// Copyright 2015 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 (
	"encoding/json"
	"testing"
	"time"

	qt "github.com/frankban/quicktest"
)

func TestParseJekyllFilename(t *testing.T) {
	c := qt.New(t)
	filenameArray := []string{
		"2015-01-02-test.md",
		"2012-03-15-中文.markup",
	}

	expectResult := []struct {
		postDate time.Time
		postName string
	}{
		{time.Date(2015, time.January, 2, 0, 0, 0, 0, time.UTC), "test"},
		{time.Date(2012, time.March, 15, 0, 0, 0, 0, time.UTC), "中文"},
	}

	for i, filename := range filenameArray {
		postDate, postName, err := parseJekyllFilename(filename)
		c.Assert(err, qt.IsNil)
		c.Assert(expectResult[i].postDate.Format("2006-01-02"), qt.Equals, postDate.Format("2006-01-02"))
		c.Assert(expectResult[i].postName, qt.Equals, postName)
	}
}

func TestConvertJekyllMetadata(t *testing.T) {
	c := qt.New(t)
	testDataList := []struct {
		metadata interface{}
		postName string
		postDate time.Time
		draft    bool
		expect   string
	}{
		{
			map[interface{}]interface{}{},
			"testPost", time.Date(2015, 10, 1, 0, 0, 0, 0, time.UTC), false,
			`{"date":"2015-10-01T00:00:00Z"}`,
		},
		{
			map[interface{}]interface{}{},
			"testPost", time.Date(2015, 10, 1, 0, 0, 0, 0, time.UTC), true,
			`{"date":"2015-10-01T00:00:00Z","draft":true}`,
		},
		{
			map[interface{}]interface{}{"Permalink": "/permalink.html", "layout": "post"},
			"testPost", time.Date(2015, 10, 1, 0, 0, 0, 0, time.UTC), false,
			`{"date":"2015-10-01T00:00:00Z","url":"/permalink.html"}`,
		},
		{
			map[interface{}]interface{}{"permalink": "/permalink.html"},
			"testPost", time.Date(2015, 10, 1, 0, 0, 0, 0, time.UTC), false,
			`{"date":"2015-10-01T00:00:00Z","url":"/permalink.html"}`,
		},
		{
			map[interface{}]interface{}{"category": nil, "permalink": 123},
			"testPost", time.Date(2015, 10, 1, 0, 0, 0, 0, time.UTC), false,
			`{"date":"2015-10-01T00:00:00Z"}`,
		},
		{
			map[interface{}]interface{}{"Excerpt_Separator": "sep"},
			"testPost", time.Date(2015, 10, 1, 0, 0, 0, 0, time.UTC), false,
			`{"date":"2015-10-01T00:00:00Z","excerpt_separator":"sep"}`,
		},
		{
			map[interface{}]interface{}{"category": "book", "layout": "post", "Others": "Goods", "Date": "2015-10-01 12:13:11"},
			"testPost", time.Date(2015, 10, 1, 0, 0, 0, 0, time.UTC), false,
			`{"Others":"Goods","categories":["book"],"date":"2015-10-01T12:13:11Z"}`,
		},
	}

	for _, data := range testDataList {
		result, err := convertJekyllMetaData(data.metadata, data.postName, data.postDate, data.draft)
		c.Assert(err, qt.IsNil)
		jsonResult, err := json.Marshal(result)
		c.Assert(err, qt.IsNil)
		c.Assert(string(jsonResult), qt.Equals, data.expect)
	}
}

func TestConvertJekyllContent(t *testing.T) {
	c := qt.New(t)
	testDataList := []struct {
		metadata interface{}
		content  string
		expect   string
	}{
		{
			map[interface{}]interface{}{},
			"Test content\r\n<!-- more -->\npart2 content", "Test content\n<!--more-->\npart2 content",
		},
		{
			map[interface{}]interface{}{},
			"Test content\n<!-- More -->\npart2 content", "Test content\n<!--more-->\npart2 content",
		},
		{
			map[interface{}]interface{}{"excerpt_separator": "<!--sep-->"},
			"Test content\n<!--sep-->\npart2 content",
			"---\nexcerpt_separator: <!--sep-->\n---\nTest content\n<!--more-->\npart2 content",
		},
		{map[interface{}]interface{}{}, "{% raw %}text{% endraw %}", "text"},
		{map[interface{}]interface{}{}, "{%raw%} text2 {%endraw %}", "text2"},
		{
			map[interface{}]interface{}{},
			"{% highlight go %}\nvar s int\n{% endhighlight %}",
			"{{< highlight go >}}\nvar s int\n{{< / highlight >}}",
		},
		{
			map[interface{}]interface{}{},
			"{% highlight go linenos hl_lines=\"1 2\" %}\nvar s string\nvar i int\n{% endhighlight %}",
			"{{< highlight go \"linenos=table,hl_lines=1 2\" >}}\nvar s string\nvar i int\n{{< / highlight >}}",
		},

		// Octopress image tag
		{
			map[interface{}]interface{}{},
			"{% img http://placekitten.com/890/280 %}",
			"{{< figure src=\"http://placekitten.com/890/280\" >}}",
		},
		{
			map[interface{}]interface{}{},
			"{% img left http://placekitten.com/320/250 Place Kitten #2 %}",
			"{{< figure class=\"left\" src=\"http://placekitten.com/320/250\" title=\"Place Kitten #2\" >}}",
		},
		{
			map[interface{}]interface{}{},
			"{% img right http://placekitten.com/300/500 150 250 'Place Kitten #3' %}",
			"{{< figure class=\"right\" src=\"http://placekitten.com/300/500\" width=\"150\" height=\"250\" title=\"Place Kitten #3\" >}}",
		},
		{
			map[interface{}]interface{}{},
			"{% img right http://placekitten.com/300/500 150 250 'Place Kitten #4' 'An image of a very cute kitten' %}",
			"{{< figure class=\"right\" src=\"http://placekitten.com/300/500\" width=\"150\" height=\"250\" title=\"Place Kitten #4\" alt=\"An image of a very cute kitten\" >}}",
		},
		{
			map[interface{}]interface{}{},
			"{% img http://placekitten.com/300/500 150 250 'Place Kitten #4' 'An image of a very cute kitten' %}",
			"{{< figure src=\"http://placekitten.com/300/500\" width=\"150\" height=\"250\" title=\"Place Kitten #4\" alt=\"An image of a very cute kitten\" >}}",
		},
		{
			map[interface{}]interface{}{},
			"{% img right /placekitten/300/500 'Place Kitten #4' 'An image of a very cute kitten' %}",
			"{{< figure class=\"right\" src=\"/placekitten/300/500\" title=\"Place Kitten #4\" alt=\"An image of a very cute kitten\" >}}",
		},
		{
			map[interface{}]interface{}{"category": "book", "layout": "post", "Date": "2015-10-01 12:13:11"},
			"somecontent",
			"---\nDate: \"2015-10-01 12:13:11\"\ncategory: book\nlayout: post\n---\nsomecontent",
		},
	}
	for _, data := range testDataList {
		result, err := convertJekyllContent(data.metadata, data.content)
		c.Assert(result, qt.Equals, data.expect)
		c.Assert(err, qt.IsNil)
	}
}
