docs: remove emojis from README

The test job ran a 1.24.x/1.25.x matrix, but go.mod requires go 1.25.0, so the
1.24 entry just auto-downloaded the 1.25 toolchain and tested the same thing
twice. Replace the matrix with a single job that sources its Go version from
go.mod via go-version-file, and reference the resolved version through the
setup-go step output in summaries, artifact names, and Codecov flags.

.github/workflows/ci.yml

@@ -35,19 +35,15 @@ jobs:
     runs-on: ubuntu-latest
     permissions:
       contents: write
-    strategy:
-      matrix:
-        go:
-          - 1.24.x
-          - 1.25.x
 
     steps:
       - uses: actions/checkout@v6
 
-      - name: Set up Go ${{ matrix.go }}
+      - name: Set up Go
+        id: setup-go
         uses: actions/setup-go@v6
         with:
-          go-version: ${{ matrix.go }}
+          go-version-file: go.mod
           check-latest: true
 
       - name: Install Task
@@ -70,7 +66,7 @@ jobs:
           {
             cat << EOF
           ## 🔧 Test Environment
-          - **Go Version:** ${{ matrix.go }}
+          - **Go Version:** ${{ steps.setup-go.outputs.go-version }}
           - **OS:** ubuntu-latest
           - **Timestamp:** $(date -u)
 
@@ -90,7 +86,7 @@ jobs:
           # Generate test summary
           {
             cat << EOF
-          ## 🧪 Test Results (Go ${{ matrix.go }})
+          ## 🧪 Test Results (Go ${{ steps.setup-go.outputs.go-version }})
 
           | Metric      | Value                                                         |
           | ----------- | ------------------------------------------------------------- |
@@ -152,7 +148,7 @@ jobs:
 
             {
               cat << EOF
-          ## 📊 Code Coverage (Go ${{ matrix.go }})
+          ## 📊 Code Coverage (Go ${{ steps.setup-go.outputs.go-version }})
 
           **Total Coverage: $COVERAGE**
 
@@ -213,7 +209,7 @@ jobs:
         if: failure()
         uses: actions/upload-artifact@v6
         with:
-          name: test-results-go-${{ matrix.go }}
+          name: test-results-go-${{ steps.setup-go.outputs.go-version }}
           path: |
             test-output.log
             coverage/
@@ -223,7 +219,7 @@ jobs:
         run: |
           {
             cat << EOF
-          ## 🔍 Static Analysis (Go ${{ matrix.go }})
+          ## 🔍 Static Analysis (Go ${{ steps.setup-go.outputs.go-version }})
 
           EOF
 
@@ -268,7 +264,7 @@ jobs:
         if: always()
         run: |
           cat >> "$GITHUB_STEP_SUMMARY" << 'EOF'
-          ## 📋 Job Summary (Go ${{ matrix.go }})
+          ## 📋 Job Summary (Go ${{ steps.setup-go.outputs.go-version }})
 
           | Step            | Status                                                          |
           | --------------- | --------------------------------------------------------------- |
@@ -284,7 +280,7 @@ jobs:
         uses: codecov/codecov-action@v5
         with:
           files: ./coverage/coverage.out
-          flags: Go ${{ matrix.go }}
+          flags: Go ${{ steps.setup-go.outputs.go-version }}
           slug: kjanat/articulate-parser
           token: ${{ secrets.CODECOV_TOKEN }}
 
@@ -292,7 +288,7 @@ jobs:
         if: ${{ !cancelled() }}
         uses: codecov/test-results-action@v1
         with:
-          flags: Go ${{ matrix.go }}
+          flags: Go ${{ steps.setup-go.outputs.go-version }}
           token: ${{ secrets.CODECOV_TOKEN }}
 
   docker-test:

.golangci.yml

@@ -10,8 +10,7 @@ run:
 
   # Skip directories (not allowed in config v2, will use issues exclude instead)
 
-  # Go version
-  go: "1.24"
+  # Go version is autodetected from go.mod
 
   # Include test files
   tests: true

README.md

@@ -78,12 +78,12 @@ flowchart TD
 
 The system follows **Clean Architecture** principles with clear separation of concerns:
 
