package auth

import (
	"task-track-backend/model"

	"github.com/gin-gonic/gin"
	"golang.org/x/crypto/bcrypt"
)

type RegisterRequest struct {
	Username string `json:"username" binding:"required"`
	Password string `json:"password" binding:"required"`
	Email    string `json:"email" binding:"required"`
}

func (h *AuthHandler) Register(c *gin.Context) {
	var req RegisterRequest
	if err := c.ShouldBindJSON(&req); err != nil {
		c.JSON(400, gin.H{"code": 400, "message": "Invalid request data", "error": err.Error()})
		return
	}

	// 检查用户名是否已存在
	var existingUser model.User
	if err := h.db.Where("username = ?", req.Username).First(&existingUser).Error; err == nil {
		c.JSON(409, gin.H{"code": 409, "message": "Username already exists"})
		return
	}

	// 加密密码
	hashedPassword, err := bcrypt.GenerateFromPassword([]byte(req.Password), bcrypt.DefaultCost)
	if err != nil {
		c.JSON(500, gin.H{"code": 500, "message": "Failed to hash password", "error": err.Error()})
		return
	}

	user := model.User{
		Username: req.Username,
		Password: string(hashedPassword),
		Email:    req.Email,
	}

	// 创建用户
	if err := h.db.Create(&user).Error; err != nil {
		c.JSON(500, gin.H{"code": 500, "message": "Failed to create user", "error": err.Error()})
		return
	}

	c.JSON(201, gin.H{"code": 201, "message": "User created successfully", "data": user})
}