Created
March 31, 2017 19:48
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| const repl = require('repl') | |
| const readline = require('readline') | |
| const nil = {_active: false, _nil: true} | |
| // Helper Functions | |
| const callOnEachKey = (object, method_name, ...args) => { | |
| for(let key in object){ | |
| object[key][method_name](...args) | |
| } | |
| } | |
| const filterFactory = (name, fn) => () => { | |
| let self = {} | |
| self.name = name | |
| self.cache = [] | |
| self.original = [] | |
| self.needsUpdate = true | |
| self.proccess = () => { | |
| if (self.needsUpdate) { | |
| self.cache = self.original.filter(fn) | |
| self.needsUpdate = false | |
| } | |
| return self.cache | |
| } | |
| self.setOriginal = (raw) => { | |
| self.original = raw | |
| self.needsUpdate = true | |
| self.proccess() | |
| } | |
| return self | |
| } | |
| const filterInactive = filterFactory('filterInactive', (item) => !item._active) | |
| // Table related | |
| const table = (name, factory, recicle) => { | |
| let items = [] | |
| let filters = {} | |
| let table = {} | |
| const updateFilters = () => { | |
| callOnEachKey(filters, 'setOriginal', items) | |
| } | |
| const _new = (...args) => { | |
| let cached = filters.filterInactive.proccess()[0] | |
| let temp = nil | |
| if(cached){ | |
| temp = factory(cached, ...args) | |
| } else { | |
| temp = factory({},...args) | |
| temp._table = name | |
| temp._id = items.push(temp) -1 | |
| temp._table_obj = table | |
| temp._nil = false | |
| temp._active = true | |
| } | |
| updateFilters() | |
| return temp | |
| } | |
| const addFilter = (filter) => { | |
| filters[filter.name] = filter | |
| filter.setOriginal(items) | |
| } | |
| addFilter(filterInactive()) | |
| table.new = _new | |
| table.name = name | |
| table.factory = factory | |
| table.filters = filters | |
| table.items = items | |
| table.updateFilters = updateFilters | |
| table.addFilter = addFilter | |
| table.free = (object) => { | |
| recicle(object) | |
| object._active = false | |
| updateFilters() | |
| } | |
| return table | |
| } |
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