// Copyright 2019 The Hugo Authors. All rights reserved.
//
// 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 commands

import (
	"path/filepath"
	"testing"

	"github.com/gohugoio/hugo/hugofs"
	"github.com/spf13/viper"
	"github.com/stretchr/testify/assert"
	"github.com/stretchr/testify/require"
)

// Issue #1133
func TestNewContentPathSectionWithForwardSlashes(t *testing.T) {
	p, s := newContentPathSection(nil, "/post/new.md")
	assert.Equal(t, filepath.FromSlash("/post/new.md"), p)
	assert.Equal(t, "post", s)
}

func checkNewSiteInited(fs *hugofs.Fs, basepath string, t *testing.T) {

	paths := []string{
		filepath.Join(basepath, "layouts"),
		filepath.Join(basepath, "content"),
		filepath.Join(basepath, "archetypes"),
		filepath.Join(basepath, "static"),
		filepath.Join(basepath, "data"),
		filepath.Join(basepath, "config.toml"),
	}

	for _, path := range paths {
		_, err := fs.Source.Stat(path)
		require.NoError(t, err)
	}
}

func TestDoNewSite(t *testing.T) {
	n := newNewSiteCmd()
	basepath := filepath.Join("base", "blog")
	_, fs := newTestCfg()

	require.NoError(t, n.doNewSite(fs, basepath, false))

	checkNewSiteInited(fs, basepath, t)
}

func TestDoNewSite_noerror_base_exists_but_empty(t *testing.T) {
	basepath := filepath.Join("base", "blog")
	_, fs := newTestCfg()
	n := newNewSiteCmd()

	require.NoError(t, fs.Source.MkdirAll(basepath, 0777))

	require.NoError(t, n.doNewSite(fs, basepath, false))
}

func TestDoNewSite_error_base_exists(t *testing.T) {
	basepath := filepath.Join("base", "blog")
	_, fs := newTestCfg()
	n := newNewSiteCmd()

	require.NoError(t, fs.Source.MkdirAll(basepath, 0777))
	_, err := fs.Source.Create(filepath.Join(basepath, "foo"))
	require.NoError(t, err)
	// Since the directory already exists and isn't empty, expect an error
	require.Error(t, n.doNewSite(fs, basepath, false))

}

func TestDoNewSite_force_empty_dir(t *testing.T) {
	basepath := filepath.Join("base", "blog")
	_, fs := newTestCfg()
	n := newNewSiteCmd()

	require.NoError(t, fs.Source.MkdirAll(basepath, 0777))

	require.NoError(t, n.doNewSite(fs, basepath, true))

	checkNewSiteInited(fs, basepath, t)
}

func TestDoNewSite_error_force_dir_inside_exists(t *testing.T) {
	basepath := filepath.Join("base", "blog")
	_, fs := newTestCfg()
	n := newNewSiteCmd()

	contentPath := filepath.Join(basepath, "content")

	require.NoError(t, fs.Source.MkdirAll(contentPath, 0777))
	require.Error(t, n.doNewSite(fs, basepath, true))
}

func TestDoNewSite_error_force_config_inside_exists(t *testing.T) {
	basepath := filepath.Join("base", "blog")
	_, fs := newTestCfg()
	n := newNewSiteCmd()

	configPath := filepath.Join(basepath, "config.toml")
	require.NoError(t, fs.Source.MkdirAll(basepath, 0777))
	_, err := fs.Source.Create(configPath)
	require.NoError(t, err)

	require.Error(t, n.doNewSite(fs, basepath, true))
}

func newTestCfg() (*viper.Viper, *hugofs.Fs) {

	v := viper.New()
	fs := hugofs.NewMem(v)

	v.SetFs(fs.Source)

	return v, fs

}