package controller

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

	"ezops/model"

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

func (h *KubernetesHandler) ListDeployments(c *gin.Context) {
	clusterID, _ := strconv.Atoi(c.Param("id"))
	namespace := c.Query("namespace")

	client, _, err := h.getK8sClient(clusterID)
	if err != nil {
		c.JSON(http.StatusInternalServerError, model.Response{Code: 500, Message: err.Error()})
		return
	}
	deps, err := client.ListDeployments()
	if err != nil {
		c.JSON(http.StatusInternalServerError, model.Response{Code: 500, Message: "K8s API error: " + err.Error()})
		return
	}

	type DepSummary struct {
		Namespace         string `json:"namespace"`
		Name              string `json:"name"`
		Replicas          int    `json:"replicas"`
		AvailableReplicas int    `json:"available_replicas"`
		ReadyReplicas     int    `json:"ready_replicas"`
		Image             string `json:"image"`
	}
	result := []DepSummary{}
	for _, d := range deps.Items {
		if namespace != "" && d.Metadata.Namespace != namespace {
			continue
		}
		image := ""
		if len(d.Spec.Template.Spec.Containers) > 0 {
			image = d.Spec.Template.Spec.Containers[0].Image
		}
		result = append(result, DepSummary{
			Namespace:         d.Metadata.Namespace,
			Name:              d.Metadata.Name,
			Replicas:          d.Spec.Replicas,
			AvailableReplicas: d.Status.AvailableReplicas,
			ReadyReplicas:     d.Status.ReadyReplicas,
			Image:             image,
		})
	}
	c.JSON(http.StatusOK, model.Response{Code: 200, Message: "success", Data: result})
}

// ListServices 获取Service列表
// @Summary 获取Service列表
// @Description 获取指定集群的Service列表
// @Tags K8s集群
// @Produce json
// @Security Bearer
// @Param id path int true "集群ID"
// @Param namespace query string false "命名空间"
// @Success 200 {object} model.Response{data=[]model.KubernetesService}
// @Router /kubernetes-clusters/{id}/services [get]
func (h *KubernetesHandler) ScaleDeployment(c *gin.Context) {
	clusterID, _ := strconv.Atoi(c.Param("id"))
	namespace := c.Param("namespace")
	name := c.Param("name")

	var req struct {
		Replicas int `json:"replicas"`
	}
	if err := c.ShouldBindJSON(&req); err != nil {
		c.JSON(http.StatusBadRequest, model.Response{Code: 400, Message: "参数错误"})
		return
	}
	if req.Replicas < 0 {
		c.JSON(http.StatusBadRequest, model.Response{Code: 400, Message: "副本数不能为负数"})
		return
	}

	client, _, err := h.getK8sClient(clusterID)
	if err != nil {
		c.JSON(http.StatusInternalServerError, model.Response{Code: 500, Message: err.Error()})
		return
	}

	if err := client.ScaleDeployment(namespace, name, req.Replicas); err != nil {
		c.JSON(http.StatusInternalServerError, model.Response{Code: 500, Message: "扩缩容失败: " + err.Error()})
		return
	}

	c.JSON(http.StatusOK, model.Response{Code: 200, Message: fmt.Sprintf("已设置为 %d 副本", req.Replicas)})
}

// RestartDeployment 重启 Deployment (滚动重启)
func (h *KubernetesHandler) RestartDeployment(c *gin.Context) {
	clusterID, _ := strconv.Atoi(c.Param("id"))
	namespace := c.Param("namespace")
	name := c.Param("name")

	client, _, err := h.getK8sClient(clusterID)
	if err != nil {
		c.JSON(http.StatusInternalServerError, model.Response{Code: 500, Message: err.Error()})
		return
	}

	if err := client.RestartDeployment(namespace, name); err != nil {
		c.JSON(http.StatusInternalServerError, model.Response{Code: 500, Message: "重启失败: " + err.Error()})
		return
	}

	c.JSON(http.StatusOK, model.Response{Code: 200, Message: "重启指令已下发"})
}

// PauseDeployment 暂停 Deployment 滚动更新（spec.paused=true）
func (h *KubernetesHandler) PauseDeployment(c *gin.Context) {
	clusterID, _ := strconv.Atoi(c.Param("id"))
	namespace := c.Param("namespace")
	name := c.Param("name")

	client, _, err := h.getK8sClient(clusterID)
	if err != nil {
		c.JSON(http.StatusInternalServerError, model.Response{Code: 500, Message: err.Error()})
		return
	}

