<?php

namespace App\Http\Controllers;


use App\BillingPeriodType;
use App\HealthCareSheetType;
use App\InsuranceState;
use App\InsuranceSubscriptionState;
use App\Models\AgentPlus;
use App\Models\CountriesCurrency;
use App\Models\NhHealthCareSheet;
use App\Models\NhHealthCareSheetsExam;
use App\Models\NhHealthCareSheetsPerformance;
use App\Models\NhHealthCareSheetsPrescription;
use App\Models\NhInfosInsurances;
use App\Models\NhInfosInvoice;
use App\Models\NhInsurance;
use App\Models\NhInvoice;
use App\Models\NhNetworksConfig;
use Barryvdh\DomPDF\Facade as PDF;
use DateTime;
use Illuminate\Http\Request;
use Illuminate\Support\Facades\DB;
use Illuminate\Support\Facades\Log;
use Illuminate\Support\Facades\Mail;
use stdClass;
use Throwable;

class InvoiceController extends Controller
{
    /**
     * @OA\Get(
     *   path="/generate-invoice",
     *   summary="Facturer les feuilles de soins",
     *   tags={"Factures"},
     *   security={{"api_key":{}}},
     *   @OA\Parameter(
     *   parameter="network_agent_id",
     *   name="network_agent_id",
     *   description="ID de l'agent dans le reseau",
     *   @OA\Schema(
     *     type="integer"
     *   ),
     *   in="query",
     *   required=true
     * ),
     *   @OA\Response(
     *      response=200,
     *      description="OK",
     *       @OA\JsonContent(
     *           ref="#/components/schemas/ApiResponse",
     *            example = {
     *                      "status" : 200,
     *                      "response" : "La facture a été générée",
     *                      "error":null
     *                  }
     *       )
     *    )
     * )
     */
    // Generer les factures periodiquement pour chaque agent
    public function generateInvoice(Request $request)
    {
        $this->validate($request, [
            'network_agent_id' => 'required|integer|exists:networks_agents,id'
        ]);
        $network_agent_id = $request->input('network_agent_id');
        $agent = AgentPlus::where('network_agent_id', $network_agent_id)->first();
        $hyper = AgentPlus::where('network_id', $agent->network_id)->where('category', 'hyper')->first();
        $config = NhNetworksConfig::where('network_id', $agent->network_id)->first();
        if (!isset($config)) {
            return $this->errorResponse(__('errors.nano_health_not_activated'));
        }

        // executer le script chaque Dimanche a minuit
        $start_at = new DateTime();
        switch ($config->provider_billing_period) {
            case BillingPeriodType::WEEKLY:
                $start_at->modify('-7 days');
                break;
            case BillingPeriodType::BIMONTHLY:
                $start_at->modify('-14 days');
                break;
            case BillingPeriodType::MONTHLY:
                $start_at->modify('-28 days');
                break;
            default:
                $start_at = new DateTime();
        }

        $end_at = new DateTime();


        $invoice_id = $this->generateInvoiceID($agent->code_membre);
        $country = CountriesCurrency::findOrFail($agent->country_id);
        $datetime = $this->getCurrentTimeByCountryCode($country->code_country);

        $totalInsurerAmount = 0;
        $totalInsuredAmount = 0;
        $sheets = NhHealthCareSheet::with(['insurance'])->where('network_agent_id', $network_agent_id)->where('state', InsuranceSubscriptionState::ACCEPTED)
            ->where('created_at', '>=', $start_at)->where('created_at', '<=', $end_at)->orderBy('created_at', 'DESC')->get();

        if (sizeof($sheets) == 0) {
            return $this->errorResponse(__('errors.no_sheet_available'));
        }

        foreach ($sheets as $sheet) {
            $totalInsuredAmount += $sheet->insured_amount;
            $totalInsurerAmount += $sheet->insurance_amount;

            $sheet->date = $sheet->created_at->format('d/m/Y');
        }

        try {
            DB::beginTransaction();

            $directoryName = '/invoices-docs/';
            $filename = $start_at->format('dmY') . '_' . $end_at->format('dmY') . '_' . $agent->code_membre . '_' . time() . '.pdf';

            $invoice = NhInvoice::create([
                'invoice_id' => $invoice_id,
                'network_agent_id' => $agent->network_agent_id,
                'amount' => $totalInsuredAmount + $totalInsurerAmount,
                'insured_amount' => $totalInsuredAmount,
                'insurer_amount' => $totalInsurerAmount,
                'period_start_at' => $start_at,
                'period_end_at' => $end_at,
                'file_url' => config('services.app_url') . $directoryName . $filename,
                'created_at' => $datetime,
                'updated_at' => $datetime
            ]);

