<?php

if (!defined('BASEPATH')) {
    exit('No direct script access allowed');
}

class Itemstock_model extends MY_Model
{   

    public function __construct()
    {
        parent::__construct();
    }

    public function get($id = null)
    {
        $this->db->select('`item_stock`.*, `item`.`name`,`item`.`id` as itemid, `item`.`item_category_id`, `item`.`description` as des, `item_category`.`item_category`, `item_supplier`.`item_supplier`, `item_store`.`item_store`')->from('item_stock');
        $this->db->join('item ', 'item.id = item_stock.item_id');
        $this->db->join('item_category', 'item.item_category_id = item_category.id');
        $this->db->join('item_supplier', 'item_stock.supplier_id = item_supplier.id');
        $this->db->join('item_store', 'item_store.id = item_stock.store_id', 'left outer');
        if ($id != null) {
            $this->db->where('item_stock.id', $id);
        } else {
            $this->db->order_by('item_stock.id', 'DESC');
        }
        $query = $this->db->get();
        if ($id != null) {
            return $query->row_array();
        } else {
            return $query->result_array();
        }
    }

    public function getAllitemstockRecord()
    {
        $this->datatables
            ->select('item_stock.*, item.name,item.id as itemid, item.item_category_id,item.description as des, item_category.item_category,item_supplier.item_supplier,item_store.item_store,generated_by_staff.name as generated_byname,generated_by_staff.surname as generated_bysurname,generated_by_staff.employee_id as generated_byemployee_id')
            ->join('item ', 'item.id = item_stock.item_id')
            ->join('item_category', 'item.item_category_id = item_category.id')
            ->join('item_supplier', 'item_stock.supplier_id = item_supplier.id')
            ->join('item_store', 'item_store.id = item_stock.store_id', 'left outer')
            ->join('staff as generated_by_staff', 'generated_by_staff.id = item_stock.generated_by', "left") 
            ->searchable('item.name,item_category.item_category,item_supplier.item_supplier,item_store.item_store,item_stock.date,item_stock.quantity,item_stock.purchase_price,generated_by_staff.name as generated_byname')
            ->orderable('item.name,item_category.item_category,item_supplier.item_supplier,item_store.item_store,item_stock.date,item_stock.quantity,item_stock.purchase_price,generated_by_staff.name as generated_byname')
            ->sort('item_stock.id', 'desc')
            ->from('item_stock');
        return $this->datatables->generate('json');
    } 

    public function remove($id)
    {   
        $this->db->trans_start(); # Starting Transaction
        $this->db->trans_strict(false); # See Note 01. If you wish can remove as well
        //=======================Code Start===========================
        $this->db->where('id', $id);
        $this->db->delete('item_stock');
        $message = DELETE_RECORD_CONSTANT . " Where Item Stock id " . $id;
        $action = "Delete";
        $record_id = $id;
        $this->log($message, $record_id, $action);
        //======================Code End==============================
        $this->db->trans_complete(); # Completing transaction
        /* Optional */
        if ($this->db->trans_status() === false) {
            # Something went wrong.
            $this->db->trans_rollback();
            return false;
        } else {
            return $record_id;
        }
    }

    /**
     * This function will take the post data passed from the controller
     * If id is present, then it will do an update
     * else an insert. One function doing both add and edit.
     * @param $data
     */
    public function add($data)
    {   
        $this->db->trans_start(); # Starting Transaction
        $this->db->trans_strict(false); # See Note 01. If you wish can remove as well
        //=======================Code Start===========================
        if (isset($data['id']) && $data['id'] != '') {
            $this->db->where('id', $data['id']);
            $this->db->update('item_stock', $data);
            $message = UPDATE_RECORD_CONSTANT . " For Item Stock id " . $data['id'];
            $action = "Update";
            $record_id = $data['id'];
            $this->log($message, $record_id, $action);
            //======================Code End==============================
            $this->db->trans_complete(); # Completing transaction
            /* Optional */
            if ($this->db->trans_status() === false) {
                # Something went wrong.
                $this->db->trans_rollback();
                return false;
            } else {
                return $record_id;
            }
        } else {
            $this->db->insert('item_stock', $data);
            $insert_id = $this->db->insert_id();
            $message = INSERT_RECORD_CONSTANT . " On Item Stock id " . $insert_id;
            $action = "Insert";
            $record_id = $insert_id;
            $this->log($message, $record_id, $action);
            //======================Code End==============================
            $this->db->trans_complete(); # Completing transaction
            /* Optional */
            if ($this->db->trans_status() === false) {
                # Something went wrong.
                $this->db->trans_rollback();
                return false;
            } else {
                return $insert_id;
            }            
        }
    }

