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referral_code_controller.go
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/
referral_code_controller.go
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package controllers
import (
"encoding/json"
"github.com/gorilla/mux"
"github.com/larryprice/refermadness/models"
"github.com/larryprice/refermadness/utils"
"gopkg.in/mgo.v2"
"gopkg.in/mgo.v2/bson"
"gopkg.in/unrolled/render.v1"
"io/ioutil"
"net/http"
)
type ReferralCodeControllerImpl struct {
currentUser utils.CurrentUserAccessor
renderer *render.Render
database utils.DatabaseAccessor
}
func NewReferralCodeController(currentUser utils.CurrentUserAccessor, renderer *render.Render,
database utils.DatabaseAccessor) *ReferralCodeControllerImpl {
return &ReferralCodeControllerImpl{
currentUser: currentUser,
renderer: renderer,
database: database,
}
}
func (rc *ReferralCodeControllerImpl) Register(router *mux.Router) {
router.HandleFunc("/codes", rc.create).Methods("POST")
router.HandleFunc("/codes/random", rc.random).Methods("GET")
router.HandleFunc("/codes/{id}/report", rc.report).Methods("GET")
}
func (rc *ReferralCodeControllerImpl) create(w http.ResponseWriter, r *http.Request) {
body, _ := ioutil.ReadAll(r.Body)
var values map[string]string
json.Unmarshal(body, &values)
// verify serviceID
rawServiceID := values["serviceId"]
if !bson.IsObjectIdHex(rawServiceID) {
rc.renderer.JSON(w, http.StatusBadRequest, map[string]string{
"error": "Bad service ID",
})
return
}
db := rc.database.Get(r)
service := new(models.Service)
serviceID := bson.ObjectIdHex(rawServiceID)
if err := service.FindByID(serviceID, db); err != nil || !service.ID.Valid() {
rc.renderer.JSON(w, http.StatusBadRequest, map[string]string{
"error": "Bad service request",
})
return
}
userID := rc.currentUser.Get(r).ID
code := values["code"]
refCode := new(models.ReferralCode)
if refCode.FindByUserAndService(userID, serviceID, db); refCode.ID.Valid() {
if code == "" {
analytics := new(models.Analytics)
defer analytics.AddDeletedReferralCode(refCode, db)
defer refCode.Delete(db)
rc.renderer.JSON(w, http.StatusOK, nil)
return
}
if err := refCode.Edit(code, db); err != nil {
rc.renderer.JSON(w, http.StatusBadRequest, map[string]string{
"error": err.Error(),
})
return
}
} else {
if code == "" {
rc.renderer.JSON(w, http.StatusBadRequest, map[string]string{
"error": "Empty referral code not allowed",
})
return
}
refCode = models.NewReferralCode(code, rc.currentUser.Get(r).ID, service.ID)
if err := refCode.Save(db); err != nil {
rc.renderer.JSON(w, http.StatusBadRequest, map[string]string{
"error": err.Error(),
})
return
}
}
rc.renderer.JSON(w, http.StatusCreated, refCode)
}
func (rc *ReferralCodeControllerImpl) random(w http.ResponseWriter, r *http.Request) {
serviceID := r.FormValue("sid")
if !bson.IsObjectIdHex(serviceID) {
rc.renderer.JSON(w, http.StatusBadRequest, map[string]string{"error": "Invalid service ID."})
return
}
if refCode := rc.randomCode(bson.ObjectIdHex(serviceID), rc.database.Get(r), w); refCode.ID.Valid() {
rc.renderer.JSON(w, http.StatusOK, refCode)
}
}
func (rc *ReferralCodeControllerImpl) randomCode(serviceID bson.ObjectId, db *mgo.Database, w http.ResponseWriter) *models.ReferralCode {
refCode := new(models.ReferralCode)
service := new(models.Service)
if err := service.FindByID(serviceID, db); err != nil {
rc.renderer.JSON(w, http.StatusInternalServerError, map[string]string{"error": err.Error()})
return refCode
}
if !service.ID.Valid() {
rc.renderer.JSON(w, http.StatusBadRequest, map[string]string{"error": "No such service."})
return refCode
}
if err := refCode.FindRandom(service.ID, db); err != nil {
rc.renderer.JSON(w, http.StatusInternalServerError, map[string]string{"error": err.Error()})
return refCode
}
defer refCode.WasViewed(db)
return refCode
}
func (rc *ReferralCodeControllerImpl) report(w http.ResponseWriter, r *http.Request) {
u := rc.currentUser.Get(r)
if u == nil {
rc.renderer.JSON(w, http.StatusUnauthorized, map[string]string{"error": "Must be logged in to report invalid codes"})
return
}
if !bson.IsObjectIdHex(mux.Vars(r)["id"]) {
rc.renderer.JSON(w, http.StatusBadRequest, map[string]string{"error": "Invalid BSON ID"})
return
}
code := new(models.ReferralCode)
db := rc.database.Get(r)
if err := code.FindByID(bson.ObjectIdHex(mux.Vars(r)["id"]), db); err != nil {
rc.renderer.JSON(w, http.StatusInternalServerError, map[string]string{"error": err.Error()})
return
}
if !code.ID.Valid() {
rc.renderer.JSON(w, http.StatusBadRequest, map[string]string{"error": "No such referral code"})
return
}
if u.ID == code.UserID {
rc.renderer.JSON(w, http.StatusBadRequest, map[string]string{"error": "Don't report your own code, silly"})
return
}
defer code.WasReported(u.ID, db)
flag := models.NewReferralCodeFlag(code.ID, u.ID)
defer flag.Save(db)
if newCode := rc.randomCode(code.ServiceID, db, w); newCode.ID.Valid() {
rc.renderer.JSON(w, http.StatusOK, newCode)
}
}