Reorganized API + added db migrations

Read the README file for more informations

backend/api/users/auth.go

@@ -0,0 +1,96 @@
+package users
+
+import (
+	"context"
+	"encoding/json"
+	"fmt"
+	"io"
+	"net/http"
+	"time"
+
+	core "fr.latosa-escrima/api/core"
+	"github.com/golang-jwt/jwt/v5"
+)
+
+var MySigningKey = []byte("COUCOU")
+
+type LoginArgs struct {
+	Email    string `json:"email"`
+	Password string `json:"password"`
+}
+
+type Claims struct {
+	UserID string `json:"user_id"`
+	jwt.RegisteredClaims
+}
+
+func HandleLogin(w http.ResponseWriter, r *http.Request) {
+	if r.Body == nil {
+		core.JSONError{
+			Status:  core.Error,
+			Message: "No body has been provided.",
+		}.Respond(w, http.StatusNoContent)
+		return
+	}
+
+	body, err := io.ReadAll(r.Body)
+	fmt.Println(body)
+	if err != nil {
+		core.JSONError{
+			Status:  core.Error,
+			Message: err.Error(),
+		}.Respond(w, http.StatusNoContent)
+		return
+	}
+	var login LoginArgs
+	err = json.Unmarshal(body, &login)
+	if err != nil {
+		core.JSONError{
+			Status:  core.Error,
+			Message: err.Error(),
+		}.Respond(w, http.StatusNoContent)
+		return
+	}
+
+	user, err := core.Verify(context.Background(), login.Email, login.Password)
+	if user == nil {
+		core.JSONError{
+			Status:  core.Error,
+			Message: "User not found.",
+		}.Respond(w, http.StatusNotFound)
+		return
+	}
+	if err != nil {
+		core.JSONError{
+			Status:  core.Error,
+			Message: err.Error(),
+		}.Respond(w, http.StatusNoContent)
+		return
+	}
+
+	claims := Claims{
+		UserID: user.UserID.String(),
+		RegisteredClaims: jwt.RegisteredClaims{
+			Issuer:    "latosa-escrima.fr",
+			Subject:   "authentification",
+			ExpiresAt: jwt.NewNumericDate(time.Now().Add(time.Hour * 24)),
+			IssuedAt:  jwt.NewNumericDate(time.Now()),
+		},
+	}
+
+	token := jwt.NewWithClaims(jwt.SigningMethodHS256, claims)
+	signed, err := token.SignedString(MySigningKey)
+	if err != nil {
+		core.JSONError{
+			Status:  core.Error,
+			Message: err.Error(),
+		}.Respond(w, http.StatusNoContent)
+		return
+	}
+
+	core.JSONSuccess{
+		Status:  core.Success,
+		Message: "JWT Created",
+		Data:    signed,
+	}.Respond(w, http.StatusCreated)
+}