package backup

import (
	"fmt"

	"github.com/aws/aws-sdk-go/aws"
	"github.com/aws/aws-sdk-go/service/backup"
	"github.com/hashicorp/terraform-plugin-sdk/v2/helper/schema"
	"github.com/hashicorp/terraform-provider-aws/internal/conns"
	"github.com/hashicorp/terraform-provider-aws/internal/flex"
)

func ResourceRegionSettings() *schema.Resource {
	return &schema.Resource{
		Create: resourceRegionSettingsUpdate,
		Update: resourceRegionSettingsUpdate,
		Read:   resourceRegionSettingsRead,
		Delete: schema.Noop,
		Importer: &schema.ResourceImporter{
			State: schema.ImportStatePassthrough,
		},

		Schema: map[string]*schema.Schema{
			"resource_type_management_preference": {
				Type:     schema.TypeMap,
				Optional: true,
				Computed: true,
				Elem:     &schema.Schema{Type: schema.TypeBool},
			},
			"resource_type_opt_in_preference": {
				Type:     schema.TypeMap,
				Required: true,
				Elem:     &schema.Schema{Type: schema.TypeBool},
			},
		},
	}
}

func resourceRegionSettingsUpdate(d *schema.ResourceData, meta interface{}) error {
	conn := meta.(*conns.AWSClient).BackupConn

	input := &backup.UpdateRegionSettingsInput{}

	if v, ok := d.GetOk("resource_type_management_preference"); ok && len(v.(map[string]interface{})) > 0 {
		input.ResourceTypeManagementPreference = flex.ExpandBoolMap(v.(map[string]interface{}))
	}

	if v, ok := d.GetOk("resource_type_opt_in_preference"); ok && len(v.(map[string]interface{})) > 0 {
		input.ResourceTypeOptInPreference = flex.ExpandBoolMap(v.(map[string]interface{}))
	}

	_, err := conn.UpdateRegionSettings(input)

	if err != nil {
		return fmt.Errorf("error updating Backup Region Settings (%s): %w", d.Id(), err)
	}

	d.SetId(meta.(*conns.AWSClient).Region)

	return resourceRegionSettingsRead(d, meta)
}

func resourceRegionSettingsRead(d *schema.ResourceData, meta interface{}) error {
	conn := meta.(*conns.AWSClient).BackupConn

	output, err := conn.DescribeRegionSettings(&backup.DescribeRegionSettingsInput{})

	if err != nil {
		return fmt.Errorf("error reading Backup Region Settings (%s): %w", d.Id(), err)
	}

	d.Set("resource_type_opt_in_preference", aws.BoolValueMap(output.ResourceTypeOptInPreference))
	d.Set("resource_type_management_preference", aws.BoolValueMap(output.ResourceTypeManagementPreference))

	return nil
}
