<?php

namespace App\Controllers\Backend;

use App\Controllers\BaseController;
use CodeIgniter\HTTP\ResponseInterface;
use App\Models\PwpModel;
use CodeIgniter\RESTful\ResourceController;


class PwpController extends ResourceController
{
    protected $pwpModel;

    public function __construct()
    {
        $this->pwpModel = new PwpModel();
        $this->db = db_connect();
    }

    public function index()
    {
        $pwps = $this->pwpModel->findAll();
        foreach ($pwps as &$pwp) {
            $selectedIds = array_filter(array_map('trim', explode(',', $pwp['selected_item'])));
            $pwp['selected_item_details'] = [];

            if (!empty($selectedIds)) {
                $pwp['selected_item_details'] = $this->db->table('menu_items')
                    ->select('id, title, price, status')
                    ->whereIn('id', $selectedIds)
                    ->where('deleted_at', null)
                    ->orderBy("created_at", "ASC")
                    ->get()
                    ->getResultArray();
            }

            $pwpIds = array_filter(array_map('trim', explode(',', $pwp['pwp_item_id'])));
            $pwp['pwp_item_details'] = [];

            if (!empty($pwpIds)) {
                $pwp['pwp_item_details'] = $this->db->table('menu_items')
                    ->select('id, title, price, status')
                    ->whereIn('id', $pwpIds)
                    ->where('deleted_at', null)
                    ->orderBy("created_at", "DESC")
                    ->get()
                    ->getResultArray();
            }
        }

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


    public function create()
    {
        $json = $this->request->getJSON(true);
        if (empty($json['mode']) || empty($json['order_index'])  || empty($json['amount']) || empty($json['amount_type'])) {
            return $this->failValidationErrors('mode, order_index, amount and amount_type are required');
        }
        $pwpItems = is_array($json['pwp_item_id']) ? implode(',', $json['pwp_item_id']) : $json['pwp_item_id'];
        $selectedIds = is_array($json['selected_item']) ? $json['selected_item'] : explode(',', $json['selected_item']);
        $selectedItems = implode(',', $selectedIds);

        $data = [
            'mode' => $json['mode'],
            'order_index' => $json['order_index'],
            'pwp_item_id' => $pwpItems,
            'amount' => $json['amount'],
            'amount_type' => $json['amount_type'],
            'selected_item' => $selectedItems,
        ];

        if (!$this->pwpModel->insert($data)) {
            return $this->fail($this->pwpModel->errors());
        }

        $pwpItemDetails = [];
        if (!empty($pwpItems)) {
            $pwpItemArray = explode(',', $pwpItems);
            $pwpItemDetails = $this->db->table('menu_items')
                ->select('id, title, price')
                ->whereIn('id', $pwpItemArray)
                ->where('status', 'active')
                ->get()
                ->getResultArray();
        }

        $selectedItemDetails = [];
        if (!empty($selectedIds)) {
            $selectedItemDetails = $this->db->table('menu_items')
                ->select('id, title, price')
                ->whereIn('id', $selectedIds)
                ->where('status', 'active')
                ->get()
                ->getResultArray();
        }

        return $this->respondCreated([
            'message' => 'PWP promo created successfully',
            'data' => array_merge($data, [
                'pwp_item_id' => $pwpItems,
                'pwp_item_details' => $pwpItemDetails,
                'selected_item' => $selectedIds,
                'selected_item_details' => $selectedItemDetails
            ])
        ]);
    }

    public function show($id = null)
    {
        $pwp = $this->pwpModel->find($id);

        if (!$pwp) {
            return $this->failNotFound('PWP not found');
        }

        $selectedIds = explode(',', $pwp['selected_item']);
        $pwp['selected_item_details'] = [];

        if (!empty($selectedIds[0])) {
            $pwp['selected_item_details'] = $this->db->table('menu_items')
                ->select('id, title, price, status')
                ->whereIn('id', $selectedIds)
                ->where('status', 'active')
                ->get()
                ->getResultArray();
        }

        return $this->respond($pwp);
    }

    public function update($id = null)
    {
        $json = $this->request->getJSON(true);

        if (empty($json['mode']) || empty($json['order_index']) ) {
            return $this->failValidationErrors('mode, order_index are required');
        }

        $pwpItems = is_array($json['pwp_item_id']) ? implode(',', $json['pwp_item_id']) : $json['pwp_item_id'];
        $selectedIds = is_array($json['selected_item']) ? $json['selected_item'] : explode(',', $json['selected_item']);
        $selectedItems = implode(',', $selectedIds);

        $data = [
            'mode' => $json['mode'],
            'order_index' => $json['order_index'],
            'pwp_item_id' => $pwpItems,
            'amount' => $json['amount'] ?? 0.00,
            'amount_type' => $json['amount_type'] ?? 'amount',
            'selected_item' => $selectedItems,
        ];

        if (!$this->pwpModel->update($id, $data)) {
            return $this->fail($this->pwpModel->errors());
        }

        $selectedItemDetails = [];
        if (!empty($selectedIds)) {
            $selectedItemDetails = $this->db->table('menu_items')
                ->select('id, title, price')
                ->whereIn('id', $selectedIds)
                ->where('status', 'active')
                ->get()
                ->getResultArray();
        }

        return $this->respond([
            'status' => 200,
            'message' => 'PWP promo updated successfully',
            'data' => array_merge($data, [
                'selected_item' => $selectedIds,
                'selected_item_details' => $selectedItemDetails
            ])
        ]);
    }

    public function delete($id = null)
    {
        if (!$this->pwpModel->find($id)) {
            return $this->respond([
                'status' => 404,
                'message' => 'PWP not found'
            ], 404);
        }

        if (!$this->pwpModel->delete($id)) {
            return $this->respond([
                'status' => 500,
                'message' => 'Failed to delete PWP'
            ], 500);
        }

        return $this->respond([
            'status' => 200,
            'message' => 'PWP promo deleted successfully'
        ], 200);
    }


}