<?php

namespace App\Http\Controllers;

use Illuminate\Http\Request;
use Illuminate\Support\Str;
use App\Http\Controllers\Controller;
use App\User;
use App\MyFile;
use App\Setting;
use App\Department;
use App\SharedFile;
use Session;
use Auth;

class MyFilesController extends Controller
{
	/**
     * Create a new controller instance.
     *
     * @return void
     */
    public function __construct()
    {
        $this->middleware('auth:web');
    }

    public function search(Request $request, $directory=null)
    {
		$input = $request->all();
    	$request->session()->put('search_val', $input['search']);
		if($directory != null)
		{
			return redirect()->route('my-files', $directory);
		}
		return redirect()->route('my-files');
	}

    public function index($directory=null)
    {
		$setting = Setting::first();
		$parent_id = 0;
		$parent_directories = [];
		$last = null;
		if($directory !== null)
		{
			$parent_id = base64_decode($directory);
			$parent_directories = MyFile::getPathArray($parent_id);
			$last = array_key_last($parent_directories);
		}
		$directories=Myfile::where('user_id', auth()->user()->id)->where('parent_id', $parent_id)->where('is_temp', 0)->orderBy('id', 'desc')->get();
		return view('my-files.index', compact('setting', 'directories', 'parent_id', 'parent_directories', 'last'));
	}
	
	public function create($directory=null)
	{
		if($directory)
		{
			$directory_id = base64_decode($directory);
			$directory = MyFile::find($directory_id);
			
			if($directory->user_id != auth()->user()->id)
			{
				$shared = SharedFile::where('shared_by', $directory->user_id)->where('permission', 2)->where(function($q){
					$q->orWhere('user_id', auth()->user()->id)
						->orWhere('department_id', auth()->user()->department_id);
				})->get();
				// dd($shared);
				// return response()->json(['result' => 'success', 'data' => $shared->count()]);
				// return response()->json(['result' => 'success', 'data' => $shared->first()->id]);

				if(count($shared)>0)
				{
					$flag=false;
					// return response()->json(['result' => 'success', 'data' => $shared->first()->file_id]);
					foreach($shared as $sh)
					{
						if(preg_match("/;".$sh->file_id.";/", $directory->path_to_root . ";".$directory->id.";"))
						{
							$flag = true;
							break;
						}
					}
					// return response()->json(['result' => 'success', 'data' => $directory->path_to_root . $directory->id.";"]);
					if($flag==true)
					{
						$view = view('my-files.create')->with('directory_id', $directory->id)->with('flag', $flag)->render();
        				return response()->json(['result' => 'success', 'data' => $view]);
					}
				}
				return response()->json(['result'=>'error', 'data'=> __('We are having some problem. Please try later.')]);
			}
		}
		
		$directoryid = ($directory) ? $directory->id : 0;
		$view = view('my-files.create')->with('directory_id', $directoryid)->render();
        return response()->json(['result' => 'success', 'data' => $view]);
	}

	public function store(Request $request)
    {
        $input = $request->all();
		if(isset($input['directory_name']) && $input['directory_name'] !== null)
		{
			$directory_input['_token']=$input['_token'];
			$directory_input['name']=$input['directory_name'];
			$directory_input['description']=$input['description'] ?? '';
			$directory_input['year'] = date('Y');
			$directory_input['is_temp'] = 0;
			$directory_input['file_type'] = 0;
			if($input['flag'])
			{
				$directory_input['user_id'] = MyFile::where('id', $input['parent_id'])->first()->user_id;
				$directory_input['shared_user_id'] = auth()->user()->id;
			}
			else
				$directory_input['user_id'] = auth()->user()->id;

			if($input['parent_id'] !== null)
			{
				// if directory_id is not belongs to auth()->user()->id  ???
				$directory_input['parent_id'] = $input['parent_id'];
				$directory_input['path_to_root'] = MyFile::getPathToRootString($input['parent_id']);
			}
			$directory_save=MyFile::create($directory_input);
			if($directory_save)
			{
				$input['parent_id'] = $directory_save['id'];
				// $directory_path = directory_path($directory_save['id'], '');
			}
		}
		elseif($input['parent_id'] == null)
		{
			$input['parent_id'] = 0;
		}

