<?php
/**
 * core/database_model.php
 *
 * The class provides some basic functionality for models that interact
 * with the database.
 *
 * @version 3.0
 * @author  Joey Kimsey <Joey@thetempusproject.com>
 * @link    https://TheTempusProject.com/Core
 * @license https://opensource.org/licenses/MIT [MIT LICENSE]
 */
namespace TheTempusProject\Bedrock\Classes;

use TheTempusProject\Canary\Bin\Canary as Debug;
use TheTempusProject\Bedrock\Functions\Check;
use TheTempusProject\Bedrock\Bedrock;

class DatabaseModel extends Model {
    public $databaseMatrix;
    public $tableName;

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

    public function enabled() {
        if ( empty( $this->enabled ) ) {
            $this->enabled = self::$db->enabled();
        }
        return $this->enabled;
    }

    public function filter( $data, $params = [] ) {
        return $data;
    }

    /**
     * This method will remove all the installed model components.
     *
     * @return bool - If the uninstall was completed without error
     */
    public function uninstall() {
        parent::uninstall();
        $this->uninstallTable();
        return true;
    }

    public function rowMatrixToArray( $row_matrix ) {
        $row_array = [];
        $row_array['row_name'] = array_shift( $row_matrix );
        $row_array['row_type'] = array_shift( $row_matrix );
        $row_array['length'] = array_shift( $row_matrix );
        if ( !empty( $row_matrix ) ) {
            $row_array['is_null'] = array_shift( $row_matrix );
        } else {
            $row_array['is_null'] = true;
        }
        if ( !empty( $row_matrix ) ) {
            $row_array['default_value'] = array_shift( $row_matrix );
        } else {
            $row_array['default_value'] = null;
        }
        if ( !empty( $row_matrix ) ) {
            $row_array['comment'] = array_shift( $row_matrix );
        } else {
            $row_array['comment'] = '';
        }
        return $row_array;
    }

    /**
     * Install db tables needed for the model.
     *
     * @return {bool}
     */
    public function installTable() {
        // should have some sort of DELTA functionality and safeguards
        if ( empty( $this->tableName ) || empty( $this->databaseMatrix )) {
            Debug::log( 'databaseMatrix is empty' );
            return true;
        }
        if ( false === self::$db->newTable( $this->tableName ) ) {
            return false;
        }
        Debug::log( 'adding a new table named: ' . $this->tableName );
        foreach ( $this->databaseMatrix as $key => $row_matrix ) {
            $row = $this->rowMatrixToArray( $row_matrix );
            self::$db->addField(
                $row['row_name'],
                $row['row_type'],
                $row['length'],
                $row['is_null'],
                $row['default_value'],
                $row['comment'],
            );
        }
        self::$db->createTable();
        return self::$db->getStatus();
    }

    public function uninstallTable() {
        if ( empty( $this->tableName ) ) {
            return;
        }
        return self::$db->removeTable( $this->tableName );
    }

    /**
     * Retrieves a row by its ID and filters it.
     *
     * @param  {int} [$id]
     * @return {object} - The filtered db entry.
     */
    public function findById( $id ) {
        if ( !Check::id( $id ) ) {
            Debug::warn( "$this->tableName fingByID: illegal ID: $id" );
            return false;
        }
        $data = self::$db->get( $this->tableName, ['ID', '=', $id] );
        if ( !$data->count() ) {
            Debug::info( 'No ' . $this->tableName . ' data found.' );
            return false;
        }
        return $this->filter( $data->first() );
    }

    /**
     * Function to delete the specified entry.
     *
     * @param  int|array $ID the log ID or array of ID's to be deleted
     * @return bool
     */
    public function delete( $idArray ) {
        if ( !is_array( $idArray ) ) {
            $idArray = [ $idArray ];
        }
        foreach ( $idArray as $id ) {
            if ( !Check::id( $id ) ) {
                Debug::info( "invalid ID: $id." );
                $error = true;
                continue;
            }
            if ( self::$db->delete( $this->tableName, [ 'ID', '=', $id ] )->error() ) {
                Debug::info( "Error Deleting id: $id" );
                $error = true;
                continue;
            }
            Debug::info( $this->tableName . " deleted: $id" );
        }
        if ( !empty( $error ) ) {
            return false;
        }
        return true;
    }

    /**
     * Function to clear entries of a defined type.
     *
     * @todo  this is probably dumb
     * @param  string $data - The log type to be cleared
     * @return bool
     */
    public function empty() {
        self::$db->delete( $this->tableName, ['ID', '>=', '0'] );
        Debug::info( $this->tableName . ' Cleared' );
        return true;
    }

    /**
     * retrieves a list of paginated (limited) results.
     *
     * @param  array $filter - A filter to be applied to the list.
     * @return bool|object - Depending on success.
     */
    public function listPaginated( $filter = null ) {
        $data = self::$db->getPaginated( $this->tableName, '*' );
        if ( !$data->count() ) {
            Debug::info( $this->tableName . ' - No entries found' );
            return false;
        }
        return $this->filter( $data->results() );
    }

    public function list( $filter = null ) {
        $data = self::$db->get( $this->tableName, '*' );
        if ( !$data->count() ) {
            Debug::info( $this->tableName . ' - No entries found' );
            return false;
        }
        return $this->filter( $data->results() );
    }
}