	if err := client.PauseDeployment(namespace, name); err != nil {
		c.JSON(http.StatusInternalServerError, model.Response{Code: 500, Message: "暂停更新失败: " + err.Error()})
		return
	}

	c.JSON(http.StatusOK, model.Response{Code: 200, Message: "已暂停滚动更新"})
}

// ResumeDeployment 恢复 Deployment 滚动更新（spec.paused=false）
func (h *KubernetesHandler) ResumeDeployment(c *gin.Context) {
	clusterID, _ := strconv.Atoi(c.Param("id"))
	namespace := c.Param("namespace")
	name := c.Param("name")

	client, _, err := h.getK8sClient(clusterID)
	if err != nil {
		c.JSON(http.StatusInternalServerError, model.Response{Code: 500, Message: err.Error()})
		return
	}

	if err := client.ResumeDeployment(namespace, name); err != nil {
		c.JSON(http.StatusInternalServerError, model.Response{Code: 500, Message: "恢复更新失败: " + err.Error()})
		return
	}

	c.JSON(http.StatusOK, model.Response{Code: 200, Message: "已恢复滚动更新"})
}

// ============================================================================
// HPA 管理
// ============================================================================

// ListHPAs 获取 HPA 列表
func (h *KubernetesHandler) UpdateDeploymentImage(c *gin.Context) {
	clusterID, _ := strconv.Atoi(c.Param("id"))
	namespace := c.Param("namespace")
	name := c.Param("name")

	var req struct {
		Image         string `json:"image"`
		ContainerName string `json:"container_name"`
	}
	if err := c.ShouldBindJSON(&req); err != nil {
		c.JSON(http.StatusBadRequest, model.Response{Code: 400, Message: "参数错误"})
		return
	}
	if req.Image == "" {
		c.JSON(http.StatusBadRequest, model.Response{Code: 400, Message: "image 不能为空"})
		return
	}

	client, _, err := h.getK8sClient(clusterID)
	if err != nil {
		c.JSON(http.StatusInternalServerError, model.Response{Code: 500, Message: err.Error()})
		return
	}

	if err := client.UpdateDeploymentImage(namespace, name, req.ContainerName, req.Image); err != nil {
		c.JSON(http.StatusInternalServerError, model.Response{Code: 500, Message: "更新镜像失败: " + err.Error()})
		return
	}

	c.JSON(http.StatusOK, model.Response{Code: 200, Message: fmt.Sprintf("镜像已更新为 %s，正在滚动更新...", req.Image)})
}

// ============================================================================
// Namespace
// ============================================================================

// ListNamespaces 获取命名空间列表
func (h *KubernetesHandler) ListDeploymentsNS(c *gin.Context) {
	h.listDeploymentsWithNS(c, c.Param("namespace"))
}

