<?php

namespace Modules\IndustrialEngineering\Http\Controllers;

use App\BusinessLocation;
use App\Contact;
use Illuminate\Http\Request;
use Illuminate\Routing\Controller;
use Modules\IndustrialEngineering\Http\Controllers\Concerns\AuthorizesIndustrialEngineering;
use Modules\IndustrialEngineering\Models\Bom;
use Modules\IndustrialEngineering\Models\LineRevision;
use Modules\IndustrialEngineering\Models\LineTemplate;
use Modules\IndustrialEngineering\Services\IntegrationBridgeService;
use Modules\IndustrialEngineering\Services\LiveBomCostingService;
use Modules\IndustrialEngineering\Services\MrpService;
use Modules\IndustrialEngineering\Services\AutoIntegrationService;
use Modules\IndustrialEngineering\Services\ConnectionGateService;
use Modules\IndustrialEngineering\Services\ConnectionResolutionService;
use Modules\IndustrialEngineering\Support\OperationErrorMessages;

class LineOperationsController extends Controller
{
    use AuthorizesIndustrialEngineering;

    public function __construct(
        protected LiveBomCostingService $liveCosting,
        protected MrpService $mrpService,
        protected IntegrationBridgeService $integrationBridge,
        protected AutoIntegrationService $autoIntegration,
        protected ConnectionGateService $connectionGate,
        protected ConnectionResolutionService $connectionResolution
    ) {
    }

    public function liveCostAnalysis(Request $request, $lineId)
    {
        $this->authorizeIe('ie.costing.view');
        [$line, $revision, $mbom] = $this->resolveLineContext($lineId);

        $plannedQty = (float) $request->input('planned_quantity', 1);
        $locationId = $request->filled('location_id') ? (int) $request->input('location_id') : null;

        $analysis = $this->liveCosting->analyze($mbom, $plannedQty, $locationId);
        $comparison = $this->liveCosting->compareStandardVsLive($mbom, $plannedQty, $locationId);

        if ($request->wantsJson() || $request->ajax()) {
            return response()->json([
                'success' => true,
                'analysis' => $analysis,
                'comparison' => $comparison,
            ]);
        }

        return back()->with('live_cost_analysis', $analysis);
    }

    public function runMrp(Request $request, $lineId)
    {
        $this->authorizeIe('ie.costing.create');
        [$line, $revision, $mbom] = $this->resolveLineContext($lineId);

        $data = $request->validate([
            'planned_quantity' => 'nullable|numeric|min:0.0001',
            'location_id' => 'nullable|integer',
            'supplier_contact_id' => 'nullable|integer',
            'create_purchase_orders' => 'nullable|boolean',
            'create_work_order' => 'nullable|boolean',
        ]);

        if (! $mbom) {
            $msg = __('industrialengineering::lang.no_mbom_for_line', ['line' => $line->name]);
            if ($request->wantsJson() || $request->ajax()) {
                return response()->json(['success' => false, 'msg' => $msg], 422);
            }

            return back()->with('status', ['success' => false, 'msg' => $msg]);
        }

        try {
            $run = $this->mrpService->run(
                $this->businessId(),
                $mbom,
                $revision,
                (float) ($data['planned_quantity'] ?? 1),
                isset($data['location_id']) ? (int) $data['location_id'] : null,
                $request->boolean('create_purchase_orders', true),
                $request->boolean('create_work_order', true),
                isset($data['supplier_contact_id']) ? (int) $data['supplier_contact_id'] : null,
                $request->boolean('force_mrp', false)
            );
        } catch (\Throwable $e) {
            report($e);
            $msg = OperationErrorMessages::for($e);
            if ($request->wantsJson() || $request->ajax()) {
                return response()->json(['success' => false, 'msg' => $msg], 422);
            }

