feat: enable rich text formatting for campfire posts

README.md

@@ -795,7 +795,7 @@ bc4 supports Markdown input for creating content that gets automatically convert
 - ✅ **Messages** - List, post, view, and edit messages on project message boards
 - ✅ **Comments** - Create and edit comments with Markdown formatting
 - ✅ **Documents** - Create and edit documents with Markdown formatting
-- ❌ **Campfire** - Plain text only (API limitation)
+- ✅ **Campfire** - Post messages with Markdown formatting
 
 ### Supported Markdown Elements
 - **Bold** (`**text**`), *italic* (`*text*`), ~~strikethrough~~ (`~~text~~`)

cmd/campfire/post.go

@@ -8,6 +8,7 @@ import (
 
 	"github.com/needmore/bc4/internal/api"
 	"github.com/needmore/bc4/internal/factory"
+	"github.com/needmore/bc4/internal/markdown"
 	"github.com/needmore/bc4/internal/parser"
 	"github.com/spf13/cobra"
 )
@@ -105,17 +106,14 @@ func newPostCmd(f *factory.Factory) *cobra.Command {
 				return fmt.Errorf("message cannot be empty")
 			}
 
-			// For now, just post the plain content
-			// The API seems to be escaping HTML in campfire messages
-			// TODO: Investigate the correct way to send rich text to campfire
-			// converter := markdown.NewConverter()
-			// richContent, err := converter.MarkdownToRichText(content)
-			// if err != nil {
-			// 	return fmt.Errorf("failed to convert message: %w", err)
-			// }
+			converter := markdown.NewConverter()
+			richContent, err := converter.MarkdownToRichText(content)
+			if err != nil {
+				return fmt.Errorf("failed to convert message: %w", err)
+			}
 
 			// Post the message
-			line, err := campfireOps.PostCampfireLine(f.Context(), projectID, campfireID, content)
+			line, err := campfireOps.PostCampfireLine(f.Context(), projectID, campfireID, richContent, "text/html")
 			if err != nil {
 				return fmt.Errorf("failed to post message: %w", err)
 			}

docs/SPEC.md

@@ -404,6 +404,7 @@ According to the Basecamp API, the following resources support rich text content
 **Currently Implemented:**
 - ✅ **Todo** - `content` (title) and `description` fields support Markdown input
 - ✅ **Comment** - `content` field supports Markdown input and bc-attachment tags
+- ✅ **Campfire line** - uses `content_type: "text/html"` to send rich text
 
 **Future Implementation:**
 - 🔄 **Card** - `title` and `content` fields will support Markdown
@@ -413,9 +414,6 @@ According to the Basecamp API, the following resources support rich text content
 - 🔄 **Upload** - `description` field will support Markdown
 - 🔄 **To-do list** - `description` field will support Markdown
 
-**Not Supported (API Limitation):**
-- ❌ **Campfire line** - `content` field is plain text only per API specification
-
 ### Markdown to Rich Text Conversion
 
 The `internal/markdown` package provides bidirectional conversion:

internal/api/campfire.go

@@ -43,7 +43,8 @@ type CampfireLine struct {
 
 // CampfireLineCreate represents the request body for creating a campfire line
 type CampfireLineCreate struct {
-	Content string `json:"content"`
+	Content     string `json:"content"`
+	ContentType string `json:"content_type,omitempty"`
 }
 
 // ListCampfires returns all campfires for a project
@@ -96,12 +97,13 @@ func (c *Client) GetCampfireLines(ctx context.Context, projectID string, campfir
 }
 
 // PostCampfireLine posts a new message to a campfire
-func (c *Client) PostCampfireLine(ctx context.Context, projectID string, campfireID int64, content string) (*CampfireLine, error) {
+func (c *Client) PostCampfireLine(ctx context.Context, projectID string, campfireID int64, content string, contentType string) (*CampfireLine, error) {
 	var line CampfireLine
 	path := fmt.Sprintf("/buckets/%s/chats/%d/lines.json", projectID, campfireID)
 
 	payload := CampfireLineCreate{
-		Content: content,
+		Content:     content,
+		ContentType: contentType,
 	}
 
 	if err := c.Post(path, payload, &line); err != nil {

internal/api/interface.go

@@ -31,7 +31,7 @@ type APIClient interface {
 	GetCampfire(ctx context.Context, projectID string, campfireID int64) (*Campfire, error)
 	GetCampfireByName(ctx context.Context, projectID string, name string) (*Campfire, error)
 	GetCampfireLines(ctx context.Context, projectID string, campfireID int64, limit int) ([]CampfireLine, error)
-	PostCampfireLine(ctx context.Context, projectID string, campfireID int64, content string) (*CampfireLine, error)
+	PostCampfireLine(ctx context.Context, projectID string, campfireID int64, content string, contentType string) (*CampfireLine, error)
 	DeleteCampfireLine(ctx context.Context, projectID string, campfireID int64, lineID int64) error
 
 	// Card table methods

internal/api/mock/client.go

@@ -292,8 +292,8 @@ func (m *MockClient) GetCampfireLines(ctx context.Context, projectID string, cam
 }
 
 // PostCampfireLine mock implementation
-func (m *MockClient) PostCampfireLine(ctx context.Context, projectID string, campfireID int64, content string) (*api.CampfireLine, error) {
-	m.Calls = append(m.Calls, fmt.Sprintf("PostCampfireLine(%s, %d, %s)", projectID, campfireID, content))
+func (m *MockClient) PostCampfireLine(ctx context.Context, projectID string, campfireID int64, content string, contentType string) (*api.CampfireLine, error) {
+	m.Calls = append(m.Calls, fmt.Sprintf("PostCampfireLine(%s, %d, %s, %s)", projectID, campfireID, content, contentType))
 	if m.PostCampfireLineError != nil {
 		return nil, m.PostCampfireLineError
 	}

internal/api/modular.go

@@ -42,7 +42,7 @@ type CampfireOperations interface {
 	GetCampfire(ctx context.Context, projectID string, campfireID int64) (*Campfire, error)
 	GetCampfireByName(ctx context.Context, projectID string, name string) (*Campfire, error)
 	GetCampfireLines(ctx context.Context, projectID string, campfireID int64, limit int) ([]CampfireLine, error)
-	PostCampfireLine(ctx context.Context, projectID string, campfireID int64, content string) (*CampfireLine, error)
+	PostCampfireLine(ctx context.Context, projectID string, campfireID int64, content string, contentType string) (*CampfireLine, error)
 	DeleteCampfireLine(ctx context.Context, projectID string, campfireID int64, lineID int64) error
 }
 

internal/markdown/converter.go

@@ -39,6 +39,7 @@ func NewConverter() Converter {
 		),
 		goldmark.WithRendererOptions(
 			html.WithXHTML(),
+			html.WithHardWraps(),
 		),
 	)
 

internal/markdown/converter_test.go

@@ -125,7 +125,7 @@ func TestMarkdownToRichText(t *testing.T) {
 		{
 			name:     "multiline blockquote",
 			input:    "> Line 1\n> Line 2",
-			expected: "<blockquote><div>Line 1\nLine 2</div></blockquote>",
+			expected: "<blockquote><div>Line 1<br>Line 2</div></blockquote>",
 		},
 		{
 			name:     "blockquote with formatting",