// GetDeploymentNS 获取单个 Deployment 详情（避免前端 404）// Logan.Li
func (h *KubernetesHandler) GetDeploymentNS(c *gin.Context) {
	ns := c.Param("namespace")
	name := c.Param("name")
	clusterID, _ := strconv.Atoi(c.Param("id"))
	if clusterID == 0 { clusterID = h.resolveClusterCode(c.Param("clusterCode")) }
	client, _, err := h.getK8sClient(clusterID)
	if err != nil { c.JSON(500, model.Response{Code: 500, Message: err.Error()}); return }
	deps, err := client.ListDeployments()
	if err != nil { c.JSON(500, model.Response{Code: 500, Message: "K8s API error: " + err.Error()}); return }
	for _, d := range deps.Items {
		if d.Metadata.Namespace == ns && d.Metadata.Name == name {
			image := ""
			if len(d.Spec.Template.Spec.Containers) > 0 { image = d.Spec.Template.Spec.Containers[0].Image }
			c.JSON(200, model.Response{Code: 200, Data: map[string]interface{}{
				"namespace":          d.Metadata.Namespace,
				"name":               d.Metadata.Name,
				"replicas":           d.Spec.Replicas,
				"available_replicas": d.Status.AvailableReplicas,
				"ready_replicas":     d.Status.ReadyReplicas,
				"image":              image,
				"paused":             d.Spec.Paused,
			}})
			return
		}
	}
	c.JSON(404, model.Response{Code: 404, Message: "Deployment not found"})
}
func (h *KubernetesHandler) ScaleDeploymentNS(c *gin.Context) {
	h.scaleDeploymentWithNS(c, c.Param("namespace"))
}
func (h *KubernetesHandler) RestartDeploymentNS(c *gin.Context) {
	h.restartDeploymentWithNS(c, c.Param("namespace"))
}
func (h *KubernetesHandler) UpdateDeploymentImageNS(c *gin.Context) {
	h.updateDeploymentImageWithNS(c, c.Param("namespace"))
}
func (h *KubernetesHandler) PauseDeploymentNS(c *gin.Context) {
	h.pauseDeploymentWithNS(c, c.Param("namespace"))
}
func (h *KubernetesHandler) ResumeDeploymentNS(c *gin.Context) {
	h.resumeDeploymentWithNS(c, c.Param("namespace"))
}
func (h *KubernetesHandler) listDeploymentsWithNS(c *gin.Context, ns string) {
	clusterID, _ := strconv.Atoi(c.Param("id"))
	if clusterID == 0 { clusterID = h.resolveClusterCode(c.Param("clusterCode")) }
	client, _, err := h.getK8sClient(clusterID)
	if err != nil { c.JSON(500, model.Response{Code: 500, Message: err.Error()}); return }
	deps, err := client.ListDeployments()
	if err != nil { c.JSON(500, model.Response{Code: 500, Message: "K8s API error: " + err.Error()}); return }
	type DepSummary struct {
		Namespace         string            `json:"namespace"`
		Name              string            `json:"name"`
		Replicas          int               `json:"replicas"`
		AvailableReplicas int               `json:"available_replicas"`
		ReadyReplicas     int               `json:"ready_replicas"`
		Image             string            `json:"image"`
		Paused            bool              `json:"paused"`
		Selector          map[string]string `json:"selector,omitempty"` // matchLabels — 前端 Service Tab 关联用
	}
	result := []DepSummary{}
	for _, d := range deps.Items {
		if d.Metadata.Namespace != ns { continue }
		image := ""; if len(d.Spec.Template.Spec.Containers) > 0 { image = d.Spec.Template.Spec.Containers[0].Image }
		result = append(result, DepSummary{
			Namespace:         d.Metadata.Namespace,
			Name:              d.Metadata.Name,
			Replicas:          d.Spec.Replicas,
			AvailableReplicas: d.Status.AvailableReplicas,
			ReadyReplicas:     d.Status.ReadyReplicas,
			Image:             image,
			Paused:            d.Spec.Paused,
			Selector:          func() map[string]string { if d.Spec.Selector != nil { return d.Spec.Selector.MatchLabels }; return nil }(),
		})
	}
	c.JSON(200, model.Response{Code: 200, Data: result})
}
func (h *KubernetesHandler) scaleDeploymentWithNS(c *gin.Context, ns string) {
	clusterID, _ := strconv.Atoi(c.Param("id"))
	if clusterID == 0 { clusterID = h.resolveClusterCode(c.Param("clusterCode")) }
	var req struct { Replicas int `json:"replicas"` }
	if err := c.ShouldBindJSON(&req); err != nil { c.JSON(400, model.Response{Code: 400, Message: "参数错误"}); return }
	client, _, err := h.getK8sClient(clusterID)
	if err != nil { c.JSON(500, model.Response{Code: 500, Message: err.Error()}); return }
	if err := client.ScaleDeployment(ns, c.Param("name"), req.Replicas); err != nil { c.JSON(500, model.Response{Code: 500, Message: "扩缩容失败: " + err.Error()}); return }
	c.JSON(200, model.Response{Code: 200, Message: fmt.Sprintf("已设置为 %d 副本", req.Replicas)})
}
func (h *KubernetesHandler) restartDeploymentWithNS(c *gin.Context, ns string) {
	clusterID, _ := strconv.Atoi(c.Param("id"))
	if clusterID == 0 { clusterID = h.resolveClusterCode(c.Param("clusterCode")) }
	client, _, err := h.getK8sClient(clusterID)
	if err != nil { c.JSON(500, model.Response{Code: 500, Message: err.Error()}); return }
	if err := client.RestartDeployment(ns, c.Param("name")); err != nil { c.JSON(500, model.Response{Code: 500, Message: "重启失败: " + err.Error()}); return }
	c.JSON(200, model.Response{Code: 200, Message: "重启指令已下发"})
}
func (h *KubernetesHandler) updateDeploymentImageWithNS(c *gin.Context, ns string) {
	clusterID, _ := strconv.Atoi(c.Param("id"))
	if clusterID == 0 { clusterID = h.resolveClusterCode(c.Param("clusterCode")) }
	var req struct { Image string `json:"image"`; ContainerName string `json:"container_name"` }
	if err := c.ShouldBindJSON(&req); err != nil { c.JSON(400, model.Response{Code: 400, Message: "参数错误"}); return }
	if strings.TrimSpace(req.Image) == "" { c.JSON(400, model.Response{Code: 400, Message: "image 不能为空"}); return }
	client, _, err := h.getK8sClient(clusterID)
	if err != nil { c.JSON(500, model.Response{Code: 500, Message: err.Error()}); return }
	if err := client.UpdateDeploymentImage(ns, c.Param("name"), req.ContainerName, req.Image); err != nil { c.JSON(500, model.Response{Code: 500, Message: "更新镜像失败: " + err.Error()}); return }
	c.JSON(200, model.Response{Code: 200, Message: fmt.Sprintf("镜像已更新为 %s", req.Image)})
}
func (h *KubernetesHandler) pauseDeploymentWithNS(c *gin.Context, ns string) {
	clusterID, _ := strconv.Atoi(c.Param("id"))
	if clusterID == 0 { clusterID = h.resolveClusterCode(c.Param("clusterCode")) }
	client, _, err := h.getK8sClient(clusterID)
	if err != nil { c.JSON(500, model.Response{Code: 500, Message: err.Error()}); return }
	if err := client.PauseDeployment(ns, c.Param("name")); err != nil { c.JSON(500, model.Response{Code: 500, Message: "暂停更新失败: " + err.Error()}); return }
	c.JSON(200, model.Response{Code: 200, Message: "已暂停滚动更新"})
}
func (h *KubernetesHandler) resumeDeploymentWithNS(c *gin.Context, ns string) {
	clusterID, _ := strconv.Atoi(c.Param("id"))
	if clusterID == 0 { clusterID = h.resolveClusterCode(c.Param("clusterCode")) }
	client, _, err := h.getK8sClient(clusterID)
	if err != nil { c.JSON(500, model.Response{Code: 500, Message: err.Error()}); return }
	if err := client.ResumeDeployment(ns, c.Param("name")); err != nil { c.JSON(500, model.Response{Code: 500, Message: "恢复更新失败: " + err.Error()}); return }
	c.JSON(200, model.Response{Code: 200, Message: "已恢复滚动更新"})
}
func (h *KubernetesHandler) ListDeploymentsAllNS(c *gin.Context) {
	clusterID := h.resolveClusterCode(c.Param("clusterCode"))
	if clusterID == 0 { c.JSON(500, model.Response{Code: 500, Message: "cluster not found"}); return }
	client, _, err := h.getK8sClient(clusterID)
	if err != nil { c.JSON(500, model.Response{Code: 500, Message: err.Error()}); return }
	deps, err := client.ListDeployments()
	if err != nil { c.JSON(500, model.Response{Code: 500, Message: "K8s API error: " + err.Error()}); return }
	type DepSummary struct {
		Namespace         string `json:"namespace"`
		Name              string `json:"name"`
		Replicas          int    `json:"replicas"`
		AvailableReplicas int    `json:"available_replicas"`
		ReadyReplicas     int    `json:"ready_replicas"`
		Image             string `json:"image"`
	}
	result := []DepSummary{}
	for _, d := range deps.Items {
		image := ""; if len(d.Spec.Template.Spec.Containers) > 0 { image = d.Spec.Template.Spec.Containers[0].Image }
		result = append(result, DepSummary{
			Namespace:         d.Metadata.Namespace,
			Name:              d.Metadata.Name,
			Replicas:          d.Spec.Replicas,
			AvailableReplicas: d.Status.AvailableReplicas,
			ReadyReplicas:     d.Status.ReadyReplicas,
			Image:             image,
		})
	}
	c.JSON(200, model.Response{Code: 200, Data: result})
}