            return back()->with('status', ['success' => false, 'msg' => $msg]);
        }

        $poCount = count($run->purchase_order_ids ?? []);
        $msg = __('industrialengineering::lang.mrp_completed', [
            'po' => $poCount,
            'wo' => $run->work_order_id ? $run->workOrder?->work_order_number : '—',
        ]);

        if ($request->wantsJson() || $request->ajax()) {
            return response()->json([
                'success' => true,
                'msg' => $msg,
                'run' => $run->load(['workOrder']),
                'purchase_order_ids' => $run->purchase_order_ids,
            ]);
        }

        return back()->with('status', ['success' => true, 'msg' => $msg]);
    }

    public function syncCmms(Request $request, $lineId)
    {
        $this->authorizeIe('ie.platforms.create');
        [$line, $revision, $mbom] = $this->resolveLineContext($lineId);

        try {
            $sync = $this->integrationBridge->syncLineBomToMaintenance($line, $mbom);
        } catch (\Throwable $e) {
            report($e);
            $msg = OperationErrorMessages::for($e);
            if ($request->wantsJson() || $request->ajax()) {
                return response()->json(['success' => false, 'msg' => $msg], 422);
            }

            return back()->with('status', ['success' => false, 'msg' => $msg]);
        }

        $line = $sync['line'];

        $equipmentUrl = class_exists(\Modules\Maintenance\Http\Controllers\EquipmentController::class)
            ? action([\Modules\Maintenance\Http\Controllers\EquipmentController::class, 'show'], $line->maintenance_equipment_id)
            : null;

        $msg = __('industrialengineering::lang.cmms_synced_parts', [
            'code' => $line->effectiveCode(),
            'count' => $sync['parts_count'] ?? 0,
        ]);

        if ($request->wantsJson() || $request->ajax()) {
            return response()->json([
                'success' => true,
                'msg' => $msg,
                'equipment_id' => $line->maintenance_equipment_id,
                'equipment_url' => $equipmentUrl,
                'synced_at' => optional($line->cmms_synced_at)->toIso8601String(),
            ]);
        }

        return back()->with('status', ['success' => true, 'msg' => $msg]);
    }

    public function resolveConnections(Request $request, $lineId)
    {
        $this->authorizeIe('ie.bom.create');
        [$line, $revision, $mbom] = $this->resolveLineContext($lineId);

        $result = $this->connectionResolution->resolveLine(
            $line,
            $mbom,
            $request->boolean('sync_cmms', true)
        );

        if ($request->wantsJson() || $request->ajax()) {
            return response()->json([
                'success' => $result['gate']['can_run_mrp'] ?? false,
                'msg' => $result['summary'],
                'stats' => $result['stats'],
                'gate' => $result['gate'],
                'messages' => $result['messages'],
            ]);
        }

        $redirect = $request->input('redirect_to', 'back');
        if ($redirect === 'dashboard') {
            $response = redirect()->action([\Modules\IndustrialEngineering\Http\Controllers\DashboardController::class, 'index']);
        } elseif ($redirect === 'structure') {
            $response = redirect()->action([\Modules\IndustrialEngineering\Http\Controllers\ProductionLineController::class, 'structure'], $lineId);
        } else {
            $response = redirect()->back();
        }

        return $response
            ->with('status', [
                'success' => (bool) ($result['fully_resolved'] ?? false),
                'msg' => $result['summary'],
            ])
            ->with('integration_messages', $result['messages'])
            ->with('resolved_line_id', (int) $lineId)
            ->with('line_fully_resolved', (bool) ($result['fully_resolved'] ?? false));
    }

    protected function resolveLineContext($lineId): array
    {
        $line = LineTemplate::forBusiness($this->businessId())
            ->productionLines()
            ->with(['revisions.boms'])
            ->findOrFail($lineId);

        $ensured = $this->autoIntegration->ensureLineMbom($line);

        return [$line->fresh(['revisions.boms']), $ensured['revision'], $ensured['mbom']];
    }
}