<?php

namespace Modules\Business\App\Http\Controllers;

use App\Models\Branch;
use App\Models\Expense;
use App\Models\PaymentType;
use App\Models\Transaction;
use Illuminate\Http\Request;
use App\Traits\DateRangeTrait;
use App\Models\ExpenseCategory;
use App\Traits\DateFilterTrait;
use Illuminate\Support\Facades\DB;
use App\Http\Controllers\Controller;
use App\Events\MultiPaymentProcessed;

class AcnooExpenseController extends Controller
{
    use DateFilterTrait, DateRangeTrait;

    public function __construct()
    {
        $this->middleware('check.permission:expenses.read')->only(['index']);
        $this->middleware('check.permission:expenses.create')->only(['store']);
        $this->middleware('check.permission:expenses.update')->only(['update']);
        $this->middleware('check.permission:expenses.delete')->only(['destroy', 'deleteAll']);
    }

    public function index(Request $request)
    {
        $expense_categories = ExpenseCategory::where('business_id', auth()->user()->business_id)->whereStatus(1)->latest()->get();
        $payment_types = PaymentType::where('business_id', auth()->user()->business_id)->whereStatus(1)->latest()->get();
        $branches = Branch::withTrashed()->where('business_id', auth()->user()->business_id)->latest()->get();

        $expenseQuery = Expense::with('category:id,categoryName', 'payment_type:id,name', 'branch:id,name', 'transactions')
            ->where('business_id', auth()->user()->business_id);

        $expenseQuery->when($request->branch_id, function ($q) use ($request) {
            $q->where('branch_id', $request->branch_id);
        });

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

        $this->applyDateFilter($expenseQuery, $duration, 'expenseDate', $request->from_date, $request->to_date);

        // Search Filter
        if ($request->filled('search')) {
            $expenseQuery->where(function ($query) use ($request) {
                $query->where('expanseFor', 'like', '%' . $request->search . '%')
                    ->orWhere('paymentType', 'like', '%' . $request->search . '%')
                    ->orWhere('referenceNo', 'like', '%' . $request->search . '%')
                    ->orWhere('amount', 'like', '%' . $request->search . '%')
                    ->orWhereHas('category', function ($q) use ($request) {
                        $q->where('categoryName', 'like', '%' . $request->search . '%');
                    })
                    ->orWhereHas('payment_type', function ($q) use ($request) {
                        $q->where('name', 'like', '%' . $request->search . '%');
                    })
                    ->orWhereHas('branch', function ($q) use ($request) {
                        $q->where('name', 'like', '%' . $request->search . '%');
                    });
            });
        }

        $perPage = $request->input('per_page', 20);
        $expenses = $expenseQuery->latest()->paginate($perPage)->appends($request->query());

        if ($request->ajax()) {
            return response()->json([
                'data' => view('business::expenses.datas', compact('expenses', 'filter_from_date', 'filter_to_date', 'duration'))->render(),
            ]);
        }

        return view('business::expenses.index', compact('expenses', 'expense_categories', 'payment_types', 'branches', 'filter_from_date', 'filter_to_date', 'duration'));
    }

    public function store(Request $request)
    {
        $request->validate([
            'amount' => 'required|numeric',
            'expenseFor' => 'nullable|string',
            'referenceNo' => 'nullable|string',
            'expenseDate' => 'nullable|string',
            'note' => 'nullable|string',
            'expense_category_id' => 'required|exists:expense_categories,id',
        ]);
        DB::beginTransaction();
        try {
            $business_id = auth()->user()->business_id;

            updateBalance($request->amount, 'decrement');

            $expense = Expense::create($request->except('status') + [
                'user_id' => auth()->id(),
                'business_id' => auth()->user()->business_id,
            ]);