// ListPodsAllNS lists all pods across all namespaces using clusterCode.
func (h *KubernetesHandler) ListStatefulSetsNS(c *gin.Context) {
	clusterID := h.resolveClusterCode(c.Param("clusterCode"))
	if clusterID == 0 { c.JSON(500, model.Response{Code: 500, Message: "cluster not found"}); return }
	client, _, err := h.getK8sClient(clusterID)
	if err != nil { c.JSON(500, model.Response{Code: 500, Message: err.Error()}); return }
	sts, err := client.ListStatefulSets()
	if err != nil { c.JSON(500, model.Response{Code: 500, Message: "K8s API error: " + err.Error()}); return }
	ns := c.Param("namespace")
	type StsSummary struct {
		Namespace string `json:"namespace"`
		Name      string `json:"name"`
		Replicas  int    `json:"replicas"`
		Ready     int    `json:"ready"`
		Image     string `json:"image"`
	}
	result := []StsSummary{}
	for _, s := range sts.Items {
		if s.Metadata.Namespace != ns { continue }
		image := ""; if len(s.Spec.Template.Spec.Containers) > 0 { image = s.Spec.Template.Spec.Containers[0].Image }
		result = append(result, StsSummary{
			Namespace: s.Metadata.Namespace,
			Name:      s.Metadata.Name,
			Replicas:  s.Spec.Replicas,
			Ready:     s.Status.ReadyReplicas,
			Image:     image,
		})
	}
	c.JSON(200, model.Response{Code: 200, Data: result})
}

