// SPDX-License-Identifier: GPL-3.0-or-later

package plan

import (
	"fmt"
	"testing"
	"time"

	"krino/internal/config"
)

// TestBuildRefusesDotNames: a rename whose placeholders produce "", "." or
// ".." names a directory, not a file; the step is skipped with a reason
// instead of renaming a file onto its own folder or the one above.
func TestBuildRefusesDotNames(t *testing.T) {
	for _, capture := range []string{"", ".", ".."} {
		in := []Input{{
			File:  file("/r", "x.pdf"),
			Rules: []RuleMatch{{Name: "a", Captures: []string{"x.pdf", capture}, Actions: []config.Action{act(config.Rename, "{1}")}}},
		}}
		c := Build("/r", in, time.Now(), NoDisk{}, NewClaims())[0]
		if want := fmt.Sprintf("rename produced the name %q", capture); c.Steps[0].Skip != want {
			t.Errorf("capture %q: Skip = %q, want %q", capture, c.Steps[0].Skip, want)
		}
	}
}

// TestBuildRefusesDotDotFromPlaceholder: a file name can capture "..",
// though never "/", so a destination whose placeholders add a ".." segment
// would leave the directory the rule names: that step is skipped. A ".."
// the rule wrote itself is the rule's own business, and "..x" is a name,
// not a segment.
func TestBuildRefusesDotDotFromPlaceholder(t *testing.T) {
	step := func(dest string) Step {
		in := []Input{{
			File:  file("/r", "x.pdf"),
			Rules: []RuleMatch{{Name: "a", Captures: []string{"x.pdf", ".."}, Actions: []config.Action{act(config.Move, dest)}}},
		}}
		return Build("/r", in, time.Now(), NoDisk{}, NewClaims())[0].Steps[0]
	}
	if s := step("/w/{1}/in"); s.Skip != `destination "/w/../in" leaves its directory through a placeholder` {
		t.Errorf("placeholder ..: Skip = %q, Dst = %q", s.Skip, s.Dst)
	}
	if s := step("/w/../in"); s.Skip != "" || s.Dst != "/in/x.pdf" {
		t.Errorf("written ..: Skip = %q, Dst = %q", s.Skip, s.Dst)
	}
	if s := step("/w/{1}x"); s.Skip != "" || s.Dst != "/w/..x/x.pdf" {
		t.Errorf("..x: Skip = %q, Dst = %q", s.Skip, s.Dst)
	}
}