package handlers

import (
	"net/http"

	"oidc-oauth2-server/services"

	"github.com/gin-gonic/gin"
)

type ClientHandler struct {
	clientService *services.ClientService
}

func NewClientHandler(clientService *services.ClientService) *ClientHandler {
	return &ClientHandler{clientService: clientService}
}

// RegisterRoutes 注册路由
func (h *ClientHandler) RegisterRoutes(router *gin.Engine) {
	api := router.Group("/api")
	{
		api.POST("/clients", h.CreateClient)
		api.PUT("/clients/:id", h.UpdateClient)
		api.DELETE("/clients/:id", h.DeleteClient)
	}
}

// CreateClient 创建客户端
func (h *ClientHandler) CreateClient(c *gin.Context) {
	var req services.ClientRegistrationRequest
	if err := c.ShouldBindJSON(&req); err != nil {
		c.JSON(http.StatusBadRequest, gin.H{"error": err.Error()})
		return
	}

	client, err := h.clientService.RegisterClient(&req)
	if err != nil {
		c.JSON(http.StatusInternalServerError, gin.H{"error": err.Error()})
		return
	}

	c.JSON(http.StatusCreated, client)
}

// UpdateClient 更新客户端
func (h *ClientHandler) UpdateClient(c *gin.Context) {
	clientID := c.Param("id")

	var req services.ClientRegistrationRequest
	if err := c.ShouldBindJSON(&req); err != nil {
		c.JSON(http.StatusBadRequest, gin.H{"error": err.Error()})
		return
	}

	client, err := h.clientService.UpdateClient(clientID, &req)
	if err != nil {
		c.JSON(http.StatusInternalServerError, gin.H{"error": err.Error()})
		return
	}

	c.JSON(http.StatusOK, client)
}

// DeleteClient 删除客户端
func (h *ClientHandler) DeleteClient(c *gin.Context) {
	clientID := c.Param("id")

	if err := h.clientService.DeleteClient(clientID); err != nil {
		c.JSON(http.StatusInternalServerError, gin.H{"error": err.Error()})
		return
	}

	c.Status(http.StatusOK)
}