package client

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

	cerrdefs "github.com/containerd/errdefs"
	"github.com/moby/moby/api/types/image"
	ocispec "github.com/opencontainers/image-spec/specs-go/v1"
	"gotest.tools/v3/assert"
	is "gotest.tools/v3/assert/cmp"
)

func TestImageRemoveError(t *testing.T) {
	client, err := New(WithMockClient(errorMock(http.StatusInternalServerError, "Server error")))
	assert.NilError(t, err)

	_, err = client.ImageRemove(context.Background(), "image_id", ImageRemoveOptions{})
	assert.Check(t, is.ErrorType(err, cerrdefs.IsInternal))
}

func TestImageRemoveImageNotFound(t *testing.T) {
	client, err := New(WithMockClient(errorMock(http.StatusNotFound, "no such image: unknown")))
	assert.NilError(t, err)

	_, err = client.ImageRemove(context.Background(), "unknown", ImageRemoveOptions{})
	assert.Check(t, is.ErrorContains(err, "no such image: unknown"))
	assert.Check(t, is.ErrorType(err, cerrdefs.IsNotFound))
}

func TestImageRemove(t *testing.T) {
	const expectedURL = "/images/image_id"
	removeCases := []struct {
		force               bool
		pruneChildren       bool
		platform            *ocispec.Platform
		expectedQueryParams map[string]string
	}{
		{
			force:         false,
			pruneChildren: false,
			expectedQueryParams: map[string]string{
				"force":   "",
				"noprune": "1",
			},
		},
		{
			force:         true,
			pruneChildren: true,
			expectedQueryParams: map[string]string{
				"force":   "1",
				"noprune": "",
			},
		},
		{
			platform: &ocispec.Platform{
				Architecture: "amd64",
				OS:           "linux",
			},
			expectedQueryParams: map[string]string{
				"platforms": `{"architecture":"amd64","os":"linux"}`,
			},
		},
	}
	for _, removeCase := range removeCases {
		client, err := New(WithMockClient(func(req *http.Request) (*http.Response, error) {
			if err := assertRequest(req, http.MethodDelete, expectedURL); err != nil {
				return nil, err
			}
			query := req.URL.Query()
			for key, expected := range removeCase.expectedQueryParams {
				actual := query.Get(key)
				if actual != expected {
					return nil, fmt.Errorf("%s not set in URL query properly. Expected '%s', got %s", key, expected, actual)
				}
			}
			return mockJSONResponse(http.StatusOK, nil, []image.DeleteResponse{
				{Untagged: "image_id1"},
				{Deleted: "image_id"},
			})(req)
		}))
		assert.NilError(t, err)

		opts := ImageRemoveOptions{
			Force:         removeCase.force,
			PruneChildren: removeCase.pruneChildren,
		}
		if removeCase.platform != nil {
			opts.Platforms = []ocispec.Platform{*removeCase.platform}
		}

		res, err := client.ImageRemove(context.Background(), "image_id", opts)
		assert.NilError(t, err)
		assert.Check(t, is.Len(res.Items, 2))
	}
}