		$input['user_id']=auth()->user()->id;
		$input['path_to_root'] = MyFile::getPathToRootString($input['parent_id']);
		$input['shared_user_id'] = null;
		if($input['flag'])
		{
			$input['user_id'] = MyFile::where('id', $input['parent_id'])->first()->user_id;
			$input['shared_user_id'] = auth()->user()->id;
		}
		
		// dd($input);
		if(isset($input['file_ids']) && $input['file_ids']!='')
		{
			$file_ids_array = explode(';',$input['file_ids']);
			if(is_array($file_ids_array) && !empty($file_ids_array)){		
				foreach($file_ids_array as $key => $file_id){
					$file = MyFile::where('id',$file_id)->first();
					if(isset($file))
					{
						MyFile::find($file->id)->update(['is_temp'=>0, 'user_id'=>$input['user_id'], 'shared_user_id'=>$input['shared_user_id'], 'path_to_root'=>$input['path_to_root'], 'description' =>$input['description'], 'parent_id'=>$input['parent_id']]);
					}
				}
			}
		}
		Session::flash('success_message', __('My files has been added successfully'));
		return redirect()->back();
    }

    public function storeFiles(Request $request)
    {
        $input = $request->all();
		$file_name='';

		// $setting = Setting::first();
		$place_of_the_file='my-files/'.auth()->user()->id;
		 
		$input['place_of_the_file']= $place_of_the_file;
		$input['user_id']=auth()->user()->id;
		$input['file_type'] = 1;
		$input['year'] = date('Y');
		
		if(isset($input['files']) && is_array($input['files']) && !empty($input['files']))
		{		
			foreach($input['files'] as $key => $file)
			{
				$file = $input['files'];
				if(isset($file) && $file->getError() == 0 && $file->getClientOriginalName() != "")
				{
					$input['file_size'] = $file_size = ($file->getClientSize() / 1024)/1024;
					$user = User::where('id', auth()->user()->id)->first();
					$user_new_disk_uses = $user->user_disk_uses > 0 ? $user->user_disk_uses + $file_size : $file_size;
					if($user_new_disk_uses < $user->user_disk_quota)
					{
						User::where('id', auth()->user()->id)->update(['user_disk_uses'=> $user_new_disk_uses]);
						$input['name_org'] = $file->getClientOriginalName();
						$input['name'] = $file_name = md5($file->getClientOriginalName() . microtime()) .'.'. $file->getClientOriginalExtension();
						$saved_data=MyFile::create($input);
						if($saved_data)
						{
							$file->move(public_path($place_of_the_file), $file_name);
							$files_val[$key]['data']= $saved_data;
							$files_val[$key]['type']= 'success';
							$files_val[$key]['message']= __('File uploaded successfully');

							if(!in_array($file->getClientOriginalExtension(), ['pdf', 'zip', 'tar', 'rar', 'exe', 'gz']))
							{
								shell_exec('export HOME=/tmp && /usr/bin/libreoffice --headless --convert-to pdf ' . public_path($place_of_the_file) . '/' . $file_name .  ' --outdir ' . public_path($place_of_the_file));
							}
						}
					}
					else
					{
						$files_val[$key]['data']= [];
						$files_val[$key]['type']= 'error';
						$files_val[$key]['message']= __('Exceed Disk Quota');
					}
				}
			}
		}
		else
		{
			$file = $input['files'];
			$key = 0;
			if(isset($file) && $file->getError() == 0 && $file->getClientOriginalName() != "")
			{
				$input['file_size'] = $file_size = ($file->getClientSize() / 1024)/1024;
				$user = User::where('id', auth()->user()->id)->first();
				$user_new_disk_uses = $user->user_disk_uses > 0 ? $user->user_disk_uses + $file_size : $file_size;
				if($user_new_disk_uses < $user->user_disk_quota)
				{
					User::where('id', auth()->user()->id)->update(['user_disk_uses'=> $user_new_disk_uses]);
					$input['name_org'] = $file->getClientOriginalName();
					$input['name'] = $file_name = md5($file->getClientOriginalName() . microtime()) .'.'. $file->getClientOriginalExtension();
					$saved_data=MyFile::create($input);
					if($saved_data)
					{
						$file->move(public_path($place_of_the_file), $file_name);
						$files_val[$key]['data']= $saved_data;
						$files_val[$key]['type']= 'success';
						$files_val[$key]['message']= __('File uploaded successfully');

