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var Stubs = require('./Stub') |
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var Objects = require('./Utility').Objects |
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/** |
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* Library entrypoint, installs and withdraws global symbols |
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* |
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* @param {object} [context] Global value to populate |
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* |
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* @class |
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* |
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* @implements IStubManager |
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*/ |
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function Manager (context) { |
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var self = this |
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context = context || global |
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self._settings = {} |
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self._stash = null |
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function eachSymbol (callback) { |
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Object.keys(Stubs).forEach(function (symbol) { |
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var configuration = self._settings.global || {} |
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configuration = Objects.merge(configuration, self._settings[symbol] || {}) |
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callback(symbol, Stubs[symbol], configuration) |
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}) |
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} |
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function stash () { |
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if (self._stash) { |
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return |
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} |
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self._stash = {} |
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eachSymbol(function (symbol) { |
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if (context.hasOwnProperty(symbol)) { |
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self._stash[symbol] = context[symbol] |
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} |
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}) |
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} |
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function unstash () { |
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if (!self._stash) { |
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return |
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} |
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eachSymbol(function (symbol) { |
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if (self._stash.hasOwnProperty(symbol)) { |
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context[symbol] = self._stash[symbol] |
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} else { |
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delete context[symbol] |
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} |
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}) |
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delete self._stash |
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} |
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this.setup = function (settings) { |
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self._settings = settings |
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eachSymbol(function (symbol, _, configuration) { |
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if (!context[symbol] || !context[symbol]._setup) { |
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return |
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} |
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context[symbol]._setup(configuration) |
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}) |
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} |
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this.install = function () { |
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stash() |
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eachSymbol(function (symbol, Stub, configuration) { |
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var stub = typeof Stub === 'function' ? new Stub(configuration) : Stub |
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stub._setup && stub._setup(configuration) |
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context[symbol] = stub |
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}) |
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} |
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this.reset = function () { |
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eachSymbol(function (symbol) { |
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context[symbol] && context[symbol]._reset && context[symbol]._reset() |
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}) |
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} |
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this.flush = function () { |
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eachSymbol(function (symbol) { |
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context[symbol] && context[symbol]._flush && context[symbol]._flush() |
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}) |
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} |
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this.uninstall = function () { |
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self.flush() |
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unstash() |
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} |
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} |
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module.exports = { |
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Manager: Manager |
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} |
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