-- **🎯 Entry Point**: Command-line interface handles user input and coordinates operations
-- **🏗️ Application Layer**: Core business logic with dependency injection
-- **📋 Interface Layer**: Contracts defining behavior without implementation details
-- **🔧 Service Layer**: Concrete implementations of parsing and utility services
-- **📤 Export Layer**: Factory pattern for format-specific exporters
-- **📊 Data Layer**: Domain models representing course structure
+- **Entry Point**: Command-line interface handles user input and coordinates operations
+- **Application Layer**: Core business logic with dependency injection
+- **Interface Layer**: Contracts defining behavior without implementation details
+- **Service Layer**: Concrete implementations of parsing and utility services
+- **Export Layer**: Factory pattern for format-specific exporters
+- **Data Layer**: Domain models representing course structure
 
 ## Features
 
@@ -206,7 +206,7 @@ Then run:
 
 The application is available as a Docker image from GitHub Container Registry.
 
-### 🐳 Docker Image Information
+### Docker Image Information
 
 - **Registry**: `ghcr.io/kjanat/articulate-parser`
 - **Platforms**: linux/amd64, linux/arm64

internal/exporters/factory.go

@@ -13,6 +13,11 @@ const (
 	FormatMarkdown = "markdown"
 	FormatDocx     = "docx"
 	FormatHTML     = "html"
+
+	// Format aliases accepted by CreateExporter.
+	formatAliasMarkdown = "md"
+	formatAliasDocx     = "word"
+	formatAliasHTML     = "htm"
 )
 
 // Factory implements the ExporterFactory interface.
@@ -41,11 +46,11 @@ func NewFactory(htmlCleaner *services.HTMLCleaner) interfaces.ExporterFactory {
 // Format strings are case-insensitive (e.g., "markdown", "DOCX").
 func (f *Factory) CreateExporter(format string) (interfaces.Exporter, error) {
 	switch strings.ToLower(format) {
-	case FormatMarkdown, "md":
+	case FormatMarkdown, formatAliasMarkdown:
 		return NewMarkdownExporter(f.htmlCleaner), nil
-	case FormatDocx, "word":
+	case FormatDocx, formatAliasDocx:
 		return NewDocxExporter(f.htmlCleaner), nil
-	case FormatHTML, "htm":
+	case FormatHTML, formatAliasHTML:
 		return NewHTMLExporter(f.htmlCleaner), nil
 	default:
 		return nil, fmt.Errorf("unsupported export format: %s", format)
@@ -55,5 +60,9 @@ func (f *Factory) CreateExporter(format string) (interfaces.Exporter, error) {
 // SupportedFormats returns a list of all supported export formats,
 // including both primary format names and their aliases.
 func (f *Factory) SupportedFormats() []string {
-	return []string{FormatMarkdown, "md", FormatDocx, "word", FormatHTML, "htm"}
+	return []string{
+		FormatMarkdown, formatAliasMarkdown,
+		FormatDocx, formatAliasDocx,
+		FormatHTML, formatAliasHTML,
+	}
 }

internal/exporters/html_template_data.go

@@ -21,6 +21,9 @@ const (
 	itemTypeDivider        = "divider"
 )
 
+// lessonTypeSection identifies a lesson that acts as a section header.
+const lessonTypeSection = "section"
+
 // templateData represents the data structure passed to the HTML template.
 type templateData struct {
 	Course   models.CourseInfo
@@ -74,7 +77,7 @@ func prepareTemplateData(course *models.Course, htmlCleaner *services.HTMLCleane
 			Description: lesson.Description,
 		}
 
-		if lesson.Type != "section" {
+		if lesson.Type != lessonTypeSection {
 			lessonCounter++
 			section.Number = lessonCounter
 			section.Items = prepareItems(lesson.Items, htmlCleaner)

internal/exporters/markdown.go

@@ -40,35 +40,35 @@ func (e *MarkdownExporter) Export(course *models.Course, outputPath string) erro
 	var buf bytes.Buffer
 
 	// Write course header
-	buf.WriteString(fmt.Sprintf("# %s\n\n", course.Course.Title))
+	fmt.Fprintf(&buf, "# %s\n\n", course.Course.Title)
 
 	if course.Course.Description != "" {
-		buf.WriteString(fmt.Sprintf("%s\n\n", e.htmlCleaner.CleanHTML(course.Course.Description)))
+		fmt.Fprintf(&buf, "%s\n\n", e.htmlCleaner.CleanHTML(course.Course.Description))
 	}
 
