<?php

namespace Modules\Business\App\Http\Controllers;

use App\Models\Product;
use App\Models\PaymentType;
use Illuminate\Http\Request;
use App\Traits\DateFilterTrait;
use App\Http\Controllers\Controller;
use App\Services\PdfService;
use App\Traits\DateRangeTrait;
use Illuminate\Pagination\LengthAwarePaginator;
use Maatwebsite\Excel\Facades\Excel;
use Modules\Business\App\Exports\ExportBalanceSheet;

class AcnooBalanceSheetController extends Controller
{
    use DateFilterTrait, DateRangeTrait;

    public function index(Request $request)
    {
        $businessId = auth()->user()->business_id;
        $duration   = $request->custom_days ? : 'today';
        $fromDate   = $request->from_date;
        $toDate     = $request->to_date;
        $perPage    = $request->per_page ?? 20;

        [$filter_from_date, $filter_to_date] = $this->applyDateRange($duration, $request->from_date, $request->to_date);

        $productQuery = Product::select('id', 'business_id', 'productName', 'product_type', 'created_at')
            ->with(['stocks:id,business_id,product_id,productStock,productPurchasePrice', 'combo_products.stock'])
            ->where('business_id', $businessId);
        $this->applyDateFilter($productQuery, $duration, 'created_at', $fromDate, $toDate);
        $products = $productQuery->get()
            ->map(function ($item) {
                $item->source = 'product';
                return $item;
            });

        $bankQuery = PaymentType::where('business_id', $businessId);
        $this->applyDateFilter($bankQuery, $duration, 'opening_date', $fromDate, $toDate);
        $banks = $bankQuery->get()
            ->map(function ($item) {
                $item->source = 'bank';
                return $item;
            });

        $asset_datas = $products->merge($banks);
        $page    = LengthAwarePaginator::resolveCurrentPage();
        $products   = $asset_datas->slice(($page - 1) * $perPage, $perPage)->values();
        $asset_datas = new LengthAwarePaginator(
            $products,
            $asset_datas->count(),
            $perPage,
            $page,
            ['path' => request()->url(), 'query' => request()->query()]
        );

        $total_stock_value = 0;
        foreach ($products as $product) {
            if (in_array($product->product_type, ['single', 'variant'])) {
                foreach ($product->stocks as $stock) {
                    $total_stock_value += $stock->productStock * $stock->productPurchasePrice;
                }
            }

            if ($product->product_type === 'combo') {
                foreach ($product->combo_products as $combo) {
                    $childStock = $combo->stock;
                    if ($childStock) {
                        $total_stock_value += ($childStock->productStock / $combo->quantity) * $combo->purchase_price;
                    }
                }
            }
        }

        $totalBankBalance = $banks->sum('balance');
        $total_asset      = $total_stock_value + $totalBankBalance;

         if ($request->ajax()) {
            return response()->json([
                'data' => view('business::balance-sheets.datas', compact('asset_datas', 'total_asset', 'filter_from_date', 'filter_to_date', 'duration'))->render(),
                'total_asset' => currency_format($total_asset, currency: business_currency()),
            ]);
        }

        return view('business::balance-sheets.index', compact('asset_datas', 'total_asset', 'filter_from_date', 'filter_to_date', 'duration'));
    }

    public function exportExcel()
    {
        return Excel::download(new ExportBalanceSheet, 'balance-sheet.xlsx');
    }

    public function exportCsv()
    {
        return Excel::download(new ExportBalanceSheet, 'balance-sheet.csv');
    }

    public function exportPdf(Request $request)
    {
        $businessId = auth()->user()->business_id;

        // PRODUCT
        $productQuery = Product::select('id', 'business_id', 'productName', 'product_type', 'created_at')
            ->with(['stocks:id,business_id,product_id,productStock,productPurchasePrice', 'combo_products.stock'])
            ->where('business_id', $businessId);
        $products = $productQuery->get()
            ->map(function ($item) {
                $item->source = 'product';
                return $item;
            });

        // BANK
        $bankQuery = PaymentType::where('business_id', $businessId);
        $banks = $bankQuery->get()
            ->map(function ($item) {
                $item->source = 'bank';
                return $item;
            });

        $asset_datas = $products->merge($banks);

        // TOTAL STOCK VALUE
        $total_stock_value = 0;
        foreach ($products as $product) {
            if (in_array($product->product_type, ['single', 'variant'])) {
                foreach ($product->stocks as $stock) {
                    $total_stock_value += $stock->productStock * $stock->productPurchasePrice;
                }
            }

            if ($product->product_type === 'combo') {
                foreach ($product->combo_products as $combo) {
                    $childStock = $combo->stock;
                    if ($childStock) {
                        $total_stock_value += ($childStock->productStock / $combo->quantity) * $combo->purchase_price;
                    }
                }
            }
        }

        $totalBankBalance = $banks->sum('balance');
        $total_asset      = $total_stock_value + $totalBankBalance;

        return PdfService::render('business::balance-sheets.pdf', compact('asset_datas', 'total_asset'),'balance-sheet-report.pdf');
    }
}