            // MultiPaymentProcessed Event
            event(new MultiPaymentProcessed(
                $request->payments ?? [],
                $expense->id,
                'expense',
                $request->amount ?? 0,
            ));

            sendNotifyToUser($expense->id, route('business.expenses.index', ['id' => $expense->id]), __('Expense has been created.'), $business_id);

            DB::commit();

            return response()->json([
                'message' => __('Expense saved successfully.'),
                'redirect' => route('business.expenses.index')
            ]);
        } catch (\Exception $e) {
            DB::rollback();
            return response()->json(['message' => __('Somethings went wrong!')], 404);
        }
    }

    public function update(Request $request, $id)
    {
        $request->validate([
            'amount' => 'required|numeric',
            'expenseFor' => 'nullable|string',
            'referenceNo' => 'nullable|string',
            'expenseDate' => 'nullable|string',
            'note' => 'nullable|string',
            'expense_category_id' => 'required|exists:expense_categories,id',
        ]);

        DB::beginTransaction();
        try {
            $business_id = auth()->user()->business_id;
            $expense = Expense::findOrFail($id);

            updateBalance($request->amount - $expense->amount, 'decrement');

            $expense->update($request->except('status') + [
                'user_id' => auth()->id(),
                'business_id' => auth()->user()->business_id,
            ]);

            // Multiple Payment Process
            $oldTransactions = Transaction::where('business_id', $business_id)
                ->where('reference_id', $expense->id)
                ->where('platform', 'expense')
                ->get();

            // Revert old transactions
            foreach ($oldTransactions as $old) {
                if ($old->transaction_type === 'bank_payment' && $old->payment_type_id) {
                    $paymentType = PaymentType::find($old->payment_type_id);
                    if ($paymentType) {
                        $paymentType->increment('balance', $old->amount);
                    }
                }
            }

            // Delete old transactions
            Transaction::where('business_id', $business_id)
                ->where('reference_id', $expense->id)
                ->where('platform', 'expense')
                ->delete();

            // Process new payments
            event(new MultiPaymentProcessed(
                $request->payments ?? [],
                $expense->id,
                'expense',
                $request->amount ?? 0,
            ));

            DB::commit();

            sendNotifyToUser($expense->id, route('business.expenses.index', ['id' => $expense->id]), __('Expense has been updated.'), $business_id);

            return response()->json([
                'message' => __('Expense updated successfully.'),
                'redirect' => route('business.expenses.index')
            ]);
        } catch (\Exception $e) {
            DB::rollback();
            return response()->json(['message' => __('Somethings went wrong!')], 404);
        }
    }

    public function destroy($id)
    {
        DB::beginTransaction();
        try {
            $expense = Expense::findOrFail($id);

            updateBalance($expense->amount, 'increment');

            sendNotifyToUser($expense->id, route('business.expenses.index', ['id' => $expense->id]), __('Expense has been deleted.'), $expense->business_id);

            $expense->delete();

            DB::commit();

            return response()->json([
                'message' => __('Expense deleted successfully'),
                'redirect' => route('business.expenses.index'),
            ]);
        } catch (\Exception $e) {
            DB::rollback();
            return response()->json(['message' => __('Somethings went wrong!')], 404);
        }
    }

    public function deleteAll(Request $request)
    {
        DB::beginTransaction();
        try {
            $expenses = Expense::whereIn('id', $request->ids)->get();
            $totalAmount = $expenses->sum('amount');

            updateBalance($totalAmount, 'increment');

            Expense::whereIn('id', $request->ids)->delete();
            foreach ($expenses as $expense) {
                sendNotifyToUser($expense->id, route('business.expenses.index', ['id' => $expense->id]), __('Expense has been deleted.'), $expense->business_id);
            }

            DB::commit();

            return response()->json([
                'message' => __('Selected items deleted successfully.'),
                'redirect' => route('business.expenses.index'),
            ]);
        } catch (\Exception $e) {
            DB::rollback();
            return response()->json(['message' => __('Something went wrong!')], 404);
        }
    }
}