<?php

namespace Modules\Crm\Http\Controllers;

use App\Utils\ModuleUtil;
use Illuminate\Http\Request;
use Illuminate\Routing\Controller;
use Carbon\Carbon;
use Modules\Crm\Entities\CrmCallAssessment;
use Modules\Crm\Entities\CrmCallQueue;
use Modules\Crm\Entities\CrmCallScript;
use Modules\Crm\Entities\CrmCallSession;
use Modules\Crm\Entities\CrmCompany;
use Modules\Crm\Entities\CrmCompanyContact;
use Modules\Crm\Entities\CrmCompanyOffer;
use Modules\Crm\Entities\CrmCompanyRequirement;
use Modules\Crm\Entities\CrmPhoneFollowUp;
use Modules\Crm\Services\CallQueueService;
use Modules\Crm\Services\CallSessionCompletionService;
use Modules\Crm\Services\CompanyProfileService;
use Modules\Crm\Utils\PhoneListUtil;
use Modules\Crm\Utils\TelemarketingUtil;

class CallWorkspaceController extends Controller
{
    protected $moduleUtil;

    protected $callQueueService;

    protected $companyProfileService;

    protected $completionService;

    public function __construct(
        ModuleUtil $moduleUtil,
        CallQueueService $callQueueService,
        CompanyProfileService $companyProfileService,
        CallSessionCompletionService $completionService
    ) {
        $this->moduleUtil = $moduleUtil;
        $this->callQueueService = $callQueueService;
        $this->companyProfileService = $companyProfileService;
        $this->completionService = $completionService;
    }

    protected function authorizeAccess(): void
    {
        $business_id = request()->session()->get('user.business_id');
        TelemarketingUtil::authorizeTelemarketing($this->moduleUtil, $business_id, 'crm.telemarketing.access');
    }

    public function index()
    {
        $this->authorizeAccess();
        $business_id = request()->session()->get('user.business_id');

        if (! TelemarketingUtil::isEnabled($business_id)) {
            return redirect()->action([CrmSettingsController::class, 'index'])
                ->with('status', ['success' => 0, 'msg' => __('crm::lang.enable_telemarketing_first')]);
        }

        $activeSession = $this->callQueueService->getActiveSession($business_id, auth()->id());
        $activeQueue = empty($activeSession)
            ? $this->callQueueService->getActiveQueue($business_id, auth()->id())
            : $activeSession->queue;
        $script = CrmCallScript::where('business_id', $business_id)->where('is_default', true)->first();
        if (empty($script)) {
            $script = CrmCallScript::where('business_id', $business_id)->latest()->first();
        }
        $scripts = CrmCallScript::where('business_id', $business_id)->get();
        $statuses = CrmPhoneFollowUp::statusDropdown();
        $outcomes = CrmCallSession::outcomes();
        $sentiments = CrmCallAssessment::sentiments();
        $contactRoles = CrmCompanyContact::roles();
        $companyTypes = CrmCompany::companyTypes();
        $requirementTypes = CrmCompanyRequirement::requirementTypes();
        $objections = $this->objectionOptions();
        $partnerPotentials = ['none' => __('crm::lang.partner_none'), 'low' => __('crm::lang.partner_low'), 'medium' => __('crm::lang.partner_medium'), 'high' => __('crm::lang.partner_high')];
        $workspaceStats = $this->buildWorkspaceStats($business_id, auth()->id());
        $crm_settings = TelemarketingUtil::mergeSettings((new \Modules\Crm\Utils\CrmUtil())->getCrmSettings($business_id));

        return view('crm::telemarketing.workspace')->with(compact(
            'activeSession', 'activeQueue', 'script', 'scripts', 'statuses', 'outcomes', 'sentiments',
            'contactRoles', 'companyTypes', 'requirementTypes', 'objections', 'partnerPotentials',
            'workspaceStats', 'crm_settings'
        ));
    }

    public function workspaceStats()
    {
        $this->authorizeAccess();
        $business_id = request()->session()->get('user.business_id');

        return response()->json($this->buildWorkspaceStats($business_id, auth()->id()));
    }

    protected function buildWorkspaceStats(int $business_id, int $user_id): array
    {
        $today = Carbon::today();
        $this->callQueueService->syncQueueForBusiness($business_id);

        $todaySessions = CrmCallSession::where('business_id', $business_id)
            ->where('user_id', $user_id)
            ->whereDate('started_at', $today)
            ->get();

        $settings = TelemarketingUtil::mergeSettings((new \Modules\Crm\Utils\CrmUtil())->getCrmSettings($business_id));
        $target = (int) ($settings['daily_call_target_per_agent'] ?? 50);
        $done = $todaySessions->whereNotNull('ended_at')->count();

        return [
            'queue_remaining' => CrmCallQueue::where('business_id', $business_id)
                ->whereIn('status', ['available', 'locked'])
                ->whereHas('phoneFollowUp', function ($q) {
                    $q->where('status', 'pending');
                })
                ->count(),
            'today_calls' => $done,
            'today_answered' => $todaySessions->where('outcome', 'answered')->count(),
            'today_interested' => CrmPhoneFollowUp::where('business_id', $business_id)->where('assigned_to', $user_id)->where('status', 'interested')->whereDate('last_follow_up_at', $today)->count(),
            'daily_target' => $target,
            'target_progress' => $target > 0 ? min(100, round(($done / $target) * 100)) : 0,
            'avg_lead_score' => round((float) CrmCallAssessment::whereHas('callSession', function ($q) use ($business_id, $user_id, $today) {
                $q->where('business_id', $business_id)->where('user_id', $user_id)->whereDate('started_at', $today);
            })->avg('cooperation_score') ?: 0, 1),
        ];
    }