						if(!in_array($file->getClientOriginalExtension(), ['pdf', 'zip', 'tar', 'rar', 'exe', 'gz']))
						{
							shell_exec('export HOME=/tmp && /usr/bin/libreoffice --headless --convert-to pdf ' . public_path($place_of_the_file) . '/' . $file_name .  ' --outdir ' . public_path($place_of_the_file));
						}
					}
				}
				else
				{
					$files_val[$key]['data']= [];
					$files_val[$key]['type']= 'error';
					$files_val[$key]['message']= __('Exceed Disk Quota');
				}
			}
		}
		return response()->json($files_val);
	}

	public function edit($directory_enc)
	{
		if($directory_enc)
		{
			$directory = MyFile::find(base64_decode($directory_enc));
			if($directory)
			{
				if($directory->user_id != auth()->user()->id)
					return response()->json(['result'=>'error', 'data'=> __('We are having some problem. Please try later.')]);

				$view = view('my-files.edit')->with('directory', $directory)->render();
        		return response()->json(['result' => 'success', 'data' => $view]);
			}
		}

        return response()->json(['result' => 'false', 'data' =>  __('We are having some problem. Please try later.')]);
	}

	public function update()
	{
		$input = request()->all();
		if(!isset($input['directory_id']))
		{
			Session::flash('success_message', __('My files has been added successfully'));
			return redirect(route('my-files'));
		}

		$directory = MyFile::find(base64_decode($input['directory_id']));
		if($directory)
		{
			$directory->description = $input['description'];

			if($directory->file_type == 0)
				$directory->name = $input['directory_name'];
			else if($directory->file_type == 1)
				$directory->name_org = $input['directory_name'];

			$directory->save();
		}

		Session::flash('success_message', __('My files has been added successfully'));
		return redirect()->back();
	}
	
	public function delete($id)
	{
		$directory = MyFile::find(base64_decode($id));
		if($directory)
		{
			if($directory->file_type == 1)
			{
				$directory->delete();
				unlink(public_path($directory->place_of_the_file.'/'.$directory->name));
			}
			else
			{
				$folders = MyFile::where('is_temp', 0)->where('user_id', auth()->user()->id)->where('path_to_root', 'LIKE', '%;'.$directory->id.';%')->orderByDesc('path_to_root')->get();
				foreach($folders as $folder)
				{
					if(Str::contains($folder->path_to_root, ";".$directory->id.";"))
					{
						$folder->delete();
						if($folder->file_type == 1)
							unlink(public_path($folder->place_of_the_file.'/'.$folder->name));
					}
				}
				$directory->delete();
				SharedFile::deleteRelatedShares($directory);
			}
		}
		Session::flash('success_message', __('Directory has been deleted successfully'));
		return redirect()->route('my-files', base64_encode($directory->parent_id));
	}

	public function view($id)
    {
        $id=base64_decode($id);
		$file = MyFile::find($id);
		if($file):
			return view('my-files.view', compact('file'));
		else:
			Session::flash('error_message', __('We are having some problem. Please try later.'));
			return redirect()->back();
		endif;
	}
	
	public function download($id)
	{
		$id=base64_decode($id);
		$file = MyFile::find($id);
		
		if($file && $file->file_type == 1)
			if(file_exists(public_path($file->getPathOrg())))
				return response()->download(public_path($file->getPathOrg()), $file->getReadableName());

		return back();
	}


	// File Share Methods

	public function indexShare($directory=null)
	{
		$directory = MyFile::where('user_id', auth()->user()->id)->where('id', base64_decode($directory))->first();
		if($directory)
		{	
			$shared_files = SharedFile::where('shared_by', auth()->user()->id)->where('file_id', $directory->id)->get();
			return  view('my-files.share-index')->with('directory', $directory)->with('shared_files', $shared_files);
		}

