package controller

import (
	"net/http"
	"strconv"
	"strings"

	"ezops/model"

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

// ==================== 云平台（Platform / Cloud）====================

// PlatformHandler 云平台处理器
type PlatformHandler struct {
	db *gorm.DB
}

func NewPlatformHandler(db *gorm.DB) *PlatformHandler {
	return &PlatformHandler{db: db}
}

// platformRequest 云平台创建/更新请求
type platformRequest struct {
	Name        string `json:"name"`
	Code        string `json:"code"`
	Type        string `json:"type"`
	Status      string `json:"status"`
	Website     string `json:"website"`
	Description string `json:"description"`
}

// ListPlatforms 获取云平台列表
func (h *PlatformHandler) ListPlatforms(c *gin.Context) {
	var platforms []model.Cloud
	h.db.Find(&platforms)

	c.JSON(http.StatusOK, model.Response{
		Code:    200,
		Message: "success",
		Data: model.ListResponse{
			List:  platforms,
			Total: int64(len(platforms)),
		},
	})
}

// CreatePlatform 创建云平台
func (h *PlatformHandler) CreatePlatform(c *gin.Context) {
	var req platformRequest
	if err := c.ShouldBindJSON(&req); err != nil {
		c.JSON(http.StatusBadRequest, model.Response{Code: 400, Message: "请求参数错误: " + err.Error()})
		return
	}
	if strings.TrimSpace(req.Name) == "" || strings.TrimSpace(req.Code) == "" {
		c.JSON(http.StatusBadRequest, model.Response{Code: 400, Message: "平台名称和编码不能为空"})
		return
	}

	cloudType := strings.TrimSpace(req.Type)
	if cloudType == "" {
		cloudType = "public"
	}
	status := strings.TrimSpace(req.Status)
	if status == "" {
		status = "active"
	}

	platform := model.Cloud{
		Name:        strings.TrimSpace(req.Name),
		Code:        strings.TrimSpace(req.Code),
		Type:        cloudType,
		Status:      status,
		Website:     req.Website,
		Description: req.Description,
	}
	if err := h.db.Create(&platform).Error; err != nil {
		c.JSON(http.StatusInternalServerError, model.Response{Code: 500, Message: "创建失败，编码可能已存在"})
		return
	}
	c.JSON(http.StatusOK, model.Response{Code: 200, Message: "创建成功", Data: platform})
}

// UpdatePlatform 更新云平台
func (h *PlatformHandler) UpdatePlatform(c *gin.Context) {
	id, _ := strconv.Atoi(c.Param("id"))
	var req platformRequest
	if err := c.ShouldBindJSON(&req); err != nil {
		c.JSON(http.StatusBadRequest, model.Response{Code: 400, Message: "请求参数错误: " + err.Error()})
		return
	}

	var platform model.Cloud
	if err := h.db.First(&platform, id).Error; err != nil {
		c.JSON(http.StatusNotFound, model.Response{Code: 404, Message: "云平台不存在"})
		return
	}

	if strings.TrimSpace(req.Name) != "" {
		platform.Name = strings.TrimSpace(req.Name)
	}
	if strings.TrimSpace(req.Code) != "" {
		platform.Code = strings.TrimSpace(req.Code)
	}
	if strings.TrimSpace(req.Type) != "" {
		platform.Type = strings.TrimSpace(req.Type)
	}
	if strings.TrimSpace(req.Status) != "" {
		platform.Status = strings.TrimSpace(req.Status)
	}
	platform.Website = req.Website
	platform.Description = req.Description

	if err := h.db.Save(&platform).Error; err != nil {
		c.JSON(http.StatusInternalServerError, model.Response{Code: 500, Message: "更新失败"})
		return
	}
	c.JSON(http.StatusOK, model.Response{Code: 200, Message: "更新成功", Data: platform})
}

// DeletePlatform 删除云平台
func (h *PlatformHandler) DeletePlatform(c *gin.Context) {
	id, _ := strconv.Atoi(c.Param("id"))
	if err := h.db.Delete(&model.Cloud{}, id).Error; err != nil {
		c.JSON(http.StatusInternalServerError, model.Response{Code: 500, Message: "删除失败"})
		return
	}
	c.JSON(http.StatusOK, model.Response{Code: 200, Message: "删除成功"})
}