// Copyright 2024 Matthew Rich <matthewrich.conf@gmail.com>. All rights reserved.

package resource

import (
	"context"
	"decl/tests/mocks"
_ "encoding/json"
	"fmt"
	"github.com/docker/docker/api/types"
	"github.com/docker/docker/api/types/image"
	"github.com/stretchr/testify/assert"
	"io"
_ "net/http"
_ "net/http/httptest"
	"net/url"
_ "os"
	"strings"
	"testing"
)

func TestNewContainerImageResource(t *testing.T) {
	c := NewContainerImage(&mocks.MockContainerClient{})
	assert.NotNil(t, c)
}

func TestContainerImageURI(t *testing.T) {
	case0URI := URIFromContainerImageName("foo")
	assert.Equal(t, "container-image:///foo", case0URI)
	case1URI := URIFromContainerImageName("foo:bar")
	assert.Equal(t, "container-image:///foo:bar", case1URI)
	case2URI := URIFromContainerImageName("quuz/foo:bar")
	assert.Equal(t, "container-image:///quuz/foo:bar", case2URI)
	case3URI := URIFromContainerImageName("myhost/quuz/foo:bar")
	assert.Equal(t, "container-image://myhost/quuz/foo:bar", case3URI)
}

func TestLoadFromContainerImageURI(t *testing.T) {
	testURI := URIFromContainerImageName("myhost/quuz/foo:bar")
	newResource, resourceErr := ResourceTypes.New(testURI)
	assert.Nil(t, resourceErr)
	assert.NotNil(t, newResource)
	assert.IsType(t, &ContainerImage{}, newResource)
	assert.Equal(t, "myhost/quuz/foo:bar", newResource.(*ContainerImage).Name)
	assert.Equal(t, testURI, newResource.URI())
}

func TestContainerImageNameFromURI(t *testing.T) {
	case0u,_ := url.Parse("container-image:///foo")
	case0Image := ContainerImageNameFromURI(case0u)
	assert.Equal(t, "foo", case0Image)

	case1u,_ := url.Parse("container-image:///foo:bar")
	case1Image := ContainerImageNameFromURI(case1u)
	assert.Equal(t, "foo:bar", case1Image)

	case2u,_ := url.Parse("container-image:///quuz/foo:bar")
	case2Image := ContainerImageNameFromURI(case2u)
	assert.Equal(t, "quuz/foo:bar", case2Image)

	case3u,_ := url.Parse("container-image://myhost/quuz/foo:bar")
	case3Image := ContainerImageNameFromURI(case3u)
	assert.Equal(t, "myhost/quuz/foo:bar", case3Image)
}

func TestReadContainerImage(t *testing.T) {
	output := io.NopCloser(strings.NewReader("testdata"))
	ctx := context.Background()
	decl := `
  name: "alpine:latest"
  state: present
`
	m := &mocks.MockContainerClient{
		InjectImagePull: func(ctx context.Context, refStr string, options image.PullOptions) (io.ReadCloser, error) {
			return output, nil
		},
		InjectImageRemove: func(ctx context.Context, imageID string, options image.RemoveOptions) ([]image.DeleteResponse, error) {
			return nil, nil
		},
		InjectImageInspectWithRaw: func(ctx context.Context, imageID string) (types.ImageInspect, []byte, error) {
			return types.ImageInspect{
					ID:    "sha256:123456789abc",
				}, nil, nil
		},
	}

	c := NewContainerImage(m)
	assert.NotNil(t, c)

	e := c.LoadDecl(decl)
	assert.Equal(t, nil, e)
	assert.Equal(t, "alpine:latest", c.Name)

	resourceYaml, readContainerErr := c.Read(ctx)
	assert.Equal(t, nil, readContainerErr)
	assert.Greater(t, len(resourceYaml), 0)
}

func TestCreateContainerImage(t *testing.T) {
	m := &mocks.MockContainerClient{
		InjectImageBuild: func(ctx context.Context, buildContext io.Reader, options types.ImageBuildOptions) (types.ImageBuildResponse, error) {
			return types.ImageBuildResponse{Body: io.NopCloser(strings.NewReader("image built")) }, nil
		},
	}

	decl := fmt.Sprintf(`
  name: "testcontainerimage"
  image: "alpine"
  contextref: file://%s
`, "")
	c := NewContainerImage(m)
	stater := c.StateMachine()

	e := c.LoadDecl(decl)
	assert.Equal(t, nil, e)
	assert.Equal(t, "testcontainerimage", c.Name)

	assert.Nil(t, stater.Trigger("create"))
}