<?php

declare(strict_types=1);

/**
 * SPDX-FileCopyrightText: 2026 Lukas Schaefer
 * SPDX-License-Identifier: AGPL-3.0-or-later
 */

namespace OCA\Shortcuts\Tests\Unit\Service;

use OCA\Shortcuts\Exception\ConflictException;
use OCA\Shortcuts\Exception\InvalidPathException;
use OCA\Shortcuts\Service\ShortcutService;
use OCP\Constants;
use OCP\Files\File;
use OCP\Files\Folder;
use OCP\Files\IRootFolder;
use OCP\IUser;
use PHPUnit\Framework\MockObject\MockObject;
use PHPUnit\Framework\TestCase;

final class ShortcutServiceTest extends TestCase {
	private IRootFolder&MockObject $rootFolder;
	private Folder&MockObject $userFolder;
	private IUser&MockObject $user;
	private ShortcutService $service;

	protected function setUp(): void {
		parent::setUp();
		$this->rootFolder = $this->createMock(IRootFolder::class);
		$this->userFolder = $this->createMock(Folder::class);
		$this->user = $this->createMock(IUser::class);
		$this->user->method('getUID')->willReturn('admin');
		$this->rootFolder->method('getUserFolder')->with('admin')->willReturn($this->userFolder);
		$this->service = new ShortcutService($this->rootFolder);
	}

	public function testCreateWritesBareFileId(): void {
		$target = $this->createMock(File::class);
		$target->method('getId')->willReturn(320);
		$target->method('getName')->willReturn('main.tex');
		$target->method('getPermissions')->willReturn(Constants::PERMISSION_ALL);
		$target->method('getMimeType')->willReturn('application/x-tex');

		$destination = $this->createMock(Folder::class);
		$destination->method('getPermissions')->willReturn(Constants::PERMISSION_ALL);
		$destination->method('nodeExists')->with('main.tex.nextcloudshortcut')->willReturn(false);

		$created = $this->createMock(File::class);
		$created->method('getId')->willReturn(999);
		$created->method('getName')->willReturn('main.tex.nextcloudshortcut');
		$created->method('getPath')->willReturn('/admin/files/test/main.tex.nextcloudshortcut');

		$destination->expects($this->once())
			->method('newFile')
			->with('main.tex.nextcloudshortcut', '320')
			->willReturn($created);

		$this->userFolder->method('getFirstNodeById')->with(320)->willReturn($target);
		$this->userFolder->method('get')->with('/test')->willReturn($destination);
		$this->userFolder->method('getRelativePath')
			->with('/admin/files/test/main.tex.nextcloudshortcut')
			->willReturn('/test/main.tex.nextcloudshortcut');

		$result = $this->service->create($this->user, 320, '/test');
		$this->assertSame(999, $result['fileId']);
		$this->assertSame(320, $result['targetFileId']);
		$this->assertSame('file', $result['targetType']);
		$this->assertSame('main.tex.nextcloudshortcut', $result['name']);
	}

	public function testCreateConflict(): void {
		$target = $this->createMock(File::class);
		$target->method('getId')->willReturn(1);
		$target->method('getName')->willReturn('a.txt');
		$target->method('getPermissions')->willReturn(Constants::PERMISSION_ALL);
		$target->method('getMimeType')->willReturn('text/plain');

		$this->userFolder->method('getFirstNodeById')->willReturn($target);
		$this->userFolder->method('get')->with('/')->willReturn($this->userFolder);
		$this->userFolder->method('getPermissions')->willReturn(Constants::PERMISSION_ALL);
		$this->userFolder->method('nodeExists')->with('a.txt.nextcloudshortcut')->willReturn(true);

		$this->expectException(ConflictException::class);
		$this->service->create($this->user, 1, '/');
	}

	public function testResolveFile(): void {
		$shortcut = $this->createMock(File::class);
		$shortcut->method('getId')->willReturn(50);
		$shortcut->method('getName')->willReturn('main.tex.nextcloudshortcut');
		$shortcut->method('getPermissions')->willReturn(Constants::PERMISSION_ALL);
		$shortcut->method('getMimeType')->willReturn('application/x-nextcloud-shortcut');
		$shortcut->method('getContent')->willReturn("320\n");