		Session::flash('error_message', __('We are having some problem. Please try later.'));
		return redirect()->back();
	}
	
	public function createShare($directory)
	{
		if(isset($directory))
		{
			$directory = MyFile::where('user_id', auth()->user()->id)->where('id', base64_decode($directory))->first();
			if($directory->user_id != auth()->user()->id)
				return response()->json(['result'=>'error', 'data'=> __('We are having some problem. Please try later.')]);
		}

		$users = User::where('status', 1)->where('working_status', 1)->get(['id', 'first_name', 'last_name']);
		$departments = Department::where('status', 1)->get(['id', 'name']);
		$view = view('my-files.share')
				->with('directory', $directory)
				->with('users', $users)
				->with('departments', $departments)
				->render();
        return response()->json(['result' => 'success', 'data' => $view]);
	}

    public function share(Request $request)
    {
		$input = $request->all();
		$file = MyFile::where('user_id', auth()->user()->id)->where('id', $input['id'])->first();
		if($file)
		{
			$input['parent_id'] = $file->parent_id;
			$input['shared_by'] = auth()->user()->id;
			$input['file_type'] = $file->file_type;
			$input['file_id'] = $file->id;
			$input['path_to_root'] = $file->path_to_root;

			$departments  = (isset($input['departments'])) ? Department::whereIn('id', $input['departments'])->get() : [];
			$exist_department_ids = [];


			foreach($departments as $department)
			{
				if(SharedFile::validShare($input['file_id'], $department->id, 'department', $input['permission']))
				{
					$input['department_id'] = $department->id;
					$saved_data=SharedFile::create($input);
				}
				$exist_department_ids[]=$department->id;
			}

			// $exist_department_ids[]=SharedFile::where('file_id', $file->id)->where('permission', $input['permission'])->whereNotNull('department_id')->pluck('department_id');

			// $users = (isset($input['users'])) ? User::whereIn('id', $input['users'])->whereNotIn('department_id', $exist_department_ids)->get() : [];
			$users = (isset($input['users'])) ? User::whereIn('id', $input['users'])->get() : [];
			foreach($users as $user)
			{
				// if(!SharedFile::where('permission', $input['permission'])->where('user_id', $user->id)->where('file_id', $file->id)->exists())
				if(SharedFile::validShare($input['file_id'], $user->id, 'user', $input['permission']))
				{
					$input['user_id'] = $user->id;
					$saved_data=SharedFile::create($input);
				}
			}

			if(isset($saved_data))
			{
				Session::flash('success_message', __('My files has been added successfully'));
				return redirect()->back();
			}
				
		}
		
		// Session::flash('error_message', __('We are having some problem. Please try later.'));
		return redirect()->back();
	}
	
	public function deleteShare($share_id)
	{
		$shareid = base64_decode($share_id);
		$shared = SharedFile::find($shareid);

		if($shared)
			$shared->delete();

		Session::flash('success_message', __('My files has been added successfully'));
		return redirect()->back();
	}

	// =================================

	public function sharedFiles($share_id, $directory=null)
    {
		$parent_id = null;
		$directories = [];
		$shared_files = [];
		$permission = '';
		$write = false;
		$sharedby='';
		$prev_url = '';
		$share_id = base64_decode($share_id);
		if($directory !== null)
		{
			$parent=MyFile::where('id', base64_decode($directory))->first();
			if($parent)
			{
				$shared = SharedFile::where('file_id', $parent->id)
					->where(function($q){
						$q->where('user_id', auth()->user()->id)
							->orWhere('department_id', auth()->user()->department_id);
					})
					->first();


