refactor: better project structure (#35)

This project is starting to grow, and I've seen flaws in the initial
project structure design
I think I'll restructure the entire project directory for better
scalability and also cleaner

spec/filegen_test.go

@@ -0,0 +1,94 @@
+package spec
+
+import (
+	"os"
+	"path/filepath"
+	"strings"
+	"testing"
+)
+
+func TestFileGenerator(t *testing.T) {
+	// Setup mock files
+	tmp := t.TempDir()
+	_ = os.MkdirAll(filepath.Join(tmp, "src"), 0755)
+	_ = os.WriteFile(filepath.Join(tmp, "main.go"), []byte(""), 0644)
+	_ = os.WriteFile(filepath.Join(tmp, "README.md"), []byte(""), 0644)
+	_ = os.WriteFile(filepath.Join(tmp, ".hidden"), []byte(""), 0644)
+	_ = os.WriteFile(filepath.Join(tmp, "src/utils.go"), []byte(""), 0644)
+
+	oldWd, _ := os.Getwd()
+	_ = os.Chdir(tmp)
+	defer func() { _ = os.Chdir(oldWd) }()
+
+
+	t.Run("dirOnly shows only dirs", func(t *testing.T) {
+		gen := FileGenerator("/")
+		results := gen([]string{"cd", ""}, "cd ", "")
+		for _, r := range results {
+			if !strings.HasSuffix(r.Cmd, "/") {
+				t.Errorf("Expected only directories, got %q", r.Cmd)
+			}
+		}
+	})
+
+
+	t.Run("Filter extension", func(t *testing.T) {
+		gen := FileGenerator(".go")
+		results := gen([]string{"ls", ""}, "ls ", "")
+		foundMain := false
+		for _, r := range results {
+			if r.Cmd == "main.go" {
+				foundMain = true
+			}
+			if r.Cmd == "README.md" {
+				t.Errorf("Did not expect README.md when filtering for .go")
+			}
+		}
+		if !foundMain {
+			t.Errorf("FileGenerator(\".go\") did not suggest main.go")
+		}
+	})
+
+
+	t.Run("Nested path", func(t *testing.T) {
+		gen := FileGenerator()
+		results := gen([]string{"ls", "src/u"}, "ls src/u", "src/u")
+		foundUtils := false
+		for _, r := range results {
+			if r.Cmd == "src/utils.go" {
+				foundUtils = true
+			}
+		}
+		if !foundUtils {
+			t.Errorf("Did not find src/utils.go for nested path src/u")
+		}
+	})
+
+
+	t.Run("Deep scan 1 level", func(t *testing.T) {
+		gen := FileGenerator()
+		results := gen([]string{"ls", "src/"}, "ls src/", "src/")
+		foundUtils := false
+		for _, r := range results {
+			if r.Cmd == "src/utils.go" {
+				foundUtils = true
+			}
+		}
+		if !foundUtils {
+			t.Errorf("Deep scan did not find src/utils.go")
+		}
+	})
+
+
+
+
+	t.Run("Hidden files are skipped", func(t *testing.T) {
+		gen := FileGenerator()
+		results := gen([]string{"ls", ""}, "ls ", "")
+		for _, r := range results {
+			if strings.HasPrefix(r.Cmd, ".") {
+				t.Errorf("Hidden file %q should be skipped", r.Cmd)
+			}
+		}
+	})
+}