		$target = $this->createMock(File::class);
		$target->method('getId')->willReturn(320);
		$target->method('getName')->willReturn('main.tex');
		$target->method('getPermissions')->willReturn(Constants::PERMISSION_ALL);
		$target->method('getMimeType')->willReturn('application/x-tex');
		$target->method('getPath')->willReturn('/admin/files/docs/main.tex');

		$parent = $this->createMock(Folder::class);
		$parent->method('getPath')->willReturn('/admin/files/docs');
		$target->method('getParent')->willReturn($parent);

		$this->userFolder->method('getFirstNodeById')->willReturnMap([
			[50, $shortcut],
			[320, $target],
		]);
		$this->userFolder->method('getRelativePath')->willReturnMap([
			['/admin/files/docs/main.tex', '/docs/main.tex'],
			['/admin/files/docs', '/docs'],
		]);

		$result = $this->service->resolve($this->user, 50);
		$this->assertSame(320, $result['targetFileId']);
		$this->assertSame('file', $result['targetType']);
		$this->assertSame('/docs/main.tex', $result['path']);
		$this->assertSame('/docs', $result['dirname']);
	}

	public function testResolveInvalidContents(): void {
		$shortcut = $this->createMock(File::class);
		$shortcut->method('getName')->willReturn('bad.nextcloudshortcut');
		$shortcut->method('getPermissions')->willReturn(Constants::PERMISSION_ALL);
		$shortcut->method('getMimeType')->willReturn('application/x-nextcloud-shortcut');
		$shortcut->method('getContent')->willReturn('not-an-id');

		$this->userFolder->method('getFirstNodeById')->willReturn($shortcut);

		$this->expectException(InvalidPathException::class);
		$this->service->resolve($this->user, 1);
	}

	public function testCreateCanonicalizesShortcutTarget(): void {
		$innerShortcut = $this->createMock(File::class);
		$innerShortcut->method('getId')->willReturn(10);
		$innerShortcut->method('getName')->willReturn('a.nextcloudshortcut');
		$innerShortcut->method('getPermissions')->willReturn(Constants::PERMISSION_ALL);
		$innerShortcut->method('getMimeType')->willReturn('application/x-nextcloud-shortcut');
		$innerShortcut->method('getContent')->willReturn('320');

		$realTarget = $this->createMock(File::class);
		$realTarget->method('getId')->willReturn(320);
		$realTarget->method('getName')->willReturn('main.tex');
		$realTarget->method('getPermissions')->willReturn(Constants::PERMISSION_ALL);
		$realTarget->method('getMimeType')->willReturn('application/x-tex');

		$created = $this->createMock(File::class);
		$created->method('getId')->willReturn(11);
		$created->method('getName')->willReturn('main.tex.nextcloudshortcut');
		$created->method('getPath')->willReturn('/admin/files/main.tex.nextcloudshortcut');

		$this->userFolder->method('getFirstNodeById')->willReturnMap([
			[10, $innerShortcut],
			[320, $realTarget],
		]);
		$this->userFolder->method('get')->with('/')->willReturn($this->userFolder);
		$this->userFolder->method('getPermissions')->willReturn(Constants::PERMISSION_ALL);
		$this->userFolder->method('nodeExists')->with('main.tex.nextcloudshortcut')->willReturn(false);
		$this->userFolder->expects($this->once())
			->method('newFile')
			->with('main.tex.nextcloudshortcut', '320')
			->willReturn($created);
		$this->userFolder->method('getRelativePath')->willReturn('/main.tex.nextcloudshortcut');

		$result = $this->service->create($this->user, 10, '/');
		$this->assertSame(320, $result['targetFileId']);
		$this->assertSame(11, $result['fileId']);
	}
}