// ListDaemonSetsNS lists DaemonSets in a namespace
func (h *KubernetesHandler) ListDaemonSetsNS(c *gin.Context) {
	clusterID := h.resolveClusterCode(c.Param("clusterCode"))
	if clusterID == 0 { c.JSON(500, model.Response{Code: 500, Message: "cluster not found"}); return }
	client, _, err := h.getK8sClient(clusterID)
	if err != nil { c.JSON(500, model.Response{Code: 500, Message: err.Error()}); return }
	ds, err := client.ListDaemonSets()
	if err != nil { c.JSON(500, model.Response{Code: 500, Message: "K8s API error: " + err.Error()}); return }
	ns := c.Param("namespace")
	type DsSummary struct {
		Namespace string `json:"namespace"`
		Name      string `json:"name"`
		Desired   int    `json:"desired"`
		Current   int    `json:"current"`
		Ready     int    `json:"ready"`
		Image     string `json:"image"`
	}
	result := []DsSummary{}
	for _, d := range ds.Items {
		if d.Metadata.Namespace != ns { continue }
		image := ""; if len(d.Spec.Template.Spec.Containers) > 0 { image = d.Spec.Template.Spec.Containers[0].Image }
		result = append(result, DsSummary{
			Namespace: d.Metadata.Namespace,
			Name:      d.Metadata.Name,
			Desired:   d.Status.DesiredNumberScheduled,
			Current:   d.Status.CurrentNumberScheduled,
			Ready:     d.Status.NumberReady,
			Image:     image,
		})
	}
	c.JSON(200, model.Response{Code: 200, Data: result})
}
// ScaleStatefulSetNS scales a StatefulSet (Kuboard code route)
func (h *KubernetesHandler) ScaleStatefulSetNS(c *gin.Context) {
	clusterID := h.resolveClusterCode(c.Param("clusterCode"))
	if clusterID == 0 { c.JSON(500, model.Response{Code: 500, Message: "cluster not found"}); return }
	client, _, err := h.getK8sClient(clusterID)
	if err != nil { c.JSON(500, model.Response{Code: 500, Message: err.Error()}); return }
	ns := c.Param("namespace")
	name := c.Param("name")
	var req struct{ Replicas int `json:"replicas"` }
	if err := c.ShouldBindJSON(&req); err != nil { c.JSON(400, model.Response{Code: 400, Message: "参数错误"}); return }
	if err := client.ScaleStatefulSet(ns, name, req.Replicas); err != nil {
		c.JSON(500, model.Response{Code: 500, Message: "扩缩容失败: " + err.Error()}); return
	}
	c.JSON(200, model.Response{Code: 200, Message: "StatefulSet 副本数已更新为 " + strconv.Itoa(req.Replicas)})
}

// ScaleStatefulSet scales a StatefulSet (ID route)
func (h *KubernetesHandler) ScaleStatefulSet(c *gin.Context) {
	clusterID, _ := strconv.Atoi(c.Param("id"))
	if clusterID == 0 { clusterID = h.resolveClusterCode(c.Param("clusterCode")) }
	if clusterID == 0 { c.JSON(500, model.Response{Code: 500, Message: "cluster not found"}); return }
	client, _, err := h.getK8sClient(clusterID)
	if err != nil { c.JSON(500, model.Response{Code: 500, Message: err.Error()}); return }
	ns := c.Param("namespace")
	name := c.Param("name")
	var req struct{ Replicas int `json:"replicas"` }
	if err := c.ShouldBindJSON(&req); err != nil { c.JSON(400, model.Response{Code: 400, Message: "参数错误"}); return }
	if err := client.ScaleStatefulSet(ns, name, req.Replicas); err != nil {
		c.JSON(500, model.Response{Code: 500, Message: "扩缩容失败: " + err.Error()}); return
	}
	c.JSON(200, model.Response{Code: 200, Message: "StatefulSet 副本数已更新为 " + strconv.Itoa(req.Replicas)})
}

