// Copyright 2018 The Gitea Authors. All rights reserved.
// Use of this source code is governed by a MIT-style
// license that can be found in the LICENSE file.

package models

import (
	"sort"
	"testing"

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

func TestAddTopic(t *testing.T) {
	assert.NoError(t, PrepareTestDatabase())

	topics, err := FindTopics(&FindTopicOptions{})
	assert.NoError(t, err)
	assert.EqualValues(t, 3, len(topics))

	topics, err = FindTopics(&FindTopicOptions{
		Limit: 2,
	})
	assert.NoError(t, err)
	assert.EqualValues(t, 2, len(topics))

	topics, err = FindTopics(&FindTopicOptions{
		RepoID: 1,
	})
	assert.NoError(t, err)
	assert.EqualValues(t, 3, len(topics))

	assert.NoError(t, SaveTopics(2, "golang"))
	topics, err = FindTopics(&FindTopicOptions{})
	assert.NoError(t, err)
	assert.EqualValues(t, 3, len(topics))

	topics, err = FindTopics(&FindTopicOptions{
		RepoID: 2,
	})
	assert.NoError(t, err)
	assert.EqualValues(t, 1, len(topics))

	assert.NoError(t, SaveTopics(2, "golang", "gitea"))
	topic, err := GetTopicByName("gitea")
	assert.NoError(t, err)
	assert.EqualValues(t, 1, topic.RepoCount)

	topics, err = FindTopics(&FindTopicOptions{})
	assert.NoError(t, err)
	assert.EqualValues(t, 4, len(topics))

	topics, err = FindTopics(&FindTopicOptions{
		RepoID: 2,
	})
	assert.NoError(t, err)
	assert.EqualValues(t, 2, len(topics))
}

func TestTopicValidator(t *testing.T) {
	assert.True(t, TopicValidator("first-topic"))
	assert.True(t, TopicValidator("#second-test_topic"))
	assert.True(t, TopicValidator("third+project+topic.with+max_length"))

	assert.False(t, TopicValidator("$fourth-topic"))
	assert.False(t, TopicValidator("#fifth,test;topic"))
	assert.False(t, TopicValidator("#sixth-go+project.topic+with+excess_length"))
}

func TestRemoveDuplicateTopics(t *testing.T) {
	topics := []string{"first", "second", "eleventh", "third", "fourth", "fifth", "sixth", "second", "seventh",
		"eleventh", "first", "eighth", "ninth", "sixth", "tenth", "eleventh"}

	expectedSlice := []string{"first", "second", "third", "fourth", "fifth", "sixth", "seventh", "eighth", "ninth", "tenth", "eleventh"}

	topics = RemoveDuplicateTopics(topics)
	assert.Len(t, topics, 11)

	sort.Strings(topics)
	sort.Strings(expectedSlice)
	assert.EqualValues(t, expectedSlice, topics)
}