fix: resolve mnd lint issues with named constants

cmd/chat-cli/api/client.go

@@ -14,6 +14,15 @@ import (
 	"time"
 )
 
+const (
+	// httpClientTimeout is the default HTTP client timeout in seconds.
+	httpClientTimeout = 30
+	// httpStatusErrorThreshold is the minimum status code considered an error.
+	httpStatusErrorThreshold = 400
+	// pollTimeoutBuffer is extra seconds added to HTTP timeout beyond the poll timeout.
+	pollTimeoutBuffer = 5
+)
+
 var (
 	// ErrHTTPStatus is returned when the server responds with an error status code.
 	ErrHTTPStatus = errors.New("HTTP error")
@@ -33,7 +42,7 @@ func NewClient(baseURL string) *Client {
 	return &Client{
 		BaseURL: baseURL,
 		HTTPClient: &http.Client{
-			Timeout: 30 * time.Second,
+			Timeout: httpClientTimeout * time.Second,
 		},
 	}
 }
@@ -72,7 +81,7 @@ func (c *Client) do(method, path string, body any) ([]byte, error) {
 		return nil, fmt.Errorf("read body: %w", err)
 	}
 
-	if resp.StatusCode >= 400 {
+	if resp.StatusCode >= httpStatusErrorThreshold {
 		return data, fmt.Errorf("%w: %d: %s", ErrHTTPStatus, resp.StatusCode, string(data))
 	}
 
@@ -125,7 +134,7 @@ func (c *Client) SendMessage(msg *Message) error {
 // PollMessages long-polls for new messages.
 func (c *Client) PollMessages(afterID string, timeout int) ([]Message, error) {
 	// Use a longer HTTP timeout than the server long-poll timeout.
-	client := &http.Client{Timeout: time.Duration(timeout+5) * time.Second}
+	client := &http.Client{Timeout: time.Duration(timeout+pollTimeoutBuffer) * time.Second}
 
 	params := url.Values{}
 	if afterID != "" {
@@ -158,7 +167,7 @@ func (c *Client) PollMessages(afterID string, timeout int) ([]Message, error) {
 		return nil, err
 	}
 
-	if resp.StatusCode >= 400 {
+	if resp.StatusCode >= httpStatusErrorThreshold {
 		return nil, fmt.Errorf("%w: %d: %s", ErrHTTPStatus, resp.StatusCode, string(data))
 	}
 

cmd/chat-cli/main.go

@@ -11,6 +11,15 @@ import (
 	"git.eeqj.de/sneak/chat/cmd/chat-cli/api"
 )
 
+const (
+	// splitParts is the number of parts to split a command into (command + args).
+	splitParts = 2
+	// pollTimeout is the long-poll timeout in seconds.
+	pollTimeout = 15
+	// pollRetryDelay is the delay before retrying a failed poll.
+	pollRetryDelay = 2 * time.Second
+)
+
 // App holds the application state.
 type App struct {
 	ui     *UI
@@ -89,7 +98,7 @@ func (a *App) handleInput(text string) {
 }
 
 func (a *App) handleCommand(text string) {
-	parts := strings.SplitN(text, " ", 2)
+	parts := strings.SplitN(text, " ", splitParts)
 	cmd := strings.ToLower(parts[0])
 
 	args := ""
@@ -285,8 +294,8 @@ func (a *App) cmdPart(channel string) {
 }
 
 func (a *App) cmdMsg(args string) {
-	parts := strings.SplitN(args, " ", 2)
-	if len(parts) < 2 {
+	parts := strings.SplitN(args, " ", splitParts)
+	if len(parts) < splitParts {
 		a.ui.AddStatus("[red]Usage: /msg <nick> <text>")
 
 		return
@@ -514,10 +523,10 @@ func (a *App) pollLoop() {
 			return
 		}
 
-		msgs, err := client.PollMessages(lastID, 15)
+		msgs, err := client.PollMessages(lastID, pollTimeout)
 		if err != nil {
 			// Transient error — retry after delay.
-			time.Sleep(2 * time.Second)
+			time.Sleep(pollRetryDelay)
 
 			continue
 		}

internal/handlers/api.go

@@ -41,8 +41,10 @@ func (s *Handlers) requireAuth(w http.ResponseWriter, r *http.Request) (string,
 	return uid, nick, true
 }
 
+const idBytes = 16
+
 func generateID() string {
-	b := make([]byte, 16)
+	b := make([]byte, idBytes)
 	_, _ = rand.Read(b)
 
 	return hex.EncodeToString(b)