Ryan McKinley
133 lines
3.6 KiB
Go
133 lines
3.6 KiB
Go
package preferences
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import (
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"encoding/json"
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"net/http"
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"dario.cat/mergo"
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v1 "k8s.io/apimachinery/pkg/apis/meta/v1"
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"k8s.io/kube-openapi/pkg/common"
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"k8s.io/kube-openapi/pkg/spec3"
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"k8s.io/kube-openapi/pkg/validation/spec"
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preferences "github.com/grafana/grafana/apps/preferences/pkg/apis/preferences/v1alpha1"
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"github.com/grafana/grafana/pkg/apimachinery/identity"
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"github.com/grafana/grafana/pkg/registry/apis/preferences/legacy"
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"github.com/grafana/grafana/pkg/services/apiserver/builder"
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"github.com/grafana/grafana/pkg/setting"
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"github.com/grafana/grafana/pkg/util/errhttp"
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)
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type calculator struct {
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defaults preferences.PreferencesSpec
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sql *legacy.LegacySQL
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}
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func newCalculator(cfg *setting.Cfg, sql *legacy.LegacySQL) *calculator {
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return &calculator{
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sql: sql,
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defaults: preferences.PreferencesSpec{
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Theme: &cfg.DefaultTheme,
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Timezone: &cfg.DateFormats.DefaultTimezone,
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WeekStart: &cfg.DateFormats.DefaultWeekStart,
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Language: &cfg.DefaultLanguage,
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},
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}
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}
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func (s *calculator) GetAPIRoutes(defs map[string]common.OpenAPIDefinition) *builder.APIRoutes {
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schema := defs["github.com/grafana/grafana/apps/preferences/pkg/apis/preferences/v1alpha1.Preference"].Schema
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return &builder.APIRoutes{
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Namespace: []builder.APIRouteHandler{
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{
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Path: "current", // calculate?
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Spec: &spec3.PathProps{
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Get: &spec3.Operation{
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OperationProps: spec3.OperationProps{
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OperationId: "currentPreferences",
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Tags: []string{"Preferences"},
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Description: "Get preferences for requester. This combines the user preferences with the team and global defaults",
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Parameters: []*spec3.Parameter{
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{
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ParameterProps: spec3.ParameterProps{
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Name: "namespace",
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In: "path",
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Required: true,
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Example: "default",
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Description: "workspace",
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Schema: spec.StringProperty(),
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},
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// Allow getting theme+language from accept
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},
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},
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Responses: &spec3.Responses{
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ResponsesProps: spec3.ResponsesProps{
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StatusCodeResponses: map[int]*spec3.Response{
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200: {
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ResponseProps: spec3.ResponseProps{
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Content: map[string]*spec3.MediaType{
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"application/json": {
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MediaTypeProps: spec3.MediaTypeProps{
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Schema: &schema,
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},
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},
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},
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},
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},
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},
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},
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},
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},
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},
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},
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Handler: s.Current,
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},
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},
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}
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}
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func (s *calculator) Current(w http.ResponseWriter, r *http.Request) {
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ctx := r.Context()
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user, err := identity.GetRequester(ctx)
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if err != nil {
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errhttp.Write(ctx, err, w)
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return
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}
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ns := user.GetNamespace() // namespace not in context!
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list, err := s.sql.ListPreferences(ctx, ns, user, false)
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if err != nil {
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errhttp.Write(ctx, err, w)
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return
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}
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p, err := merge(s.defaults, list.Items)
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if err != nil {
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errhttp.Write(ctx, err, w)
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return
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}
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p.Namespace = ns
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w.Header().Set("Content-Type", "application/json")
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_ = json.NewEncoder(w).Encode(p)
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}
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// items should be in ascending order of importance
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func merge(defaults preferences.PreferencesSpec, items []preferences.Preferences) (*preferences.Preferences, error) {
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p := &preferences.Preferences{
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TypeMeta: preferences.PreferencesResourceInfo.TypeMeta(),
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ObjectMeta: v1.ObjectMeta{
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CreationTimestamp: v1.Now(),
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},
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Spec: defaults,
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}
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// Iterate in reverse order (least relevant to most relevant)
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for _, v := range items {
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if err := mergo.Merge(&p.Spec, &v.Spec, mergo.WithOverride); err != nil {
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return nil, err
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}
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}
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return p, nil
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}
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