<?php

namespace App\Services;

use App\Models\Order;
use App\Models\ProductSKU;
use App\Models\Scopes\YearScope;
use Illuminate\Database\Eloquent\Builder;

class OrderPaymentStatusService
{
    public function paidBackfillCandidatesQuery(?int $year = null): Builder
    {
        return Order::query()
            ->withoutGlobalScope(YearScope::class)
            ->when($year !== null, fn (Builder $query): Builder => $query->where('year', $year))
            ->where('order_status_id', '<>', Order::STATUS_PAID)
            ->whereHas('products_sku', function (Builder $query): void {
                $query->withoutGlobalScope(YearScope::class);
            })
            ->whereDoesntHave('products_sku', function (Builder $query): void {
                $query
                    ->withoutGlobalScope(YearScope::class)
                    ->where(function (Builder $query): void {
                        $query
                            ->whereNull('statement_number')
                            ->orWhereRaw("TRIM(statement_number) = ''")
                            ->orWhereNull('upd_number')
                            ->orWhereRaw("TRIM(upd_number) = ''");
                    });
            });
    }

    public function markPaidIfAllMafsHavePaymentData(Order|int|null $order): bool
    {
        if ($order === null) {
            return false;
        }

        $order = $order instanceof Order
            ? $order
            : Order::query()->withoutGlobalScope(YearScope::class)->find($order);

        if (!$order) {
            return false;
        }

        $mafsQuery = ProductSKU::query()
            ->withoutGlobalScope(YearScope::class)
            ->where('order_id', $order->id);

        if (!(clone $mafsQuery)->exists()) {
            return false;
        }

        $hasIncompleteMafs = (clone $mafsQuery)
            ->where(function ($query): void {
                $query
                    ->whereNull('statement_number')
                    ->orWhereRaw("TRIM(statement_number) = ''")
                    ->orWhereNull('upd_number')
                    ->orWhereRaw("TRIM(upd_number) = ''");
            })
            ->exists();

        if ($hasIncompleteMafs) {
            return false;
        }

        if ((int) $order->order_status_id !== Order::STATUS_PAID) {
            $order->update(['order_status_id' => Order::STATUS_PAID]);
        }

        return true;
    }
}