    protected function objectionOptions(): array
    {
        return [
            'price' => __('crm::lang.objection_price'),
            'competitor' => __('crm::lang.objection_competitor'),
            'timing' => __('crm::lang.objection_timing'),
            'no_need' => __('crm::lang.objection_no_need'),
            'no_budget' => __('crm::lang.objection_no_budget'),
            'send_email' => __('crm::lang.objection_send_email'),
        ];
    }

    public function releaseQueue(Request $request)
    {
        $this->authorizeAccess();
        $released = $this->callQueueService->release((int) $request->input('queue_id'), auth()->id());

        return response()->json([
            'success' => $released,
            'msg' => $released ? __('crm::lang.queue_released') : __('messages.something_went_wrong'),
        ]);
    }

    public function acquireNext(Request $request)
    {
        $this->authorizeAccess();
        $business_id = request()->session()->get('user.business_id');

        $queue = $this->callQueueService->acquireNext(
            $business_id,
            auth()->id(),
            $request->input('campaign_id')
        );

        if (empty($queue)) {
            return response()->json(['success' => false, 'msg' => __('crm::lang.no_numbers_in_queue')]);
        }

        return response()->json([
            'success' => true,
            'queue' => $queue,
            'phone' => $queue->phoneFollowUp,
        ]);
    }

    public function startSession(Request $request)
    {
        $this->authorizeAccess();
        $session = $this->callQueueService->startSession((int) $request->input('queue_id'), auth()->id());

        if (empty($session)) {
            return response()->json(['success' => false, 'msg' => __('messages.something_went_wrong')]);
        }

        return response()->json(['success' => true, 'session' => $session]);
    }

    public function workspaceData($phone_id)
    {
        $this->authorizeAccess();
        $business_id = request()->session()->get('user.business_id');

        $phone = CrmPhoneFollowUp::where('business_id', $business_id)->findOrFail($phone_id);
        $phoneListUtil = new PhoneListUtil();
        $logs = $phone->logs()->with('createdBy')->limit(30)->get();
        $callLogs = $phoneListUtil->getCallLogsForPhone($phone);
        $assessments = CrmCallAssessment::where('phone_follow_up_id', $phone->id)->with('assessedBy')->latest()->limit(10)->get();
        $statuses = CrmPhoneFollowUp::statusDropdown();

        $company = null;
        $suggestedFields = [];
        $contacts = [];
        if (! empty($phone->company_id)) {
            $company = CrmCompany::with(['contacts', 'branches', 'phones', 'requirements.product'])->find($phone->company_id);
        }
        if (empty($company)) {
            $company = $this->companyProfileService->findOrCreateForPhone($phone, auth()->id());
            $company->load(['contacts', 'branches', 'phones', 'requirements']);
        }
        $suggestedFields = $this->companyProfileService->getSuggestedFieldsForCall($company);
        $contacts = $company->contacts;

        return response()->json([
            'phone' => $phone,
            'statuses' => $statuses,
            'logs' => $logs->map(function ($log) use ($statuses) {
                return [
                    'status' => $statuses[$log->status] ?? $log->status,
                    'note' => $log->note,
                    'created_at' => $log->created_at?->format('Y-m-d H:i'),
                    'user' => $log->createdBy?->user_full_name,
                    'is_auto' => $log->is_auto,
                ];
            }),
            'call_logs' => $callLogs,
            'assessments' => $assessments,
            'company' => $company,
            'suggested_fields' => $suggestedFields,
            'contacts' => $contacts,
            'company_url' => action([CompanyProfileController::class, 'show'], $company->id),
        ]);
    }

    public function completeSession(Request $request, $session_id)
    {
        $this->authorizeAccess();
        $business_id = request()->session()->get('user.business_id') ?? auth()->user()->business_id;

        $request->validate([
            'outcome' => 'required|string',
            'status' => 'nullable|string',
            'note' => 'nullable|string',
            'reception_score' => 'nullable|integer|min:1|max:5',
            'tone_score' => 'nullable|integer|min:1|max:5',
            'cooperation_score' => 'nullable|integer|min:1|max:5',
        ]);

        $result = $this->completionService->complete(
            (int) $session_id,
            auth()->id(),
            $business_id,
            $request->all()
        );

        return response()->json($result);
    }

    public function previewOffers($company_id)
    {
        $this->authorizeAccess();
        $business_id = request()->session()->get('user.business_id');
        $company = CrmCompany::where('business_id', $business_id)->findOrFail($company_id);
        $matcher = new \Modules\Crm\Services\OfferMatchingService();

        return response()->json(['success' => true, 'offers' => $matcher->matchForCompany($company)]);
    }

    public function sendOffers(Request $request)
    {
        $this->authorizeAccess();
        $business_id = request()->session()->get('user.business_id');

        $request->validate([
            'company_id' => 'required|integer',
            'offer_ids' => 'required|array',
        ]);

        foreach ($request->input('offer_ids') as $offerId) {
            if (empty($offerId)) {
                continue;
            }
            CrmCompanyOffer::create([
                'company_id' => $request->input('company_id'),
                'offer_catalog_id' => $offerId,
                'call_session_id' => $request->input('call_session_id'),
                'status' => 'draft',
                'sent_via' => 'manual',
                'sent_by' => auth()->id(),
                'sent_at' => now(),
            ]);
        }

        return response()->json(['success' => true, 'msg' => __('crm::lang.offers_saved')]);
    }
}