//go:build windows

package files

import (
	"context"
	"errors"
	"strings"
	"testing"
)

func TestWindowsExecutablePickerReturnsCleanAbsoluteExecutable(t *testing.T) {
	runner := &fakeRunner{out: []byte("C:\\Program Files\\Google\\Chrome\\Application\\chrome.exe\r\n")}
	picker := newExecutablePickerWithRunner(runner)
	got, err := picker.ChooseExecutable(context.Background())
	if err != nil {
		t.Fatal(err)
	}
	if got != `C:\Program Files\Google\Chrome\Application\chrome.exe` {
		t.Fatalf("path = %q", got)
	}
	command := strings.Join(runner.args, " ")
	if runner.name != "powershell.exe" || !strings.Contains(command, "-STA") || !strings.Contains(command, "OpenFileDialog") {
		t.Fatalf("unexpected picker command: %s %v", runner.name, runner.args)
	}
}

func TestWindowsExecutablePickerRejectsInvalidSelection(t *testing.T) {
	tests := []struct {
		name string
		out  string
	}{
		{name: "relative", out: `chrome.exe`},
		{name: "not executable", out: `C:\Browser\chrome.txt`},
	}
	for _, test := range tests {
		t.Run(test.name, func(t *testing.T) {
			picker := newExecutablePickerWithRunner(&fakeRunner{out: []byte(test.out)})
			if _, err := picker.ChooseExecutable(context.Background()); err == nil {
				t.Fatal("invalid selection was accepted")
			}
		})
	}
}

func TestWindowsExecutablePickerTreatsEmptySelectionAsCanceled(t *testing.T) {
	picker := newExecutablePickerWithRunner(&fakeRunner{})
	if _, err := picker.ChooseExecutable(context.Background()); !errors.Is(err, ErrSelectionCanceled) {
		t.Fatalf("error = %v", err)
	}
}