<?php

namespace Modules\AssetExchange\Services;

use App\Business;
use App\User;
use Illuminate\Support\Facades\DB;
use Illuminate\Support\Facades\Schema;
use Modules\AssetExchange\Models\AppraisalLine;
use Modules\AssetExchange\Models\Listing;
use Modules\AssetExchange\Models\PriceInquiry;
use Modules\AssetExchange\Models\PriceInquiryLine;
use Modules\AssetExchange\Models\PriceInquiryRecipient;
use Modules\AssetExchange\Utils\AssetExchangeUtil;

class PriceInquiryService
{
    public function __construct(
        protected AssetExchangeUtil $aexUtil,
        protected PipelineService $pipelineService,
        protected AssetExchangeNotificationService $notificationService
    ) {
    }

    public function create(Business $business, Listing $listing, array $data, ?User $user = null): PriceInquiry
    {
        if (! Schema::hasTable('aex_price_inquiries')) {
            throw new \RuntimeException('جدول استعلام قیمت موجود نیست.');
        }

        return DB::transaction(function () use ($business, $listing, $data, $user) {
            $inquiry = PriceInquiry::create([
                'business_id' => $business->id,
                'listing_id' => $listing->id,
                'appraisal_id' => $data['appraisal_id'] ?? null,
                'inquiry_code' => $data['inquiry_code'] ?? $this->aexUtil->generateInquiryCode($business->id),
                'title' => $data['title'] ?? ('استعلام قیمت — '.$listing->title),
                'status' => 'draft',
                'inquiry_type' => $data['inquiry_type'] ?? 'mixed',
                'notes' => $data['notes'] ?? null,
                'due_date' => ! empty($data['due_date'])
                    ? $this->aexUtil->parseInputDate($data['due_date'])
                    : null,
                'created_by' => $user?->id,
            ]);

            if (! empty($data['lines']) && is_array($data['lines'])) {
                $this->syncLines($business, $inquiry, $data['lines']);
            } elseif (! empty($data['from_appraisal']) && $inquiry->appraisal_id) {
                $this->importLinesFromAppraisal($business, $inquiry);
            } else {
                $this->addDefaultMachineLine($business, $inquiry, $listing);
            }

            if (! empty($data['supplier_contact_ids'])) {
                foreach ((array) $data['supplier_contact_ids'] as $contactId) {
                    $this->addRecipient($business, $inquiry, 'supplier', (int) $contactId, null);
                }
            }

            if (! empty($data['internal_user_ids'])) {
                foreach ((array) $data['internal_user_ids'] as $userId) {
                    $this->addRecipient($business, $inquiry, 'internal_user', null, (int) $userId);
                }
            }

            $this->pipelineService->logEvent(
                $business,
                PriceInquiry::class,
                $inquiry->id,
                'price_inquiry_created',
                'استعلام قیمت ایجاد شد',
                $user
            );

            return $inquiry->fresh(['lines', 'recipients']);
        });
    }

    public function send(PriceInquiry $inquiry, ?User $user = null): PriceInquiry
    {
        $inquiry->loadMissing('business', 'recipients', 'listing');
        $inquiry->update(['status' => 'sent']);

        PriceInquiryRecipient::where('price_inquiry_id', $inquiry->id)
            ->where('status', 'pending')
            ->update(['sent_at' => now(), 'notified_at' => now()]);

        try {
            $this->notificationService->notifyInquiryRecipients($inquiry->business, $inquiry);
        } catch (\Throwable) {
        }

        $this->pipelineService->logEvent(
            $inquiry->business,
            PriceInquiry::class,
            $inquiry->id,
            'price_inquiry_sent',
            'استعلام قیمت برای گیرندگان ارسال شد',
            $user
        );

        return $inquiry->fresh(['recipients']);
    }

    public function recordQuote(PriceInquiryRecipient $recipient, array $data, ?User $user = null): PriceInquiryRecipient
    {
        $recipient->loadMissing('inquiry.listing', 'contact');
        $recipient->update([
            'status' => 'responded',
            'quoted_price' => (int) ($data['quoted_price'] ?? 0),
            'currency' => $data['currency'] ?? 'IRR',
            'quote_notes' => $data['quote_notes'] ?? null,
            'responded_at' => now(),
        ]);

        $inquiry = $recipient->inquiry;
        if ($inquiry) {
            $pending = $inquiry->recipients()->where('status', 'pending')->count();
            $inquiry->update(['status' => $pending > 0 ? 'partial' : 'completed']);

            try {
                $inquiry->loadMissing('creator', 'listing.broker');
                $notifiedUserIds = [];
                $supplierName = $recipient->contact?->name ?: 'تأمین‌کننده';
                $message = $supplierName.' برای استعلام '.$inquiry->inquiry_code.' قیمت ثبت کرد.';

