<?php
namespace App\Http\Controllers;

use App\Models\Accessory;
use App\Models\Actionlog;
use App\Models\Asset;
use App\Models\AssetMaintenance;
use Carbon\Carbon;
use Category;
use App\Models\Company;
use Illuminate\Support\Facades\Lang;
use Illuminate\Support\Facades\Log;
use Illuminate\Support\Facades\Response;
use Illuminate\Support\Facades\View;
use Input;
use League\Csv\Reader;
use App\Models\License;
use App\Models\Location;
use App\Models\AssetModel;
use Redirect;
use App\Models\Setting;
use App\Models\User;

class ReportsController extends Controller
{

    /**
     * Show Report for Accessories
     *
     * @return View
     */
    public function getAccessoryReport()
    {
        $accessories = Accessory::orderBy('created_at', 'DESC')->with('company')->get();

        return View::make('reports/accessories', compact('accessories'));
    }

    /**
     * Export Accessories Report as CSV
     *
     * @return file download
     */
    public function exportAccessoryReport()
    {
        $accessories = Accessory::orderBy('created_at', 'DESC')->get();

        $rows = array();
        $header = array(
            Lang::get('admin/accessories/table.title'),
            Lang::get('admin/accessories/general.accessory_category'),
            Lang::get('admin/accessories/general.total'),
            Lang::get('admin/accessories/general.remaining')
        );
        $header = array_map('trim', $header);
        $rows[] = implode($header, ', ');

        // Row per accessory
        foreach ($accessories as $accessory) {
            $row = array();
            $row[] = $accessory->accessory_name;
            $row[] = $accessory->accessory_category;
            $row[] = $accessory->total;
            $row[] = $accessory->remaining;

            $rows[] = implode($row, ',');
        }

        $csv = implode($rows, "\n");
        $response = Response::make($csv, 200);
        $response->header('Content-Type', 'text/csv');
        $response->header('Content-disposition', 'attachment;filename=report.csv');

        return $response;
    }

    /**
     * Show Asset Report
     *
     * @return View
     */
    public function getAssetsReport()
    {
        // Grab all the assets
        $assets = Asset::with(
            'model',
            'assigneduser.userLoc',
            'assetstatus',
            'defaultLoc',
            'assetlog',
            'supplier',
            'model.manufacturer',
            'company'
        )
                       ->orderBy('created_at', 'DESC')
                       ->get();

        return View::make('reports/asset', compact('assets'));
    }

    /**
     * Export Asset Report as CSV
     *
     * @return file download
     */
    public function exportAssetReport()
    {
        // Grab all the assets
        $assets = Asset::orderBy('created_at', 'DESC')->get();

        $rows = [ ];

        // Create the header row
        $header = [
            Lang::get('admin/hardware/table.asset_tag'),
            Lang::get('admin/hardware/form.manufacturer'),
            Lang::get('admin/hardware/form.model'),
            Lang::get('general.model_no'),
            Lang::get('general.name'),
            Lang::get('admin/hardware/table.serial'),
            Lang::get('general.status'),
            Lang::get('admin/hardware/table.purchase_date'),
            Lang::get('admin/hardware/table.purchase_cost'),
            Lang::get('admin/hardware/form.order'),
            Lang::get('admin/hardware/form.supplier'),
            Lang::get('admin/hardware/table.checkoutto'),
            Lang::get('admin/hardware/table.location'),
            Lang::get('general.notes'),
        ];
        $header = array_map('trim', $header);
        $rows[] = implode($header, ',');

