/**

* Tools for doing things with a message

* Let us be creative here. Allow all sorts of things to

* be done to a message - linking to new or old objects in an open way

*

* Ideas: Bookmark, Like, star, pin at top of chat, reply as new thread,

* If you made it originally: edit, delete, attach

* @packageDocumentation

*/

import * as debug from '../debug'

import { icons } from '../iconBase'

// import { media } from '../media/index'

import * as ns from '../ns'

// import * as pad from '../pad'

import * as rdf from 'rdflib' // pull in first avoid cross-refs

// import * as style from '../style'

import * as utils from '../utils'

import * as widgets from '../widgets'

import { renderBookmarksButton } from './bookmarks'

import { authn, store } from 'solid-logic'

import { mostRecentVersion } from './chatLogic'

import { switchToEditor } from './message'

const dom = window.document

// THE UNUSED ICONS are here as reminders for possible future functionality

// const BOOKMARK_ICON = 'noun_45961.svg'

// const HEART_ICON = 'noun_130259.svg' -> Add this to my (private) favorites

// const MENU_ICON = 'noun_897914.svg'

// const PAPERCLIP_ICON = 'noun_25830.svg' -> add attachments to this message

// const PIN_ICON = 'noun_562340.svg' -> pin this message permanently in the chat UI

const PENCIL_ICON = 'noun_253504.svg' // edit a message

// const SPANNER_ICON = 'noun_344563.svg' -> settings

const THUMBS_UP_ICON = 'noun_1384132.svg'

const THUMBS_DOWN_ICON = 'noun_1384135.svg'

/**

* Emoji in Unicode

*/

const emoji = {}

emoji[ns.schema('AgreeAction')] = '👍'

emoji[ns.schema('DisagreeAction')] = '👎'

emoji[ns.schema('EndorseAction')] = '⭐️'

emoji[ns.schema('LikeAction')] = '❤️'

/**

* Create strip of sentiments expressed

*/

export function sentimentStrip (target, doc) { // alain seems not used

const latest = mostRecentVersion(target)

const actions = store.holds(latest, ns.schema('dateDeleted').value, null, latest.doc()) ? store.each(null, ns.schema('target'), target, doc) : []

const sentiments = actions.map(a => store.any(a, ns.rdf('type'), null, doc))

sentiments.sort()

const strings = sentiments.map(x => emoji[x] || '')

return dom.createTextNode(strings.join(' '))

}

/**

* Create strip of sentiments expressed, with hyperlinks

*

* @param target {NamedNode} - The thing about which they are expressed

* @param doc {NamedNode} - The document in which they are expressed

*/

export function sentimentStripLinked (target, doc) {

const strip = dom.createElement('span')

function refresh () {

strip.innerHTML = ''

const actions = (mostRecentVersion(target).uri !== ns.schema('dateDeleted').uri) ? store.each(null, ns.schema('target'), target, doc) : []

const sentiments = actions.map(a => [

store.any(a, ns.rdf('type'), null, doc),

store.any(a, ns.schema('agent'), null, doc)

])

sentiments.sort()

sentiments.forEach(ss => {

const [theClass, agent] = ss

let res

if (agent) {

res = dom.createElement('a')

res.setAttribute('href', agent.uri)

} else {

res = dom.createTextNode('')

}

res.textContent = emoji[theClass] || '*'

strip.appendChild(res)

})

}

refresh()

strip.refresh = refresh

return strip

}

/**

* Creates a message toolbar component

*/

export function messageToolbar (message, messageRow, userContext, channelObject) {

async function deleteMessage () {

const author = store.any(message, ns.foaf('maker'))

if (!me) {

alert('You can\'t delete the message, you are not logged in.')

} else if (me.sameTerm(author)) {

try {

await channelObject.deleteMessage(message)

} catch (err) {

const msg = 'Error deleting messaage ' + err

debug.warn(msg)

alert(msg)

const area = userContext.statusArea || messageRow.parentNode

area.appendChild(widgets.errorMessageBlock(dom, msg))

}

messageRow.parentNode.removeChild(messageRow)

} else {

alert('You can\'t delete the message, you are not logged in as the author, ' + author)

}

closeToolbar()

}

async function editMessage (messageRow) {

if (me.value === store.any(message, ns.foaf('maker')).value) {

closeToolbar() // edit is a one-off action

switchToEditor(messageRow, message, channelObject, userContext)

}

}

// alain TODO allow chat owner to fully delete message + sentiments and replacing messages

const div = dom.createElement('div')

