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<!--
Copyright © 2023 Lee Yingtong Li (RunasSudo)
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU Affero General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU Affero General Public License for more details.
You should have received a copy of the GNU Affero General Public License
along with this program. If not, see < https: / / www . gnu . org / licenses / > .
-->
<!DOCTYPE html>
< html >
< head >
< meta charset = "utf-8" >
< meta name = "viewport" content = "width=device-width, initial-scale=1" >
< title > PBS medicine search< / title >
< link rel = "stylesheet" href = "https://cdn.jsdelivr.net/npm/bootstrap@5.2.3/dist/css/bootstrap.min.css" integrity = "sha384-rbsA2VBKQhggwzxH7pPCaAqO46MgnOM80zW1RWuH61DGLwZJEdK2Kadq2F9CUG65" crossorigin = "anonymous" >
< link rel = "stylesheet" href = "https://cdn.jsdelivr.net/npm/bootstrap-icons@1.10.2/font/bootstrap-icons.css" integrity = "sha256-4RctOgogjPAdwGbwq+rxfwAmSpZhWaafcZR9btzUk18=" crossorigin = "anonymous" >
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< style type = "text/css" >
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#search-results ul { margin-top: 0.5em; margin-bottom: 0 }
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.popover { max-width: 400px }
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< / style >
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< / head >
< body >
< nav class = "navbar navbar-expand-sm navbar-light bg-light d-print-none" >
< div class = "container" >
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< a class = "navbar-brand" href = "#" > PBS medicine search< / a >
< div class = "collapse navbar-collapse justify-content-end" >
< ul class = "navbar-nav" >
< li class = "nav-item" >
< a class = "nav-link" href = "https://yingtongli.me/git/MedicineSearch" > Source code< / a >
< / li >
< / ul >
< / div >
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< / div >
< / nav >
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< div class = "container pt-4" id = "loading-page" >
< div class = "text-center" id = "loading-content" >
< div class = "spinner-border" role = "status" >
< span class = "visually-hidden" > Loading...< / span >
< / div >
< div class = "mt-2" >
Loading…
< / div >
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< / div >
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< div id = "app-content" style = "display:none" >
< div >
< input class = "form-control" id = "search-input" placeholder = "Search…" autocomplete = "off" >
< / div >
< div >
< table id = "search-results" class = "table mt-2" >
< thead >
< tr >
< th class = "col-1" > Item code< / th >
< th class = "col-8" > Drug< / th >
< th class = "col-1" > Quantity< / th >
< th class = "col-1" > Repeats< / th >
< th class = "col-1" > Restriction< / th >
< / tr >
< / thead >
< tbody >
< td colspan = "5" class = "text-center" > Enter a search term above to show results< / th >
< / tbody >
< / table >
< / div >
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< / div >
< footer class = "border-top pt-4 mt-4" >
< p class = "text-muted" > Results sourced from the PBS database as at January 2023. This tool is made available in the hope that it will be useful, but < b > WITHOUT ANY WARRANTY< / b > ; without even the implied warranty of < b > MERCHANTABILITY< / b > or < b > FITNESS FOR A PARTICULAR PURPOSE< / b > . Information provided in this tool is intended for reference by medical professionals. Nothing in this tool is intended to constitute medical advice.< / p >
< / footer >
< / div >
<!-- <script src="https://cdn.jsdelivr.net/npm/jquery@3.6.3/dist/jquery.min.js" integrity="sha256 - pvPw+upLPUjgMXY0G+8O0xUf+/Im1MZjXxxgOcBQBXU=" crossorigin="anonymous"></script> -->
< script src = "https://cdn.jsdelivr.net/npm/bootstrap@5.2.3/dist/js/bootstrap.bundle.min.js" integrity = "sha384-kenU1KFdBIe4zVF0s0G1M5b4hcpxyD9F7jL+jjXkk+Q2h455rYXK/7HAuoJl+0I4" crossorigin = "anonymous" > < / script >
< script src = "autocomplete.js" > < / script >
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< script src = "https://cdn.jsdelivr.net/npm/sql.js@1.8.0/dist/sql-wasm.min.js" > < / script >
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< script >
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var db; // Keep in global namespace for debugging
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async function main() {