        // Create a row per asset
        foreach ($assets as $asset) {
            $row   = [ ];
            $row[] = $asset->asset_tag;
            if ($asset->model->manufacturer) {
                $row[] = $asset->model->manufacturer->name;
            } else {
                $row[] = '';
            }
            $row[] = '"' . $asset->model->name . '"';
            $row[] = '"' . $asset->model->modelno . '"';
            $row[] = $asset->name;
            $row[] = $asset->serial;
            if ($asset->assetstatus) {
                $row[] = $asset->assetstatus->name;
            } else {
                $row[] = '';
            }
            $row[] = $asset->purchase_date;
            $row[] = '"' . number_format($asset->purchase_cost) . '"';
            if ($asset->order_number) {
                $row[] = $asset->order_number;
            } else {
                $row[] = '';
            }
            if ($asset->supplier_id) {
                $row[] = $asset->supplier->name;
            } else {
                $row[] = '';
            }

            if ($asset->assigned_to > 0) {
                $user  = User::find($asset->assigned_to);
                $row[] = $user->fullName();
            } else {
                $row[] = ''; // Empty string if unassigned
            }

            if (( $asset->assigned_to > 0 ) && ( $asset->assigneduser->location_id > 0 )) {
                $location = Location::find($asset->assigneduser->location_id);
                if ($location) {
                    $row[] = $location->name;
                } else {
                    $row[] = '';
                }
            } elseif ($asset->rtd_location_id) {
                $location = Location::find($asset->rtd_location_id);
                if ($location->name) {
                    $row[] = $location->name;
                } else {
                    $row[] = '';
                }
            } else {
                $row[] = '';  // Empty string if location is not set
            }

            if ($asset->notes) {
                $row[] = '"' . $asset->notes . '"';
            } else {
                $row[] = '';
            }

            $rows[] = implode($row, ',');
        }

        // spit out a csv
        $csv      = implode($rows, "\n");
        $response = Response::make($csv, 200);
        $response->header('Content-Type', 'text/csv');
        $response->header('Content-disposition', 'attachment;filename=report.csv');

        return $response;
    }

    /**
     * Show Depreciation Report for Assets
     *
     * @return View
     */
    public function getDeprecationReport()
    {

        // Grab all the assets
        $assets = Asset::with('model', 'assigneduser', 'assetstatus', 'defaultLoc', 'assetlog', 'company')
                       ->orderBy('created_at', 'DESC')->get();

        return View::make('reports/depreciation', compact('assets'));
    }

    /**
     * Export Depreciation Report as CSV
     *
     * @return file download
     */
    public function exportDeprecationReport()
    {

        // Grab all the assets
        $assets = Asset::with('model', 'assigneduser', 'assetstatus', 'defaultLoc', 'assetlog')
                       ->orderBy('created_at', 'DESC')->get();

        $csv = \League\Csv\Writer::createFromFileObject(new \SplTempFileObject());
        $csv->setOutputBOM(Reader::BOM_UTF16_BE);

        $rows = [ ];

        // Create the header row
        $header = [
            Lang::get('admin/hardware/table.asset_tag'),
            Lang::get('admin/hardware/table.title'),
            Lang::get('admin/hardware/table.serial'),
            Lang::get('admin/hardware/table.checkoutto'),
            Lang::get('admin/hardware/table.location'),
            Lang::get('admin/hardware/table.purchase_date'),
            Lang::get('admin/hardware/table.purchase_cost'),
            Lang::get('admin/hardware/table.book_value'),
            Lang::get('admin/hardware/table.diff')
        ];

        //we insert the CSV header
        $csv->insertOne($header);

        // Create a row per asset
        foreach ($assets as $asset) {
            $row   = [ ];
            $row[] = $asset->asset_tag;
            $row[] = $asset->name;
            $row[] = $asset->serial;

            if ($asset->assigned_to > 0) {
                $user  = User::find($asset->assigned_to);
                $row[] = $user->fullName();
            } else {
                $row[] = ''; // Empty string if unassigned
            }

            if (( $asset->assigned_to > 0 ) && ( $asset->assigneduser->location_id > 0 )) {
                $location = Location::find($asset->assigneduser->location_id);
                if ($location->city) {
                    $row[] = $location->city . ', ' . $location->state;
                } elseif ($location->name) {
                    $row[] = $location->name;
                } else {
                    $row[] = '';
                }
            } else {
                $row[] = '';  // Empty string if location is not set
            }

            if ($asset->assetloc) {
                $currency = $asset->assetloc->currency;
            } else {
                $currency = Setting::first()->default_currency;
            }

