hub/app/Http/Controllers/Seller/Sales/ExportController.php

<?php

namespace App\Http\Controllers\Seller\Sales;

use App\Http\Controllers\Controller;
use App\Models\Business;
use App\Models\Crm\CrmLead;
use App\Models\Order;
use App\Models\SalesRepAssignment;
use Illuminate\Support\Facades\Auth;
use Illuminate\Support\Str;
use Symfony\Component\HttpFoundation\StreamedResponse;

class ExportController extends Controller
{
    /**
     * Export accounts assigned to the current sales rep as CSV.
     */
    public function accounts(Business $business): StreamedResponse
    {
        $user = Auth::user();

        // Get assigned account IDs
        $assignedAccountIds = SalesRepAssignment::where('business_id', $business->id)
            ->where('user_id', $user->id)
            ->where('assignable_type', Business::class)
            ->pluck('assignable_id');

        $accounts = Business::whereIn('id', $assignedAccountIds)
            ->with(['locations', 'contacts'])
            ->get();

        $filename = 'my-accounts-'.now()->format('Y-m-d').'.csv';

        return $this->streamCsv($filename, function () use ($accounts, $business) {
            $handle = fopen('php://output', 'w');

            // Header row
            fputcsv($handle, [
                'Account Name',
                'Status',
                'Primary Location',
                'City',
                'State',
                'ZIP',
                'Primary Contact',
                'Email',
                'Phone',
                'Last Order Date',
                'Last Order Total',
                'Days Since Order',
            ]);

            foreach ($accounts as $account) {
                $location = $account->locations->first();
                $contact = $account->contacts->first();

                // Get last order
                $lastOrder = Order::where('business_id', $account->id)
                    ->whereHas('items.product.brand', fn ($q) => $q->where('business_id', $business->id))
                    ->orderBy('created_at', 'desc')
                    ->first();

                fputcsv($handle, [
                    $account->name,
                    $account->status ?? 'active',
                    $location?->name ?? '',
                    $location?->city ?? '',
                    $location?->state ?? '',
                    $location?->zipcode ?? '',
                    $contact?->name ?? '',
                    $contact?->email ?? '',
                    $contact?->phone ?? '',
                    $lastOrder?->created_at?->format('Y-m-d') ?? '',
                    $lastOrder ? '$'.number_format($lastOrder->total / 100, 2) : '',
                    $lastOrder ? now()->diffInDays($lastOrder->created_at) : '',
                ]);
            }

            fclose($handle);
        });
    }

    /**
     * Export a single account's order history for meeting prep.
     */
    public function accountHistory(Business $business, Business $account): StreamedResponse
    {
        // Verify assignment
        $isAssigned = SalesRepAssignment::where('business_id', $business->id)
            ->where('user_id', Auth::id())
            ->where('assignable_type', Business::class)
            ->where('assignable_id', $account->id)
            ->exists();

        if (! $isAssigned) {
            abort(403, 'Account not assigned to you');
        }

        $orders = Order::where('business_id', $account->id)
            ->whereHas('items.product.brand', fn ($q) => $q->where('business_id', $business->id))
            ->with(['items.product'])
            ->orderBy('created_at', 'desc')
            ->limit(50)
            ->get();

        $filename = Str::slug($account->name).'-history-'.now()->format('Y-m-d').'.csv';

        return $this->streamCsv($filename, function () use ($orders, $account) {
            $handle = fopen('php://output', 'w');

            // Account summary header
            fputcsv($handle, ['Account Summary: '.$account->name]);
            fputcsv($handle, ['Generated: '.now()->format('F j, Y')]);
            fputcsv($handle, ['Total Orders: '.$orders->count()]);
            fputcsv($handle, ['']);

            // Order details header
            fputcsv($handle, [
                'Order Number',
                'Date',
                'Status',
                'Product',
                'SKU',
                'Quantity',
                'Unit Price',
                'Line Total',
                'Order Total',
            ]);

            foreach ($orders as $order) {
                $firstItem = true;
                foreach ($order->items as $item) {
                    fputcsv($handle, [
                        $firstItem ? $order->order_number : '',
                        $firstItem ? $order->created_at->format('Y-m-d') : '',
                        $firstItem ? ucfirst($order->status) : '',
                        $item->product?->name ?? 'Unknown',
                        $item->product?->sku ?? '',
                        $item->quantity,
                        '$'.number_format($item->price / 100, 2),
                        '$'.number_format(($item->price * $item->quantity) / 100, 2),
                        $firstItem ? '$'.number_format($order->total / 100, 2) : '',
                    ]);
                    $firstItem = false;
                }
            }

            fclose($handle);
        });
    }

    /**
     * Export prospect data with insights for pitch preparation.
     */
    public function prospects(Business $business): StreamedResponse
    {
        $user = Auth::user();

        $leads = CrmLead::where('business_id', $business->id)
            ->where('assigned_to', $user->id)
            ->with(['insights'])
            ->get();

        $filename = 'prospects-'.now()->format('Y-m-d').'.csv';

        return $this->streamCsv($filename, function () use ($leads) {
            $handle = fopen('php://output', 'w');

