<?php
    include_once "Reflection.php";
    include_once "Helpers.php";
    function name($name)
    {
        return (
            new tstring($name)
        )->wrap(".", ".", function($item){
            return "`" . $item->match("/^[\"\']?(.*?)[\"\']?$/")[1] . "`";
        });
    }
    function isString($data)
    {
        return  gettype($data) == "string" || $data instanceof tstring;
    }
    class ORM
    {
        public $mode = "select";
        public $database = "";
        public $table = "";
        public $select = [];
        public $where = [];
        public $groupBy = [];
        public $having = [];
        public $orderby = [];
        public $limit = false;
        public $union = [];
        public $set = [];
        public $join = [];
        public $alter = [];
        public $israw = false;
        public $raw = "";
        public static $defaultConnection = null;
        public $connection;
        public function __construct()
        {
            $this->connection = ORM::$defaultConnection;
        }
        public static function name($args)
        {
            return name($args);
        }
        public static function raw($sql)
        {
            $orm = new static();
            $orm->raw = $sql;
            $orm->israw = true;
            return $orm;
        }
        public static function migrate($class)
        {
            $orm = new static();
            $migration = new ORMMigrate();
            $class($migration);
            $orm->connection->migrate($migration);
        }
        public function from($orm)
        {
            foreach (get_class_vars($orm) as $key => $value) {
                $this->{$key} = $value;
            }
        }
        public function table($table)
        {
            $this->table = $table;
            return $this;
        }
        public function database($database)
        {
            $this->database = $database;
            return $this;
        }
        public function select(...$args)
        {
            $this->select = array_merge($this->select, array_map(
                function($item){
                    return new tstring($item);
                },
                $args
            ));
            return $this;
        }
        public function update(...$arguments)
        {
            $this->mode = "update";
            $this->set($arguments);
        }
        public function delete()
        {
            $this->mode = "delete";
        }
        public function insert(...$arguments)
        {
            $this->mode = "insert";
            $this->set($arguments);
        }
        public function renameTable($from, $to)
        {
            $this->mode = "alter";
            $this->alter[] = ["renametable", $from, $to];
        }
        public function renameColumn($from, $to)
        {
            $this->mode = "alter";
            $this->alter[] = ["renamecolumn", $from, $to];
        }
        public function modifyColumn($from, $to)
        {
            $this->mode = "alter";
            $this->alter[] = ["modifyColumn", $from, $to];
        }
        public function addColumn($from)
        {
            $this->mode = "alter";
            $this->alter[] = ["addColumn", $from, $to];
        }
        public function removeColumn($from)
        {
            $this->mode = "alter";
            $this->alter[] = ["addColumn", $from, $to];
        }
        public function union(ORM $orm)
        {
            if($orm->mode == "select")
            {
                $this->union[] = $orm;
            }
        }
        public function limit($offset = 0, $length = false)
        {
            $this->limit = [
                "offset" => $offset,
                "length" => $length
            ];
        }
        public function addWhere($statement, $name, $operator, $value)
        {
            $this->where = array_merge(
                $this->where,
                [
                    $statement, 
                    name($name), 
                    $operator, 
                    $value
                ]
            );
        }
        public function where(...$statements)
        {
            if(
                (count($statements) == 3 && isString($statements[0]) && isString($statements[1]))
            )
            {
                $this->addWhere("and",...$statements);
            }
            else if(
                (count($statements) == 2 && isString($statements[0]))
            )
            {
                $this->addWhere("and",$statements[0],"=",$statements[1]);
            }
            else if(count($statements) == 1 && gettype($statements[0]) == "array")
            {
                foreach ($statements[0] as $key => $value) {
                    if(is_numeric($key))
                    {
                        $this->addWhere("and",...$value);
                    }else{
                        $this->addWhere("and",$key,"=",$value);
                    }
                }
            }
            else if(count($statements) == 1 && gettype($statements[0]) == "string")
            {
                $this->addWhere("and",$statements[0],"IS","null");
            };
            return $this;
        }
        public function whereNot(...$statements)
        {
            if(
                (count($statements) == 3 && isString($statements[0]) && isString($statements[1]))
            )
            {