				// dd($share_id . " -- " . 'null'. " -- ". $parent->id);
				if($shared)
				{
					$directories = MyFile::where('parent_id', $parent->id)->get();
					$write = ($shared->permission == 'Write') ? true : false;
					$permission = __($shared->permission);
					$sharedby = $shared->sharedby->getFullName();
					$share_id = (($share_id == 0) && ($shared->id !=0)) ?  $shared->file_id : $share_id;
				}
				else
				{
					if(preg_match("/;".$share_id.";/", $parent->path_to_root))
					{
						$shared = SharedFile::where('file_id', $share_id)->first();
							// dd($shared);
						if($shared)
						{
							$directories = MyFile::where('parent_id', $parent->id)->get();
							$write = ($shared->permission == 'Write') ? true : false;
							$permission = __($shared->permission);
							$sharedby = $shared->sharedby->getFullName();
						}
					}
					else
					{
						$shared_files = SharedFile::where('show_home', 1)
								->where(function($q){
									$q->where('user_id', auth()->user()->id)
										->orWhere('department_id', auth()->user()->department_id);
								})
								->orderBy('id', 'desc')
								->get();
						$prev_url = route('shared-files', ['share_id'=>base64_encode($share_id), 'directory'=>null]);
					}
				}
				$prev_url = route('shared-files', ['shared_id'=>base64_encode($share_id), 'directory'=>base64_encode($parent->parent_id)]);
			}
			else
			{
				$shared_files = SharedFile::where('show_home', 1)
						->where(function($q){
							$q->where('user_id', auth()->user()->id)
								->orWhere('department_id', auth()->user()->department_id);
						})
						->orderBy('id', 'desc')
						->get();
				$prev_url = route('shared-files', ['share_id'=>base64_encode($share_id), 'directory'=>null]);
			}
		}
		else
		{
			$shared_files = SharedFile::where('show_home', 1)
					->where(function($q){
						$q->where('user_id', auth()->user()->id)
							->orWhere('department_id', auth()->user()->department_id);
					})
					->orderBy('id', 'desc')
					->get();
			$prev_url = route('shared-files', ['share_id'=>base64_encode($share_id), 'directory'=>null]);
		}

		$setting = Setting::first();
		$parent_id = (isset($parent)) ? $parent->id : null;

		// dd($parent_id);
		// $users = User::getUserRole()->get();
		// $departments = Department::where('status', 1)->orderBy('id', 'asc')->get();
		return view('my-files.shared-files', compact('shared_files', 'directories', 'parent_id', 'prev_url', 'sharedby', 'permission', 'share_id', 'write', 'setting'));
	}

	public function sharedView($directory)
	{
		$directory = MyFile::find(base64_decode($directory));
		if($directory)
		{
			$found = false;
			$shares = SharedFile::where(function($q){$q->orWhere('department_id', auth()->user()->department_id)->orWhere('user_id', auth()->user()->id);})->where('show_home', 1)->get(['id', 'file_id']);
			foreach($shares as $share)
			{
                if(preg_match("/;".$share->file_id.";/", $directory->path_to_root) || ($share->file_id ==$directory->id))
                    $found=true;
			}

			if($found)
				return redirect(route('view-my-files', base64_encode($directory->id)));
				// return $this->view(base64_encode($directory->id));
		}
		return back();
	}
	
	public function xxdeleteFiles(Request $request)
    {
        $input = $request->all();
		$file = MyFile::findOrFail($input['id']);
		$delete_file = $file->delete();
		if($delete_file):
			SharedFile::where('file_id', $file->id)->delete();
			$user = User::where('id',Auth::user()->id)->first();
			$user_new_disk_uses = $user->user_disk_uses + $file->file_size;
			User::where('id',Auth::user()->id)->update(['user_disk_uses'=> $user_new_disk_uses]);
			unlink(public_path($file->place_of_the_files.'/'.$file->files_name));
		endif;
		echo __('Deleted File ').$file->files_name;
	}

