package codeartifact

import (
	"fmt"
	"log"
	"strings"
	"time"

	"github.com/aws/aws-sdk-go/aws"
	"github.com/aws/aws-sdk-go/aws/arn"
	"github.com/aws/aws-sdk-go/service/codeartifact"
	"github.com/hashicorp/aws-sdk-go-base/v2/awsv1shim/v2/tfawserr"
	"github.com/hashicorp/terraform-plugin-sdk/v2/helper/schema"
	"github.com/hashicorp/terraform-provider-aws/internal/conns"
	"github.com/hashicorp/terraform-provider-aws/internal/create"
	tftags "github.com/hashicorp/terraform-provider-aws/internal/tags"
	"github.com/hashicorp/terraform-provider-aws/internal/verify"
	"github.com/hashicorp/terraform-provider-aws/names"
)

func ResourceDomain() *schema.Resource {
	return &schema.Resource{
		Create: resourceDomainCreate,
		Read:   resourceDomainRead,
		Delete: resourceDomainDelete,
		Update: resourceDomainUpdate,
		Importer: &schema.ResourceImporter{
			State: schema.ImportStatePassthrough,
		},

		Schema: map[string]*schema.Schema{
			"arn": {
				Type:     schema.TypeString,
				Computed: true,
			},
			"domain": {
				Type:     schema.TypeString,
				Required: true,
				ForceNew: true,
			},
			"encryption_key": {
				Type:         schema.TypeString,
				Optional:     true,
				Computed:     true,
				ForceNew:     true,
				ValidateFunc: verify.ValidARN,
			},
			"owner": {
				Type:     schema.TypeString,
				Computed: true,
			},
			"created_time": {
				Type:     schema.TypeString,
				Computed: true,
			},
			"asset_size_bytes": {
				Type:     schema.TypeInt,
				Computed: true,
			},
			"repository_count": {
				Type:     schema.TypeInt,
				Computed: true,
			},
			"tags":     tftags.TagsSchema(),
			"tags_all": tftags.TagsSchemaComputed(),
		},

		CustomizeDiff: verify.SetTagsDiff,
	}
}

func resourceDomainCreate(d *schema.ResourceData, meta interface{}) error {
	conn := meta.(*conns.AWSClient).CodeArtifactConn()
	defaultTagsConfig := meta.(*conns.AWSClient).DefaultTagsConfig
	tags := defaultTagsConfig.MergeTags(tftags.New(d.Get("tags").(map[string]interface{})))
	log.Print("[DEBUG] Creating CodeArtifact Domain")

	params := &codeartifact.CreateDomainInput{
		Domain: aws.String(d.Get("domain").(string)),
		Tags:   Tags(tags.IgnoreAWS()),
	}

	if v, ok := d.GetOk("encryption_key"); ok {
		params.EncryptionKey = aws.String(v.(string))
	}

	domain, err := conn.CreateDomain(params)
	if err != nil {
		return fmt.Errorf("error creating CodeArtifact Domain: %w", err)
	}

	d.SetId(aws.StringValue(domain.Domain.Arn))

	return resourceDomainRead(d, meta)
}

func resourceDomainRead(d *schema.ResourceData, meta interface{}) error {
	conn := meta.(*conns.AWSClient).CodeArtifactConn()
	defaultTagsConfig := meta.(*conns.AWSClient).DefaultTagsConfig
	ignoreTagsConfig := meta.(*conns.AWSClient).IgnoreTagsConfig

	log.Printf("[DEBUG] Reading CodeArtifact Domain: %s", d.Id())

	domainOwner, domainName, err := DecodeDomainID(d.Id())
	if err != nil {
		return err
	}

	sm, err := conn.DescribeDomain(&codeartifact.DescribeDomainInput{
		Domain:      aws.String(domainName),
		DomainOwner: aws.String(domainOwner),
	})
	if !d.IsNewResource() && tfawserr.ErrCodeEquals(err, codeartifact.ErrCodeResourceNotFoundException) {
		create.LogNotFoundRemoveState(names.CodeArtifact, create.ErrActionReading, ResNameDomain, d.Id())
		d.SetId("")
		return nil
	}

	if err != nil {
		return create.Error(names.CodeArtifact, create.ErrActionReading, ResNameDomain, d.Id(), err)
	}

	arn := aws.StringValue(sm.Domain.Arn)
	d.Set("domain", sm.Domain.Name)
	d.Set("arn", arn)
	d.Set("encryption_key", sm.Domain.EncryptionKey)
	d.Set("owner", sm.Domain.Owner)
	d.Set("asset_size_bytes", sm.Domain.AssetSizeBytes)
	d.Set("repository_count", sm.Domain.RepositoryCount)
	d.Set("created_time", sm.Domain.CreatedTime.Format(time.RFC3339))

	tags, err := ListTags(conn, arn)

	if err != nil {
		return fmt.Errorf("error listing tags for CodeArtifact Domain (%s): %w", arn, err)
	}

	tags = tags.IgnoreAWS().IgnoreConfig(ignoreTagsConfig)

	//lintignore:AWSR002
	if err := d.Set("tags", tags.RemoveDefaultConfig(defaultTagsConfig).Map()); err != nil {
		return fmt.Errorf("error setting tags: %w", err)
	}

	if err := d.Set("tags_all", tags.Map()); err != nil {
		return fmt.Errorf("error setting tags_all: %w", err)
	}

	return nil
}

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

	if d.HasChange("tags_all") {
		o, n := d.GetChange("tags_all")
		if err := UpdateTags(conn, d.Get("arn").(string), o, n); err != nil {
			return fmt.Errorf("error updating CodeArtifact Domain (%s) tags: %w", d.Id(), err)
		}
	}

	return resourceDomainRead(d, meta)
}

func resourceDomainDelete(d *schema.ResourceData, meta interface{}) error {
	conn := meta.(*conns.AWSClient).CodeArtifactConn()
	log.Printf("[DEBUG] Deleting CodeArtifact Domain: %s", d.Id())

	domainOwner, domainName, err := DecodeDomainID(d.Id())
	if err != nil {
		return err
	}

	input := &codeartifact.DeleteDomainInput{
		Domain:      aws.String(domainName),
		DomainOwner: aws.String(domainOwner),
	}

	_, err = conn.DeleteDomain(input)

	if tfawserr.ErrCodeEquals(err, codeartifact.ErrCodeResourceNotFoundException) {
		return nil
	}

	if err != nil {
		return fmt.Errorf("error deleting CodeArtifact Domain (%s): %w", d.Id(), err)
	}

	return nil
}

func DecodeDomainID(id string) (string, string, error) {
	repoArn, err := arn.Parse(id)
	if err != nil {
		return "", "", err
	}

	domainName := strings.TrimPrefix(repoArn.Resource, "domain/")
	return repoArn.AccountID, domainName, nil
}
