147 lines
3.0 KiB
Go
147 lines
3.0 KiB
Go
package api
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import (
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"encoding/json"
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"log"
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"net"
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"net/http"
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"time"
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"github.com/leandrofars/oktopus/internal/db"
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"github.com/leandrofars/oktopus/internal/utils"
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)
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type StatusCount struct {
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Online int
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Offline int
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}
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type GeneralInfo struct {
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MqttRtt time.Duration
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ProductClassCount []db.ProductClassCount
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StatusCount StatusCount
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VendorsCount []db.VendorsCount
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}
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func (a *Api) generalInfo(w http.ResponseWriter, r *http.Request) {
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var result GeneralInfo
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productclasscount, err := a.Db.RetrieveProductsClassInfo()
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if err != nil {
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log.Println(err)
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w.WriteHeader(http.StatusInternalServerError)
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return
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}
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vendorcount, err := a.Db.RetrieveVendorsInfo()
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if err != nil {
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log.Println(err)
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w.WriteHeader(http.StatusInternalServerError)
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return
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}
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statuscount, err := a.Db.RetrieveStatusInfo()
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if err != nil {
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log.Println(err)
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w.WriteHeader(http.StatusInternalServerError)
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return
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}
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for _, v := range statuscount {
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switch v.Status {
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case utils.Online:
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result.StatusCount.Online = v.Count
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case utils.Offline:
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result.StatusCount.Offline = v.Count
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}
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}
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result.VendorsCount = vendorcount
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result.ProductClassCount = productclasscount
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/* ------------ TODO: [mqtt rtt] create common function for this ------------ */
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//TODO: address with value from env or something like that
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conn, err := net.Dial("tcp", "127.0.0.1:1883")
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if err != nil {
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json.NewEncoder(w).Encode("Error to connect to broker")
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w.WriteHeader(http.StatusInternalServerError)
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return
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}
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defer conn.Close()
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info, err := tcpInfo(conn.(*net.TCPConn))
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if err != nil {
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json.NewEncoder(w).Encode("Error to get TCP socket info")
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w.WriteHeader(http.StatusInternalServerError)
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return
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}
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rtt := time.Duration(info.Rtt) * time.Microsecond
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/* -------------------------------------------------------------------------- */
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result.MqttRtt = rtt / 1000
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err = json.NewEncoder(w).Encode(result)
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if err != nil {
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log.Println(err)
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}
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return
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}
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func (a *Api) vendorsInfo(w http.ResponseWriter, r *http.Request) {
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vendors, err := a.Db.RetrieveVendorsInfo()
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if err != nil {
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log.Println(err)
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w.WriteHeader(http.StatusInternalServerError)
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return
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}
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err = json.NewEncoder(w).Encode(vendors)
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if err != nil {
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log.Println(err)
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}
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return
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}
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func (a *Api) productClassInfo(w http.ResponseWriter, r *http.Request) {
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vendors, err := a.Db.RetrieveProductsClassInfo()
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if err != nil {
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log.Println(err)
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w.WriteHeader(http.StatusInternalServerError)
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return
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}
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err = json.NewEncoder(w).Encode(vendors)
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if err != nil {
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log.Println(err)
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}
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return
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}
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func (a *Api) statusInfo(w http.ResponseWriter, r *http.Request) {
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vendors, err := a.Db.RetrieveStatusInfo()
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if err != nil {
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log.Println(err)
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w.WriteHeader(http.StatusInternalServerError)
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return
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}
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var status StatusCount
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for _, v := range vendors {
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switch v.Status {
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case utils.Online:
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status.Online = v.Count
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case utils.Offline:
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status.Offline = v.Count
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}
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}
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err = json.NewEncoder(w).Encode(status)
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if err != nil {
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log.Println(err)
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}
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return
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}
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