latest

internal/cli/cli.go

@@ -0,0 +1,91 @@
+package cli
+
+import (
+	"bufio"
+	"fmt"
+	"os"
+	"strings"
+	"syscall"
+
+	"git.eeqj.de/sneak/secret/internal/secret"
+	"github.com/spf13/afero"
+	"golang.org/x/term"
+)
+
+// Global scanner for consistent stdin reading
+var stdinScanner *bufio.Scanner
+
+// CLIInstance encapsulates all CLI functionality and state
+type CLIInstance struct {
+	fs       afero.Fs
+	stateDir string
+}
+
+// NewCLIInstance creates a new CLI instance with the real filesystem
+func NewCLIInstance() *CLIInstance {
+	fs := afero.NewOsFs()
+	stateDir := secret.DetermineStateDir("")
+	return &CLIInstance{
+		fs:       fs,
+		stateDir: stateDir,
+	}
+}
+
+// NewCLIInstanceWithFs creates a new CLI instance with the given filesystem (for testing)
+func NewCLIInstanceWithFs(fs afero.Fs) *CLIInstance {
+	stateDir := secret.DetermineStateDir("")
+	return &CLIInstance{
+		fs:       fs,
+		stateDir: stateDir,
+	}
+}
+
+// NewCLIInstanceWithStateDir creates a new CLI instance with custom state directory (for testing)
+func NewCLIInstanceWithStateDir(fs afero.Fs, stateDir string) *CLIInstance {
+	return &CLIInstance{
+		fs:       fs,
+		stateDir: stateDir,
+	}
+}
+
+// SetFilesystem sets the filesystem for this CLI instance (for testing)
+func (cli *CLIInstance) SetFilesystem(fs afero.Fs) {
+	cli.fs = fs
+}
+
+// SetStateDir sets the state directory for this CLI instance (for testing)
+func (cli *CLIInstance) SetStateDir(stateDir string) {
+	cli.stateDir = stateDir
+}
+
+// GetStateDir returns the state directory for this CLI instance
+func (cli *CLIInstance) GetStateDir() string {
+	return cli.stateDir
+}
+
+// getStdinScanner returns a shared scanner for stdin to avoid buffering issues
+func getStdinScanner() *bufio.Scanner {
+	if stdinScanner == nil {
+		stdinScanner = bufio.NewScanner(os.Stdin)
+	}
+	return stdinScanner
+}
+
+// readLineFromStdin reads a single line from stdin with a prompt
+// Uses a shared scanner to avoid buffering issues between multiple calls
+func readLineFromStdin(prompt string) (string, error) {
+	// Check if stderr is a terminal - if not, we can't prompt interactively
+	if !term.IsTerminal(int(syscall.Stderr)) {
+		return "", fmt.Errorf("cannot prompt for input: stderr is not a terminal (running in non-interactive mode)")
+	}
+
+	fmt.Fprint(os.Stderr, prompt) // Write prompt to stderr, not stdout
+	scanner := getStdinScanner()
+	if !scanner.Scan() {
+		if err := scanner.Err(); err != nil {
+			return "", fmt.Errorf("failed to read from stdin: %w", err)
+		}
+		return "", fmt.Errorf("failed to read from stdin: EOF")
+	}
+	return strings.TrimSpace(scanner.Text()), nil
+}