            $row[] = $asset->purchase_date;
            $row[] = $currency . number_format($asset->purchase_cost);
            $row[] = $currency . number_format($asset->getDepreciatedValue());
            $row[] = $currency . number_format(( $asset->purchase_cost - $asset->getDepreciatedValue() ));
            $csv->insertOne($row);
        }

        $csv->output('depreciation-report-' . date('Y-m-d') . '.csv');
        die;

    }

    /**
     * Show Report for Activity
     *
     * @return View
     */
    public function getActivityReport()
    {
        $log_actions = Actionlog::orderBy('created_at', 'DESC')
                                ->with('adminlog')
                                ->with('accessorylog')
                                ->with('assetlog')
                                ->with('licenselog')
                                ->with('userlog')
                                ->orderBy('created_at', 'DESC')
                                ->get();

        return View::make('reports/activity', compact('log_actions'));
    }

    /**
     * Show Report for Licenses
     *
     * @return View
     */
    public function getLicenseReport()
    {

        $licenses = License::orderBy('created_at', 'DESC')
                           ->with('company')
                           ->get();

        return View::make('reports/licenses', compact('licenses'));
    }

    /**
     * Export License Report as CSV
     *
     * @return file download
     */
    public function exportLicenseReport()
    {
        $licenses = License::orderBy('created_at', 'DESC')->get();

        $rows     = [ ];
        $header   = [
            Lang::get('admin/licenses/table.title'),
            Lang::get('admin/licenses/table.serial'),
            Lang::get('admin/licenses/form.seats'),
            Lang::get('admin/licenses/form.remaining_seats'),
            Lang::get('admin/licenses/form.expiration'),
            Lang::get('admin/licenses/form.date'),
            Lang::get('admin/licenses/form.cost')
        ];

        $header = array_map('trim', $header);
        $rows[] = implode($header, ', ');

        // Row per license
        foreach ($licenses as $license) {
            $row   = [ ];
            $row[] = $license->name;
            $row[] = $license->serial;
            $row[] = $license->seats;
            $row[] = $license->remaincount();
            $row[] = $license->expiration_date;
            $row[] = $license->purchase_date;
            $row[] = '"' . number_format($license->purchase_cost) . '"';

            $rows[] = implode($row, ',');
        }

        $csv      = implode($rows, "\n");
        $response = Response::make($csv, 200);
        $response->header('Content-Type', 'text/csv');
        $response->header('Content-disposition', 'attachment;filename=report.csv');

        return $response;
    }

    public function getCustomReport()
    {

        return View::make('reports/custom');
    }

    public function postCustom()
    {
        $assets = Asset::orderBy('created_at', 'DESC')->get();

        $rows   = [ ];
        $header = [ ];

        if (e(Input::get('asset_name')) == '1') {
            $header[] = 'Asset Name';
        }
        if (e(Input::get('asset_tag')) == '1') {
            $header[] = 'Asset Tag';
        }
        if (e(Input::get('manufacturer')) == '1') {
            $header[] = 'Manufacturer';
        }
        if (e(Input::get('model')) == '1') {
            $header[] = 'Model';
            $header[] = 'Model Number';
        }
        if (e(Input::get('category')) == '1') {
            $header[] = 'Category';
        }
        if (e(Input::get('serial')) == '1') {
            $header[] = 'Serial';
        }
        if (e(Input::get('purchase_date')) == '1') {
            $header[] = 'Purchase Date';
        }
        if (( e(Input::get('purchase_cost')) == '1' ) && ( e(Input::get('depreciation')) != '1' )) {
            $header[] = 'Purchase Cost';
        }
        if (e(Input::get('order')) == '1') {
            $header[] = 'Order Number';
        }
        if (e(Input::get('supplier')) == '1') {
            $header[] = 'Supplier';
        }
        if (e(Input::get('location')) == '1') {
            $header[] = 'Location';
        }
        if (e(Input::get('assigned_to')) == '1') {
            $header[] = 'Assigned To';
        }
        if (e(Input::get('status')) == '1') {
            $header[] = 'Status';
        }
        if (e(Input::get('warranty')) == '1') {
            $header[] = 'Warranty';
            $header[] = 'Warranty Expires';
        }
        if (e(Input::get('depreciation')) == '1') {
            $header[] = 'Purchase Cost';
            $header[] = 'Value';
            $header[] = 'Diff';
        }

