/* Trip Pane

**

** This pane deals with trips themselves and also

** will look at transactions organized by trip.

**

** This outline pane allows a user to interact with a transaction

** downloaded from a bank statement, annotting it with classes and comments,

** trips, etc

*/

import * as UI from 'solid-ui-jss'

import * as $rdf from 'rdflib'

const ns = UI.ns

export default {

icon: UI.icons.iconBase + 'noun_62007.svg',

name: 'travel expenses',

audience: [ns.solid('PowerUser')],

// Does the subject deserve this pane?

label: function (subject, context) {

const kb = context.session.store

const t = kb.findTypeURIs(subject)

// if (t['http://www.w3.org/2000/10/swap/pim/qif#Transaction']) return "$$";

// if(kb.any(subject, UI.ns.qu('amount'))) return "$$$"; // In case schema not picked up

if (UI.ns.qu('Transaction') in kb.findSuperClassesNT(subject)) {

return 'by Trip'

}

if (t['http://www.w3.org/ns/pim/trip#Trip']) return 'Trip $'

return null // No under other circumstances (while testing at least!)

},

render: function (subject, context) {

const myDocument = context.dom

const kb = context.store

const ns = UI.ns

const CAL = $rdf.Namespace('http://www.w3.org/2002/12/cal/ical#')

const TRIP = $rdf.Namespace('http://www.w3.org/ns/pim/trip#')

const div = myDocument.createElement('div')

div.setAttribute('class', 'transactionPane')

div.innerHTML = '<h2>Trip transactions</h2>'

const complain = function complain (message, style) {

if (style === undefined) style = 'color: grey'

const pre = myDocument.createElement('pre')

pre.setAttribute('style', style)

div.appendChild(pre)

pre.appendChild(myDocument.createTextNode(message))

}

// //////////////////////////////////////////////////////////////////////////////

//

// Body of trip pane

const t = kb.findTypeURIs(subject)

// var me = authn.currentUser()

// Function: Render a single trip

const renderTrip = function renderTrip (subject, thisDiv) {

const query = new $rdf.Query(UI.utils.label(subject))

const vars = ['date', 'transaction', 'comment', 'type', 'in_USD']

const v = {}

vars.forEach(function (x) {

query.vars.push((v[x] = $rdf.variable(x)))

}) // Only used by UI

query.pat.add(v.transaction, TRIP('trip'), subject)

const opt = kb.formula()

opt.add(v.transaction, ns.rdf('type'), v.type) // Issue: this will get stored supertypes too

query.pat.optional.push(opt)

query.pat.add(v.transaction, UI.ns.qu('date'), v.date)

opt.add(v.transaction, ns.rdfs('comment'), v.comment)

query.pat.optional.push(opt)

// opt = kb.formula();

query.pat.add(v.transaction, UI.ns.qu('in_USD'), v.in_USD)

// query.pat.optional.push(opt);

const calculations = function () {

const total = {}

const trans = kb.each(undefined, TRIP('trip'), subject)

// complain("@@ Number of transactions in this trip: " + trans.length);

trans.forEach(function (t) {

let ty = kb.the(t, ns.rdf('type'))

// complain(" -- one trans: "+t.uri + ' -> '+kb.any(t, UI.ns.qu('in_USD')));

if (!ty) ty = UI.ns.qu('ErrorNoType')

if (ty && ty.uri) {

const tyuri = ty.uri

if (!total[tyuri]) total[tyuri] = 0.0

const lit = kb.any(t, UI.ns.qu('in_USD'))

if (!lit) {

complain(' @@ No amount in USD: ' + lit + ' for ' + t)

}

if (lit) {

total[tyuri] = total[tyuri] + parseFloat(lit.value)

// complain(' Trans type ='+ty+'; in_USD "' + lit

// +'; total[tyuri] = '+total[tyuri]+';')

}

}

})

let str = ''

let types = 0

let grandTotal = 0.0

for (const uri in total) {

str += UI.utils.label(kb.sym(uri)) + ': ' + total[uri] + '; '

types++

grandTotal += total[uri]

}

complain('Totals of ' + trans.length + ' transactions: ' + str, '') // @@@@@ yucky -- need 2 col table

if (types > 1) {

complain('Overall net: ' + grandTotal, 'text-treatment: bold;')

}

}

const tableDiv = UI.table(myDocument, {

query,

onDone: calculations

})

thisDiv.appendChild(tableDiv)

}

// Render the set of trips which have transactions in this class

if (UI.ns.qu('Transaction') in kb.findSuperClassesNT(subject)) {

const ts = kb.each(undefined, ns.rdf('type'), subject)

const triples = []

const index = []

for (let i = 0; i < ts.length; i++) {

const trans = ts[i]

const trip = kb.any(trans, TRIP('trip'))

if (!trip) {

triples.push(trans)

} else {

if (!(trans in index)) index[trip] = { total: 0, transactions: [] }

const usd = kb.any(trans, UI.ns.qu('in_USD'))

if (usd) index[trip].total += usd

const date = kb.any(trans, UI.ns.qu('date'))

index[trip.toNT()].transactions.push([date, trans])

}

}

/* var byDate = function(a,b) {

return new Date(kb.any(a, CAL('dtstart'))) -

new Date(kb.any(b, CAL('dtstart')));

}

*/

const list = []

for (const h1 in index) {

const t1 = kb.fromNT(h1)

list.push([kb.any(t1, CAL('dtstart')), t1])

}

list.sort()

for (let j = 0; j < list.length; j++) {

const t2 = list[j][1]

renderTrip(t2, div)

}

// Render a single trip

} else if (t['http://www.w3.org/ns/pim/trip#Trip']) {

renderTrip(subject, div)

}

// if (!me) complain("You do not have your Web Id set. Set your Web ID to make changes.");

return div

}

}

// ends