// RestartStatefulSetNS restarts a StatefulSet (Kuboard code route)
func (h *KubernetesHandler) RestartStatefulSetNS(c *gin.Context) {
	clusterID := h.resolveClusterCode(c.Param("clusterCode"))
	if clusterID == 0 { c.JSON(500, model.Response{Code: 500, Message: "cluster not found"}); return }
	client, _, err := h.getK8sClient(clusterID)
	if err != nil { c.JSON(500, model.Response{Code: 500, Message: err.Error()}); return }
	ns := c.Param("namespace")
	name := c.Param("name")
	if err := client.RestartStatefulSet(ns, name); err != nil {
		c.JSON(500, model.Response{Code: 500, Message: "重启失败: " + err.Error()}); return
	}
	c.JSON(200, model.Response{Code: 200, Message: "StatefulSet 滚动重启已触发"})
}

// RestartStatefulSet restarts a StatefulSet (ID route)
func (h *KubernetesHandler) RestartStatefulSet(c *gin.Context) {
	clusterID, _ := strconv.Atoi(c.Param("id"))
	if clusterID == 0 { clusterID = h.resolveClusterCode(c.Param("clusterCode")) }
	if clusterID == 0 { c.JSON(500, model.Response{Code: 500, Message: "cluster not found"}); return }
	client, _, err := h.getK8sClient(clusterID)
	if err != nil { c.JSON(500, model.Response{Code: 500, Message: err.Error()}); return }
	ns := c.Param("namespace")
	name := c.Param("name")
	if err := client.RestartStatefulSet(ns, name); err != nil {
		c.JSON(500, model.Response{Code: 500, Message: "重启失败: " + err.Error()}); return
	}
	c.JSON(200, model.Response{Code: 200, Message: "StatefulSet 滚动重启已触发"})
}

// RestartDaemonSetNS restarts a DaemonSet (Kuboard code route)
func (h *KubernetesHandler) RestartDaemonSetNS(c *gin.Context) {
	clusterID := h.resolveClusterCode(c.Param("clusterCode"))
	if clusterID == 0 { c.JSON(500, model.Response{Code: 500, Message: "cluster not found"}); return }
	client, _, err := h.getK8sClient(clusterID)
	if err != nil { c.JSON(500, model.Response{Code: 500, Message: err.Error()}); return }
	ns := c.Param("namespace")
	name := c.Param("name")
	if err := client.RestartDaemonSet(ns, name); err != nil {
		c.JSON(500, model.Response{Code: 500, Message: "重启失败: " + err.Error()}); return
	}
	c.JSON(200, model.Response{Code: 200, Message: "DaemonSet 滚动重启已触发"})
}

// RestartDaemonSet restarts a DaemonSet (ID route)
func (h *KubernetesHandler) RestartDaemonSet(c *gin.Context) {
	clusterID, _ := strconv.Atoi(c.Param("id"))
	if clusterID == 0 { clusterID = h.resolveClusterCode(c.Param("clusterCode")) }
	if clusterID == 0 { c.JSON(500, model.Response{Code: 500, Message: "cluster not found"}); return }
	client, _, err := h.getK8sClient(clusterID)
	if err != nil { c.JSON(500, model.Response{Code: 500, Message: err.Error()}); return }
	ns := c.Param("namespace")
	name := c.Param("name")
	if err := client.RestartDaemonSet(ns, name); err != nil {
		c.JSON(500, model.Response{Code: 500, Message: "重启失败: " + err.Error()}); return
	}
	c.JSON(200, model.Response{Code: 200, Message: "DaemonSet 滚动重启已触发"})
}

// GetStatefulSetDetailNS returns a single StatefulSet detail (Kuboard code route)
func (h *KubernetesHandler) GetStatefulSetDetailNS(c *gin.Context) {
	clusterID := h.resolveClusterCode(c.Param("clusterCode"))
	if clusterID == 0 { c.JSON(500, model.Response{Code: 500, Message: "cluster not found"}); return }
	client, _, err := h.getK8sClient(clusterID)
	if err != nil { c.JSON(500, model.Response{Code: 500, Message: err.Error()}); return }
	ns := c.Param("namespace")
	name := c.Param("name")
	sts, err := client.GetStatefulSet(ns, name)
	if err != nil { c.JSON(500, model.Response{Code: 500, Message: "K8s API error: " + err.Error()}); return }
	c.JSON(200, model.Response{Code: 200, Data: sts})
}

