const nest = require('depnest') const { h, Struct, Value } = require('mutant') const pull = require('pull-stream') const Scroller = require('pull-scroll') const TextNodeSearcher = require('text-node-searcher') exports.gives = nest('app.page.search') exports.needs = nest({ 'app.html.filter': 'first', 'app.html.scroller': 'first', 'message.html.render': 'first', 'sbot.pull.log': 'first', 'sbot.pull.stream': 'first' }) var whitespace = /\s+/ // TODO : if query is a cypherlink, display backlinks to that cypherlink exports.create = function (api) { return nest('app.page.search', searchPage) function searchPage (location) { const query = location.query.trim() const search = Struct({ fulltext: Struct({ isDone: Value(false) }), matches: Value(0) }) const searchHeader = h('Search', [ h('header', h('h1', query)) ]) const { filterMenu, filterDownThrough, resetFeed } = api.app.html.filter(draw) const { container, content } = api.app.html.scroller({ prepend: [searchHeader, filterMenu] }) function renderMsg (msg) { var el = api.message.html.render(msg, { showTitle: true }) var queryTerms = query.split(whitespace) highlight(el, createOrRegExp(queryTerms)) return el } function draw () { resetFeed({ container, content }) // TODO figure out how to step on kinda orderless search results pull( // api.sbot.pull.stream(sbot => next(sbot.search.query, { query, limit: 500 })), api.sbot.pull.stream(sbot => sbot.search.query({ query, limit: 500 })), filterDownThrough(), pull.through(() => search.matches.set(search.matches() + 1)), Scroller(container, content, renderMsg, false, false) ) } draw() container.title = '?' + query return container } } function createOrRegExp (ary) { return new RegExp(ary.map(function (e) { return '\\b' + e + '\\b' }).join('|'), 'i') } function highlight (el, query) { var searcher = new TextNodeSearcher({ container: el }) searcher.query = query searcher.highlight() return el }