/*
 * Please refer to the LICENSE file in the root directory of the project.
 * https://github.com/kubesphere/kubesphere/blob/master/LICENSE
 */

package v1beta1

import (
	"net/http"

	"github.com/Masterminds/semver/v3"
	corev1 "k8s.io/api/core/v1"
	quotav1alpha2 "kubesphere.io/api/quota/v1alpha2"
	"kubesphere.io/api/tenant/v1beta1"

	"kubesphere.io/kubesphere/pkg/simple/client/overview"

	restfulspec "github.com/emicklei/go-restful-openapi/v2"
	"github.com/emicklei/go-restful/v3"
	"k8s.io/apimachinery/pkg/runtime/schema"
	tenantv1beta1 "kubesphere.io/api/tenant/v1beta1"
	runtimeclient "sigs.k8s.io/controller-runtime/pkg/client"

	"kubesphere.io/kubesphere/pkg/api"
	"kubesphere.io/kubesphere/pkg/apiserver/authorization/authorizer"
	"kubesphere.io/kubesphere/pkg/apiserver/rest"
	"kubesphere.io/kubesphere/pkg/apiserver/runtime"
	"kubesphere.io/kubesphere/pkg/models"
	"kubesphere.io/kubesphere/pkg/models/iam/am"
	"kubesphere.io/kubesphere/pkg/models/iam/im"
	"kubesphere.io/kubesphere/pkg/models/tenant"
	"kubesphere.io/kubesphere/pkg/server/errors"
	"kubesphere.io/kubesphere/pkg/utils/clusterclient"
)

const (
	GroupName = "tenant.kubesphere.io"
)

var GroupVersion = schema.GroupVersion{Group: GroupName, Version: "v1beta1"}

func Resource(resource string) schema.GroupResource {
	return GroupVersion.WithResource(resource).GroupResource()
}

func NewHandler(client runtimeclient.Client, k8sVersion *semver.Version, clusterClient clusterclient.Interface, am am.AccessManagementInterface,
	im im.IdentityManagementInterface, authorizer authorizer.Authorizer, counter overview.Counter) rest.Handler {
	return &handler{
		auth:    authorizer,
		client:  client,
		counter: counter,
		tenant:  tenant.New(client, k8sVersion, clusterClient, am, im, authorizer),
	}
}

func NewFakeHandler() rest.Handler {
	return &handler{}
}

func (h *handler) AddToContainer(c *restful.Container) error {
	mimePatch := []string{restful.MIME_JSON, runtime.MimeMergePatchJson, runtime.MimeJsonPatchJson}
	ws := runtime.NewWebService(GroupVersion)

	ws.Route(ws.POST("/workspacetemplates").
		To(h.CreateWorkspaceTemplate).
		Doc("Create workspace template").
		Operation("create-workspace-template").
		Metadata(restfulspec.KeyOpenAPITags, []string{api.TagUserRelatedResources}).
		Reads(tenantv1beta1.WorkspaceTemplate{}).
		Returns(http.StatusOK, api.StatusOK, tenantv1beta1.WorkspaceTemplate{}))

	ws.Route(ws.DELETE("/workspacetemplates/{workspace}").
		To(h.DeleteWorkspaceTemplate).
		Doc("Delete workspace template").
		Operation("delete-workspace-template").
		Metadata(restfulspec.KeyOpenAPITags, []string{api.TagUserRelatedResources}).
		Param(ws.PathParameter("workspace", "The specified workspace.")).
		Returns(http.StatusOK, api.StatusOK, errors.None))

	ws.Route(ws.PUT("/workspacetemplates/{workspace}").
		To(h.UpdateWorkspaceTemplate).
		Doc("Update workspace template").
		Operation("update-workspace-template").
		Metadata(restfulspec.KeyOpenAPITags, []string{api.TagUserRelatedResources}).
		Param(ws.PathParameter("workspace", "The specified workspace.")).
		Reads(tenantv1beta1.WorkspaceTemplate{}).
		Returns(http.StatusOK, api.StatusOK, tenantv1beta1.WorkspaceTemplate{}))

