<?php

namespace App\Http\Controllers\Reports;

use App\Exports\WorksheetExport;
use App\Http\Controllers\Controller;
use App\Models\ReferenceSector;
use App\Services\Reports\WorksheetService;
use Illuminate\Http\Request;
use Maatwebsite\Excel\Facades\Excel;
use Illuminate\Support\Facades\Validator;

class WorksheetController extends Controller
{
    protected $service;

    public function __construct(WorksheetService $service)
    {
        $this->service = $service;
    }

    public function show($inventoryYear = null, $activityYear = null, $sectorCode = null, $wsCode = null)
    {
        $categories = ReferenceSector::rowActive()->orderByRowNum()->get();
        $worksheets = $sectorCode ? $this->service->getWorksheets($sectorCode) : [];

        // Fetch worksheet data
        $wsData = $this->service->getWorksheet($sectorCode, $wsCode);

        // Check if wsData and model are valid
        if ($wsData && class_exists($wsData->model)) {
            $modelClass = $wsData->model;
            $emisiData = $this->service->getEmissionsData($modelClass, $inventoryYear, $activityYear, $wsCode);
        } else {
            $emisiData = [];
        }

        return view('reports.worksheet.index', [
            'inventoryYear' => $inventoryYear ?? date('Y'),
            'activityYear' => $activityYear,
            'sectorCode' => $sectorCode,
            'wsCode' => $wsCode,

            'categories' => $categories,
            'worksheets' => $worksheets,

            'wsData' => $wsData,
            'emisiData' => $emisiData
        ]);
    }

    public function getWorksheetsBySector(Request $request)
    {
        $code = $request->input('sector');
        $worksheets = $this->service->getWorksheets($code);

        return response()->json($worksheets);
    }

    public function export(Request $request)
    {
        // Validate and sanitize inputs
        $validator = Validator::make($request->all(), [
            'inventoryYear' => 'required|integer',
            'activityYear' => 'required|integer',
            'sectorCode' => 'required|string',
            'wsCode' => 'required|string',
        ]);

        if ($validator->fails()) {
            return redirect()->back()->withErrors($validator)->withInput();
        }

        $inventoryYear = (int) $request->input('inventoryYear');
        $activityYear = $request->input('activityYear') ? (int) $request->input('activityYear') : null;
        $sectorCode = $request->input('sectorCode');
        $wsCode = $request->input('wsCode');

        $wsData = $this->service->getWorksheet($sectorCode, $wsCode);

        if ($wsData && class_exists($wsData->model)) {
            $modelClass = $wsData->model;
            $emisiData = $this->service->getEmissionsData($modelClass, $inventoryYear, $activityYear, $wsCode);
        } else {
            $emisiData = [];
        }

        $titleExcel = 'WORKSHEET ' . strtoupper($sectorCode) . '-' . $wsCode . '-' . $activityYear . '-' . $inventoryYear;
        $wsData['titleExcel'] = $titleExcel;

        return Excel::download(new WorksheetExport($wsData, $emisiData), $titleExcel . '.xlsx');
    }
}