        $header = array_map('trim', $header);
        $rows[] = implode($header, ',');

        foreach ($assets as $asset) {
            $row = [ ];
            if (e(Input::get('asset_name')) == '1') {
                $row[] = '"' .$asset->name . '"';
            }
            if (e(Input::get('asset_tag')) == '1') {
                $row[] = $asset->asset_tag;
            }
            if (e(Input::get('manufacturer')) == '1') {
                if ($asset->model->manufacturer) {
                    $row[] = '"' .$asset->model->manufacturer->name . '"';
                } else {
                    $row[] = '';
                }
            }
            if (e(Input::get('model')) == '1') {
                $row[] = '"' . $asset->model->name . '"';
                $row[] = '"' . $asset->model->modelno . '"';
            }
            if (e(Input::get('category')) == '1') {
                $row[] = '"' .$asset->model->category->name . '"';
            }

            if (e(Input::get('serial')) == '1') {
                $row[] = $asset->serial;
            }
            if (e(Input::get('purchase_date')) == '1') {
                $row[] = $asset->purchase_date;
            }
            if (e(Input::get('purchase_cost')) == '1' && ( e(Input::get('depreciation')) != '1' )) {
                $row[] = '"' . number_format($asset->purchase_cost) . '"';
            }
            if (e(Input::get('order')) == '1') {
                if ($asset->order_number) {
                    $row[] = $asset->order_number;
                } else {
                    $row[] = '';
                }
            }
            if (e(Input::get('supplier')) == '1') {
                if ($asset->supplier_id) {
                    $row[] = '"' .$asset->supplier->name . '"';
                } else {
                    $row[] = '';
                }
            }
            if (e(Input::get('location')) == '1') {
                $show_loc = '';
                if (( $asset->assigned_to > 0 ) && ( $asset->assigneduser->location_id !='' )) {
                    $location = Location::find($asset->assigneduser->location_id);
                    if ($location) {
                        $show_loc .= '"' .$location->name. '"';
                    } else {
                        $show_loc .= 'User location '.$asset->assigneduser->location_id.' is invalid';
                    }
                } elseif ($asset->rtd_location_id!='') {
                    $location = Location::find($asset->rtd_location_id);
                    if ($location) {
                        $show_loc .= '"' .$location->name. '"';
                    } else {
                        $show_loc .= 'Default location '.$asset->rtd_location_id.' is invalid';
                    }
                }

                $row[] = $show_loc;

            }
            if (e(Input::get('assigned_to')) == '1') {
                if ($asset->assigned_to > 0) {
                    $user  = User::find($asset->assigned_to);
                    $row[] = '"' .$user->fullName(). '"';
                } else {
                    $row[] = ''; // Empty string if unassigned
                }
            }
            if (e(Input::get('status')) == '1') {
                if (( $asset->status_id == '0' ) && ( $asset->assigned_to == '0' )) {
                    $row[] = Lang::get('general.ready_to_deploy');
                } elseif (( $asset->status_id == '' ) && ( $asset->assigned_to == '0' )) {
                    $row[] = Lang::get('general.pending');
                } elseif ($asset->assetstatus) {
                    $row[] = '"' .$asset->assetstatus->name. '"';
                } else {
                    $row[] = '';
                }
            }
            if (e(Input::get('warranty')) == '1') {
                if ($asset->warranty_months) {
                    $row[] = $asset->warranty_months;
                    $row[] = $asset->warrantee_expires();
                } else {
                    $row[] = '';
                    $row[] = '';
                }
            }
            if (e(Input::get('depreciation')) == '1') {
                $depreciation = $asset->getDepreciatedValue();
                $row[]        = '"' . number_format($asset->purchase_cost) . '"';
                $row[]        = '"' . number_format($depreciation) . '"';
                $row[]        = '"' . number_format($asset->purchase_cost - $depreciation) . '"';
            }
            $rows[] = implode($row, ',');
        }

