<?php

namespace App\Http\Controllers;

use App\Http\Controllers\Controller;
use Illuminate\Http\Request;
use Illuminate\Http\Response;
use Illuminate\Support\Facades\DB;
use Illuminate\Support\Facades\Storage;
use Validator;
use Auth;
use App\Responses;
use App\Helper;
use Maatwebsite\Excel\Facades\Excel;
use Maatwebsite\Excel\Concerns\FromArray;
use Maatwebsite\Excel\Concerns\WithHeadings;
use Maatwebsite\Excel\Concerns\WithStyles;
use Maatwebsite\Excel\Concerns\WithCustomStartCell;
use PhpOffice\PhpSpreadsheet\Worksheet\Worksheet;

class ReportsController extends Controller
{
	public function view_report_vehicle_trips(Request $req)
	{
		$data = [
			// 'lanes' => ConfRates::getLanesActive(),
			// 'provs' => Region::listProv(),
			// 'vendors' => Users::getUsersActiveByRole(Users::ROLE_VENDOR),
			// 'truck_types' => ConfTruckTypes::listTruckTypes(ConfTruckTypes::IS_ACTIVE),
		];

		return view('menu_v1.reports.vehicle_trips', $data);
	}

	public function api_report_vehicle_trips_list(Request $req)
	{
		// Validate input
		// date in unix datetime format
		// dd($req->type);
		$rules = [
			// 'from_date' => 'required|date',
			// 'to_date' => 'required|date|after_or_equal:from_date',
			'type' => 'nullable|in:report,list', // enum "report", "list". nullable default "list"
		];

		$isValidInput = Validator::make($req->all(), $rules);
		if (!$isValidInput->passes()) {
			$apiResp = Responses::bad_input($isValidInput->messages()->first());
			return new Response($apiResp, $apiResp["meta"]["code"]);
		}


		$from_date = $req->input('from_date');
		$to_date = $req->input('to_date');
		// $from_date = 1756054800;
		// $to_date = 1756745940;

		try {
			$q = "
				WITH trips AS (
					SELECT
						t.*,
						-- mark the start of a trip when ignition=4 and previous ignition <> 4
						CASE
							WHEN ignition = 4 
								AND LAG(ignition, 1, 0) OVER (PARTITION BY vhc_id ORDER BY crt_d) <> 4
							THEN 1 ELSE 0
						END AS trip_start
					FROM t_gps_tracks t
					WHERE 
					t.latitude IS NOT NULL
					AND t.longitude IS NOT NULL
					AND t.action = 'location'
					AND t.crt_d BETWEEN ? AND ?
				)
				, numbered AS (
					SELECT
						*,
						-- assign a trip_id by cumulative sum of trip_start
						SUM(trip_start) OVER (PARTITION BY vhc_id ORDER BY crt_d) AS trip_id
					FROM trips
				)
				SELECT
					v.id,
					coalesce(max(a.trip_id), 0) numOfTrip,
					SUM(pre_milleage) AS total_milleage,
					v.name, v.nopol1 
				FROM  
					t_vehicles v
					left join numbered a on a.vhc_id = v.id
				WHERE v.dlt is null
				GROUP BY v.id
				ORDER BY v.id;
			";
			$d = [$from_date, $to_date];

			$list = DB::select($q, $d);

			// RETURN 1 - LIST
			if($req->type != 'report'){
				$apiResp = Responses::success("success list vehicles report");
				$apiResp["data"] = $list;
				return new Response($apiResp, $apiResp["meta"]["code"]);
			}

			// RETURN 2 - REPORT
			if($req->type == 'report'){
				$headings = ['Name', 'License Plate', 'Number of Trip', 'Total Mileage'];

				$export = new class($list, $headings) implements FromArray, WithHeadings {
					private $list;
					private $headings;

					public function __construct($list, $headings)
					{
						$this->list = $list;
						$this->headings = $headings;
					}

					public function array(): array
					{
						return array_map(function ($item) {
							return [
								$item->name,
								$item->nopol1,
								$item->numOfTrip,
								$item->total_milleage,
							];
						}, $this->list);
					}

					public function headings(): array
					{
						return $this->headings;
					}

					// Start table from A3
					public function startCell(): string
					{
						return 'A3';
					}

					// Add title & border styling
					public function styles(Worksheet $sheet)
					{
						$tgl0 = date('d-m-Y', $GLOBALS['from_date']);
						$tgl1 = date('d-m-Y', $GLOBALS['to_date']);

						// Title in A1
						$sheet->setCellValue('A1', 'Vehicle Trip Report $tgl0 until $tgl1');
						$sheet->mergeCells('A1:D1'); // Merge across 4 columns
						$sheet->getStyle('A1')->getFont()->setBold(true)->setSize(16);
						$sheet->getStyle('A1')->getAlignment()->setHorizontal('center');

						// Get last row
						$lastRow = $this->list->count() + 3; // 3 = heading row
						$range = "A3:D{$lastRow}";

						// Add borders
						$sheet->getStyle($range)->getBorders()->getAllBorders()
							->setBorderStyle(\PhpOffice\PhpSpreadsheet\Style\Border::BORDER_THIN);

						// Bold headings
						$sheet->getStyle('A3:D3')->getFont()->setBold(true);

						return [];
					}
				};

				return Excel::download($export, 'trip_report.xlsx');
			}
		} catch (\Exception $e) {
            $apiResp = Responses::error($e->getMessage());
            return new Response($apiResp, $apiResp["meta"]["code"]);
			// return Responses::json(Responses::SERVER_ERROR, 'An error occurred while generating the report.', (object)[]);
		}
	}


}