            // Header row
            fputcsv($handle, [
                'Company Name',
                'Contact Name',
                'Email',
                'Phone',
                'City',
                'State',
                'Status',
                'Source',
                'License Number',
                'Gaps',
                'Pain Points',
                'Opportunities',
                'Notes',
            ]);

            foreach ($leads as $lead) {
                $gaps = $lead->insights->where('insight_type', 'gap')->pluck('description')->implode('; ');
                $painPoints = $lead->insights->where('insight_type', 'pain_point')->pluck('description')->implode('; ');
                $opportunities = $lead->insights->where('insight_type', 'opportunity')->pluck('description')->implode('; ');

                fputcsv($handle, [
                    $lead->company_name,
                    $lead->contact_name ?? '',
                    $lead->email ?? '',
                    $lead->phone ?? '',
                    $lead->city ?? '',
                    $lead->state ?? '',
                    ucfirst($lead->status),
                    $lead->source ?? '',
                    $lead->license_number ?? '',
                    $gaps,
                    $painPoints,
                    $opportunities,
                    $lead->notes ?? '',
                ]);
            }

            fclose($handle);
        });
    }

    /**
     * Export competitor replacement data for sales training.
     */
    public function competitors(Business $business): StreamedResponse
    {
        $replacements = \App\Models\CompetitorReplacement::where('business_id', $business->id)
            ->with(['product.brand'])
            ->orderBy('competitor_name')
            ->get();

        $filename = 'competitor-replacements-'.now()->format('Y-m-d').'.csv';

        return $this->streamCsv($filename, function () use ($replacements) {
            $handle = fopen('php://output', 'w');

            fputcsv($handle, [
                'Competitor Brand',
                'Competitor Product',
                'Our Product',
                'Our SKU',
                'Our Brand',
                'Why Ours is Better',
            ]);

            foreach ($replacements as $replacement) {
                fputcsv($handle, [
                    $replacement->competitor_name,
                    $replacement->competitor_product_name ?? 'Any product',
                    $replacement->product->name,
                    $replacement->product->sku,
                    $replacement->product->brand?->name ?? '',
                    $replacement->advantage_notes ?? '',
                ]);
            }

            fclose($handle);
        });
    }

    /**
     * Generate a pitch builder export for a specific prospect.
     */
    public function pitchBuilder(Business $business, CrmLead $lead): StreamedResponse
    {
        // Verify assignment
        if ($lead->assigned_to !== Auth::id()) {
            abort(403, 'Lead not assigned to you');
        }

        // Get similar successful accounts for reference
        $successStories = Business::where('type', 'buyer')
            ->whereHas('orders', function ($query) use ($business) {
                $query->whereHas('items.product.brand', fn ($q) => $q->where('business_id', $business->id))
                    ->where('created_at', '>=', now()->subMonths(3));
            })
            ->when($lead->city, fn ($q) => $q->whereHas('locations', fn ($l) => $l->where('city', $lead->city)))
            ->with(['locations'])
            ->limit(5)
            ->get();

        $filename = 'pitch-'.Str::slug($lead->company_name).'-'.now()->format('Y-m-d').'.csv';

        return $this->streamCsv($filename, function () use ($lead, $successStories) {
            $handle = fopen('php://output', 'w');

            // Prospect info
            fputcsv($handle, ['PITCH PREPARATION: '.$lead->company_name]);
            fputcsv($handle, ['Generated: '.now()->format('F j, Y')]);
            fputcsv($handle, ['']);

            // Contact info
            fputcsv($handle, ['CONTACT INFORMATION']);
            fputcsv($handle, ['Contact Name', $lead->contact_name ?? 'N/A']);
            fputcsv($handle, ['Email', $lead->email ?? 'N/A']);
            fputcsv($handle, ['Phone', $lead->phone ?? 'N/A']);
            fputcsv($handle, ['Location', ($lead->city ?? '').($lead->city && $lead->state ? ', ' : '').($lead->state ?? '')]);
            fputcsv($handle, ['License', $lead->license_number ?? 'N/A']);
            fputcsv($handle, ['']);

            // Insights
            fputcsv($handle, ['IDENTIFIED GAPS & OPPORTUNITIES']);
            foreach ($lead->insights as $insight) {
                fputcsv($handle, [
                    ucfirst(str_replace('_', ' ', $insight->insight_type)),
                    $insight->description,
                ]);
            }
            fputcsv($handle, ['']);

            // Success stories
            fputcsv($handle, ['SIMILAR SUCCESSFUL ACCOUNTS (Reference for pitch)']);
            fputcsv($handle, ['Account Name', 'Location']);
            foreach ($successStories as $account) {
                $location = $account->locations->first();
                fputcsv($handle, [
                    $account->name,
                    ($location?->city ?? '').($location?->city && $location?->state ? ', ' : '').($location?->state ?? ''),
                ]);
            }

            fputcsv($handle, ['']);
            fputcsv($handle, ['NOTES']);
            fputcsv($handle, [$lead->notes ?? 'No additional notes']);

            fclose($handle);
        });
    }

    /**
     * Helper to stream a CSV response.
     */
    private function streamCsv(string $filename, callable $callback): StreamedResponse
    {
        return response()->stream($callback, 200, [
            'Content-Type' => 'text/csv',
            'Content-Disposition' => 'attachment; filename="'.$filename.'"',
            'Pragma' => 'no-cache',
            'Cache-Control' => 'must-revalidate, post-check=0, pre-check=0',
            'Expires' => '0',
        ]);
    }
}