<?php

namespace App\Http\Middleware;

use Illuminate\Http\Request;
use Inertia\Middleware;
use Modules\ApprovalWorkflow\Models\ApprovalChain;
use Modules\ContractorManagement\Models\Contractor;
use Modules\MaterialLogistics\Models\MaterialRequisition;
use Modules\MaterialLogistics\Models\PurchaseOrder;
use Modules\ProjectManagement\Models\Project;

class HandleInertiaRequests extends Middleware
{
    /**
     * The root template that is loaded on the first page visit.
     *
     * @var string
     */
    protected $rootView = 'app';

    /**
     * Determine the current asset version.
     */
    public function version(Request $request): ?string
    {
        return parent::version($request);
    }

    /**
     * Define the props that are shared by default.
     *
     * @return array<string, mixed>
     */
    public function share(Request $request): array
    {
        return [
            ...parent::share($request),
            'auth' => [
                'user' => $request->user()?->load(['contractor', 'employeeProfile', 'customerProfile']),
                'roles' => $request->user()?->getRoleNames() ?? [],
                'permissions' => $request->user()?->getAllPermissions()->pluck('name') ?? [],
            ],
            'flash' => [
                'success' => $request->session()->get('success'),
                'error' => $request->session()->get('error'),
            ],
            'sidebarBadges' => fn () => $request->user() ? (function () use ($request) {
                $user = $request->user();

                // Drafts belong to their creator. Submitted requests are
                // relevant only when the current user is an assigned approver.
                $ownDraftRequisitions = MaterialRequisition::where('status', 'draft')
                    ->where('requested_by', $user->id)
                    ->count();

                $assignedRequisitionApprovals = ApprovalChain::where('status', 'pending')
                    ->where('type', 'material_requisition')
                    ->whereHas('steps', function ($query) use ($user) {
                        $query->where('approver_id', $user->id)
                            ->where('status', 'pending');
                    })
                    ->count();

                $ownDraftPurchaseOrders = PurchaseOrder::where('status', 'draft')
                    ->where('requested_by', $user->id)
                    ->count();

                $isAdmin = $user->user_type === 'admin' || $user->hasRole(['Super Admin', 'admin', 'Main Contractor Admin']);

                $assignedApprovalsQuery = ApprovalChain::where('status', 'pending')
                    ->whereHas('steps', function ($query) use ($user) {
                        $query->where('approver_id', $user->id)
                            ->where('status', 'pending');
                    });

                if ($user->hasRole('Project Manager') && !$isAdmin) {
                    $assignedApprovalsQuery->where(function ($q) {
                        $q->whereNull('type')
                          ->orWhere('type', '!=', 'project_estimation');
                    })->where('approvable_type', '!=', Project::class);
                }

                $assignedApprovals = $assignedApprovalsQuery->count();

                return [
                    'pending_requisitions' => $ownDraftRequisitions + $assignedRequisitionApprovals,
                    'pending_purchase_orders' => $ownDraftPurchaseOrders,
                    'pending_approvals' => $assignedApprovals,
                ];
            })() : null,
            'projectOptions' => fn () => $request->user()
                ? Project::where('current_wizard_step', '>=', 7)
                    ->with('parentProject:id,ulid,name,code')
                    ->get(['id', 'ulid', 'name', 'code', 'project_type', 'parent_project_id', 'status'])
                : [],
            'unconfirmed_payments' => fn () => $request->user() ? (function () use ($request) {
                $user = $request->user();
                $isSiteOps = $user->hasAnyRole([
                    'Site Technical',
                    'Construction Supervisor',
                    'Site Operations',
                    'Site Engineer',
                    'Site Supervisor',
                ]);
                if ($isSiteOps) {
                    return ['count' => 0, 'total_amount' => 0, 'items' => []];
                }

                $userType = strtolower($user->user_type ?? '');
                $roles = strtolower($user->getRoleNames()->implode(','));
                $isExecutive = in_array($userType, ['admin', 'super_admin', 'project_manager'])
                    || $user->hasAnyRole(['Super Admin', 'admin', 'Admin', 'Project Manager', 'Executive']);

                $visibleProjectIds = Project::query()->pluck('projects.id')->all();
                
                $pendingInvoices = \Modules\FinancialManagement\Models\FinancialInvoice::with('project:id,name,code')
                    ->whereIn('project_id', $visibleProjectIds)
                    ->where('status', 'payment_sent')
                    ->get(['id', 'ulid', 'invoice_number', 'project_id', 'total_amount', 'retention_amount', 'status', 'payment_proof_path', 'payment_proof_name', 'payment_proof_submitted_at'])
                    ->map(fn ($inv) => [
                        'id' => 'inv_' . $inv->id,
                        'ulid' => $inv->ulid,
                        'number' => $inv->invoice_number,
                        'project_name' => $inv->project?->name ?? 'Project',
                        'amount' => (float) $inv->total_amount,
                        'retention_amount' => (float) $inv->retention_amount,
                        'has_proof' => !empty($inv->payment_proof_path),
                        'proof_name' => $inv->payment_proof_name,
                        'type' => 'invoice',
                        'confirm_url' => route('finance.receive-payment', $inv->ulid),
                        'view_url' => route('finance.show', $inv->ulid),
                    ]);

