package extract

import (
	"os"
	"path/filepath"
	"strings"
	"testing"
)

// PR #156 review: putting extract.Text(path) back at the ingest call sites
// stayed green, because only TextIn itself was tested. Reading a caller-chosen
// path by name reopens it after the containment check (hyperguild#153 item 3),
// so outside this package only TextIn may be used.
func TestNothingOutsideExtractCallsTextByPath(t *testing.T) {
	root := filepath.Join("..", "..")
	var offenders []string
	err := filepath.WalkDir(root, func(p string, d os.DirEntry, err error) error {
		if err != nil {
			return err
		}
		if d.IsDir() && (d.Name() == "vendor" || d.Name() == ".git") {
			return filepath.SkipDir
		}
		if d.IsDir() || !strings.HasSuffix(p, ".go") || strings.HasSuffix(p, "_test.go") ||
			strings.Contains(filepath.ToSlash(p), "internal/extract/") {
			return nil
		}
		b, err := os.ReadFile(p)
		if err != nil {
			return err
		}
		if strings.Contains(string(b), "extract.Text(") {
			offenders = append(offenders, p)
		}
		return nil
	})
	if err != nil {
		t.Fatal(err)
	}
	if len(offenders) > 0 {
		t.Fatalf("extract.Text( called outside internal/extract (use TextIn through an os.Root): %v", offenders)
	}
}