// GetDaemonSetDetailNS returns a single DaemonSet detail (Kuboard code route)
func (h *KubernetesHandler) GetDaemonSetDetailNS(c *gin.Context) {
	clusterID := h.resolveClusterCode(c.Param("clusterCode"))
	if clusterID == 0 { c.JSON(500, model.Response{Code: 500, Message: "cluster not found"}); return }
	client, _, err := h.getK8sClient(clusterID)
	if err != nil { c.JSON(500, model.Response{Code: 500, Message: err.Error()}); return }
	ns := c.Param("namespace")
	name := c.Param("name")
	ds, err := client.GetDaemonSet(ns, name)
	if err != nil { c.JSON(500, model.Response{Code: 500, Message: "K8s API error: " + err.Error()}); return }
	c.JSON(200, model.Response{Code: 200, Data: ds})
}

// ============================================================================
// Pod Metrics (kubectl top pods) — per-container CPU/Memory usage via metrics-server
// ============================================================================

// GetPodMetrics returns pod-level CPU/Memory metrics
func (h *KubernetesHandler) ListReplicaSetsNS(c *gin.Context) {
	h.listReplicaSetsWithNS(c, c.Param("namespace"))
}
func (h *KubernetesHandler) listReplicaSetsWithNS(c *gin.Context, ns string) {
	clusterID, _ := strconv.Atoi(c.Param("id"))
	if clusterID == 0 { clusterID = h.resolveClusterCode(c.Param("clusterCode")) }
	client, _, err := h.getK8sClient(clusterID)
	if err != nil { c.JSON(500, model.Response{Code: 500, Message: err.Error()}); return }
	items, err := client.ListReplicaSetsRaw(ns)
	if err != nil { c.JSON(500, model.Response{Code: 500, Message: "K8s API error: " + err.Error()}); return }
	type RSSummary struct {
		Namespace         string `json:"namespace"`
		Name              string `json:"name"`
		Replicas          int    `json:"replicas"`
		AvailableReplicas int    `json:"available_replicas"`
		ReadyReplicas     int    `json:"ready_replicas"`
		Image             string `json:"image"`
		CreatedAt         string `json:"created_at"`
		Revision          string `json:"revision"`
		OwnerDeployment   string `json:"owner_deployment"`
	}
	result := []RSSummary{}
	for _, rs := range items {
		image := ""
		if len(rs.Spec.Template.Spec.Containers) > 0 { image = rs.Spec.Template.Spec.Containers[0].Image }
		revision := rs.Metadata.Annotations["deployment.kubernetes.io/revision"]
		owner := ""
		for _, o := range rs.Metadata.OwnerReferences {
			if o.Kind == "Deployment" { owner = o.Name; break }
		}
		result = append(result, RSSummary{
			Namespace:         rs.Metadata.Namespace,
			Name:              rs.Metadata.Name,
			Replicas:          rs.Spec.Replicas,
			AvailableReplicas: rs.Status.AvailableReplicas,
			ReadyReplicas:     rs.Status.ReadyReplicas,
			Image:             image,
			CreatedAt:         rs.Metadata.CreationTimestamp,
			Revision:          revision,
			OwnerDeployment:   owner,
		})
	}
	c.JSON(200, model.Response{Code: 200, Message: "success", Data: result})
}

// ListDeploymentRevisionsNS Deployment 发布历史（按 revision 倒序）
func (h *KubernetesHandler) ListDeploymentRevisionsNS(c *gin.Context) {
	h.listDeploymentRevisionsWithNS(c, c.Param("namespace"))
}
func (h *KubernetesHandler) listDeploymentRevisionsWithNS(c *gin.Context, ns string) {
	clusterID, _ := strconv.Atoi(c.Param("id"))
	if clusterID == 0 { clusterID = h.resolveClusterCode(c.Param("clusterCode")) }
	deploymentName := c.Param("name")
	if deploymentName == "" { c.JSON(400, model.Response{Code: 400, Message: "缺少 deployment name"}); return }
	client, _, err := h.getK8sClient(clusterID)
	if err != nil { c.JSON(500, model.Response{Code: 500, Message: err.Error()}); return }
	items, err := client.ListReplicaSetsRaw(ns)
	if err != nil { c.JSON(500, model.Response{Code: 500, Message: "K8s API error: " + err.Error()}); return }
	type Revision struct {
		Revision   string `json:"revision"`
		ReplicaSet string `json:"replica_set"`
		Replicas   int    `json:"replicas"`
		Image      string `json:"image"`
		CreatedAt  string `json:"created_at"`
		Current    bool   `json:"current"`
	}
	result := []Revision{}
	for _, rs := range items {
		isOwner := false
		for _, o := range rs.Metadata.OwnerReferences {
			if o.Kind == "Deployment" && o.Name == deploymentName { isOwner = true; break }
		}
		if !isOwner { continue }
		image := ""
		if len(rs.Spec.Template.Spec.Containers) > 0 { image = rs.Spec.Template.Spec.Containers[0].Image }
		result = append(result, Revision{
			Revision:   rs.Metadata.Annotations["deployment.kubernetes.io/revision"],
			ReplicaSet: rs.Metadata.Name,
			Replicas:   rs.Spec.Replicas,
			Image:      image,
			CreatedAt:  rs.Metadata.CreationTimestamp,
			Current:    rs.Spec.Replicas > 0,
		})
	}
	// 按 revision 数字倒序（最新在前）
	sort.Slice(result, func(i, j int) bool {
		ri, _ := strconv.Atoi(result[i].Revision)
		rj, _ := strconv.Atoi(result[j].Revision)
		return ri > rj
	})
	c.JSON(200, model.Response{Code: 200, Message: "success", Data: result})
}