 	// Add metadata
 	buf.WriteString("## Course Information\n\n")
-	buf.WriteString(fmt.Sprintf("- **Course ID**: %s\n", course.Course.ID))
-	buf.WriteString(fmt.Sprintf("- **Share ID**: %s\n", course.ShareID))
-	buf.WriteString(fmt.Sprintf("- **Navigation Mode**: %s\n", course.Course.NavigationMode))
+	fmt.Fprintf(&buf, "- **Course ID**: %s\n", course.Course.ID)
+	fmt.Fprintf(&buf, "- **Share ID**: %s\n", course.ShareID)
+	fmt.Fprintf(&buf, "- **Navigation Mode**: %s\n", course.Course.NavigationMode)
 	if course.Course.ExportSettings != nil {
-		buf.WriteString(fmt.Sprintf("- **Export Format**: %s\n", course.Course.ExportSettings.Format))
+		fmt.Fprintf(&buf, "- **Export Format**: %s\n", course.Course.ExportSettings.Format)
 	}
 	buf.WriteString("\n---\n\n")
 
 	// Process lessons
 	lessonCounter := 0
 	for _, lesson := range course.Course.Lessons {
-		if lesson.Type == "section" {
-			buf.WriteString(fmt.Sprintf("# %s\n\n", lesson.Title))
+		if lesson.Type == lessonTypeSection {
+			fmt.Fprintf(&buf, "# %s\n\n", lesson.Title)
 			continue
 		}
 
 		lessonCounter++
-		buf.WriteString(fmt.Sprintf("## Lesson %d: %s\n\n", lessonCounter, lesson.Title))
+		fmt.Fprintf(&buf, "## Lesson %d: %s\n\n", lessonCounter, lesson.Title)
 
 		if lesson.Description != "" {
-			buf.WriteString(fmt.Sprintf("%s\n\n", e.htmlCleaner.CleanHTML(lesson.Description)))
+			fmt.Fprintf(&buf, "%s\n\n", e.htmlCleaner.CleanHTML(lesson.Description))
 		}
 
 		// Process lesson items
@@ -100,19 +100,19 @@ func (e *MarkdownExporter) processItemToMarkdown(buf *bytes.Buffer, item models.
 	itemType := strings.ToLower(item.Type)
 
 	switch itemType {
-	case "text":
+	case itemTypeText:
 		e.processTextItem(buf, item, headingPrefix)
-	case "list":
+	case itemTypeList:
 		e.processListItem(buf, item)
-	case "multimedia":
+	case itemTypeMultimedia:
 		e.processMultimediaItem(buf, item, headingPrefix)
-	case "image":
+	case itemTypeImage:
 		e.processImageItem(buf, item, headingPrefix)
-	case "knowledgecheck":
+	case itemTypeKnowledgeCheck:
 		e.processKnowledgeCheckItem(buf, item, headingPrefix)
-	case "interactive":
+	case itemTypeInteractive:
 		e.processInteractiveItem(buf, item, headingPrefix)
-	case "divider":
+	case itemTypeDivider:
 		e.processDividerItem(buf)
 	default:
 		e.processUnknownItem(buf, item, headingPrefix)

internal/services/parser.go

@@ -15,6 +15,14 @@ import (
 	"github.com/kjanat/articulate-parser/internal/models"
 )
 
+// Default endpoint configuration for the Articulate Rise API.
+const (
+	// Root URL for the Articulate Rise API.
+	defaultBaseURL = "https://rise.articulate.com"
+	// Expected host for Articulate Rise share URLs.
+	riseHost = "rise.articulate.com"
+)
+
 // shareIDRegex is compiled once at package init for extracting share IDs from URIs.
 var shareIDRegex = regexp.MustCompile(`/share/([a-zA-Z0-9_-]+)`)
 
@@ -37,7 +45,7 @@ func NewArticulateParser(logger interfaces.Logger, baseURL string, timeout time.
 		logger = NewNoOpLogger()
 	}
 	if baseURL == "" {
-		baseURL = "https://rise.articulate.com"
+		baseURL = defaultBaseURL
 	}
 	if timeout == 0 {
 		timeout = 30 * time.Second
@@ -132,7 +140,7 @@ func (p *ArticulateParser) extractShareID(uri string) (string, error) {
 	}
 
 	// Validate that it's an Articulate Rise domain
-	if parsedURL.Host != "rise.articulate.com" {
+	if parsedURL.Host != riseHost {
 		return "", fmt.Errorf("invalid domain for Articulate Rise URI: %s", parsedURL.Host)
 	}