Feat : API to handle Candidate

Closes #30 (closed)

internal/models/candidate.go

+package models
+
+import (
+	"encoding/json"
+	"net/http"
+	"strconv"
+	"strings"
+
+	"forge.grandlyon.com/apoyen/elections/internal/auth"
+)
+
+func (d *DataHandler) handleCandidate(w http.ResponseWriter, r *http.Request) {
+	id, _ := strconv.Atoi(strings.TrimPrefix(r.URL.Path, "/api/Candidate/"))
+	switch method := r.Method; method {
+	case "GET":
+		switch auth.GetLoggedUserTechnical(w, r).Role {
+		case "ADMIN", "CAPTURER", "VISUALIZER":
+			d.getCandidate(w, r, id)
+		default:
+			http.Error(w, ErrorRoleOfLoggedUser, http.StatusInternalServerError)
+		}
+	case "POST":
+		switch auth.GetLoggedUserTechnical(w, r).Role {
+		case "ADMIN":
+			d.postCandidate(w, r)
+		case "CAPTURER", "VISUALIZER":
+			http.Error(w, ErrorNotAuthorizeMethodOnRessource, http.StatusMethodNotAllowed)
+		default:
+			http.Error(w, ErrorRoleOfLoggedUser, http.StatusInternalServerError)
+		}
+
+	case "PUT":
+		switch auth.GetLoggedUserTechnical(w, r).Role {
+		case "ADMIN":
+			d.putCandidate(w, r, id)
+		case "CAPTURER", "VISUALIZER":
+			http.Error(w, ErrorNotAuthorizeMethodOnRessource, http.StatusMethodNotAllowed)
+		default:
+			http.Error(w, ErrorRoleOfLoggedUser, http.StatusInternalServerError)
+		}
+	case "DELETE":
+		switch auth.GetLoggedUserTechnical(w, r).Role {
+		case "ADMIN":
+			d.deleteCandidate(w, r, id)
+		case "CAPTURER", "VISUALIZER":
+			http.Error(w, ErrorNotAuthorizeMethodOnRessource, http.StatusMethodNotAllowed)
+		default:
+			http.Error(w, ErrorRoleOfLoggedUser, http.StatusInternalServerError)
+		}
+	default:
+		http.Error(w, "method not allowed", 400)
+	}
+}
+
+func (d *DataHandler) getCandidate(w http.ResponseWriter, r *http.Request, id int) {
+	if id != 0 {
+		var o Candidate
+		if err := d.db.First(&o, id).Error; err != nil {
+			http.Error(w, ErrorIDIsMissing, http.StatusNotFound)
+			return
+		}
+		json.NewEncoder(w).Encode(o)
+	} else {
+		var o []Candidate
+		d.db.Find(&o)
+		json.NewEncoder(w).Encode(o)
+	}
+}
+
+func (d *DataHandler) postCandidate(w http.ResponseWriter, r *http.Request) {
+	var o Candidate
+	err := json.NewDecoder(r.Body).Decode(&o)
+	if err != nil {
+		http.Error(w, err.Error(), http.StatusInternalServerError)
+		return
+	}
+	// Check that CandidateList exist
+	var candidateList CandidateList
+	if err := d.db.First(&candidateList, o.CandidateListID).Error; err != nil {
+		http.Error(w, ErrorParentNotFound, http.StatusInternalServerError)
+		return
+	}
+
+	d.db.Create(&o)
+	d.db.Last(&o)
+	json.NewEncoder(w).Encode(o)
+}
+
+func (d *DataHandler) putCandidate(w http.ResponseWriter, r *http.Request, id int) {
+	var o Candidate
+	if err := d.db.First(&o, id).Error; err != nil {
+		http.Error(w, ErrorIDIsMissing, http.StatusNotFound)
+		return
+	}
+	var candidate Candidate
+	err := json.NewDecoder(r.Body).Decode(&candidate)
+	if err != nil {
+		http.Error(w, err.Error(), http.StatusInternalServerError)
+		return
+	}
+	o.FullName = candidate.FullName
+	o.Rank = candidate.Rank
+	o.CommunityCounseller = candidate.CommunityCounseller
+	o.Birthdate = candidate.Birthdate
+	o.PotentialIncompatibility = candidate.PotentialIncompatibility
+	o.Refused = candidate.Refused
+	o.Removed = candidate.Removed
+	d.db.Save(&o)
+	json.NewEncoder(w).Encode(o)
+
+}
+
+func (d *DataHandler) deleteCandidate(w http.ResponseWriter, r *http.Request, id int) {
+	if id != 0 {
+		var o Candidate
+		if err := d.db.First(&o, id).Error; err != nil {
+			http.Error(w, ErrorIDIsMissing, http.StatusNotFound)
+			return
+		}
+
+		d.db.Delete(&o)
+	} else {
+		http.Error(w, ErrorIDIsMissing, http.StatusNotFound)
+	}
+}