/*
   Copyright The containerd Authors.

   Licensed under the Apache License, Version 2.0 (the "License");
   you may not use this file except in compliance with the License.
   You may obtain a copy of the License at

       http://www.apache.org/licenses/LICENSE-2.0

   Unless required by applicable law or agreed to in writing, software
   distributed under the License is distributed on an "AS IS" BASIS,
   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   See the License for the specific language governing permissions and
   limitations under the License.
*/

package cio

import (
	"fmt"
	"net/url"
	"runtime"
	"testing"

	"github.com/stretchr/testify/assert"
	"github.com/stretchr/testify/require"
)

var (
	prefix    string
	urlPrefix string
)

func init() {
	if runtime.GOOS == "windows" {
		prefix = "C:"
		urlPrefix = "/C:"
	}
}

func TestBinaryIOArgs(t *testing.T) {
	res, err := BinaryIO(prefix+"/file.bin", map[string]string{"id": "1"})("")
	require.NoError(t, err)
	expected := fmt.Sprintf("binary://%s/file.bin?id=1", urlPrefix)
	assert.Equal(t, expected, res.Config().Stdout)
	assert.Equal(t, expected, res.Config().Stderr)
}

func TestBinaryIOAbsolutePath(t *testing.T) {
	res, err := BinaryIO(prefix+"/full/path/bin", nil)("!")
	require.NoError(t, err)

	// Test parse back
	parsed, err := url.Parse(res.Config().Stdout)
	require.NoError(t, err)
	assert.Equal(t, "binary", parsed.Scheme)
	assert.Equal(t, urlPrefix+"/full/path/bin", parsed.Path)
}

func TestBinaryIOFailOnRelativePath(t *testing.T) {
	_, err := BinaryIO("./bin", nil)("!")
	assert.Error(t, err, "absolute path needed")
}

func TestLogFileAbsolutePath(t *testing.T) {
	res, err := LogFile(prefix + "/full/path/file.txt")("!")
	require.NoError(t, err)
	expected := fmt.Sprintf("file://%s/full/path/file.txt", urlPrefix)
	assert.Equal(t, expected, res.Config().Stdout)
	assert.Equal(t, expected, res.Config().Stderr)

	// Test parse back
	parsed, err := url.Parse(res.Config().Stdout)
	assert.NoError(t, err)
	assert.Equal(t, "file", parsed.Scheme)
	assert.Equal(t, urlPrefix+"/full/path/file.txt", parsed.Path)
}

func TestLogFileFailOnRelativePath(t *testing.T) {
	_, err := LogFile("./file.txt")("!")
	assert.Error(t, err, "absolute path needed")
}

func TestLogURIGenerator(t *testing.T) {
	for _, tc := range []struct {
		scheme   string
		path     string
		args     map[string]string
		expected string
		err      string
	}{
		{
			scheme:   "fifo",
			path:     "/full/path/pipe.fifo",
			expected: "fifo:///full/path/pipe.fifo",
		},
		{
			scheme: "file",
			path:   "/full/path/file.txt",
			args: map[string]string{
				"maxSize": "100MB",
			},
			expected: "file:///full/path/file.txt?maxSize=100MB",
		},
		{
			scheme: "binary",
			path:   "/full/path/bin",
			args: map[string]string{
				"id": "testing",
			},
			expected: "binary:///full/path/bin?id=testing",
		},
		{
			scheme: "unknown",
			path:   "nowhere",
			err:    "absolute path needed",
		},
	} {
		uri, err := LogURIGenerator(tc.scheme, tc.path, tc.args)
		if err != nil {
			assert.Error(t, err, tc.err)
			continue
		}
		assert.Equal(t, tc.expected, uri.String())
	}
}