            $invoice->amount = $this->toMoneyWithCurrencyCode($invoice->amount, $country->currency_code);
            $invoice->insured_amount = $this->toMoneyWithCurrencyCode($invoice->insured_amount, $country->currency_code);
            $invoice->insurer_amount = $this->toMoneyWithCurrencyCode($invoice->insurer_amount, $country->currency_code);
//            $invoice->home_visit_fees = $this->toMoneyWithCurrencyCode($invoice->home_visit_fees, $country->currency_code);

            $ids = array_map(function ($r) {
                return $r['id'];
            }, $sheets->toArray());

            DB::update("UPDATE nh_health_care_sheets SET state = :state_ , invoice_id = :id WHERE id IN (" . implode(',', $ids) . ")",
                ['id' => $invoice->id, 'state_' => InsuranceSubscriptionState::INVOICE_ISSUED]);

            $invoice->sheets = $sheets;
            $invoice->agent = $agent;
            $invoice->hyper = $hyper;
            $invoice->period = $start_at->format('d/m/Y') . ' ' . trans('messages.to') . ' ' . $end_at->format('d/m/Y');

            //Check if the directory already exists.
            if (!is_dir(public_path($directoryName))) {
                //Directory does not exist, so lets create it.
                mkdir(public_path($directoryName), 0755);
            }

            $title = $agent->lastname . ' - ' . trans('messages.invoice') . ' ' . $invoice->invoice_id;
            $message = __('messages.generated_invoice_mail', ['agent' => $agent->lastname, 'period' => $invoice->period]);

            $file = PDF::loadView('emails.invoice', $invoice->toArray())->setPaper('a4', 'landscape')->setWarnings(false)->save(public_path($directoryName . $filename));

            DB::commit();
            $recipients = [preg_replace("/\s+/", "", $hyper->email)]; // Supprimer les espaces dans le mail
            Mail::mailer('smtp')->raw($message, function ($message) use ($recipients, $title, $file) {
                $message->subject($title)
                    ->to($recipients)
                    ->attachData($file->output(), str_replace(' ', '-', $title) . '.pdf');
            });

        } catch (\Throwable $t) {
            DB::rollBack();
            Log::error('-------- Mail not sent -----------');
            Log::error($t->getMessage() . " :\n" . $t->getTraceAsString());
        }

        return $this->successResponse(__('messages.invoice_generated'));
    }

    /**
     * @OA\Get(
     *   path="/invoices",
     *   summary="Lister les factures",
     *   tags={"Factures"},
     *   security={{"api_key":{}}},
     *  @OA\Parameter(
     *   parameter="network_id",
     *   name="network_id",
     *   description="ID du reseau",
     *   @OA\Schema(
     *     type="integer"
     *   ),
     *   in="query",
     *   required=false
     * ),
     *   @OA\Parameter(
     *   parameter="network_agent_id",
     *   name="network_agent_id",
     *   description="ID de l'agent dans le reseau",
     *   @OA\Schema(
     *     type="integer"
     *   ),
     *   in="query",
     *   required=false
     * ),
     * @OA\Parameter(
     *      parameter="page",
     *      name="page",
     *      description="Page",
     *      in="query",
     *      required=false,
     *      @OA\Schema(
     *           type="integer"
     *      )
     * ),
     *  @OA\Parameter(
     *      parameter="perPage",
     *      name="perPage",
     *      description="Pas de pagination",
     *      in="query",
     *      required=false,
     *      @OA\Schema(
     *           type="integer"
     *      )
     * ),
     *   @OA\Response(
     *      response=200,
     *      description="OK",
     *       @OA\JsonContent(
     *           ref="#/components/schemas/ApiResponse",
     *            example = {
     *                      "status" : 200,
     *                      "response" : {{"id":12,"invoice_id":"25\/01\/2022\/aon8K9BZOn","network_agent_id":43510,"amount":"110\u202f600 FCFA","insured_amount":"104\u202f320 FCFA",
     *     "insurer_amount":"6\u202f280 FCFA","period_start_at":"2021-12-28T00:00:00.000000Z","period_end_at":"2022-01-25T00:00:00.000000Z","file_url":"http:\/\/localhost:8086\/invoices-docs\/28122021_25012022_aon8K9BZOn.pdf",
     *     "created_at":"2022-01-25T19:54:44.000000Z","updated_at":"2022-01-25T19:54:44.000000Z","institution_name":"Agent 2 cnamgs fond 4","institution_code":"aon8K9BZOn","network_id":250,"currency_code":"XAF",
     *     "health_care_sheets":{{"id":72,"invoice_id":12,"health_care_sheet_id":"LG83D7QFGM3X","type":"CONSULTATION","practitioner_lastname":"DIETCHI","practitioner_firstname":"Djery","practitioner_provider_class":"Chirugien",
     *     "patient_lastname":"Zele","patient_firstname":"Brice","institution_name":"Agent 2 cnamgs fond 4","institution_code":"aon8K9BZOn","amount":"5\u202f000 FCFA","insurerAmount":"1\u202f000 FCFA","insuredAmount":"4\u202f000 FCFA"}}}},
     *                      "error":null
     *                  }
     *       )
     *    )
     * )
     */
    public function getInvoices(Request $request)
    {
        $this->validate($request, [
            'network_id' => 'required_without:network_agent_id|integer|exists:networks,id',
            'network_agent_id' => 'required_without:network_id|integer|exists:networks_agents,id'
        ]);
        $network_id = $request->input('network_id');
        $network_agent_id = $request->input('network_agent_id');