    public function get_currentstock()
    {
        $query     = "SELECT sum(`item_stock`.`quantity`) as available_stock, `item`.`name`, `item`.`item_category_id`, `item`.`description` as `des`, `item_category`.`item_category`, `item_supplier`.`item_supplier`, `item_store`.`item_store`,(SELECT sum(quantity) from item_issue where item.id=item_issue.item_id) as total_issued FROM `item_stock` JOIN `item` ON `item`.`id` = `item_stock`.`item_id` JOIN `item_category` ON `item`.`item_category_id` = `item_category`.`id` JOIN `item_supplier` ON `item_stock`.`supplier_id` = `item_supplier`.`id` LEFT OUTER JOIN `item_store` ON `item_store`.`id` = `item_stock`.`store_id`  group by `item`.`id`";
        $querydata = $this->db->query($query);
        return $querydata->result_array();
    }   
	
	public function getAllitemreportRecord($start_date = null, $end_date = null) 
    {		
		if($start_date != '' && $end_date != '' ){
			$query="  date_format(item_stock.date,'%Y-%m-%d') >='". $start_date."'and date_format(item_stock.date,'%Y-%m-%d') <= '".$end_date."'";
			$this->datatables->where($query);
		}
		
        $this->datatables
            ->select('sum(`item_stock`.`quantity`) as available_stock, `item`.`name`, `item`.`item_category_id`, `item`.`description` as `des`, `item_category`.`item_category`, `item_supplier`.`item_supplier`, `item_store`.`item_store`,IFNULL((SELECT sum(quantity) from item_issue where item.id=item_issue.item_id),0) as total_issued')			
            ->join('item', 'item.id = item_stock.item_id') 	
            ->join('item_category', 'item_category.id = item.item_category_id') 	
            ->join('item_supplier', 'item_supplier.id = item_stock.supplier_id') 	
            ->join('item_store', 'item_store.id = item_stock.store_id','left outer')			
            ->searchable('item_stock.id,item.name,item_category.item_category,item_supplier.item_supplier,item_store.item_store,item_stock.date')             
             ->orderable('`item`.`name`,`item_category`.`item_category`, `item_supplier`.`item_supplier`,`item_store`.`item_store`,available_stock,item_stock.date,null')
			->group_by('item.id')		 
            ->from('item_stock');
        return $this->datatables->generate('json');
    }

    public function get_ItemByBetweenDate($search_type)
    {
        $return    = 1;
        $condition = '';
        if ($search_type == 'period') {
            $this->form_validation->set_rules('date_from', $this->lang->line('date_from'), 'trim|required|xss_clean');
            $this->form_validation->set_rules('date_to', $this->lang->line('date_to'), 'trim|required|xss_clean');
            if ($this->form_validation->run() == false) {
                echo form_error();
                $return = 0;
            } else {
                $from_date  = $this->input->post('date_from');
                $to_date    = $this->input->post('date_to');
                $date_from  = date("Y-m-d", $this->customlib->datetostrtotime($from_date));
                $date_to    = date("Y-m-d", $this->customlib->datetostrtotime($to_date));
                $start_date = $date_from;
                $end_date   = $date_to;
            }
        } else if ($search_type == 'today') {
            $today      = strtotime('today');
            $first_date = date('Y-m-d', $today);
            $start_date = $first_date;
            $end_date   = $first_date;
        } else if ($search_type == 'this_week') {
            $this_week_start = strtotime('-1 week monday');
            $this_week_end   = strtotime('sunday');
            $first_date      = date('Y-m-d', $this_week_start);
            $last_date       = date('Y-m-d', $this_week_end);
            $start_date      = $first_date;
            $end_date        = $last_date;
        } else if ($search_type == 'last_week') {
            $last_week_start = strtotime('-2 week monday');
            $last_week_end   = strtotime('-1 week sunday');
            $first_date      = date('Y-m-d', $last_week_start);
            $last_date       = date('Y-m-d', $last_week_end);
            $start_date      = $first_date;
            $end_date        = $last_date;
        } else if ($search_type == 'this_month') {
            $first_date = date('Y-m-01');
            $last_date  = date('Y-m-t');
            $start_date = $first_date;
            $end_date   = $last_date;
        } else if ($search_type == 'last_month') {
            $month      = date("m", strtotime("-1 month"));
            $first_date = date('Y-' . $month . '-01');
            $last_date  = date('Y-' . $month . '-' . date('t', strtotime($first_date)));
            $start_date = $first_date;
            $end_date   = $last_date;
        } else if ($search_type == 'last_3_month') {
            $month      = date("m", strtotime("-2 month"));
            $first_date = date('Y-' . $month . '-01');
            $firstday   = date('Y-' . 'm' . '-01');
            $last_date  = date('Y-' . 'm' . '-' . date('t', strtotime($firstday)));
            $start_date = $first_date;
            $end_date   = $last_date;
        } else if ($search_type == 'last_6_month') {
            $month      = date("m", strtotime("-5 month"));
            $first_date = date('Y-' . $month . '-01');
            $firstday   = date('Y-' . 'm' . '-01');
            $last_date  = date('Y-' . 'm' . '-' . date('t', strtotime($firstday)));
            $start_date = $first_date;
            $end_date   = $last_date;
        } else if ($search_type == 'last_12_month') {
            $first_date = date('Y-m' . '-01', strtotime("-11 month"));
            $firstday   = date('Y-' . 'm' . '-01');
            $last_date  = date('Y-' . 'm' . '-' . date('t', strtotime($firstday)));
            $start_date = $first_date;
            $end_date   = $last_date;
        } else if ($search_type == 'last_year') {

