package content

import (
	"testing"
)

func TestGenerateSlug(t *testing.T) {
	m := &Manager{}

	tests := []struct {
		input    string
		expected string
	}{
		{"Hello World", "hello-world"},
		{"Hello, World!", "hello-world"},
		{"Test@#$%^&*()", "test"},
		{"   Multiple   Spaces   ", "multiple-spaces"},
		{"", "untitled"},
		{"!@#$%", "untitled"},
		{"123 Test", "123-test"},
		{"Test-With-Dashes", "test-with-dashes"},
	}

	for _, test := range tests {
		result := m.generateSlug(test.input)
		if result != test.expected {
			t.Errorf("generateSlug(%q) = %q, expected %q", test.input, result, test.expected)
		}
	}
}

func TestGenerateExcerpt(t *testing.T) {
	m := &Manager{}

	tests := []struct {
		input    string
		expected string
	}{
		{
			"This is a short text",
			"This is a short text",
		},
		{
			"One two three four five six seven eight nine ten eleven twelve thirteen fourteen fifteen sixteen seventeen eighteen nineteen twenty twenty-one twenty-two twenty-three twenty-four twenty-five twenty-six twenty-seven twenty-eight twenty-nine thirty thirty-one",
			"One two three four five six seven eight nine ten eleven twelve thirteen fourteen fifteen sixteen seventeen eighteen nineteen twenty twenty-one twenty-two twenty-three twenty-four twenty-five twenty-six twenty-seven twenty-eight twenty-nine thirty...",
		},
		{
			"",
			"",
		},
	}

	for _, test := range tests {
		result := m.generateExcerpt(test.input)
		if result != test.expected {
			t.Errorf("generateExcerpt() = %q, expected %q", result, test.expected)
		}
	}
}

func TestParseFrontmatter(t *testing.T) {
	m := &Manager{}

	tests := []struct {
		name     string
		lines    []string
		expected map[string]interface{}
	}{
		{
			name: "simple frontmatter",
			lines: []string{
				"title: My Post",
				"date: 2024-01-15",
				"---",
			},
			expected: map[string]interface{}{
				"title": "My Post",
				"date":  "2024-01-15",
			},
		},
		{
			name: "frontmatter with arrays",
			lines: []string{
				"title: My Post",
				"categories: [Technology, Go]",
				"tags: [golang, web]",
				"---",
			},
			expected: map[string]interface{}{
				"title":      "My Post",
				"categories": []interface{}{"Technology", "Go"},
				"tags":       []interface{}{"golang", "web"},
			},
		},
		{
			name:     "empty frontmatter",
			lines:    []string{},
			expected: map[string]interface{}{},
		},
	}

	for _, test := range tests {
		t.Run(test.name, func(t *testing.T) {
			result := m.parseFrontmatter(test.lines)
			if len(result) != len(test.expected) {
				t.Errorf("parseFrontmatter() returned %d items, expected %d", len(result), len(test.expected))
			}
		})
	}
}