2 files changed, 187 insertions, 0 deletions
diff --git a/internal/cli/root.go b/internal/cli/root.go
new file mode 100644
index 0000000..6029e81
--- /dev/null
+++ b/internal/cli/root.go
@@ -0,0 +1,59 @@
+package cli
+
+import (
+	"fmt"
+
+	timr "codeberg.org/snonux/timr/internal"
+	"codeberg.org/snonux/timr/internal/config"
+	"github.com/spf13/cobra"
+)
+
+var loadedConfig = config.Default()
+
+// Execute runs the root command.
+func Execute() error {
+	return NewRootCmd().Execute()
+}
+
+// NewRootCmd creates the Cobra root command.
+func NewRootCmd() *cobra.Command {
+	var configPath string
+	var showVersion bool
+
+	cmd := &cobra.Command{
+		Use:          "timr",
+		Short:        "Track time from your terminal",
+		SilenceUsage: true,
+		PersistentPreRunE: func(cmd *cobra.Command, args []string) error {
+			if showVersion {
+				return nil
+			}
+
+			cfg, err := config.Load(configPath)
+			if err != nil {
+				return fmt.Errorf("load config: %w", err)
+			}
+
+			loadedConfig = cfg
+			return nil
+		},
+		RunE: func(cmd *cobra.Command, args []string) error {
+			if showVersion {
+				_, err := fmt.Fprintln(cmd.OutOrStdout(), timr.Version)
+				return err
+			}
+
+			return cmd.Help()
+		},
+	}
+
+	cmd.Flags().BoolVar(&showVersion, "version", false, "Print version and exit")
+	cmd.PersistentFlags().StringVar(&configPath, "config", "", "Path to config file")
+
+	return cmd
+}
+
+// CurrentConfig returns the config loaded in PersistentPreRunE.
+func CurrentConfig() config.Config {
+	return loadedConfig
+}
diff --git a/internal/cli/root_test.go b/internal/cli/root_test.go
new file mode 100644
index 0000000..c900027
--- /dev/null
+++ b/internal/cli/root_test.go
@@ -0,0 +1,128 @@
+package cli
+
+import (
+	"bytes"
+	"io"
+	"os"
+	"path/filepath"
+	"strings"
+	"testing"
+
+	timr "codeberg.org/snonux/timr/internal"
+)
+
+func TestRootVersionFlag(t *testing.T) {
+	loadedConfig = CurrentConfig()
+
+	var out bytes.Buffer
+	cmd := NewRootCmd()
+	cmd.SetOut(&out)
+	cmd.SetErr(io.Discard)
+	cmd.SetArgs([]string{"--version"})
+
+	if err := cmd.Execute(); err != nil {
+		t.Fatalf("Execute() error = %v", err)
+	}
+
+	if strings.TrimSpace(out.String()) != timr.Version {
+		t.Fatalf("output = %q, want %q", strings.TrimSpace(out.String()), timr.Version)
+	}
+}
+
+func TestRootLoadsConfigInPersistentPreRun(t *testing.T) {
+	tempHome := t.TempDir()
+	t.Setenv("HOME", tempHome)
+
+	cfgPath := filepath.Join(t.TempDir(), "config.json")
+	content := `{
+  "hostname": "from-config",
+  "worktime_db_dir": "~/custom-db"
+}`
+	if err := os.WriteFile(cfgPath, []byte(content), 0o644); err != nil {
+		t.Fatalf("WriteFile() error = %v", err)
+	}
+
+	cmd := NewRootCmd()
+	cmd.SetOut(io.Discard)
+	cmd.SetErr(io.Discard)
+	cmd.SetArgs([]string{"--config", cfgPath})
+
+	if err := cmd.Execute(); err != nil {
+		t.Fatalf("Execute() error = %v", err)
+	}
+
+	cfg := CurrentConfig()
+	if cfg.Hostname != "from-config" {
+		t.Fatalf("Hostname = %q, want %q", cfg.Hostname, "from-config")
+	}
+
+	wantDir := filepath.Join(tempHome, "custom-db")
+	if cfg.WorktimeDBDir != wantDir {
+		t.Fatalf("WorktimeDBDir = %q, want %q", cfg.WorktimeDBDir, wantDir)
+	}
+}
+
+func TestRootInvalidConfigFileReturnsError(t *testing.T) {
+	cfgPath := filepath.Join(t.TempDir(), "config.json")
+	if err := os.WriteFile(cfgPath, []byte(`{"hostname":`), 0o644); err != nil {
+		t.Fatalf("WriteFile() error = %v", err)
+	}
+
+	cmd := NewRootCmd()
+	cmd.SetOut(io.Discard)
+	cmd.SetErr(io.Discard)
+	cmd.SetArgs([]string{"--config", cfgPath})
+
+	err := cmd.Execute()
+	if err == nil {
+		t.Fatal("Execute() error = nil, want config parse error")
+	}
+	if !strings.Contains(err.Error(), "load config") {
+		t.Fatalf("Execute() error = %v, want load config context", err)
+	}
+}
+
+func TestVersionSkipsConfigLoading(t *testing.T) {
+	cfgPath := filepath.Join(t.TempDir(), "config.json")
+	if err := os.WriteFile(cfgPath, []byte(`{"hostname":`), 0o644); err != nil {
+		t.Fatalf("WriteFile() error = %v", err)
+	}
+
+	var out bytes.Buffer
+	cmd := NewRootCmd()
+	cmd.SetOut(&out)
+	cmd.SetErr(io.Discard)
+	cmd.SetArgs([]string{"--config", cfgPath, "--version"})
+
+	if err := cmd.Execute(); err != nil {
+		t.Fatalf("Execute() error = %v", err)
+	}
+
+	if strings.TrimSpace(out.String()) != timr.Version {
+		t.Fatalf("output = %q, want %q", strings.TrimSpace(out.String()), timr.Version)
+	}
+}
+
+func TestRootUsesDefaultConfigWhenNoFileExists(t *testing.T) {
+	tempHome := t.TempDir()
+	t.Setenv("HOME", tempHome)
+	t.Setenv("XDG_CONFIG_HOME", filepath.Join(tempHome, ".config"))
+
+	cmd := NewRootCmd()
+	cmd.SetOut(io.Discard)
+	cmd.SetErr(io.Discard)
+
+	if err := cmd.Execute(); err != nil {
+		t.Fatalf("Execute() error = %v", err)
+	}
+
+	cfg := CurrentConfig()
+	if cfg.WeekWorkHours != 40 {
+		t.Fatalf("WeekWorkHours = %v, want 40", cfg.WeekWorkHours)
+	}
+
+	wantDir := filepath.Join(tempHome, "git", "worktime")
+	if cfg.WorktimeDBDir != wantDir {
+		t.Fatalf("WorktimeDBDir = %q, want %q", cfg.WorktimeDBDir, wantDir)
+	}
+}