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import hosts from './hosts'
import { backupDB } from './backupDB';
function fetchDB(cb) {
let raw_db;
fetch(hosts.db, {
method: 'GET'
}).then(res => {
return res.json()
}).then(json => {
raw_db = parse(json)
return fetch(hosts.comments, {
method: 'GET',
})
}).then(res => {
return res.json()
}).then(json => {
raw_db.comments = json.reverse()
cb(raw_db)
}).catch((err) => {
console.warn(err)
})
}
function backup() {
return parse(backupDB)
}
function parse(db) {
let { page, ...parsed } = db
parsed.page = {}
parsed.timeline = parsed.timeline
.filter((el) => ! el.disabled)
.sort((a,b) => a.__index<b.__index?-1:a.__index===b.__index?0:1)
Object.values(page).forEach((el) => {
parsed.page[el.id] = el
})
parseKeywords(parsed)
parsed.comments = []
return parsed
}
function parseKeywords(db){
const counts = {}
db.about = db.about[0]
db.drone = db.drone[0]
db.stream = db.stream[0]
db.timeline.forEach((event) => {
const dedupe = {}
event.keywords = event.keywords.replace(/\n/, ' ').split('#')
.map((t) => (t || '').trim().toLowerCase())
.filter((t) => !!t.length)
.map((t) => {
if (t in dedupe) return
dedupe[t] = 1
const caps = capitalize(t)
counts[caps] = counts[caps] || 0
counts[caps] += 1
return caps
})
})
db.timeline.forEach((event) => {
event.keywords = event.keywords.filter( (t) => counts[t] > 1 )
})
}
const shortWords = makeLookup('of and to')
const allcaps = makeLookup('usa us cia fbi nsa ii nasa uav cctv gchq')
function makeLookup(s) {
const lookup = {}
s.split(' ').forEach( (t) => lookup[t] = true )
return lookup
}
function capitalize(s) {
return s.replace(/-/,' ').split(' ').map(capitalizeWord).join(' ')
}
function capitalizeWord(s) {
if (allcaps[s]) return s.toUpperCase()
if (shortWords[s]) return s
return s.charAt(0).toUpperCase() + s.slice(1)
}
export default { fetch: fetchDB, backup, hosts }
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