        // spit out a csv
        if (array_filter($rows)) {
            $csv      = implode($rows, "\n");
            $response = Response::make($csv, 200);
            $response->header('Content-Type', 'text/csv');
            $response->header('Content-disposition', 'attachment;filename=report.csv');

            return $response;
        } else {
            return Redirect::to("reports/custom")
                           ->with('error', Lang::get('admin/reports/message.error'));
        }
    }

    /**
     * getImprovementsReport
     *
     * @return mixed
     * @author  Vincent Sposato <vincent.sposato@gmail.com>
     * @version v1.0
     */
    public function getAssetMaintenancesReport()
    {
        // Grab all the improvements
        $assetMaintenances = \App\Models\AssetMaintenance::with('asset', 'supplier', 'asset.company')
                                              ->orderBy('created_at', 'DESC')
                                              ->get();

        return View::make('reports/asset_maintenances', compact('assetMaintenances'));

    }

    /**
     * exportImprovementsReport
     *
     * @return \Illuminate\Http\Response
     * @author  Vincent Sposato <vincent.sposato@gmail.com>
     * @version v1.0
     */
    public function exportAssetMaintenancesReport()
    {
        // Grab all the improvements
        $assetMaintenances = AssetMaintenance::with('asset', 'supplier')
                                             ->orderBy('created_at', 'DESC')
                                             ->get();

        $rows = [ ];

        $header = [
            Lang::get('admin/asset_maintenances/table.asset_name'),
            Lang::get('admin/asset_maintenances/table.supplier_name'),
            Lang::get('admin/asset_maintenances/form.asset_maintenance_type'),
            Lang::get('admin/asset_maintenances/form.title'),
            Lang::get('admin/asset_maintenances/form.start_date'),
            Lang::get('admin/asset_maintenances/form.completion_date'),
            Lang::get('admin/asset_maintenances/form.asset_maintenance_time'),
            Lang::get('admin/asset_maintenances/form.cost')
        ];

        $header = array_map('trim', $header);
        $rows[] = implode($header, ',');

        foreach ($assetMaintenances as $assetMaintenance) {
            $row   = [ ];
            $row[] = str_replace(',', '', $assetMaintenance->asset->name);
            $row[] = str_replace(',', '', $assetMaintenance->supplier->name);
            $row[] = $assetMaintenance->improvement_type;
            $row[] = $assetMaintenance->title;
            $row[] = $assetMaintenance->start_date;
            $row[] = $assetMaintenance->completion_date;
            if (is_null($assetMaintenance->asset_maintenance_time)) {
                $improvementTime = intval(Carbon::now()
                                                 ->diffInDays(Carbon::parse($assetMaintenance->start_date)));
            } else {
                $improvementTime = intval($assetMaintenance->asset_maintenance_time);
            }
            $row[]  = $improvementTime;
            $row[]  = Lang::get('general.currency') . number_format($assetMaintenance->cost, 2);
            $rows[] = implode($row, ',');
        }

        // spit out a csv
        $csv      = implode($rows, "\n");
        $response = Response::make($csv, 200);
        $response->header('Content-Type', 'text/csv');
        $response->header('Content-disposition', 'attachment;filename=report.csv');

        return $response;
    }

    /**
     * getAssetAcceptanceReport
     *
     * @return mixed
     * @author  Vincent Sposato <vincent.sposato@gmail.com>
     * @version v1.0
     */
    public function getAssetAcceptanceReport()
    {
        $assetsForReport = Asset::notYetAccepted()->with('company')->get();

        return View::make('reports/unaccepted_assets', compact('assetsForReport'));
    }