// RollbackDeploymentNS 回滚 Deployment 到指定 revision 或指定 ReplicaSet
func (h *KubernetesHandler) RollbackDeploymentNS(c *gin.Context) {
	h.rollbackDeploymentWithNS(c, c.Param("namespace"))
}
func (h *KubernetesHandler) rollbackDeploymentWithNS(c *gin.Context, ns string) {
	clusterID, _ := strconv.Atoi(c.Param("id"))
	if clusterID == 0 { clusterID = h.resolveClusterCode(c.Param("clusterCode")) }
	deploymentName := c.Param("name")
	if deploymentName == "" { c.JSON(400, model.Response{Code: 400, Message: "缺少 deployment name"}); return }
	var req struct {
		Revision   int    `json:"revision"`
		ReplicaSet string `json:"replicaSet"`
	}
	_ = c.ShouldBindJSON(&req) // 允许空 body（但下面会校验）
	client, _, err := h.getK8sClient(clusterID)
	if err != nil { c.JSON(500, model.Response{Code: 500, Message: err.Error()}); return }

	targetRS := req.ReplicaSet
	// 通过 revision 定位 ReplicaSet
	if targetRS == "" && req.Revision > 0 {
		items, err := client.ListReplicaSetsRaw(ns)
		if err != nil { c.JSON(500, model.Response{Code: 500, Message: "获取 ReplicaSet 列表失败: " + err.Error()}); return }
		for _, rs := range items {
			isOwner := false
			for _, o := range rs.Metadata.OwnerReferences {
				if o.Kind == "Deployment" && o.Name == deploymentName { isOwner = true; break }
			}
			if !isOwner { continue }
			if rs.Metadata.Annotations["deployment.kubernetes.io/revision"] == strconv.Itoa(req.Revision) {
				targetRS = rs.Metadata.Name
				break
			}
		}
		if targetRS == "" {
			c.JSON(404, model.Response{Code: 404, Message: fmt.Sprintf("revision %d 的 ReplicaSet 未找到", req.Revision)})
			return
		}
	}
	if targetRS == "" { c.JSON(400, model.Response{Code: 400, Message: "需要 revision 或 replicaSet 参数"}); return }

	// 取 ReplicaSet 的 template，patch 到 Deployment.spec.template 实现回滚
	rsJSON, err := client.GetReplicaSet(ns, targetRS)
	if err != nil { c.JSON(500, model.Response{Code: 500, Message: "获取 ReplicaSet 失败: " + err.Error()}); return }
	specMap, ok := rsJSON["spec"].(map[string]interface{})
	if !ok { c.JSON(500, model.Response{Code: 500, Message: "ReplicaSet 缺少 spec"}); return }
	template, ok := specMap["template"].(map[string]interface{})
	if !ok { c.JSON(500, model.Response{Code: 500, Message: "ReplicaSet 缺少 template"}); return }

	if err := client.PatchDeploymentSpecTemplate(ns, deploymentName, template); err != nil {
		c.JSON(500, model.Response{Code: 500, Message: "回滚失败: " + err.Error()}); return
	}
	c.JSON(200, model.Response{
		Code:    200,
		Message: fmt.Sprintf("Deployment %s 已回滚到 %s", deploymentName, targetRS),
		Data:    gin.H{"replicaSet": targetRS, "revision": req.Revision},
	})
}

// ============================================================================
// Pod 删除 // Logan.Li
// ============================================================================

// DeletePodNS 删除指定 Pod