                $business = Business::find($inquiry->business_id);
                if ($business && $inquiry->creator) {
                    $this->notificationService->notify(
                        $business,
                        'aex_supplier_quote_submitted',
                        'ثبت قیمت از سمت تأمین‌کننده',
                        $message,
                        $inquiry->creator,
                        null,
                        ['inquiry_id' => $inquiry->id, 'url' => action([\Modules\AssetExchange\Http\Controllers\PriceInquiryController::class, 'show'], [$inquiry->id])],
                        'high'
                    );
                    $notifiedUserIds[] = $inquiry->creator->id;
                }

                $broker = $inquiry->listing?->broker;
                if ($business && $broker && ! in_array($broker->id, $notifiedUserIds, true)) {
                    $this->notificationService->notify(
                        $business,
                        'aex_supplier_quote_submitted',
                        'ثبت قیمت از سمت تأمین‌کننده',
                        $message,
                        $broker,
                        null,
                        ['inquiry_id' => $inquiry->id, 'url' => action([\Modules\AssetExchange\Http\Controllers\PriceInquiryController::class, 'show'], [$inquiry->id])],
                        'high'
                    );
                }
            } catch (\Throwable) {
            }
        }

        return $recipient->fresh();
    }

    public function markRecipientViewed(PriceInquiryRecipient $recipient): PriceInquiryRecipient
    {
        if (! $recipient->viewed_at) {
            $recipient->update(['viewed_at' => now()]);
        }

        return $recipient->fresh();
    }

    public function addRecipient(Business $business, PriceInquiry $inquiry, string $type, ?int $contactId, ?int $userId): PriceInquiryRecipient
    {
        return PriceInquiryRecipient::create([
            'business_id' => $business->id,
            'price_inquiry_id' => $inquiry->id,
            'recipient_type' => $type,
            'contact_id' => $contactId,
            'user_id' => $userId,
            'status' => 'pending',
        ]);
    }

    protected function syncLines(Business $business, PriceInquiry $inquiry, array $lines): void
    {
        $sort = 0;
        foreach ($lines as $line) {
            if (empty($line['part_name']) && empty($line['description'])) {
                continue;
            }
            PriceInquiryLine::create([
                'business_id' => $business->id,
                'price_inquiry_id' => $inquiry->id,
                'line_kind' => $line['line_kind'] ?? 'part',
                'part_name' => $line['part_name'] ?? null,
                'description' => $line['description'] ?? null,
                'quantity' => (float) ($line['quantity'] ?? 1),
                'target_condition' => $line['target_condition'] ?? 'either',
                'ie_item_master_id' => $line['ie_item_master_id'] ?? null,
                'appraisal_line_id' => $line['appraisal_line_id'] ?? null,
                'reference_price' => isset($line['reference_price']) ? (int) $line['reference_price'] : null,
                'notes' => $line['notes'] ?? null,
                'sort_order' => $sort++,
            ]);
        }
    }

    protected function importLinesFromAppraisal(Business $business, PriceInquiry $inquiry): void
    {
        $lines = AppraisalLine::where('appraisal_id', $inquiry->appraisal_id)
            ->whereIn('renovation_need', ['minor', 'major', 'replace'])
            ->orderBy('sort_order')
            ->get();

        $sort = 0;
        foreach ($lines as $line) {
            PriceInquiryLine::create([
                'business_id' => $business->id,
                'price_inquiry_id' => $inquiry->id,
                'line_kind' => 'part',
                'part_name' => $line->name,
                'description' => $line->condition_notes,
                'quantity' => 1,
                'target_condition' => $line->renovation_need === 'replace' ? 'new' : 'either',
                'appraisal_line_id' => $line->id,
                'ie_item_master_id' => $line->ie_item_master_id,
                'reference_price' => $line->replacement_cost ?: null,
                'sort_order' => $sort++,
            ]);
        }
    }

    protected function addDefaultMachineLine(Business $business, PriceInquiry $inquiry, Listing $listing): void
    {
        PriceInquiryLine::create([
            'business_id' => $business->id,
            'price_inquiry_id' => $inquiry->id,
            'line_kind' => 'machine',
            'part_name' => $listing->title,
            'description' => trim(($listing->manufacturer ?? '').' '.($listing->model ?? '')),
            'quantity' => 1,
            'target_condition' => str_contains($listing->listing_type, 'new') ? 'new' : 'used',
            'reference_price' => $listing->asking_price ?: null,
            'sort_order' => 0,
        ]);
    }
}