        $query = NhInfosInvoice::with(['health_care_sheets:id,invoice_id,health_care_sheet_id,type,practitioner_lastname,practitioner_firstname,practitioner_provider_class,patient_lastname,patient_firstname,institution_name,institution_code']);

        if (!empty($network_id)) {
            $query = $query->where('network_id', $network_id);
        }

        if (!empty($network_agent_id)) {
            $query = $query->where('network_agent_id', $network_agent_id);
        }

        $invoices = $query->orderBy('created_at', 'DESC')->paginate($request->input('perPage', 10));
        foreach ($invoices->items() as $i) {
            $i->amount = $this->toMoneyWithCurrencyCode($i->amount, $i->currency_code);
            $i->insured_amount = $this->toMoneyWithCurrencyCode($i->insured_amount, $i->currency_code);
            $i->insurer_amount = $this->toMoneyWithCurrencyCode($i->insurer_amount, $i->currency_code);


            foreach ($i->health_care_sheets as $sheet) {
                $sheet->amount = $this->toMoneyWithCurrencyCode($sheet->insured_amount + $sheet->insurance_amount, $i->currency_code);
                $sheet->insurerAmount = $this->toMoneyWithCurrencyCode($sheet->insurance_amount, $i->currency_code);
                $sheet->insuredAmount = $this->toMoneyWithCurrencyCode($sheet->insured_amount, $i->currency_code);

            }
        }
        return $this->successResponse($invoices);
    }

    public function treatInvoice(Request $request, $id)
    {
        $this->validate($request, [
            'validating_agent_id' => 'required|integer|exists:nh_validating_agents,id',
            'reason' => 'required_if:action,REJECT|string',
            'action' => 'required|in:ACCEPT,REJECT,ACCEPT_AND_UPDATE',
            'sheets' => 'required_if:action,ACCEPT_AND_UPDATE|array'
        ]);

        $action = $request->input('action');
        $validating_agent_id = $request->input('validating_agent_id');
        $reason = $request->input('reason');
        $invoice = NhInvoice::find($id);
        if (!isset($invoice)) {
            return $this->errorResponse(trans('errors.invoice_not_found'));
        }
        $invoice->validating_agent_id = $validating_agent_id;

        $datetime = $this->getCurrentTime($invoice->institution->country_id);

        try {
            DB::beginTransaction();
            if ($action == 'ACCEPT') {
                $invoice->state = InsuranceSubscriptionState::ACCEPTED;
                $message = trans('messages.invoice_accepted');
            } else if ($action == 'REJECT') {
                $invoice->state = InsuranceSubscriptionState::REJECTED;
                $invoice->reason = $reason;
                $message = trans('messages.invoice_rejected');
            } else {

                $agent = $invoice->institution;
                $network_id = $agent->network_id;
                $hyper = AgentPlus::where('network_id', $network_id)->where('category', 'hyper')->first();
                $nhConfig = NhNetworksConfig::where('network_id', $network_id)->first();
                if (!isset($nhConfig)) {
                    return $this->errorResponse(trans('errors.nano_health_not_activated'));
                }

                $invoice->state = 'MODIFIED';
                $invoiceClone = $invoice->replicate();
                $invoiceClone->state = InsuranceSubscriptionState::ACCEPTED_MODIFIED;
                $invoiceClone->reason = $reason;
                $invoiceClone->created_at = $invoiceClone->updated_at = $datetime;
                $invoiceClone->push();


                $currency_code = $this->getNetworkCurrency($network_id);

