *http.Request) {
var m model.Maintenance
if err := json.NewDecoder(r.Body).Decode(&m); err != nil {
writeJSON(w, http.StatusBadRequest, map[string]string{"error": "json invalido: " + err.Error()})
return
}
if m.Title == "" {
writeJSON(w, http.StatusBadRequest, map[string]string{"error": "titulo obrigatorio"})
return
}
created, err := h.store.AddMaintenance(m)
if err != nil {
writeJSON(w, http.StatusInternalServerError, map[string]string{"error": err.Error()})
return
}
writeJSON(w, http.StatusCreated, created)
}
func (h *Handler) UpdateMaintenance(w http.ResponseWriter, r *http.Request) {
id, err := strconv.Atoi(r.PathValue("id"))
if err != nil {
writeJSON(w, http.StatusBadRequest, map[string]string{"error": "id invalido"})
return
}
var m model.Maintenance
if err := json.NewDecoder(r.Body).Decode(&m); err != nil {
writeJSON(w, http.StatusBadRequest, map[string]string{"error": "json invalido: " + err.Error()})
return
}
updated, err := h.store.UpdateMaintenance(id, m)
if err != nil {
writeJSON(w, http.StatusInternalServerError, map[string]string{"error": err.Error()})
return
}
writeJSON(w, http.StatusOK, updated)
}
func (h *Handler) DeleteMaintenance(w http.ResponseWriter, r *http.Request) {
id, err := strconv.Atoi(r.PathValue("id"))
if err != nil {
writeJSON(w, http.StatusBadRequest, map[string]string{"error": "id invalido"})
return
}
if err := h.store.DeleteMaintenance(id); err != nil {
writeJSON(w, http.StatusNotFound, map[string]string{"error": err.Error()})
return
}
w.WriteHeader(http.StatusNoContent)
}
func (h *Handler) BadgeSVG(w http.ResponseWriter, r *http.Request) {
id, err := strconv.Atoi(r.PathValue("id"))
if err != nil {
w.Header().Set("Content-Type", "image/svg+xml")
w.WriteHeader(http.StatusBadRequest)
w.Write([]byte(badgeSVG("ERRO", "#888")))
return
}
svc, err := h.store.GetService(id)
if err != nil || svc == nil {
w.Header().Set("Content-Type", "image/svg+xml")
w.WriteHeader(http.StatusNotFound)
w.Write([]byte(badgeSVG("N/A", "#888")))
return
}
stats, _ := h.store.GetServiceStats(id)
lastHb, _ := h.store.GetLastHeartbeat(id)
var label, color string
if lastHb == nil {
label = "AGUARDANDO"
color = "#888"
} else if lastHb.IsUp {
if stats != nil && stats.Uptime30d > 0 {
label = "UP " + fmt.Sprintf("%.1f", stats.Uptime30d) + "%"
} else {
label = "UP"
}
color = "#22f06a"
} else {
label = "DOWN"
color = "#ff4060"
}
w.Header().Set("Content-Type", "image/svg+xml")
w.Header().Set("Cache-Control", "no-cache, no-store, must-revalidate")
w.Write([]byte(badgeSVG(label, color)))
}
func badgeSVG(label string, color string) string {
textWidth := len(label) * 8
if textWidth < 40 {
textWidth = 40
}
totalWidth := 20 + textWidth + 8
return fmt.Sprintf(
`<svg xmlns="http://www.w3.org/2000/svg" width="%d" height="20">
<rect width="%d" height="20" rx="3" fill="#333"/>
<rect x="%d" width="%d" height="20" rx="3" fill="%s"/>
<text x="%d" y="14" font-family="monospace, sans-serif" font-size="11" font-weight="bold" fill="#fff" text-anchor="middle">%s</text>
</svg>`,
totalWidth, totalWidth, totalWidth-textWidth-8, textWidth+8, color,
10+(textWidth/2), label,
)
}
func (h *Handler) GetStats(w http.ResponseWriter, r *http.Request) {
id, err := strconv.Atoi(r.PathValue("id"))
if err != nil {
writeJSON(w, http.StatusBadRequest, map[string]string{"error": "id invalido"})
return
}
stats, err := h.store.GetServiceStats(id)
if err != nil {
writeJSON(w, http.StatusInternalServerError, map[string]string{"error": err.Error()})
return
}
writeJSON(w, http.StatusOK, stats)
}
func writeJSON(w http.ResponseWriter, status int, data any) {
w.Header().Set("Content-Type", "application/json")
w.WriteHeader(status)
json.NewEncoder(w).Encode(data)
}
|
