<?php

namespace Modules\Business\App\Http\Controllers;

use App\Http\Controllers\Controller;
use App\Models\Transaction;
use App\Services\PdfService;
use App\Traits\DateFilterTrait;
use App\Traits\DateRangeTrait;
use Illuminate\Http\Request;
use Maatwebsite\Excel\Facades\Excel;
use Modules\Business\App\Exports\ExportCashFlowReport;

class AcnooCashFlowReportController extends Controller
{
    use DateFilterTrait, DateRangeTrait;

    public function index(Request $request)
    {
        $query = Transaction::with([
            'paymentType:id,name',
            'sale:id,party_id',
            'sale.party:id,name',
            'saleReturn:id,sale_id',
            'purchase:id,party_id',
            'purchase.party:id,name',
            'purchaseReturn:id,purchase_id',
            'dueCollect:id,party_id',
            'dueCollect.party:id,name',
        ])
            ->where('business_id', auth()->user()->business_id)
            ->whereIn('type', ['debit', 'credit']);

        $total_cash_in = (clone $query)
        ->where('type', 'credit')
        ->sum('amount');

        $total_cash_out = (clone $query)
            ->where('type', 'debit')
            ->sum('amount');

        $total_running_cash = $total_cash_in - $total_cash_out;

        // Date Filter
        $duration = $request->custom_days ?: 'today';
        [$filter_from_date, $filter_to_date] = $this->applyDateRange($duration, $request->from_date, $request->to_date);

        $this->applyDateFilter($query, $duration, 'date', $request->from_date, $request->to_date);

        // Search filter
        if ($request->filled('search')) {
            $query->where(function ($query) use ($request) {
                $query->where('date', 'like', '%' . $request->search . '%')
                    ->orWhere('invoice_no', 'like', '%' . $request->search . '%')
                    ->orWhere('platform', 'like', '%' . $request->search . '%')
                    ->orWhere('amount', 'like', '%' . $request->search . '%')
                    ->orWhere('transaction_type', 'like', '%' . $request->search . '%')
                    ->orWhereHas('paymentType', function ($q) use ($request) {
                        $q->where('name', 'like', '%' . $request->search . '%');
                    });
            });
        }

        // Platform filter
        if ($request->filled('platform')) {
            $query->where('platform', $request->platform);
        }

        // Paginate data
        $perPage = $request->input('per_page', 20);
        $cash_flows = $query->paginate($perPage)->appends($request->query());

        $firstDate = $cash_flows->first()?->date;

        if ($firstDate) {
            $opening_balance = (clone $query)
                ->whereDate('date', '<', $firstDate)
                ->selectRaw("SUM(CASE WHEN type='credit' THEN amount ELSE 0 END) - SUM(CASE WHEN type='debit' THEN amount ELSE 0 END) as balance")
                ->value('balance') ?? 0;
        } else {
            $opening_balance = 0;
        }

        if ($request->ajax()) {
            return response()->json([
                'data' => view('business::cash-flow.datas', compact('cash_flows', 'total_cash_in', 'total_cash_out', 'opening_balance', 'total_running_cash', 'filter_from_date', 'filter_to_date', 'duration'))->render()
            ]);
        }

        return view('business::cash-flow.index', compact('cash_flows', 'total_cash_in', 'total_cash_out', 'opening_balance', 'total_running_cash', 'filter_from_date', 'filter_to_date', 'duration'));
    }

    public function exportExcel()
    {
        return Excel::download(new ExportCashFlowReport, 'cash-flow.xlsx');
    }

    public function exportCsv()
    {
        return Excel::download(new ExportCashFlowReport, 'cash-flow.csv');
    }

    public function exportPdf()
    {
        $cash_flows = Transaction::with([
            'paymentType:id,name',
            'sale:id,party_id',
            'sale.party:id,name',
            'saleReturn:id,sale_id',
            'purchase:id,party_id',
            'purchase.party:id,name',
            'purchaseReturn:id,purchase_id',
            'dueCollect:id,party_id',
            'dueCollect.party:id,name',
        ])
            ->where('business_id', auth()->user()->business_id)
            ->whereIn('type', ['debit', 'credit'])
            ->latest()
            ->get();

        $opening_balance = 0;

        return PdfService::render('business::cash-flow.pdf', compact('cash_flows', 'opening_balance'),'cash-flow-report.pdf');
    }
}