package web

import (
	"go/ast"
	"go/parser"
	"go/token"
	"os"
	"path/filepath"
	"strings"
	"testing"

	"gitea.dooplex.hu/admin/felhom-controller/internal/backup"
)

// R-1256 H6: every restore handler records its op through beginRestoreOp, which asks about every other operation in
// the same step (backup.TryBeginRestoreOp). A handler that calls BeginRestoreOp directly re-opens the window between
// the early refusal and the record. RED-PROOF: put one `s.backupMgr.BeginRestoreOp(...)` back → FAILS, naming the file.
func TestR1256_H6_NoHandlerBeginsARestoreUnchecked(t *testing.T) {
	files, _ := filepath.Glob("*.go")
	for _, f := range files {
		if strings.HasSuffix(f, "_test.go") {
			continue
		}
		src, err := os.ReadFile(f)
		if err != nil {
			t.Fatal(err)
		}
		fs := token.NewFileSet()
		af, err := parser.ParseFile(fs, f, src, 0)
		if err != nil {
			t.Fatal(err)
		}
		ast.Inspect(af, func(n ast.Node) bool {
			if sel, ok := n.(*ast.SelectorExpr); ok && sel.Sel.Name == "BeginRestoreOp" {
				t.Errorf("%s: a direct BeginRestoreOp — begin through s.beginRestoreOp (R-1256 H6)", fs.Position(sel.Pos()))
			}
			return true
		})
	}
}

// The handler's begin refuses with the household's sentence when a second-drive copy began after the early check.
func TestR1256_H6_TheBeginRefusesWithTheCopySentence(t *testing.T) {
	s, _, _ := newOffboxWebServer(t)
	if _, blocked := s.restoreOpBlocked(); blocked {
		t.Fatal("fixture: nothing runs")
	}
	done := backup.MarkTier2CopyForTest("immich")
	msg, ok := s.beginRestoreOp("offbox-reconstitute", "immich")
	done()
	if ok || !strings.Contains(msg, "második meghajtóra") {
		t.Fatalf("the begin must refuse with the copy named; ok=%v %q", ok, msg)
	}
	if s.backupMgr.RestoreStatus().Running {
		t.Fatal("a refused begin recorded a restore")
	}
	if _, ok := s.beginRestoreOp("offbox-reconstitute", "immich"); !ok {
		t.Fatal("after the copy the begin must work")
	}
}