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Copy pathfilterLocations.js
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144 lines (117 loc) · 4.41 KB
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import R from 'ramda'
import { relevantTaxonomies } from './taxonomies'
const weekdays = ['Sunday','Monday','Tuesday','Wednesday','Thursday','Friday','Saturday']
export const isOpen = (services) => {
const now = new Date()
const currentTime = now.getHours() * 100 + now.getMinutes()
const currentDay = weekdays[now.getDay()].toLowerCase()
const isBetween = (num, min, max) => (
num > min && num < max
)
const scheduleContainsCurrentTime = (schedule) => (
currentDay === schedule.weekday.toLowerCase() &&
isBetween(currentTime, schedule.opensAt, schedule.closesAt)
)
const serviceHasMatchingSchedule = (service) => {
if (!service.schedules) return true
return (service.schedules).some(scheduleContainsCurrentTime)
}
return Object.values(services).some(serviceHasMatchingSchedule)
}
// Types!
//
// -- = example
//
// type FilterOptions = {
// categories : List String -- [ 'food', 'housing', 'etc'],
// demographics : List String -- ['C', 'Y', 'A', 'S'],
// gender : String -- 'F',
// hours : String -- 'all',
// }
// type LocationFilterOptions = {
// location : Location,
// options : FilterOptions,
// isValid : Bool,
// }
const DEFAULT_FILTER_OPTIONS = {
categories: [],
demographics: [],
gender: '',
hours: '',
}
// (List a, List b) -> Bool
const doesIntersect = (list1, list2) => {
return list1.some(item => list2.includes(item))
}
// LocationFilterOptions -> LocationFilterOptions
export function categoriesFilter(locationOptions) {
const { location, options: { categories }, isValid } = locationOptions
if (!isValid || categories.length === 0) return locationOptions
const locationCategories = relevantTaxonomies(location.services)
const isStillValid = doesIntersect(categories, locationCategories)
return { ...locationOptions, isValid: isStillValid }
}
// LocationFilterOptions -> LocationFilterOptions
function demographicsFilter(locationOptions) {
const { location, options: { demographics }, isValid } = locationOptions
if (!isValid || demographics.length === 0) return locationOptions
const { services } = location
const isStillValid = Object.values(services).some(service => {
const { eligibility: { age } } = service
if (!age) return true
return doesIntersect(demographics, age)
})
return { ...locationOptions, isValid: isStillValid }
}
// LocationFilterOptions -> LocationFilterOptions
function genderFilter(locationOptions) {
const { location, options, isValid } = locationOptions
if (!isValid || options.gender === '') return locationOptions
const { services } = location
const isStillValid = Object.values(services).some(service => {
const { eligibility: { gender } } = service
if (!gender) return true
return gender === options.gender
})
return { ...locationOptions, isValid: isStillValid }
}
// LocationFilterOptions -> LocationFilterOptions
function hoursFilter(locationOptions) {
const { location, options, isValid } = locationOptions
if (!isValid || options.hours === '') return locationOptions
const { services } = location
const isStillValid = isOpen(services)
return {...locationOptions, isValid: isStillValid }
}
// LocationFilterOptions -> Bool
function filterByOptions(locationAndFilterOptions) {
return R.pipe(
categoriesFilter,
demographicsFilter,
genderFilter,
hoursFilter
)(locationAndFilterOptions).isValid
}
// String -> FilterOptions
function mapOptionsStringToFilterOptions(optionsString) {
const filters = optionsString.split('&').filter(e => e !== '')
return filters.reduce((desired, filterString) => {
const isArrayValues = filterString.includes('[]')
const splitter = isArrayValues ? '[]=' : '='
const [filterName, filterValue] = filterString.split(splitter)
const newDesired = desired
newDesired[filterName] = isArrayValues ? filterValue.split(',') : filterValue
return newDesired
}, DEFAULT_FILTER_OPTIONS)
}
// (String, List Location) -> List Location
export function filterByOptionsString(optionsString, locations) {
const optionsData = mapOptionsStringToFilterOptions(optionsString)
if (!optionsString.includes('hours=open')) {
optionsData['hours'] = '' // this is a hack since i'm not sure why hours was still staying 'open' *scratches head*
// TODO: works fine but should circle back on this!
}
return locations.filter(location => location.services &&
filterByOptions({ location, options: optionsData, isValid: true })
)
}