	ws.Route(ws.PATCH("/workspacetemplates/{workspace}").
		To(h.PatchWorkspaceTemplate).
		Consumes(mimePatch...).
		Doc("Patch workspace template").
		Operation("patch-workspace-template").
		Metadata(restfulspec.KeyOpenAPITags, []string{api.TagUserRelatedResources}).
		Param(ws.PathParameter("workspace", "The specified workspace.")).
		Reads(tenantv1beta1.WorkspaceTemplate{}).
		Returns(http.StatusOK, api.StatusOK, tenantv1beta1.WorkspaceTemplate{}))

	ws.Route(ws.GET("/workspacetemplates").
		To(h.ListWorkspaceTemplates).
		Doc("List all workspace templates").
		Operation("list-workspace-templates").
		Metadata(restfulspec.KeyOpenAPITags, []string{api.TagUserRelatedResources}).
		Returns(http.StatusOK, api.StatusOK, models.PageableResponse{}))

	ws.Route(ws.GET("/workspacetemplates/{workspace}").
		To(h.DescribeWorkspaceTemplate).
		Doc("Get workspace template").
		Operation("get-workspace-template").
		Metadata(restfulspec.KeyOpenAPITags, []string{api.TagUserRelatedResources}).
		Param(ws.PathParameter("workspace", "The specified workspace.")).
		Returns(http.StatusOK, api.StatusOK, tenantv1beta1.WorkspaceTemplate{}))

	ws.Route(ws.GET("/workspaces").
		To(h.ListWorkspaces).
		Doc("List all workspaces").
		Metadata(restfulspec.KeyOpenAPITags, []string{api.TagUserRelatedResources}).
		Returns(http.StatusOK, api.StatusOK, models.PageableResponse{}))

	ws.Route(ws.GET("/workspaces/{workspace}").
		To(h.GetWorkspace).
		Doc("Get workspace").
		Metadata(restfulspec.KeyOpenAPITags, []string{api.TagUserRelatedResources}).
		Param(ws.PathParameter("workspace", "The specified workspace.")).
		Returns(http.StatusOK, api.StatusOK, v1beta1.Workspace{}))

	ws.Route(ws.GET("/clusters").
		To(h.ListClusters).
		Doc("List clusters available to users").
		Metadata(restfulspec.KeyOpenAPITags, []string{api.TagUserRelatedResources}).
		Operation("user-related-clusters").
		Returns(http.StatusOK, api.StatusOK, api.ListResult{}))

	ws.Route(ws.POST("/workspaces").
		To(h.CreateWorkspaceTemplate).
		Doc("Create workspace").
		Metadata(restfulspec.KeyOpenAPITags, []string{api.TagUserRelatedResources}).
		Operation("create-workspace").
		Reads(tenantv1beta1.WorkspaceTemplate{}).
		Returns(http.StatusOK, api.StatusOK, tenantv1beta1.WorkspaceTemplate{}))

	ws.Route(ws.DELETE("/workspaces/{workspace}").
		To(h.DeleteWorkspaceTemplate).
		Doc("Delete workspace").
		Metadata(restfulspec.KeyOpenAPITags, []string{api.TagUserRelatedResources}).
		Operation("delete-workspace").
		Param(ws.PathParameter("workspace", "The specified workspace.")).
		Returns(http.StatusOK, api.StatusOK, errors.None))

	ws.Route(ws.PUT("/workspaces/{workspace}").
		To(h.UpdateWorkspaceTemplate).
		Doc("Update workspace").
		Operation("update-workspace").
		Metadata(restfulspec.KeyOpenAPITags, []string{api.TagUserRelatedResources}).
		Param(ws.PathParameter("workspace", "The specified workspace.")).
		Reads(tenantv1beta1.WorkspaceTemplate{}).
		Returns(http.StatusOK, api.StatusOK, tenantv1beta1.WorkspaceTemplate{}))

	ws.Route(ws.PATCH("/workspaces/{workspace}").
		To(h.PatchWorkspaceTemplate).
		Consumes(mimePatch...).
		Reads(tenantv1beta1.WorkspaceTemplate{}).
		Doc("Update workspace").
		Operation("patch-workspace").
		Metadata(restfulspec.KeyOpenAPITags, []string{api.TagUserRelatedResources}).
		Param(ws.PathParameter("workspace", "The specified workspace.")).
		Returns(http.StatusOK, api.StatusOK, tenantv1beta1.WorkspaceTemplate{}))