    /**
     * exportAssetAcceptanceReport
     *
     * @return \Illuminate\Http\Response
     * @author  Vincent Sposato <vincent.sposato@gmail.com>
     * @version v1.0
     */
    public function exportAssetAcceptanceReport()
    {

        // Grab all the improvements
        $assetsForReport = Actionlog::whereIn('id', $this->getAssetsNotAcceptedYet())
                                    ->get();

        $rows = [ ];

        $header = [
            Lang::get('general.category'),
            Lang::get('admin/hardware/form.model'),
            Lang::get('admin/hardware/form.name'),
            Lang::get('admin/hardware/table.asset_tag'),
            Lang::get('admin/hardware/table.checkoutto'),
        ];

        $header = array_map('trim', $header);
        $rows[] = implode($header, ',');

        foreach ($assetsForReport as $assetItem) {
            $row    = [ ];
            $row[]  = str_replace(',', '', $assetItem->assetlog->model->category->name);
            $row[]  = str_replace(',', '', $assetItem->assetlog->model->name);
            $row[]  = str_replace(',', '', $assetItem->assetlog->showAssetName());
            $row[]  = str_replace(',', '', $assetItem->assetlog->asset_tag);
            $row[]  = str_replace(',', '', $assetItem->assetlog->assigneduser->fullName());
            $rows[] = implode($row, ',');
        }

        // spit out a csv
        $csv      = implode($rows, "\n");
        $response = Response::make($csv, 200);
        $response->header('Content-Type', 'text/csv');
        $response->header('Content-disposition', 'attachment;filename=report.csv');

        return $response;

    }

    /**
     * getCheckedOutAssetsRequiringAcceptance
     *
     * @param $modelsInCategoriesThatRequireAcceptance
     *
     * @return array
     * @author  Vincent Sposato <vincent.sposato@gmail.com>
     * @version v1.0
     */
    protected function getCheckedOutAssetsRequiringAcceptance($modelsInCategoriesThatRequireAcceptance)
    {
        $assets = Asset::deployed()
                        ->inModelList($modelsInCategoriesThatRequireAcceptance)
                        ->select('id')
                        ->get()
                        ->toArray();

        return array_pluck($assets, 'id');
    }

    /**
     * getModelsInCategoriesThatRequireAcceptance
     *
     * @param $assetCategoriesRequiringAcceptance
     *
     * @return array
     * @author  Vincent Sposato <vincent.sposato@gmail.com>
     * @version v1.0
     */
    protected function getModelsInCategoriesThatRequireAcceptance($assetCategoriesRequiringAcceptance)
    {

        return array_pluck(Model::inCategory($assetCategoriesRequiringAcceptance)
                                 ->select('id')
                                 ->get()
                                 ->toArray(), 'id');
    }

    /**
     * getCategoriesThatRequireAcceptance
     *
     * @return array
     * @author  Vincent Sposato <vincent.sposato@gmail.com>
     * @version v1.0
     */
    protected function getCategoriesThatRequireAcceptance()
    {

        return array_pluck(Category::requiresAcceptance()
                                    ->select('id')
                                    ->get()
                                    ->toArray(), 'id');
    }

    /**
     * getAssetsCheckedOutRequiringAcceptance
     *
     * @return array
     * @author  Vincent Sposato <vincent.sposato@gmail.com>
     * @version v1.0
     */
    protected function getAssetsCheckedOutRequiringAcceptance()
    {

        return $this->getCheckedOutAssetsRequiringAcceptance(
            $this->getModelsInCategoriesThatRequireAcceptance($this->getCategoriesThatRequireAcceptance())
        );
    }

    /**
     * getAssetsNotAcceptedYet
     *
     * @return array
     * @author  Vincent Sposato <vincent.sposato@gmail.com>
     * @version v1.0
     */
    protected function getAssetsNotAcceptedYet()
    {
        return Asset::unaccepted();
    }
}