                $this->addWhere("and",...$statements);
            }
            else if(
                (count($statements) == 2 && isString($statements[0]))
            )
            {
                $this->addWhere("and",$statements[0],"!=",$statements[1]);
            }
            else if(count($statements) == 1 && gettype($statements[0]) == "array")
            {
                foreach ($statements[0] as $key => $value) {
                    if(is_numeric($key))
                    {
                        $this->addWhere("and",...$value);
                    }else{
                        $this->addWhere("and",$key,"!=",$value);
                    }
                }
            }
            else if(count($statements) == 1 && gettype($statements[0]) == "string")
            {
                $this->addWhere("and",$statements[0],"IS","null");
            };
            return $this;
        }
        public function orWhere(...$statements)
        {
            if(count($statements) == 1 && gettype($statements[0]) == "array")
            {
                foreach ($statements[0] as $key => $value) {
                    if(is_numeric($key))
                    {
                        $this->addWhere("or",...$value);
                    }else{
                        $this->addWhere("or",$key,"=",$value);
                    }
                }
            }
            else if(count($statements) == 1 && gettype($statements[0]) == "string")
            {
                $this->addWhere("or",$statements[0],"IS","null");
            }
            else if(count($statements) == 3 && gettype($statements[0]) == "string" && gettype($statements[1]) == "string")
            {
                $this->addWhere("or",...$statements);
            }
            return $this;
        }
        public function orWhereNot(...$statements)
        {
            if(count($statements) == 1 && gettype($statements[0]) == "array")
            {
                foreach ($statements[0] as $key => $value) {
                    if(is_numeric($key))
                    {
                        $this->addWhere("or",...$value);
                    }else{
                        $this->addWhere("or",$key,"!=",$value);
                    }
                }
            }
            else if(count($statements) == 1 && gettype($statements[0]) == "string")
            {
                $this->addWhere("or",$statements[0],"IS NOT","null");
            }
            else if(count($statements) == 3 && gettype($statements[0]) == "string" && gettype($statements[1]) == "string")
            {
                $this->addWhere("or",...$statements);
            }
            return $this;
        }
        public function whereIn($name, $arr)
        {
            $this->where(name($name), "IN", '('. implode(', ',$arr) .')');
            return $this;
        }
        public function orWhereIn($name, $arr)
        {
            $this->orwhere(name($name), "IN", '('. implode(', ',$arr) .')');
            return $this;
        }
        public function whereNotIn($name, $arr)
        {
            $this->where(name($name), "NOT IN", '('. implode(', ',$arr) .')');
            return $this;
        }
        public function orWhereNotIn($name, $arr)
        {
            $this->orwhere(name($name), "NOT IN", '('. implode(', ',$arr) .')');
            return $this;
        }
        public function between($name, $state1, $state2)
        {
            $this->orwhere(name($name), "BETWEEN", $state1 . " AND " . $state2);
            return $this;
        }
        public function groupBy(...$name)
        {
            $this->groupBy = array_merge(
                $this->groupBy,
                ...$name
            );
            return $this;
        }
        public function having(...$name)
        {
            $this->having = array_merge(
                $this->having,
                ...$name
            );
            return $this;
        }
        public function orderBy($name,$mode = "ASC")
        {
            $this->orderBy[] = [$name,$mode];
            return $this;
        }
        public function set($name,$value = false)
        {
            if(is_array($name))
            {
                foreach ($name as $key => $value) {
                    $this->set[] = [
                        name($key),
                        $value
                    ];
                }
            }else{
                $this->set[] = [
                    name($name),
                    $value
                ];
            }
            return $this;
        }
    };

    class ORMMigrate
    {
        use ReflectionHook;
        public $table = "";
        public $charset = "";
        public $columns = [];
        public $modifycolumns = [];
        public $removecolumns = [];
        public function table($name)
        {
            $this->table = name($name);
        }
        public function charset($charset)
        {
            $this->charset = $charset;
        }
        public function callable($name, $type = "int", $property = "")
        {
            $this->columns[name($name).""] = [$type,$property];
        }
        public function setAttribute($name, $value)
        {
            $this->modifycolumns[name($name).""] = $value;
        }
        public function removeAttribute($name)
        {
            $this->removecolumns[] = name($name)."";
        }
    };