                $totalInsurerAmount = 0;
                $totalInsuredAmount = 0;
                $sheetsCloned = [];

                // Fusionner les ids des feuilles de soins existantes et celle modifiées
                $sheets = $request->input('sheets');
                $sheetsIds = array_map(function ($r) {
                    return $r['sheet_id'];
                }, $sheets);

                $invoiceSheetIds = $invoice->sheets()->pluck('id');
                foreach ($invoiceSheetIds as $id) {
                    if (!in_array($id, $sheetsIds)) {
                        $sheets[] = ['sheet_id' => $id];
                    }
                }

                foreach ($sheets as $s) {
                    $sheet = NhHealthCareSheet::findOrFail($s['sheet_id']);
                    $parts = $this->getConfigInsuranceParts($nhConfig, $sheet->care_condition);

                    $sheetClone = $sheet->replicate();
                    $sheetClone->health_care_sheet_id .= '/AM';
                    $sheetClone->invoice_id = $invoiceClone->id;
                    $sheetClone->created_at = $sheetClone->updated_at = $datetime;
                    $sheetClone->push();


                    $performances = $s['prestations'] ?? [];
                    $exams = $s['exams'] ?? [];
                    $prescriptions = $s['prescriptions'] ?? [];

                    $performancesIds = array_map(function ($r) {
                        return $r['id'];
                    }, $performances);

                    $prescriptionsIds = array_map(function ($r) {
                        return $r['id'];
                    }, $prescriptions);

                    $examsIds = array_map(function ($r) {
                        return $r['id'];
                    }, $exams);


                    #Clone relations
                    $sheet->setRelations([]);
                    $sheet->load('performances', 'prescriptions', 'exams');
                    foreach ($sheet->getRelations() as $relation => $items) {
                        foreach ($items as $i) {
                            $item = $i->replicate();

                            if ($sheetClone->type == HealthCareSheetType::CONSULTATION) {
                                if ($relation == 'performances') {
                                    if (in_array($i->id, $performancesIds)) {
                                        $itemIndex = array_search($i->id, $performancesIds);
                                        $delete = $performances[$itemIndex]['to_delete'] ?? false;
                                        Log::error(json_encode([$i->id, $itemIndex, $delete]));
                                        if ($delete) {
                                            continue;
                                        }
                                        $fees = !empty($performances[$itemIndex]['home_visit_fees']) ? $performances[$itemIndex]['home_visit_fees'] : 0;
                                        $item->amount = $performances[$itemIndex]['amount'];
                                        $item->home_visit_fees = $fees != 0 ? $fees : null;
                                        $item->moderator_ticket = $parts->insured_part * ($item->amount + $fees);
                                        $item->insurance_amount = $parts->insurer_part * ($item->amount + $fees);
                                    }
                                }

                            }


                            if ($relation == 'prescriptions') {
                                if (in_array($i->id, $prescriptionsIds)) {
                                    $itemIndex = array_search($i->id, $prescriptionsIds);
                                    $delete = $prescriptions[$itemIndex]['to_delete'] ?? false;
                                    if ($delete) {
                                        continue;
                                    }

                                    if ($sheetClone->type == HealthCareSheetType::CONSULTATION) {
                                        $item->dosage = $prescriptions[$itemIndex]['dosage'];
                                        $item->quantity = $prescriptions[$itemIndex]['quantity'];
                                    } else {
                                        $item->unit_price = $prescriptions[$itemIndex]['unit_price'];
                                        $item->insured_paid_amount = $parts->insured_part * $item->unit_price * ($item->quantity ?? 1);
                                        $item->insurer_paid_amount = $parts->insurer_part * $item->unit_price * ($item->quantity ?? 1);
                                    }
                                }
                            }

                            if ($relation == 'exams') {
                                if (in_array($i->id, $examsIds)) {
                                    $itemIndex = array_search($i->id, $examsIds);
                                    $delete = $exams[$itemIndex]['to_delete'] ?? false;
                                    if ($delete) {
                                        continue;
                                    }

                                    if ($sheetClone->type == HealthCareSheetType::CONSULTATION) {
                                        $item->description = $exams[$itemIndex]['description'];
                                        $item->quantity = $exams[$itemIndex]['quantity'];
                                    } else {
                                        $item->unit_price = $exams[$itemIndex]['unit_price'];
                                        $item->insured_paid_amount = $parts->insured_part * $item->unit_price * ($item->quantity ?? 1);
                                        $item->insurer_paid_amount = $parts->insurer_part * $item->unit_price * ($item->quantity ?? 1);
                                    }
                                }

