<?php

namespace App\Controllers;
use CodeIgniter\RESTful\ResourceController;
use App\Models\PolicyModel;
use App\Models\EnquiryModel;
use App\Models\QuotationModel;
use App\Models\InvoiceModel;
use App\Models\InvoiceItemModel;
use App\Models\InvoiceUtrModel;
use CodeIgniter\Database\Exceptions\DataException;

class InvoiceController extends ResourceController
{
    protected $PolicyModel;
    protected $QuotationModel;
    protected $EnquiryModel;
    protected $InvoiceModel;
    protected $InvoiceItemModel;
    protected $InvoiceUtrModel;
    protected $db;

    public function __construct()
    {
        $this->PolicyModel = new PolicyModel();
        $this->QuotationModel = new QuotationModel();
        $this->EnquiryModel = new EnquiryModel();
        $this->InvoiceModel = new InvoiceModel();
        $this->InvoiceItemModel = new InvoiceItemModel();
        $this->InvoiceUtrModel = new InvoiceUtrModel();
        $this->db = \Config\Database::connect();
    }

    public function invoiceList()
    {
        try {

            $data = $this->InvoiceModel->where('is_active', 1)->orderBy('id', 'DESC')->findAll();

            return $this->respond(['status' => 'success', 'code'   => 200,'data'   => $data ], 200);

        } catch (\Exception $e) {
            return $this->respond(['status' => 'failed', 'code' => 500, 'data' => $e->getMessage()], 500);
        }
    }

    public function findInvoiceWithItems()
    {
        try {
            $id = $this->request->getGet('id');

            if (!$id) {
                return $this->respond(['status' => 'failed', 'code' => 400, 'data' => 'ID is required'], 400);
            }

            $invoice = $this->InvoiceModel->where('id', $id)->first();

            if (!$invoice) {
                return $this->respond(['status' => 'failed', 'code' => 404, 'data' => 'Invoice not found'], 404);
            }

            $items = $this->InvoiceItemModel->select('partner_invoice_items.* , pp.issued_date , pe.name as customer_name , pq.premium_amount')
                                            ->join('partner_policy pp','pp.id = partner_invoice_items.policy_id ', 'left')
                                            ->join('partner_enquiry pe','pe.id = pp.enquiry_id ', 'left')
                                            ->join('partner_quotation pq','pq.id = pp.quotation_id ', 'left')
                                            ->where('partner_invoice_items.invoice_id', $id)
                                            ->where('partner_invoice_items.is_active', 1)
                                            ->findAll();


            return $this->respond([
                'status' => 'success',
                'code'   => 200,
                'data'   => [
                    'invoice' => $invoice,
                    'items'   => $items
                ]
            ], 200);

        } catch (\Exception $e) {
            return $this->respond(['status' => 'failed', 'code' => 500, 'data' => $e->getMessage()], 500);
        }
    }

    public function createOrUpdateInvoice()
    {
        $this->db->transBegin();

        try {
            $input = $this->request->getJSON(true);

            // Basic invoice data
            $invoiceData = [
                'invoice_no'     => $input['invoice_no'] ?? '',
                'invoice_amount' => $input['invoice_amount'] ?? 0,
                'agent_id'       => $input['agent_id'] ?? '',
                'invoice_date'   => $input['invoice_date'] ?? '',
                'payout_status'  => $input['payout_status'] ?? 0,
                'is_active'      => 1,
                'updated_at'     => date('Y-m-d H:i:s'),
                'updated_by'     => $input['updated_by'] ?? 0
            ];

            $invoiceId = $input['id'] ?? null;

            if (!$invoiceId) {

                $invoiceData['created_at'] = date('Y-m-d H:i:s');
                $invoiceData['created_by'] = $input['created_by'] ?? 0;

                $invoiceId = $this->InvoiceModel->insert($invoiceData);

                if (!$invoiceId) { throw new DataException("Failed to create invoice"); }

            } else {
                $this->InvoiceModel->update($invoiceId, $invoiceData);
            }

            // Insert or update items
            if (!empty($input['items']) && is_array($input['items'])) {

                foreach ($input['items'] as $item) {

                    $itemData = [
                        'invoice_id'        => $invoiceId,
                        'policy_id'         => $item['policy_id'],
                        'policy_no'         => $item['policy_no'],
                        'commission_amount' => $item['commission_amount'] ?? 0,
                        'is_active'         => $item['is_active'] ?? 1,
                        'updated_at'        => date('Y-m-d H:i:s'),
                        'updated_by'        => $input['updated_by'] ?? 0
                    ];

                    // UPDATE (if id exists)
                    if (!empty($item['id'])) {

                        $this->InvoiceItemModel->update($item['id'], $itemData);

                    }else {  // INSERT (if id missing)

                        $itemData['created_at'] = date('Y-m-d H:i:s');
                        $itemData['created_by'] = $input['created_by'] ?? 0;
                        $this->InvoiceItemModel->insert($itemData);
                    }
                }
            }


            if ($this->db->transStatus() === false) {
                $this->db->transRollback();
                throw new DataException("Transaction failed");
            }

            $this->db->transCommit();

            return $this->respond([
                'status' => 'success',
                'code'   => 200,
                'data'   => ['invoice_id' => $invoiceId]
            ], 200);

        } catch (\Exception $e) {
            $this->db->transRollback();
            return $this->respond(['status' => 'failed', 'code' => 500, 'data' => $e->getMessage()], 500);
        }
    }

    public function deleteInvoice()
    {
        try {
            $id = $this->request->getGet('id');

            if (!$id) {
                return $this->respond(['status' => 'failed', 'code' => 400, 'data' => 'ID is required'], 400);
            }

            $this->InvoiceModel->update($id, ['is_active' => 0]);
            $this->InvoiceItemModel->where('invoice_id', $id)->set(['is_active' => 0])->update();

            return $this->respond(['status' => 'success', 'code' => 200, 'data' => 'Invoice deleted'], 200);

        } catch (\Exception $e) {
            return $this->respond(['status' => 'failed', 'code' => 500, 'data' => $e->getMessage()], 500);
        }
    }

    public function getCommissionRateList()
    {
        try {
            $input = $this->request->getJSON(true);

            if (empty($input['agent_id']) || empty($input['issued_date'])) {
                return $this->respond([
                    'status' => 'failed',
                    'code'   => 400,
                    'message'=> 'agent_id and issued_date are required'
                ], 400);
            }


            $data = $this->PolicyModel
                ->select('partner_policy.policy_number as policy_no,partner_policy.id as policy_id , partner_policy.issued_date, partner_policy.commission_amount, pe.name as customer_name , pq.premium_amount')
                ->join(
                    'partner_enquiry pe',
                    'pe.id = partner_policy.enquiry_id AND pe.broker_id = ' . (int)$input['broker_id'],
                    'left'
                )
                ->join('partner_quotation pq','pq.id = partner_policy.quotation_id ', 'left')
                ->where('partner_policy.agent_id', $input['agent_id'])
                ->where('partner_policy.issued_date <=', date('Y-m-d', strtotime($input['issued_date'])))
                ->where('partner_policy.is_active', 1)
                ->findAll();


            return $this->respond([
                'status' => 'success',
                'code'   => 200,
                'data'   => $data
            ], 200);

        } catch (\Exception $e) {
            return $this->respond([
                'status' => 'failed',
                'code'   => 500,
                'message'=> $e->getMessage()
            ], 500);
        }
    }


}