            $search_year = date('Y', strtotime("-1 year"));
            $first_date  = '01-01-' . $search_year;
            $last_date   = '31-12-' . $search_year;
            $start_date  = $first_date;
            $end_date    = $last_date;
        } else if ($search_type == 'this_year') {
            $search_year = date('Y');
            $first_date  = '01-01-' . $search_year;
            $last_date   = '31-12-' . $search_year;
            $start_date  = $first_date;
            $end_date    = $last_date;
        } else if ($search_type == '') {
            $return = 0;
        }
        if ($return == 1) {
            $condition = " and date_format(item_stock.date,'%Y-%m-%d') between '" . $start_date . "' and '" . $end_date . "'";
        }

        $sql   = "SELECT `item_stock`.*, `item`.`name`, `item`.`item_category_id`, `item`.`description` as `des`, `item_category`.`item_category`, `item_supplier`.`item_supplier`, `item_store`.`item_store` FROM `item_stock` JOIN `item` ON `item`.`id` = `item_stock`.`item_id` JOIN `item_category` ON `item`.`item_category_id` = `item_category`.`id` JOIN `item_supplier` ON `item_stock`.`supplier_id` = `item_supplier`.`id` LEFT OUTER JOIN `item_store` ON `item_store`.`id` = `item_stock`.`store_id` where 1 " . $condition . " ORDER BY `item_stock`.`id` DESC";
        $query = $this->db->query($sql);
        return $query->result();
    }

    public function additemreportRecord($start_date, $end_date) {
   
        $sql="SELECT `item_stock`.*, `item`.`name`, `item`.`item_category_id`, `item`.`description` as `des`, `item_category`.`item_category`, `item_supplier`.`item_supplier`, `item_store`.`item_store` FROM `item_stock` JOIN `item` ON `item`.`id` = `item_stock`.`item_id` JOIN `item_category` ON `item`.`item_category_id` = `item_category`.`id` JOIN `item_supplier` ON `item_stock`.`supplier_id` = `item_supplier`.`id` LEFT OUTER JOIN `item_store` ON `item_store`.`id` = `item_stock`.`store_id` where date_format(item_stock.date,'%Y-%m-%d') >='". $start_date."'and date_format(item_stock.date,'%Y-%m-%d') <= '".$end_date."'"; 
            $this->datatables->query($sql)
              ->searchable('item.name,item_category.item_category,item_supplier.item_supplier,item_store.item_store,item_stock.date,item_stock.quantity,item_stock.purchase_price')
              ->orderable('item.name,item_category.item_category,item_supplier.item_supplier,item_store.item_store,item_stock.date,item_stock.quantity,item_stock.purchase_price')
              ->sort('date_format(item_stock.date, "%m/%e/%Y")','desc')
              ->query_where_enable(TRUE);
        return $this->datatables->generate('json');
    }
}