	public function xxdeleteDirectory($id)
    {
        $id=base64_decode($id);
        $directory = Directory::findOrFail($id);
		foreach(Directory::where('parent_id', $id)->get() as $related_directory)
		{
			foreach(MyFile::where('directory_id', $related_directory->id)->get() as $myfile)
			{
				$file = MyFile::findOrFail($myfile->id);
				$file->delete();
				SharedFile::where('file_id', $myfile->id)->delete();
				unlink(public_path($file->place_of_the_files.'/'.$file->files_name));
			}
			$child_directory = Directory::findOrFail($related_directory->id);
			$child_directory->delete();
			SharedFile::where('directory_id', $related_directory->id)->delete();
		}
        $delete_directory = $directory->delete();
		SharedFile::where('directory_id', $directory->id)->delete();
		if($delete_directory):
			Session::flash('success_message', __('Directory has been deleted successfully'));
			return redirect()->route('my-files');
		else:
			Session::flash('error_message', __('We are having some problem. Please try later.'));
			return redirect()->route('my-files');
		endif;
    }

    public function xxdelete($id)
    {
        $id=base64_decode($id);
		$file = MyFile::findOrFail($id);
		$delete_file = $file->delete();
		if($delete_file):
			SharedFile::where('file_id', $file->id)->delete();
			unlink(public_path($file->place_of_the_files.'/'.$file->files_name));
			Session::flash('success_message', __('File has been deleted successfully'));
			return redirect()->back();
		else:
			Session::flash('error_message', __('We are having some problem. Please try later.'));
			return redirect()->back();
		endif;
    }

	public function xxindex($directory=null)
    {
		$setting = Setting::first();
		$parent_id = 0;
		$parent_directories = [];
		if($directory !== null)
		{
			$parent_id = base64_decode($directory);
			$parent_directories = Directory::getPathArray($parent_id);
			$last = array_key_last($parent_directories);
		}
		$directories=Directory::where('user_id', Auth::user()->id)->orderBy('id', 'desc')->get();
		$prev_url = url()->previous();
		
		$users = User::getUserRole()->get();
		$departments = Department::where('status', 1)->orderBy('id', 'asc')->get();
		return view('my-files.index', compact('setting', 'directories', 'parent_id', 'parent_directories', 'last', 'prev_url', 'users', 'departments'));
	}
	
	public function xxsharedFiles($directory=null)
    {
		$parent_id = 0;
		$parent_directory = [];
		if($directory !== null)
		{
			$parent_id = base64_decode($directory);
			$parent_directory=Directory::where('id', $parent_id)->first();
		}
		$shared_files=SharedFile::where('parent_id', 0)->where(function($q){$q->where('user_id', Auth::user()->id)->orWhere('department_id', Auth::user()->department_id);})->orderBy('id', 'desc');
		$shared_file_parent_ids = $shared_files->pluck('directory_id');
		$shared_directories = SharedFile::where('parent_id', '!=', 0)->where(function($q){$q->where('user_id', Auth::user()->id)->orWhere('department_id', Auth::user()->department_id);})->orderBy('id', 'desc')->get();
		$extra = [];
		// dd($shared_directories);
		foreach($shared_directories as $sh)
		{
			if($sh->type == "D")
			{
				$path_array = Directory::getPathToRoot($sh->directory_id);
				$exist = false;
				foreach($shared_file_parent_ids as $shf)
				{
					if(in_array($shf, $path_array))
					{
						$exist = true;	
						break;
					}
				}
				if($exist == false)
					$extra[]=$sh->id;
			}

			if($sh->type == "F")
			{
				$path_array = MyFile::getPathToRoot($sh->parent_id, true);
				$exist = false;
				foreach($shared_file_parent_ids as $shf)
				{
					if(in_array($shf, $path_array))
					{
						$exist = true;	
						break;
					}
				}
				if($exist == false)
					$extra[]=$sh->id;
			}
		}

		$shared_files = $shared_files->get();
		if(count($extra)>0)
			$shared_files = $shared_files->merge(SharedFile::whereIn('id', $extra)->get());

		$setting = Setting::first();
		$prev_url = url()->previous();
		
		$users = User::getUserRole()->get();
		$departments = Department::where('status', 1)->orderBy('id', 'asc')->get();
		return view('my-files.shared-files', compact('setting', 'shared_files', 'parent_id', 'parent_directory', 'prev_url', 'users', 'departments'));
    }

}