From 7eb9e93f226b832e6e38c2f7658b5988733900ff Mon Sep 17 00:00:00 2001
From: zrshishir <zrshishir@gmail.com>
Date: Mon, 20 Dec 2021 17:55:16 +0600
Subject: [PATCH] carrier request api publisher done

---
 internal/app/model/entities.go | 15 ++++++++++++
 internal/app/server/handler.go | 42 +++++++++++++++++++++++++++++++++-
 internal/app/server/server.go  |  2 ++
 3 files changed, 58 insertions(+), 1 deletion(-)

diff --git a/internal/app/model/entities.go b/internal/app/model/entities.go
index 8aa341a..19d9743 100644
--- a/internal/app/model/entities.go
+++ b/internal/app/model/entities.go
@@ -21,6 +21,13 @@ type Parcel struct {
 	UpdatedAt          time.Time `json:"updated_at" db:"updated_at"`
 }
 
+type CarrierRequest struct {
+	ID        int `json:"id"`
+	ParcelID  int `json:"parcel_id" db:"parcel_id"`
+	CarrierID int `json:"carrier_id" db:"carrier_id"`
+	Status    int `json:"status" db:"status"`
+}
+
 func (p *Parcel) ValidateParcelInput() error {
 	if p.SourceAddress == "" {
 		return fmt.Errorf("source Address is required :%w", ErrEmpty)
@@ -40,3 +47,11 @@ func (p *Parcel) ValidateParcelInput() error {
 
 	return nil
 }
+
+// Validates carrier request input credentials
+func (cr *CarrierRequest) ValidateCarrierId() error {
+	if cr.CarrierID == 0 {
+		return fmt.Errorf("Carrier ID is required :%w", ErrEmpty)
+	}
+	return nil
+}
diff --git a/internal/app/server/handler.go b/internal/app/server/handler.go
index 90d14f3..fa57dc8 100644
--- a/internal/app/server/handler.go
+++ b/internal/app/server/handler.go
@@ -3,8 +3,10 @@ package server
 import (
 	"CreateParcelApi/internal/app/model"
 	"encoding/json"
+	"github.com/gorilla/mux"
 	"github.com/rs/zerolog/log"
 	"net/http"
+	"strconv"
 )
 
 func (s *server) createParcel(w http.ResponseWriter, r *http.Request) {
@@ -34,5 +36,43 @@ func (s *server) createParcel(w http.ResponseWriter, r *http.Request) {
 		return
 	}
 
-	SuccessResponse(w, http.StatusOK, "your parcel is being created withing some moments")
+	SuccessResponse(w, http.StatusOK, "your parcel request is on process")
 }
+
+func (s *server) addCarrierRequest(w http.ResponseWriter, r *http.Request) {
+	var data model.CarrierRequest
+	vars := mux.Vars(r)
+
+	if err := json.NewDecoder(r.Body).Decode(&data); err != nil {
+		ErrUnprocessableEntityResponse(w, "Decode Error", err)
+		return
+	}
+	parcelID, err := strconv.Atoi(vars["id"])
+	if err != nil {
+		ErrInvalidEntityResponse(w, "Invalid Parcel ID", err)
+		return
+	}
+
+	data.ParcelID = parcelID
+	if err := data.ValidateCarrierId(); err != nil {
+		ErrInvalidEntityResponse(w, "Invalid Input", err)
+		return
+	}
+
+	message, err := json.Marshal(data)
+	if err != nil {
+		log.Error().Err(err).Msg("json marshal failed")
+		ErrUnprocessableEntityResponse(w, "bad request", err)
+		return
+	}
+
+	err = s.publisherService.Push(message)
+	if err != nil {
+		log.Error().Err(err).Msg("failed to publish message")
+		ErrInternalServerResponse(w, "Failed to publish message", err)
+		return
+	}
+
+	SuccessResponse(w, http.StatusOK, "your request is on process")
+}
+
diff --git a/internal/app/server/server.go b/internal/app/server/server.go
index 5844fe1..c64e256 100644
--- a/internal/app/server/server.go
+++ b/internal/app/server/server.go
@@ -31,6 +31,8 @@ func (s *server) route() *mux.Router {
 	//apiRoute := r.PathPrefix("/api/v1").Subrouter()
 	r.Methods(http.MethodGet).Path("/ping").HandlerFunc(s.pingHandler)
 	r.Methods(http.MethodPost).Path("/api/v1/parcel").HandlerFunc(s.createParcel)
+	r.Methods(http.MethodPost).Path("/api/v1/parcel/{id}/request").HandlerFunc(s.addCarrierRequest)
+
 	return r
 }