                            }

                            unset($item->laravel_through_key);
                            $item->created_at = $item->updated_at = $datetime;
                            $item->push();

                            if ($relation == 'performances') {
                                NhHealthCareSheetsPerformance::create([
                                    'sheet_id' => $sheetClone->id,
                                    'performance_id' => $item->id,
                                    'created_at' => $datetime, 'updated_at' => $datetime,
                                ]);
                            }

                            if ($relation == 'prescriptions') {
                                NhHealthCareSheetsPrescription::create([
                                    'sheet_id' => $sheetClone->id,
                                    'prescription_id' => $item->id,
                                    'created_at' => $datetime, 'updated_at' => $datetime,
                                ]);
                            }

                            if ($relation == 'exams') {
                                NhHealthCareSheetsExam::create([
                                    'sheet_id' => $sheetClone->id,
                                    'exam_id' => $item->id,
                                    'created_at' => $datetime, 'updated_at' => $datetime,
                                ]);
                            }
                        }
                    }

                    // Calculer les parts de l'assurance et l'assuré pour cette feuille de soins
                    $this->calculateInsuranceAmounts($sheetClone);

                    // Retirer la couverture d'assurance précedement octroyée
                    $beneficiary = $sheetClone->beneficiary;
                    if ($beneficiary) {
                        $beneficiary->insurance_coverage_amount -= $sheet->insurance_amount;
                        $beneficiary->save();
                    } else {
                        $sheetClone->insurance->insurance_coverage_amount -= $sheet->insurance_amount;
                        $sheetClone->insurance->save();
                    }

                    // Verification de la limite de couverture
                    $this->verifyInsuranceCoverageAmount($nhConfig, $sheetClone->insurance, $sheetClone, $beneficiary ?? null, $currency_code);
                    // Mettre à jour la couverture d'assurance de l'assuré
                    $this->updateInsuranceCoverageAmount($sheetClone, $sheetClone->insurance, $datetime, $beneficiary ?? null);


                    $totalInsuredAmount += $sheetClone->insured_amount;
                    $totalInsurerAmount += $sheetClone->insurance_amount;
                    $sheetClone->date = $sheetClone->created_at->format('d/m/Y');
                    $sheetsCloned[] = $sheetClone;
                }

                $directoryName = '/invoices-docs/';
                $filename = $invoiceClone->period_start_at->format('dmY') . '_' . $invoiceClone->period_end_at->format('dmY') . '_' . $agent->code_membre . '_AM_' . time() . '.pdf';


                $invoiceClone->invoice_id .= '/AM';
                $invoiceClone->reason = null;
                $invoiceClone->old_invoice_id = $invoice->id;
                $invoiceClone->amount = $totalInsuredAmount + $totalInsurerAmount;
                $invoiceClone->insured_amount = $totalInsuredAmount;
                $invoiceClone->insurer_amount = $totalInsurerAmount;
                $invoiceClone->file_url = config('services.app_url') . $directoryName . $filename;
                $invoiceClone->save();

                // Generer le PDF de la nouvelle facture

                $invoiceClone->amount = $this->toMoneyWithCurrencyCode($invoiceClone->amount, $currency_code);
                $invoiceClone->insured_amount = $this->toMoneyWithCurrencyCode($invoiceClone->insured_amount, $currency_code);
                $invoiceClone->insurer_amount = $this->toMoneyWithCurrencyCode($invoiceClone->insurer_amount, $currency_code);
                $invoiceClone->sheets = $sheetsCloned;
                $invoiceClone->agent = $agent;
                $invoiceClone->hyper = $hyper;
                $invoiceClone->period = $invoiceClone->period_start_at->format('d/m/Y') . ' ' . trans('messages.to') . ' ' . $invoiceClone->period_end_at->format('d/m/Y');

                $title = $agent->lastname . ' - ' . trans('messages.invoice') . ' ' . $invoice->invoice_id;
                $message = __('messages.generated_invoice_mail', ['agent' => $agent->lastname, 'period' => $invoice->period]);

                $file = PDF::loadView('emails.invoice', $invoiceClone->toArray())->setPaper('a4', 'landscape')->setWarnings(false)->save(public_path($directoryName . $filename));

                $message = trans('messages.invoice_accepted_updated');
            }
            $invoice->updated_at = $datetime;
            $invoice->save();
            DB::commit();
            return $this->successResponse($message);

        } catch (Throwable $e) {
            Log::error($e->getMessage() . '\n' . $e->getTraceAsString());
            DB::rollBack();
            return $this->errorResponse(trans('errors.unexpected_error'), 500);
        }
    }
}