/*

	Copyright (c) 2020, 2023, The Unified Company.

	This code is part of Unify.

	This program is free software; you can redistribute it and/or modify
	it under the terms of the ESA Software Community License - Strong Copyleft LICENSE,
	as published by the ESA.
	See the ESA Software Community License - Strong Copyleft LICENSE, for more details.

	https://unifyjs.org 

*/


import tools	 					from './tools.js';

import serverCollection	 			from '../server/collection/collection.js';

import defaultObject	 			from './defaultObject.js';

import unify	 					from './unify.js';


export default class collection extends serverCollection {

	__className			= "collection";

	type				= "collection";

	rows 				= new Array();

	filterObject		= false;

	object;

	tableName;

	parentName;


	constructor( object ){

		super();
		
		if( object ) {
		
			this.object = object;
			
		}

		unify.extend( this )

	}

	createInstance() {

		return new this.object();

	}
	

	
	getParentName() {
	
		var parentTable = this.parent;
		
		//console.log("get table from this", this.parent);
	


		if( !tools.objectIsTable( this.parent ) ) {
		
			parentTable = tools.getTableFromObject( this.parent );

		}
		
		var parentClassName = tools.getClassName( parentTable );

		// todo: not good but works -> userB.friends.remove( userA ); selectuser.checkbox.js doesnt
		// work if this is disabled. userB is a collection but doesnt get an parentName
		// with this function
		if( !parentClassName ) {

			parentClassName = this.tableName;

		}
		
		return parentClassName;

	}


	getTableName() {

		var tableInstance = new this.object();

		return tools.getClassName( tableInstance );

	}

	getRight( update = true ) {
	
		if( update ) {
		
			this.update();
		
		}
	
		var tableName = this.tableName;
	
		if( tableName == this.parentName ) {
		
			tableName += 0;
		
		}
		
		return tableName;
		
	}
	
	getLeft( update = true ) {
	
		if( update ) {
		
			this.update();
		
		}
		
		if( this.parentName ) {

			var parentName = this.parentName;

		} else {

			var parentName = this.getParentName();
		}
		
	
		if( this.tableName == parentName ) {
		
			parentName += 1;
		
		}
		
		return parentName;
	
	}


	update() {

		if( !this.enabled) {
		
			this.tableName		= this.getTableName();
			
			if( this.parent ) {
			
				this.parentName	= this.getParentName();
			
			}
		
		}

	}

	getColumnName() {
	
		var parentClassName = this.getParentName();
		
		return parentClassName + "_" + this.propertyName + "_id";

	}

	set( objects ){
	
		this.rows = objects;
	
	}
	
	addObject( object ) {
	
		this.rows.push( object );
	
	}
	
	filter( by, term ) {
	
		switch( by.toLowerCase() ) {
		
			case "custom":
			
				this.filterCustom( term );
			
			break;
		
			case "class":
			
				this.filterByClassName( term );
			
			break;
			
			case "name":
			
				this.filterByName( term );
			
			break;
			
			case "id":
			
				this.filterByID( term );
			
			break;
			
			case "parent":
			
				this.filterByParent( term );
			
			break;
			
			case "parentName":
			
				this.filterByParentName( term );
			
			break;
			
			case "type":
			
				this.filterByType( term );
			
			break;
			
		}
	
	}
	
	filterCustom( func ) {
	
		var objects = this.rows;
		
		this.rows = new Array();

		for( var c = 0; c < objects.length; c++ ) {
		
			var object 		= objects[c];
	
			if( func( object )  ) {
			
				this.rows.push(object);
				
			}
		}
	
	}
	
	filterByType( type ) {
	
		var objects = this.rows;
		
		this.rows = new Array();

		for( var c = 0; c < objects.length; c++ ) {
		
			var object 		= objects[c];
	
			if( object.type == type ) {
			
				this.rows.push(object);
				
			}
		}
	}

	filterByCollection( collection_a ) {
	
		this.rows = new Array();
		
		var objects = this.rows;

		for( var c = 0; c < objects.length; c++ ) {
		
			var renderCollection	= objects[c];

			var collection_b 		= renderCollection.getCollection();
			
			if( collection_b.propertyName == collection_a.propertyName ) {
			
				this.rows.push( object );
			
			}
			
		}
	
	}
	
	filterByClassName( className ) {
	
		var objects = this.rows;
		
		this.rows = new Array();

		for( var c = 0; c < objects.length; c++ ) {
		
			var object 		= objects[c];
	
			if( tools.getClassName( object ) == className ) {
			
				this.rows.push( object );
				
			}
		}
		
	}
	
	filterByName( name ) {
	
		var objects = this.rows;
		
		this.rows = new Array();

		for( var c = 0; c < objects.length; c++ ) {
		
			var object 		= objects[c];
	
			if( object.propertyName == name ) {
			
				this.rows.push( object );
				
			}
		}
		
	}
	
	filterByID( id ) {
	
		var objects = this.rows;
		
		this.rows = new Array();

		for( var c = 0; c < objects.length; c++ ) {
		
			var object = objects[c];
	
			if( object.id == id ) {
			
				this.rows.push( object );
				
			}
		}
		
	}
	
	filterByParent( parent ) {
	
		this.filterByParentName( tools.getClassName( parent ) );
	
	}
	
	filterByParentName( parentName ) {
	
		var objects = this.rows;
		
		this.rows = new Array();

		for( var c = 0; c < objects.length; c++ ) {
		
			var object 		= objects[c];
	
			if( tools.getClassName( object.parent ) == parentName ) {
			
				this.rows.push( object );
				
			}
		}
	
	}
	
	getFirstRow() {
	
		return this.rows[0];
	
	}

}