//go:build linux

package tools

import (
	"os"
	"testing"
)

func TestIsWayland(t *testing.T) {
	// 保存原始环境变量
	origSession := os.Getenv("XDG_SESSION_TYPE")
	origWayland := os.Getenv("WAYLAND_DISPLAY")
	defer func() {
		os.Setenv("XDG_SESSION_TYPE", origSession)
		os.Setenv("WAYLAND_DISPLAY", origWayland)
	}()

	// 测试 X11
	os.Setenv("XDG_SESSION_TYPE", "x11")
	os.Unsetenv("WAYLAND_DISPLAY")
	if isWayland() {
		t.Fatal("should not detect wayland on x11 session")
	}

	// 测试 Wayland (via XDG_SESSION_TYPE)
	os.Setenv("XDG_SESSION_TYPE", "wayland")
	os.Unsetenv("WAYLAND_DISPLAY")
	if !isWayland() {
		t.Fatal("should detect wayland via XDG_SESSION_TYPE")
	}

	// 测试 Wayland (via WAYLAND_DISPLAY)
	os.Setenv("XDG_SESSION_TYPE", "")
	os.Setenv("WAYLAND_DISPLAY", "wayland-0")
	if !isWayland() {
		t.Fatal("should detect wayland via WAYLAND_DISPLAY")
	}

	// 清除两个变量
	os.Unsetenv("XDG_SESSION_TYPE")
	os.Unsetenv("WAYLAND_DISPLAY")
	if isWayland() {
		t.Fatal("should not detect wayland without env vars")
	}
}

func TestChordToYdotool(t *testing.T) {
	cases := []struct{ in, want string }{
		{"ctrl+c", "ctrl+c"},
		{"cmd+c", "meta+c"},
		{"ctrl+alt+delete", "ctrl+alt+delete"},
		{"pageup", "pageup"},
		{"cmd+shift+t", "meta+shift+t"},
		{"enter", "enter"},
		{"space", "space"},
		{"a", "a"},
		{"f5", "f5"},
		{"escape", "esc"},
	}
	for _, c := range cases {
		mods, main, err := parseChord(c.in)
		if err != nil {
			t.Fatalf("%s: %v", c.in, err)
		}
		got, err := chordToYdotool(mods, main, c.in)
		if err != nil || got != c.want {
			t.Fatalf("%s: got %q (%v), want %q", c.in, got, err, c.want)
		}
	}
}

func TestHasBin(t *testing.T) {
	// ls 应该存在
	if !hasBin("ls") {
		t.Fatal("ls should be found")
	}
	// 不存在的命令
	if hasBin("nonexistent_binary_xyz_12345") {
		t.Fatal("nonexistent binary should not be found")
	}
}