package adapter_test

import (
	"go/parser"
	"go/token"
	"os"
	"path/filepath"
	"runtime"
	"strconv"
	"strings"
	"testing"
)

func TestScriptoriumAdaptersUseOnlyPublicFrameworkBoundary(t *testing.T) {
	_, testFile, _, ok := runtime.Caller(0)
	if !ok {
		t.Fatal("locate dependency guard source")
	}

	adapterDir := filepath.Dir(testFile)
	directories := []string{
		filepath.Join(adapterDir, "cli"),
		filepath.Join(adapterDir, "http"),
		filepath.Join(adapterDir, "..", "format"),
	}
	forbidden := map[string]struct{}{
		"gitea.maximumdirect.net/eric/scriptorium/internal/domain":          {},
		"gitea.maximumdirect.net/eric/scriptorium/internal/usecase":         {},
		"gitea.maximumdirect.net/eric/scriptorium/internal/promptdef":       {},
		"gitea.maximumdirect.net/eric/scriptorium/internal/prompt":          {},
		"gitea.maximumdirect.net/eric/scriptorium/internal/profile":         {},
		"gitea.maximumdirect.net/eric/scriptorium/internal/profile/builtin": {},
		"gitea.maximumdirect.net/eric/scriptorium/internal/validate":        {},
		"gitea.maximumdirect.net/eric/scriptorium/internal/llm":             {},
		"gitea.maximumdirect.net/eric/scriptorium/internal/artifact":        {},
	}

	for _, directory := range directories {
		entries, err := os.ReadDir(directory)
		if err != nil {
			t.Fatalf("read source directory %s: %v", directory, err)
		}
		for _, entry := range entries {
			if entry.IsDir() || !strings.HasSuffix(entry.Name(), ".go") || strings.HasSuffix(entry.Name(), "_test.go") {
				continue
			}

			path := filepath.Join(directory, entry.Name())
			file, err := parser.ParseFile(token.NewFileSet(), path, nil, parser.ImportsOnly)
			if err != nil {
				t.Fatalf("parse imports in %s: %v", path, err)
			}
			for _, imported := range file.Imports {
				importPath, err := strconv.Unquote(imported.Path.Value)
				if err != nil {
					t.Fatalf("parse import path in %s: %v", path, err)
				}
				if _, found := forbidden[importPath]; found {
					t.Errorf("%s directly imports forbidden framework package %s", path, importPath)
				}
			}
		}
	}
}