// is message deleted ?

if (mostRecentVersion(message).value === ns.schema('dateDeleted').value) return div

function closeToolbar () {

div.parentElement.parentElement.removeChild(div.parentElement) // remive the TR

}

async function deleteThingThen (x) {

await store.updater.update(store.connectedStatements(x), [])

}

// Things only the original author can do

let me = authn.currentUser() // If already logged on

if (me && store.holds(message, ns.foaf('maker'), me)) {

// button to delete the message

div.appendChild(widgets.deleteButtonWithCheck(dom, div, 'message', deleteMessage))

// button to edit the message

div.appendChild(widgets.button(dom, icons.iconBase + PENCIL_ICON, 'edit', () => editMessage(messageRow)))

} // if mine

// Things anyone can do if they have a bookmark list async

/*

var bookmarkButton = await bookmarks.renderBookmarksButton(userContext)

if (bookmarkButton) {

div.appendChild(bookmarkButton)

}

*/

// Things anyone can do if they have a bookmark list

renderBookmarksButton(userContext).then(bookmarkButton => {

if (bookmarkButton) div.appendChild(bookmarkButton)

})

/** Button to allow user to express a sentiment (like, endorse, etc) about a target

*

* @param context {Object} - Provide dom and me

* @param target {NamedNode} - The thing the user expresses an opnion about

* @param icon {uristring} - The icon to be used for the button

* @param actionClass {NamedNode} - The RDF class - typically a subclass of schema:Action

* @param doc - {NamedNode} - the Solid document iunto which the data should be written

* @param mutuallyExclusive {Array<NamedNode>} - Any RDF classes of sentimentswhich are mutiually exclusive

*/

function sentimentButton (

context,

target,

icon,

actionClass,

doc,

mutuallyExclusive

) {

function setColor () {

button.style.backgroundColor = action ? 'yellow' : 'white'

}

const button = widgets.button(

dom,

icon,

utils.label(actionClass),

async function (_event) {

if (action) {

await deleteThingThen(action)

action = null

setColor()

} else {

// no action

action = widgets.newThing(doc)

const insertMe = [

rdf.st(action, ns.schema('agent'), context.me, doc),

rdf.st(action, ns.rdf('type'), actionClass, doc),

rdf.st(action, ns.schema('target'), target, doc)

]

await store.updater.update([], insertMe)

setColor()

if (mutuallyExclusive) {

// Delete incompative sentiments

let dirty = false

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

const a = existingAction(mutuallyExclusive[i])

if (a) {

await deleteThingThen(a) // but how refresh? refreshTree the parent?

dirty = true

}

}

if (dirty) {

// widgets.refreshTree(button.parentNode) // requires them all to be immediate siblings

widgets.refreshTree(messageRow) // requires them all to be immediate siblings

}

}

}

}

)

function existingAction (actionClass) {

const actions = store

.each(null, ns.schema('agent'), context.me, doc)

.filter(x => store.holds(x, ns.rdf('type'), actionClass, doc))

.filter(x => store.holds(x, ns.schema('target'), target, doc))

return actions.length ? actions[0] : null

}

function refresh () {

action = existingAction(actionClass)

setColor()

}

let action

button.refresh = refresh // If the file changes, refresh live

refresh()

return button

}

// THUMBS_UP_ICON

// https://schema.org/AgreeAction

me = authn.currentUser() // If already logged on

// debug.log('Actions 3' + mostRecentVersion(message).value + ' ' + ns.schema('dateDeleted').value + ' ' + (mostRecentVersion(message).value !== ns.schema('dateDeleted').value))

if (me && (mostRecentVersion(message).value !== ns.schema('dateDeleted').value)) {

const context1 = { me, dom, div }

div.appendChild(

sentimentButton(

context1,

message, // @@ TODO use widgets.sentimentButton

icons.iconBase + THUMBS_UP_ICON,

ns.schema('AgreeAction'),

message.doc(),

[ns.schema('DisagreeAction')]

)

)

// Thumbs down

div.appendChild(

sentimentButton(

context1,

message,

icons.iconBase + THUMBS_DOWN_ICON,

ns.schema('DisagreeAction'),

message.doc(),

[ns.schema('AgreeAction')]

)

)

}

// X button to remove the tool UI itself

const cancelButton = div.appendChild(widgets.cancelButton(dom))

cancelButton.style.float = 'right'

cancelButton.firstChild.style.opacity = '0.3'

cancelButton.addEventListener('click', closeToolbar)

return div

}