	ws.Route(ws.GET("/workspaces").
		To(h.ListWorkspaceTemplates).
		Doc("List workspaces").
		Operation("list-workspaces").
		Metadata(restfulspec.KeyOpenAPITags, []string{api.TagUserRelatedResources}).
		Returns(http.StatusOK, api.StatusOK, models.PageableResponse{}))

	ws.Route(ws.GET("/workspaces/{workspace}").
		To(h.DescribeWorkspaceTemplate).
		Doc("Get workspace").
		Metadata(restfulspec.KeyOpenAPITags, []string{api.TagUserRelatedResources}).
		Operation("get-workspace").
		Param(ws.PathParameter("workspace", "The specified workspace.")).
		Returns(http.StatusOK, api.StatusOK, tenantv1beta1.WorkspaceTemplate{}))

	ws.Route(ws.GET("/workspaces/{workspace}/clusters").
		To(h.ListWorkspaceClusters).
		Doc("List clusters authorized to the specified workspace").
		Metadata(restfulspec.KeyOpenAPITags, []string{api.TagUserRelatedResources}).
		Param(ws.PathParameter("workspace", "The specified workspace.")).
		Returns(http.StatusOK, api.StatusOK, api.ListResult{}))

	ws.Route(ws.GET("/namespaces").
		To(h.ListNamespaces).
		Doc("List the namespaces for the current user").
		Metadata(restfulspec.KeyOpenAPITags, []string{api.TagUserRelatedResources}).
		Operation("list-namespaces").
		Returns(http.StatusOK, api.StatusOK, api.ListResult{}))

	ws.Route(ws.GET("/workspaces/{workspace}/namespaces").
		To(h.ListNamespaces).
		Doc("List the namespaces in workspace").
		Operation("list-namespaces-workspace").
		Metadata(restfulspec.KeyOpenAPITags, []string{api.TagUserRelatedResources}).
		Param(ws.PathParameter("workspace", "The specified workspace.")).
		Returns(http.StatusOK, api.StatusOK, api.ListResult{}))

	ws.Route(ws.GET("/workspaces/{workspace}/namespaces/{namespace}").
		To(h.DescribeNamespace).
		Doc("Get namespace").
		Metadata(restfulspec.KeyOpenAPITags, []string{api.TagUserRelatedResources}).
		Param(ws.PathParameter("workspace", "The specified workspace.")).
		Param(ws.PathParameter("namespace", "The specified namespace.")).
		Returns(http.StatusOK, api.StatusOK, corev1.Namespace{}))

	ws.Route(ws.DELETE("/workspaces/{workspace}/namespaces/{namespace}").
		To(h.DeleteNamespace).
		Doc("Delete namespace from workspace").
		Metadata(restfulspec.KeyOpenAPITags, []string{api.TagUserRelatedResources}).
		Param(ws.PathParameter("workspace", "The specified workspace.")).
		Param(ws.PathParameter("namespace", "The specified namespace.")).
		Returns(http.StatusOK, api.StatusOK, errors.None))

	ws.Route(ws.POST("/workspaces/{workspace}/namespaces").
		To(h.CreateNamespace).
		Doc("Create namespace in workspace").
		Metadata(restfulspec.KeyOpenAPITags, []string{api.TagUserRelatedResources}).
		Param(ws.PathParameter("workspace", "The specified workspace.")).
		Reads(corev1.Namespace{}).
		Returns(http.StatusOK, api.StatusOK, corev1.Namespace{}))

	ws.Route(ws.GET("/workspaces/{workspace}/workspacemembers/{workspacemember}/namespaces").
		To(h.ListNamespaces).
		Doc("List namespaces in workspace of the member").
		Operation("list-namespaces-workspace-member").
		Metadata(restfulspec.KeyOpenAPITags, []string{api.TagUserRelatedResources}).
		Param(ws.PathParameter("workspace", "The specified workspace.")).
		Param(ws.PathParameter("workspacemember", "workspacemember username")).
		Reads(corev1.Namespace{}).
		Returns(http.StatusOK, api.StatusOK, corev1.Namespace{}))