                $pendingRetentions = \Modules\FinancialManagement\Models\RetentionEntry::with('project:id,name,code')
                    ->whereIn('project_id', $visibleProjectIds)
                    ->where('type', 'credit')
                    ->whereIn('status', ['payment_sent', 'submitted'])
                    ->get(['id', 'ulid', 'project_id', 'amount', 'status', 'description', 'media_path', 'media_original_name'])
                    ->map(fn ($ret) => [
                        'id' => 'ret_' . $ret->id,
                        'ulid' => $ret->ulid,
                        'number' => 'Retention Release',
                        'project_name' => $ret->project?->name ?? 'Project',
                        'amount' => (float) $ret->amount,
                        'type' => 'retention',
                        'status' => $ret->status,
                        'confirm_url' => route('retention.confirm', $ret->ulid),
                        'view_url' => route('retention.index'),
                    ]);

                $merged = $pendingInvoices->concat($pendingRetentions);
                return [
                    'count' => $merged->count(),
                    'total_amount' => (float) $merged->sum('amount'),
                    'items' => $merged->values()->all(),
                ];
            })() : ['count' => 0, 'total_amount' => 0, 'items' => []],
            'retention_reminders' => fn () => $request->user() ? (function () use ($request) {
                $user = $request->user();
                $isSiteOps = $user->hasAnyRole([
                    'Site Technical',
                    'Construction Supervisor',
                    'Site Operations',
                    'Site Engineer',
                    'Site Supervisor',
                ]);
                if ($isSiteOps) {
                    return ['count' => 0, 'items' => []];
                }

                $userType = strtolower($user->user_type ?? '');
                $roles = strtolower($user->getRoleNames()->implode(','));
                $isExecutive = in_array($userType, ['admin', 'super_admin', 'project_manager'])
                    || $user->hasAnyRole(['Super Admin', 'admin', 'Admin', 'Project Manager', 'Executive']);
                
                $visibleProjectIds = Project::query()->pluck('projects.id')->all();

                if ($isExecutive) {
                    // Remind Executive to check payment received when payment proof is submitted
                    $proofSubmittedInvoices = \Modules\FinancialManagement\Models\FinancialInvoice::with('project:id,name,code')
                        ->whereIn('project_id', $visibleProjectIds)
                        ->where('status', 'payment_sent')
                        ->whereNotNull('payment_proof_submitted_at')
                        ->get(['id', 'ulid', 'invoice_number', 'project_id', 'total_amount', 'retention_amount', 'penalty_amount', 'payment_proof_name', 'payment_proof_submitted_at'])
                        ->map(fn ($inv) => [
                            'id' => 'inv_proof_' . $inv->id,
                            'ulid' => $inv->ulid,
                            'invoice_number' => $inv->invoice_number,
                            'project_name' => $inv->project?->name ?? 'Project',
                            'amount' => (float) $inv->total_amount,
                            'retention_amount' => (float) $inv->retention_amount + (float) $inv->penalty_amount,
                            'base_retention_amount' => (float) $inv->retention_amount,
                            'penalty_amount' => (float) $inv->penalty_amount,
                            'role_target' => 'executive',
                            'action_type' => 'check_payment_received',
                            'title' => 'Payment Received Check Needed',
                            'message' => "Contractor submitted payment proof for Invoice {$inv->invoice_number}. Please check and confirm receipt.",
                            'view_url' => route('finance.show', $inv->ulid),
                        ]);

                    return [
                        'count' => $proofSubmittedInvoices->count(),
                        'items' => $proofSubmittedInvoices->values()->all(),
                    ];
                } else {
                    // Remind Contractor Admin to pay 10% and send payment proof for approved invoices
                    $awaitingProofInvoices = \Modules\FinancialManagement\Models\FinancialInvoice::with('project:id,name,code')
                        ->whereIn('project_id', $visibleProjectIds)
                        ->whereIn('status', ['approved', 'sent'])
                        ->whereNull('payment_proof_submitted_at')
                        ->get(['id', 'ulid', 'invoice_number', 'project_id', 'total_amount', 'retention_amount', 'penalty_amount', 'retention_rate'])
                        ->map(fn ($inv) => [
                            'id' => 'inv_pay_' . $inv->id,
                            'ulid' => $inv->ulid,
                            'invoice_number' => $inv->invoice_number,
                            'project_name' => $inv->project?->name ?? 'Project',
                            'amount' => (float) $inv->total_amount,
                            'retention_amount' => (float) $inv->retention_amount + (float) $inv->penalty_amount,
                            'base_retention_amount' => (float) $inv->retention_amount,
                            'penalty_amount' => (float) $inv->penalty_amount,
                            'retention_rate' => (float) $inv->retention_rate,
                            'role_target' => 'contractor',
                            'action_type' => 'send_payment_proof',
                            'title' => '10% Payment & Proof Reminder',
                            'message' => "Invoice {$inv->invoice_number} is approved. Please remit the payment" . ((float) $inv->penalty_amount > 0 ? " (including penalty)" : "") . " and upload payment proof.",
                            'view_url' => route('finance.show', $inv->ulid),
                        ]);

                    return [
                        'count' => $awaitingProofInvoices->count(),
                        'items' => $awaitingProofInvoices->values()->all(),
                    ];
                }
            })() : ['count' => 0, 'items' => []],
        ];
    }
}