<?php if ( ! defined('BASEPATH')) exit('No direct script access allowed');

class UserRole extends CI_Model {
    private $_table = "user_role";
    private $_privs_table = "user_role_privs";
    private $_attributes = [
        'role_id' => "",
        'name' => "",
        'privs' => [],
    ];
    
    public function __construct() {
        parent::__construct();
    }

    public function all($type = "normal")
    {
        $this->db->select("r.role_id, r.name, p.privs");
        // $this->db->from("{$this->_table} r");
        $this->db->join("{$this->_privs_table} p", "r.role_id = p.role_id");        
        $this->db->where_not_in("r.role_id", [
            USER_ROLES['superadmin'],
            USER_ROLES['regular'],
            // USER_ROLES['student'],
            // USER_ROLES['shareholder'],
            // USER_ROLES['sponsored']
        ]);
        $this->db->where('r.deletedAt IS NULL');
        $this->db->where('p.deletedAt IS NULL');
        // $query = ($this->db->query('SELECT * FROM user_role WHERE role_id NOT IN ? ORDER BY role_id DESC', [
        //     [USER_ROLES['superadmin'],
        //     USER_ROLES['subscriber']]
        //     ]));
        if ($type == "normal") {
            return ($this->db->get("{$this->_table} r"))->result();
        } else {
            $draw = intval($this->input->post("draw"));
            $start = intval($this->input->post("start"));
            $length = intval($this->input->post("length"));
            
            $this->db->group_start();
            if ($this->input->post("search")) {
                $this->db->like("name", $this->input->post("search")["value"]);
                $this->db->or_like("privs", $this->input->post("search")["value"]);
            }
            if ($this->input->post("order")) {
                $this->db->order_by("role_id", "ASC");
            }
            $this->db->group_end();
            
            $query = $this->db->get("{$this->_table} r");
            $data = [];
            foreach ($query->result() as $r) {
                $data[] = [
                    "role_id" => $r->role_id,
                    "name" => $r->name,
                    "privs" => $r->privs
                ];
            }
            
            return [
                "draw" => $draw,
                "recordsTotal" => $query->num_rows(),
                "recordsFiltered" => $query->num_rows(),
                "data" => $data
            ];
        }
    }
    
    public function __set($property, $value) {
        $this->_attributes[$property] = $value;
    }
    
    public function attribute($property) {
        return $this->_attributes[$property];
    }
    
    public function allAttributes() {
        return $this->_attributes;
    }

    public function roles() {
        // Get all roles
        $this->db->select('role_id, name');
        $this->db->where('isBOUser', 1);
        $this->db->where('deletedAt IS NULL');
        $this->db->where_not_in("role_id", [
            USER_ROLES['superadmin'],
            USER_ROLES['regular'],
            // USER_ROLES['student'],
            // USER_ROLES['shareholder'],
            // USER_ROLES['sponsored']
        ]);
        return $this->db->get($this->_table)->result();
    }
    
    public function save() {
        if ($this->hasDuplicate()) {
            return [
                "mtype" => "error",
                "message" => "Duplicate entry"
            ];
        }
        foreach (PAGE_CODE as $page => $code) {
            if (!array_key_exists($code, $this->attribute('privs'))) {
                $this->_attributes["privs"][$code] = [];
            }
        }
        /* Save user role */
        $saveRole = $this->db->query(
            "INSERT INTO {$this->_table} (name) VALUES (?)", [
                $this->attribute('name'),
            ]);
            
        if ($saveRole) {
            $role_id = $this->db->insert_id();
            /* Set role privileges */
            $saveRolePrivs = $this->db->query(
                "INSERT INTO {$this->_privs_table} (role_id, privs) VALUES (?, ?)", [
                    $role_id,
                    json_encode($this->attribute('privs'))
                ]);
                
            return true;
        }
    }
    
    public function update() {
        if ($this->hasDuplicate()) {
            return [
                "mtype" => "error",
                "message" => "Duplicate entry"
            ];
        }
        foreach (PAGE_CODE as $page => $code) {
            if (!array_key_exists($code, $this->attribute('privs'))) {
                $this->_attributes["privs"][$code] = [];
            }
        }
        /* Save user role */
        $saveRole = $this->db->query(
            "UPDATE {$this->_table} SET name = ? WHERE role_id = ?", [
                $this->attribute('name'),
                $this->attribute('role_id'),
            ]);
            
        if ($saveRole) {
            /* Update role privileges */
            $saveRolePrivs = $this->db->query(
                "UPDATE {$this->_privs_table} SET privs = ? WHERE role_id = ?", [
                    json_encode($this->attribute('privs')),
                    $this->attribute('role_id'),
                ]);
                
            return true;
        }
    }

    public function delete()
    {
        $this->db->set('deletedAt', 'NOW()', false);
        $this->db->where('role_id', $this->attribute('role_id'));
        $this->db->update($this->_table);

        $this->db->set('deletedAt', 'NOW()', false);
        $this->db->where('role_id', $this->attribute('role_id'));
        $deleted = $this->db->update($this->_privs_table);
        
        return true;
    }

    public function hasUserDependency() {
        // Check user dependency before deleting
        $this->db->select('role_id');
        $this->db->where('role_id', $this->attribute('role_id'));
        $this->db->where_not_in('status', [0]);
        $this->db->limit(1);
        return $this->db->get('user')->num_rows();
    }

    public function hasDuplicate() {
        if ($this->attribute('role_id') != '') {
            /* Do not let updates to superadmin account */
            if ($this->attribute('role_id') == USER_ROLES['superadmin']) {
                return false;
            }
            
            $record = $this->db->query(
                "SELECT * FROM {$this->_table} WHERE name = ? AND role_id != ? AND deletedAt IS NULL", [
                    $this->attribute('name'),
                    $this->attribute('role_id'),
                ]);
        } else {
            $record = $this->db->query(
                "SELECT * FROM {$this->_table} WHERE name = ? AND deletedAt IS NULL", [
                    $this->attribute('name'),
                ]);
        }
        return $record->num_rows() > 0 ? true:false;
    }

    public function allBORoles() {
        return $this->db->query("SELECT role_id FROM {$this->_table} WHERE isBOUser = 1 AND deletedAt IS NULL")->result_array();
    }

    public function roleHasPrivelege($role_id) {
        return $this->db->query("SELECT * FROM {$this->_privs_table} WHERE role_id = ? AND deletedAt IS NULL", [$role_id])->row_array();
    }

    public function allRolePriveleges() {
        return $this->db->query("SELECT * FROM {$this->_privs_table} WHERE deletedAt IS NULL")->result_array();
    }

    public function deleteUserRolePrivs($role_id) {
        $this->db->query("DELETE FROM {$this->_privs_table} WHERE role_id = ?", [$role_id]);
    }

    public function storeUserRolePrivs($role_id, $privs) {
        $this->db->query(
            "INSERT INTO {$this->_privs_table}(role_id, privs) VALUES(?, ?)", [
                $role_id, $privs
            ]
        );
    }
}