<?php

defined('BASEPATH') OR exit('No direct script access allowed');

class Blog extends Admin_Controller {

    public function index() {
        $data['page_title'] = 'Blog';
        $this->renderPage('index', $data);
    }

    public function getBlogs() {
        $postData = $this->input->post();
        $this->validate($postData, 'filter');

        $params = !empty($postData['params']) ? $postData['params'] : null;
        $pageNo = !empty($postData['pageNo']) ? $postData['pageNo'] - 1 : 0;
        $pageSize = !empty($postData['pageSize']) ? $postData['pageSize'] : 10;

        $this->load->model('blog_model');
        $data = $this->blog_model->getBlogs($params, $pageNo, $pageSize);

        echo json_encode($data);
    }

    public function store() {
        $postData = $this->input->post();
        $this->validate($postData);

        $this->load->model('blog_model');

        // Find record with blog_id
        $record = $this->blog_model->getBlogs(['blog_id' => $postData['blog_id']]);

        // If we found a record then return errors
        if(!empty($record['result'])) {
            header('HTTP/1.1 400 Bad Request');
            echo json_encode(['errors' => ['message' => 'This Blog ID had been used']]);
            return; 
        }

        $this->blog_model->store($postData);

        echo json_encode(['message' => 'Added successfully!']);
    }

    public function update() {
        $postData = $this->input->post();
        $this->validate($postData);

        $this->load->model('blog_model');

        // Find record with blog_id
        $record = $this->blog_model->getBlogs(['blog_id' => $postData['blog_id']]);

        // If we found a record then return errors
        if(!empty($record['result']) && $record['result'][0]['id'] != $postData['id']) {
            header('HTTP/1.1 400 Bad Request');
            echo json_encode(['errors' => ['message' => 'This Blog ID had been used']]);
            return; 
        }

        $id = array_shift($postData);

        $this->blog_model->update($id, $postData);

        echo json_encode(['message' => 'Updated successfully!']);
    }

    public function delete() {
        $postData = $this->input->post();

        $this->load->model('blog_model');
        $this->blog_model->delete($postData);

        echo json_encode(['message' => 'Deleted successfully!']);
    }

    protected function validate($data, $type = 'saveOrUpdate') {
        $this->load->library('form_validation');
        $this->form_validation->set_data($data);
        $this->setFormRuleForBlog($type);

        if ($this->form_validation->run() === FALSE) {
            $errors = $this->form_validation->error_array();
            header('HTTP/1.1 400 Bad Request');
            echo json_encode(['errors' => $errors]);
            exit;
        }
    }

    protected function setFormRuleForBlog($type) {
        if ($type === 'filter') {
            $this->form_validation->set_rules('params[blog_id]', 'Blog ID', 'integer');
            $this->form_validation->set_rules('params[status]', 'Status', 'integer');
            return;
        }

        $this->form_validation->set_rules('blog_id', 'Blog ID', 'required|integer');
        $this->form_validation->set_rules('description', 'Description', 'required');
        $this->form_validation->set_rules('status', 'Status', 'integer');
    }

    protected function renderPage($page_name, $data) {
        $this->load->view('admin/view_admin_header', $data);
        $this->load->view('blog/' . $page_name, $data);
        $this->load->view('admin/view_admin_footer', $data);
    }
}