/*

MIT License http://www.opensource.org/licenses/mit-license.php

Author Tobias Koppers @sokra

*/

var DependenciesBlockVariable = require("./DependenciesBlockVariable");

function DependenciesBlock() {

this.dependencies = [];

this.blocks = [];

this.variables = [];

}

module.exports = DependenciesBlock;

DependenciesBlock.prototype.addBlock = function(block) {

this.blocks.push(block);

}

DependenciesBlock.prototype.addVariable = function(name, expression, dependencies) {

for(var i = 0; i < this.variables.length; i++) {

var v = this.variables[i];

if(v.name == name && v.expression == expression) return;

}

this.variables.push(new DependenciesBlockVariable(name, expression, dependencies));

}

DependenciesBlock.prototype.addDependency = function(dependency) {

this.dependencies.push(dependency);

}

DependenciesBlock.prototype.updateHash = function(hash) {

this.dependencies.forEach(function(d) {

d.updateHash(hash);

});

this.blocks.forEach(function(b) {

b.updateHash(hash);

});

this.variables.forEach(function(v) {

v.updateHash(hash);

});

};

DependenciesBlock.prototype.disconnect = function() {

function disconnect(i) {

i.disconnect();

}

this.dependencies.forEach(disconnect);

this.blocks.forEach(disconnect);

this.variables.forEach(disconnect);

};