	ws.Route(ws.PUT("/workspaces/{workspace}/namespaces/{namespace}").
		To(h.UpdateNamespace).
		Doc("Update namespace").
		Metadata(restfulspec.KeyOpenAPITags, []string{api.TagUserRelatedResources}).
		Notes("Update namespace").
		Param(ws.PathParameter("workspace", "The specified workspace.")).
		Param(ws.PathParameter("namespace", "The specified namespace.")).
		Reads(corev1.Namespace{}).
		Returns(http.StatusOK, api.StatusOK, corev1.Namespace{}))

	ws.Route(ws.PATCH("/workspaces/{workspace}/namespaces/{namespace}").
		To(h.PatchNamespace).
		Consumes(mimePatch...).
		Doc("Patch namespace").
		Metadata(restfulspec.KeyOpenAPITags, []string{api.TagUserRelatedResources}).
		Notes("Patch the specified namespace in workspace.").
		Param(ws.PathParameter("workspace", "The specified workspace.")).
		Param(ws.PathParameter("namespace", "The specified namespace.")).
		Reads(corev1.Namespace{}).
		Returns(http.StatusOK, api.StatusOK, corev1.Namespace{}))

	ws.Route(ws.POST("/workspaces/{workspace}/resourcequotas").
		To(h.CreateWorkspaceResourceQuota).
		Doc("Create workspace resource quota").
		Metadata(restfulspec.KeyOpenAPITags, []string{api.TagUserRelatedResources}).
		Param(ws.PathParameter("workspace", "The specified workspace.")).
		Reads(quotav1alpha2.ResourceQuota{}).
		Returns(http.StatusOK, api.StatusOK, quotav1alpha2.ResourceQuota{}))

	ws.Route(ws.DELETE("/workspaces/{workspace}/resourcequotas/{resourcequota}").
		To(h.DeleteWorkspaceResourceQuota).
		Doc("Delete workspace resource quota.").
		Metadata(restfulspec.KeyOpenAPITags, []string{api.TagUserRelatedResources}).
		Param(ws.PathParameter("workspace", "The specified workspace.")).
		Param(ws.PathParameter("resourcequota", "resource quota name")).
		Returns(http.StatusOK, api.StatusOK, errors.None))

	ws.Route(ws.PUT("/workspaces/{workspace}/resourcequotas/{resourcequota}").
		To(h.UpdateWorkspaceResourceQuota).
		Doc("Update workspace resource quota").
		Metadata(restfulspec.KeyOpenAPITags, []string{api.TagUserRelatedResources}).
		Param(ws.PathParameter("workspace", "The specified workspace.")).
		Param(ws.PathParameter("resourcequota", "Resource quota name")).
		Reads(quotav1alpha2.ResourceQuota{}).
		Returns(http.StatusOK, api.StatusOK, quotav1alpha2.ResourceQuota{}))

	ws.Route(ws.GET("/workspaces/{workspace}/resourcequotas/{resourcequota}").
		To(h.DescribeWorkspaceResourceQuota).
		Doc("Get workspace resource quota").
		Metadata(restfulspec.KeyOpenAPITags, []string{api.TagUserRelatedResources}).
		Param(ws.PathParameter("workspace", "The specified workspace.")).
		Param(ws.PathParameter("resourcequota", "Resource quota name")).
		Returns(http.StatusOK, api.StatusOK, quotav1alpha2.ResourceQuota{}))

	ws.Route(ws.GET("/workspaces/{workspace}/metrics").
		To(h.GetWorkspaceMetrics).
		Doc("Get workspace metrics").
		Metadata(restfulspec.KeyOpenAPITags, []string{api.TagUserRelatedResources}).
		Param(ws.PathParameter("workspace", "The specified workspace.")).
		Returns(http.StatusOK, api.StatusOK, overview.MetricResults{}))

	ws.Route(ws.GET("/metrics").
		To(h.GetPlatformMetrics).
		Doc("Get platform metrics").
		Metadata(restfulspec.KeyOpenAPITags, []string{api.TagUserRelatedResources}).
		Returns(http.StatusOK, api.StatusOK, overview.MetricResults{}))

	c.Add(ws)
	return nil
}