feat(auth): 添加用户登录功能

internal/api/auth_api/login.go

@@ -0,0 +1,74 @@
+package auth_api
+
+import (
+	"EnGin/internal/global"
+	"EnGin/internal/middleware"
+	"EnGin/internal/service/auth_ser"
+	"EnGin/internal/utils/jwts"
+	"EnGin/internal/utils/res"
+	"errors"
+
+	"github.com/gin-gonic/gin"
+	"go.uber.org/zap"
+)
+
+type LoginRequest struct {
+	Username string `json:"username" binding:"required" label:"用户名"`
+	Password string `json:"password" binding:"required" label:"密码"`
+}
+
+type LoginResponse struct {
+	AccessToken  string `json:"access_token"`
+	RefreshToken string `json:"refresh_token"`
+}
+
+func (AuthApi) LoginView(c *gin.Context) {
+	cr := middleware.GetBind[LoginRequest](c)
+
+	u, err := auth_ser.Login(c.Request.Context(), cr.Username, cr.Password)
+	if err != nil {
+		if errors.Is(err, auth_ser.ErrUserNotFound) {
+			global.Log.Warn("用户不存在", zap.String("username", cr.Username), zap.Error(err))
+			res.BadRequest("用户名或密码错误", c)
+			return
+		}
+
+		if errors.Is(err, auth_ser.ErrAccount) {
+			res.FailWithMsg("用户名或密码错误", c)
+			return
+		}
+
+		global.Log.Error("登陆系统异常", zap.Error(err))
+		res.InternalError("登陆失败,请稍后重试", c)
+		return
+	}
+
+	// 提取预加载的角色 ID 列表
+	var roleIds []uint
+	for _, role := range u.Edges.Roles {
+		roleIds = append(roleIds, uint(role.ID))
+	}
+
+	claims := jwts.Claims{
+		UserID: uint(u.ID),
+		Roles:  roleIds, // 将关联查询出的角色 ID 塞进 token
+		Email:  u.Email,
+	}
+
+	accessToken, err := jwts.GenAccessToken(claims)
+	if err != nil {
+		res.InternalError("生成 accessToken 失败", c)
+		return
+	}
+
+	refreshToken, err := jwts.GenRefreshToken(uint(u.ID))
+	if err != nil {
+		res.InternalError("生成 refreshToken 失败", c)
+		return
+	}
+
+	res.OkWithData(LoginResponse{
+		AccessToken:  accessToken,
+		RefreshToken: refreshToken,
+	}, c)
+}