data_source_datadog_synthetics_global_variable.go

package datadog

import (
	"context"
	"regexp"

	"github.com/DataDog/datadog-api-client-go/api/v1/datadog"

	"github.com/Telemetron/terraform-provider-datadog/v3/datadog/internal/utils"

	"github.com/hashicorp/terraform-plugin-sdk/v2/diag"
	"github.com/hashicorp/terraform-plugin-sdk/v2/helper/schema"
	"github.com/hashicorp/terraform-plugin-sdk/v2/helper/validation"
)

func dataSourceDatadogSyntheticsGlobalVariable() *schema.Resource {
	return &schema.Resource{
		Description: "Use this data source to retrieve a Datadog Synthetics global variable (to be used in Synthetics tests).",
		ReadContext: dataSourceDatadogSyntheticsGlobalVariableRead,

		Schema: map[string]*schema.Schema{
			"name": {
				Description:  "The synthetics global variable name to search for. Must only match one global variable.",
				Type:         schema.TypeString,
				Required:     true,
				ValidateFunc: validation.StringMatch(regexp.MustCompile(`^[A-Z][A-Z0-9_]+[A-Z0-9]$`), "must be all uppercase with underscores"),
			},
			"tags": {
				Description: "A list of tags assigned to the Synthetics global variable.",
				Type:        schema.TypeList,
				Elem:        &schema.Schema{Type: schema.TypeString},
				Computed:    true,
			},
		},
	}
}

func dataSourceDatadogSyntheticsGlobalVariableRead(ctx context.Context, d *schema.ResourceData, meta interface{}) diag.Diagnostics {

	providerConf := meta.(*ProviderConfiguration)
	datadogClientV1 := providerConf.DatadogClientV1
	authV1 := providerConf.AuthV1

	globalVariables, httpresp, err := datadogClientV1.SyntheticsApi.ListGlobalVariables(authV1)
	if err != nil {
		return utils.TranslateClientErrorDiag(err, httpresp, "error getting synthetics global variables")
	}
	if err := utils.CheckForUnparsed(globalVariables); err != nil {
		return diag.FromErr(err)
	}

	searchedName := d.Get("name").(string)
	var matchedGlobalVariables []datadog.SyntheticsGlobalVariable

	for _, globalVariable := range *globalVariables.Variables {
		if globalVariable.Name == searchedName {
			matchedGlobalVariables = append(matchedGlobalVariables, globalVariable)
		}
	}

	if len(matchedGlobalVariables) == 0 {
		return diag.Errorf("Couldn't find synthetics global variable named %s", searchedName)
	} else if len(matchedGlobalVariables) > 1 {
		return diag.Errorf("Found multiple synthetics global variables named %s", searchedName)
	}

	d.SetId(matchedGlobalVariables[0].GetId())
	d.Set("tags", matchedGlobalVariables[0].GetTags())

	return nil
}