feat: implement template command (#169)

clients/template/template.go

@@ -0,0 +1,119 @@
+package template
+
+import (
+	"context"
+	"fmt"
+
+	"github.com/influxdata/influx-cli/v2/api"
+	"github.com/influxdata/influx-cli/v2/clients"
+	"github.com/influxdata/influx-cli/v2/pkg/template"
+)
+
+type Client struct {
+	clients.CLI
+	api.TemplatesApi
+	api.OrganizationsApi
+}
+
+type SummarizeParams struct {
+	OrgId   string
+	OrgName string
+
+	Sources []template.Source
+
+	RenderTableColors  bool
+	RenderTableBorders bool
+}
+
+func (c Client) Summarize(ctx context.Context, params *SummarizeParams) error {
+	if params.OrgId == "" && params.OrgName == "" && c.ActiveConfig.Org == "" {
+		return clients.ErrMustSpecifyOrg
+	}
+	orgID := params.OrgId
+	if orgID == "" {
+		orgName := params.OrgName
+		if orgName == "" {
+			orgName = c.ActiveConfig.Org
+		}
+		orgs, err := c.GetOrgs(ctx).Org(orgName).Execute()
+		if err != nil {
+			return fmt.Errorf("failed to get ID for org %q: %w", orgName, err)
+		}
+		if len(orgs.GetOrgs()) == 0 {
+			return fmt.Errorf("no orgs found with name %q: %w", orgName, err)
+		}
+		orgID = orgs.GetOrgs()[0].GetId()
+	}
+
+	templates, err := template.ReadSources(ctx, params.Sources)
+	if err != nil {
+		return err
+	}
+
+	// Execute a dry-run to make the server summarize the template(s).
+	req := api.TemplateApply{
+		DryRun:    true,
+		OrgID:     orgID,
+		Templates: templates,
+	}
+	res, err := c.ApplyTemplate(ctx).TemplateApply(req).Execute()
+	if err != nil {
+		return fmt.Errorf("failed to summarize template: %w", err)
+	}
+
+	if c.PrintAsJSON {
+		return c.PrintJSON(res.Summary)
+	}
+	return template.PrintSummary(res.Summary, c.StdIO, params.RenderTableColors, params.RenderTableBorders)
+}
+
+type ValidateParams struct {
+	OrgId   string
+	OrgName string
+
+	Sources []template.Source
+}
+
+func (c Client) Validate(ctx context.Context, params *ValidateParams) error {
+	if params.OrgId == "" && params.OrgName == "" && c.ActiveConfig.Org == "" {
+		return clients.ErrMustSpecifyOrg
+	}
+	orgID := params.OrgId
+	if orgID == "" {
+		orgName := params.OrgName
+		if orgName == "" {
+			orgName = c.ActiveConfig.Org
+		}
+		orgs, err := c.GetOrgs(ctx).Org(orgName).Execute()
+		if err != nil {
+			return fmt.Errorf("failed to get ID for org %q: %w", orgName, err)
+		}
+		if len(orgs.GetOrgs()) == 0 {
+			return fmt.Errorf("no orgs found with name %q: %w", orgName, err)
+		}
+		orgID = orgs.GetOrgs()[0].GetId()
+	}
+
+	templates, err := template.ReadSources(ctx, params.Sources)
+	if err != nil {
+		return err
+	}
+
+	// Execute a dry-run to make the server summarize the template(s).
+	req := api.TemplateApply{
+		DryRun:    true,
+		OrgID:     orgID,
+		Templates: templates,
+	}
+	_, err = c.ApplyTemplate(ctx).TemplateApply(req).Execute()
+	if err == nil {
+		return nil
+	}
+
+	if apiErr, ok := err.(api.GenericOpenAPIError); ok {
+		if summary, ok := apiErr.Model().(*api.TemplateSummary); ok {
+			return fmt.Errorf("template failed validation:\n\t%s", summary)
+		}
+	}
+	return fmt.Errorf("failed to validate template: %w", err)
+}