gistfile1.php

enum Attribute: string {
	UINT          = 'sql_attr_uint';
	BOOL          = 'sql_attr_bool';
	BIGINT        = 'sql_attr_bigint';
	TIMESTAMP     = 'sql_attr_timestamp';
	STR2ORDINAL   = 'sql_attr_str2ordinal';
	FLOAT         = 'sql_attr_float';
	MULTI         = 'sql_attr_multi';
	STRING        = 'sql_attr_string';
	STR2WORDCOUNT = 'sql_attr_str2wordcount';
}

enum Field: string {
	STRING        = 'sql_field_string';
	STR2WORDCOUNT = 'sql_field_str2wordcount';
}

abstract class Source {

	private string $name;

	private Map<string, mixed> $params = Map {
		'type'    => 'plain',
		'docinfo' => 'extern'	
	};

	private Vector<Pair<Attribute, string>> $attributes;
	private Vector<Pair<Field, string>> $fields;
	
	public function __construct() {
		$this->name = __CLASS__;
		$this->params['path'] = "/data/{$this->name}/index";
	}

	public function __set(string $key, mixed $val) : void {
		$this->params[$key] = $val;
	}

	public function __isset(string $key) : bool {
		return isset($this->params[$key]);
	}

	public function __get(string $key) : mixed {
		if (isset($this->params[$key])) {
			return $this->params[$key];
		}

		throw new \OutOfBoundsException("Invalid key passed to Sphinx\Sources\{this->name}::__get");
	}

	public function __unset(string $key) : Map<string, mixed> {
		return $this->params->remove($key);
	}

	public function __toString() : string /* duh */ {
		$output = '';
		foreach ($this->params as $key => $val) {
			$output .= "$key $val\n";
		}

		return $output;
	}

	public function addAttribute(Attribute $type, string $column) {
		$this->attributes[] = Pair {$type, $column };
	}
}