feat: initial commit — unarr CLI

Search, inspect, stream, and download torrents from the terminal.
Replaces the entire *arr stack with a single binary.

internal/cmd/config.go

@@ -0,0 +1,109 @@
+package cmd
+
+import (
+	"bufio"
+	"fmt"
+	"os"
+	"strings"
+
+	"github.com/fatih/color"
+	"github.com/spf13/cobra"
+	"github.com/torrentclaw/torrentclaw-cli/internal/config"
+)
+
+func newConfigCmd() *cobra.Command {
+	cmd := &cobra.Command{
+		Use:   "config",
+		Short: "Configure unarr",
+		Long: `Interactive setup for unarr.
+
+Configures the API URL, API key, default country, and saves to config file.`,
+		Example: `  unarr config`,
+		RunE: func(cmd *cobra.Command, args []string) error {
+			return runConfig()
+		},
+	}
+
+	return cmd
+}
+
+func runConfig() error {
+	if !isTerminal() {
+		return fmt.Errorf("interactive config requires a terminal (use --api-key flag or env vars instead)")
+	}
+
+	reader := bufio.NewReader(os.Stdin)
+	bold := color.New(color.Bold)
+	green := color.New(color.FgGreen)
+
+	cfg := loadConfig()
+
+	fmt.Println()
+	bold.Println("  unarr Configuration")
+	fmt.Println()
+
+	// API URL
+	currentURL := cfg.Auth.APIURL
+	fmt.Printf("  API URL [%s]: ", currentURL)
+	apiURL, _ := reader.ReadString('\n')
+	apiURL = strings.TrimSpace(apiURL)
+	if apiURL == "" {
+		apiURL = currentURL
+	}
+
+	// API Key
+	currentKey := cfg.Auth.APIKey
+	keyDisplay := ""
+	if currentKey != "" {
+		if len(currentKey) > 8 {
+			keyDisplay = currentKey[:8] + "..."
+		} else {
+			keyDisplay = currentKey
+		}
+	}
+	fmt.Printf("  API Key [%s]: ", keyDisplay)
+	apiKey, _ := reader.ReadString('\n')
+	apiKey = strings.TrimSpace(apiKey)
+	if apiKey == "" {
+		apiKey = currentKey
+	}
+
+	// Country
+	currentCountry := cfg.General.Country
+	fmt.Printf("  Default country [%s]: ", currentCountry)
+	country, _ := reader.ReadString('\n')
+	country = strings.TrimSpace(country)
+	if country == "" {
+		country = currentCountry
+	}
+
+	// Apply changes
+	cfg.Auth.APIURL = apiURL
+	cfg.Auth.APIKey = apiKey
+	cfg.General.Country = country
+
+	// Save
+	configPath := config.FilePath()
+	if cfgFile != "" {
+		configPath = cfgFile
+	}
+
+	if err := config.Save(cfg, configPath); err != nil {
+		return fmt.Errorf("could not save config: %w", err)
+	}
+
+	fmt.Println()
+	green.Printf("  Configuration saved to %s\n", configPath)
+	fmt.Println()
+
+	return nil
+}
+
+// isTerminal checks if stdin is a terminal.
+func isTerminal() bool {
+	fi, err := os.Stdin.Stat()
+	if err != nil {
+		return false
+	}
+	return fi.Mode()&os.ModeCharDevice != 0
+}