package client

import (
	"context"
	"fmt"
	"io"
	"net/http"
	"testing"

	cerrdefs "github.com/containerd/errdefs"
	"github.com/moby/moby/api/types/registry"
	"gotest.tools/v3/assert"
	is "gotest.tools/v3/assert/cmp"
)

func TestImageCreateError(t *testing.T) {
	client, err := New(WithMockClient(errorMock(http.StatusInternalServerError, "Server error")))
	assert.NilError(t, err)
	_, err = client.ImageCreate(context.Background(), "reference", ImageCreateOptions{})
	assert.Check(t, is.ErrorType(err, cerrdefs.IsInternal))
}

func TestImageCreate(t *testing.T) {
	const (
		expectedURL          = "/images/create"
		expectedImage        = "docker.io/test/my_image"
		expectedTag          = "sha256:ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff"
		specifiedReference   = "test/my_image:latest@" + expectedTag
		expectedRegistryAuth = "eyJodHRwczovL2luZGV4LmRvY2tlci5pby92MS8iOnsiYXV0aCI6ImRHOTBid289IiwiZW1haWwiOiJqb2huQGRvZS5jb20ifX0="
	)

	client, err := New(WithMockClient(func(req *http.Request) (*http.Response, error) {
		if err := assertRequest(req, http.MethodPost, expectedURL); err != nil {
			return nil, err
		}
		registryAuth := req.Header.Get(registry.AuthHeader)
		if registryAuth != expectedRegistryAuth {
			return nil, fmt.Errorf("%s header not properly set in the request. Expected '%s', got %s", registry.AuthHeader, expectedRegistryAuth, registryAuth)
		}

		query := req.URL.Query()
		fromImage := query.Get("fromImage")
		if fromImage != expectedImage {
			return nil, fmt.Errorf("fromImage not set in URL query properly. Expected '%s', got %s", expectedImage, fromImage)
		}

		tag := query.Get("tag")
		if tag != expectedTag {
			return nil, fmt.Errorf("tag not set in URL query properly. Expected '%s', got %s", expectedTag, tag)
		}

		return mockResponse(http.StatusOK, nil, "body")(req)
	}))
	assert.NilError(t, err)

	createResult, err := client.ImageCreate(context.Background(), specifiedReference, ImageCreateOptions{
		RegistryAuth: expectedRegistryAuth,
	})
	assert.NilError(t, err)
	response, err := io.ReadAll(createResult.Body)
	assert.NilError(t, err)
	err = createResult.Body.Close()
	assert.NilError(t, err)
	assert.Check(t, is.Equal(string(response), "body"))
}