package task

import (
	"context"
	"time"

	"github.com/go-logr/logr"
	"sigs.k8s.io/controller-runtime/pkg/client"

	"github.com/tidbcloud/infra-provider/regional-server/api/v1alpha1"
	"github.com/tidbcloud/infra-provider/regional-server/pkg/config"
	"github.com/tidbcloud/infra-provider/regional-server/pkg/controllers"
	"github.com/tidbcloud/infra-provider/regional-server/pkg/deploy"
	"github.com/tidbcloud/infra-provider/regional-server/pkg/namer"
	"github.com/tidbcloud/infra-provider/regional-server/pkg/repository"
)

type Context struct {
	Local                 client.Client
	Logger                logr.Logger
	BeginAt               *time.Time
	Namer                 *namer.Namer
	DataPlane             *v1alpha1.DataPlane
	VPC                   *v1alpha1.VPC
	PrivateLinkEndpoint   *v1alpha1.PrivateLinkEndpoint
	PrivateLinkEndpointRW repository.PrivateLinkEndpointReaderWriter
	Config                config.RootConfig
}

var _ deploy.Task = &BaseTask{}

func (c *Context) Default() (*Context, error) {
	// Use vpc name and namespace as the network name and namespace
	// to ensure compatibility
	c.Namer = namer.NewNamer().
		LegacyWithNetworkName(c.PrivateLinkEndpoint.Name).
		LegacyWithNetworkNamespace(c.PrivateLinkEndpoint.Namespace)

	return c, nil
}

func (c *Context) ProviderConfigName() string {
	if c.VPC.Spec.AccountRef != nil {
		return c.VPC.Spec.AccountRef.ProviderConfigName
	}
	return ""
}

func (c *Context) GetSubscriptionID() string {
	if c.VPC.Spec.AccountRef != nil {
		return c.VPC.Spec.AccountRef.AccountID
	}
	return ""
}

func (c *Context) RoleARN() string {
	if c.VPC.Spec.AccountRef != nil {
		return "arn:aws:iam::" + c.VPC.Spec.AccountRef.AccountID + ":role/" + c.VPC.Spec.AccountRef.Role
	}
	return ""
}

type BaseTask struct {
	*Context
}

func (t *BaseTask) Name() string {
	return ""
}

func (t *BaseTask) Category() deploy.TaskCategory {
	return deploy.ClusterTask
}

func (t *BaseTask) Create(ctx context.Context) deploy.Result {
	return deploy.Done()
}

func (t *BaseTask) PostCreate(ctx context.Context) deploy.Result {
	return deploy.Done()
}

func (t *BaseTask) Delete(ctx context.Context) deploy.Result {
	return deploy.Done()
}

func (t *BaseTask) PostDelete(ctx context.Context) deploy.Result {
	return deploy.Done()
}

func (t *BaseTask) MetricsStartTime() *time.Time {
	return t.BeginAt
}

func (t *BaseTask) EffectiveCloudTags(provider string) map[string]string {
	var dataPlaneTags map[string]string
	if t.DataPlane != nil {
		dataPlaneTags = t.DataPlane.Spec.CloudTags
	}
	return controllers.EffectiveCloudTags(
		provider,
		t.Config.AdditionalCloudTags,
		t.VPC.Labels,
		t.PrivateLinkEndpoint.Spec.Tags,
		dataPlaneTags,
	)
}

func (t *BaseTask) EndpointName() string {
	return controllers.UniqueIdentifier(t.PrivateLinkEndpoint.ObjectMeta, namer.WithPrefix(t.Config.ResourceNamePrefix))
}