// Fenrir console screen reader.
// Copyright (c) 2026 Storm Dragon
// SPDX-License-Identifier: GPL-3.0-or-later
//
// This program is free software: you can redistribute it and/or modify it
// under the terms of the GNU General Public License as published by the Free
// Software Foundation, either version 3 of the License, or (at your option)
// any later version.
//
// This program is distributed in the hope that it will be useful, but WITHOUT
// ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
// FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
// more details.
//
// You should have received a copy of the GNU General Public License along with
// this program. If not, see <https://www.gnu.org/licenses/gpl-3.0.html>.

package scripts

import (
	"context"
	"os"
	"path/filepath"
	"strings"
	"testing"
	"time"
)

// Exercise an unchanged real music controller, with every external action
// replaced by a private executable. Never control the contributor's player.
func TestInstalledMusicControllerWithFakePlayerctl(t *testing.T) {
	source := os.Getenv("FENRIR_MUSIC_SCRIPT")
	if source == "" {
		t.Skip("set FENRIR_MUSIC_SCRIPT to test an existing music controller")
	}
	data, err := os.ReadFile(source)
	if err != nil {
		t.Fatal(err)
	}
	root := t.TempDir()
	bin := filepath.Join(root, "bin")
	if err := os.Mkdir(bin, 0700); err != nil {
		t.Fatal(err)
	}
	write := func(path, body string) {
		t.Helper()
		if err := os.WriteFile(path, []byte(body), 0700); err != nil {
			t.Fatal(err)
		}
	}
	write(filepath.Join(bin, "id"), "#!/bin/sh\ncase \"$1\" in -un) echo Username;; *) echo 1000;; esac\n")
	write(filepath.Join(bin, "sleep"), "#!/bin/sh\nexit 0\n")
	write(filepath.Join(bin, "sudo"), "#!/bin/sh\nexit 99\n")
	write(filepath.Join(bin, "playerctl"), "#!/bin/sh\necho \"$*\" >> \"$SCRIPT_ACTION_LOG\"\ncase \"$*\" in *metadata*) echo 'Sample title by Sample artist';; esac\n")
	t.Setenv("PATH", bin)
	t.Setenv("SCRIPT_ACTION_LOG", filepath.Join(root, "actions"))
	path := filepath.Join(root, "musicplayer.sh")
	if err := os.WriteFile(path, data, 0700); err != nil {
		t.Fatal(err)
	}
	runner := New_runner(context.Background(), Limits{Workers: 1, Queue: 1, OutputBytes: 4096, Timeout: time.Second}, func(int) string { return "Username" })
	defer runner.Close()
	for _, fixture := range []struct{ key, action string }{{"z", "previous"}, {"x", "play"}, {"c", "play-pause"}, {"v", "stop"}, {"b", "next"}, {"s", "shuffle toggle"}, {"u", "metadata"}, {"minus", "volume 0.05-"}, {"equal", "volume 0.05+"}} {
		link := filepath.Join(root, "musicplayer__-__key_shift__+__key_"+fixture.key+".sh")
		if err := os.Symlink(path, link); err != nil {
			t.Fatal(err)
		}
		if err := os.WriteFile(filepath.Join(root, "actions"), nil, 0600); err != nil {
			t.Fatal(err)
		}
		runner.Submit(Invocation{Script: Script{Path: link}})
		result := receive_result(t, runner)
		actions, err := os.ReadFile(filepath.Join(root, "actions"))
		if err != nil || result.Err != nil || result.Stderr != "" || !strings.Contains(string(actions), fixture.action) {
			t.Fatal(fixture, result, string(actions), err)
		}
	}
}