// Load SQLite database
const sqlPromise = initSqlJs({
locateFile: file => ('https://cdn.jsdelivr.net/npm/sql.js@1.8.0/dist/' + file)
});
const dataPromise = fetch('database.db').then(res => res.arrayBuffer());
const [SQL, buf] = await Promise.all([sqlPromise, dataPromise])
db = new SQL.Database(new Uint8Array(buf));
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// Initialise search bar
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const mp_preferred_terms = execAsScalars(db.prepare('SELECT preferred_term FROM pbs_mp ORDER BY LOWER(preferred_term)'));
let data = mp_preferred_terms.map(mp_preferred_term => ({'label': mp_preferred_term, 'preview': mp_preferred_term, 'value': mp_preferred_term}));
const tpp_brand_names = execAsObjects(db.prepare('SELECT * FROM pbs_mp_brand_name LEFT JOIN pbs_mp ON pbs_mp_brand_name.mp_code = pbs_mp.code ORDER BY LOWER(brand_name)'));
data = data.concat(tpp_brand_names.map(tpp_brand_name => ({'label': tpp_brand_name['brand_name'], 'preview': tpp_brand_name['brand_name'] + ' < span class = "text-muted" > (' + tpp_brand_name['preferred_term'] + ')< / span > ', 'value': tpp_brand_name['preferred_term']})));
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const autocomplete = new Autocomplete(document.getElementById('search-input'), {
data: data,
maximumItems: 20,
threshold: 2,
onSelectItem: onClickSearchItem
});
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// Hide loading spinner
document.getElementById('loading-content').style.display = 'none';
document.getElementById('app-content').style.display = 'block';
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}
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function onClickSearchItem(item) {
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// Override label if clicked on a trade name
document.getElementById('search-input').value = item.value;
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// Find matching PBS items
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let stmt = db.prepare('SELECT * FROM pbs_item LEFT JOIN (SELECT code AS mpp_code, preferred_term AS mpp_preferred_term, mp_code FROM pbs_mpp) AS pbs_mpp ON pbs_item.mpp_code = pbs_mpp.mpp_code LEFT JOIN (SELECT code AS mp_code, preferred_term AS mp_preferred_term FROM pbs_mp) AS pbs_mp ON pbs_mpp.mp_code = pbs_mp.mp_code WHERE LOWER(mp_preferred_term) = ?');
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stmt.bind([item.value.toLowerCase()]);
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const items = execAsObjects(stmt);
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items.sort(comparePBSItems);
// Update table
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const tbody = document.querySelector('#search-results tbody');
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tbody.innerHTML = '';
for (let item of items) {
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// Get restrictions
stmt = db.prepare('SELECT *, (SELECT COUNT(*) FROM pbs_restriction_criteria WHERE pbs_restriction_criteria.restriction_code = pbs_restriction.code) AS num_criteria FROM pbs_restriction LEFT JOIN pbs_item_restriction ON pbs_restriction.code = pbs_item_restriction.restriction_code WHERE pbs_item_restriction.item_code = ?');
stmt.bind([item['code']]);
const restrictions = execAsObjects(stmt);
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const tr = document.createElement('tr');
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let td = document.createElement('td'); td.innerHTML = '< a href = "https://www.pbs.gov.au/medicine/item/' + item['code'] + '" target = "_blank" > ' + item['code'] + '< / a > '; tr.appendChild(td);
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td = document.createElement('td');
let div = document.createElement('div'); div.innerText = item['mpp_preferred_term']; td.appendChild(div);
if (restrictions.length > 0) {
let ulRestrictions = document.createElement('ul');
for (let restriction of restrictions) {
let li = document.createElement('li');
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ulRestrictions.appendChild(li);
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li.innerHTML = restriction['indication'];
if (item['benefit_type'] === 'streamlined') {
li.innerHTML += ' (' + restriction['treatment_of'] + ')';
}
if (restriction['num_criteria'] > 0) {
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li.innerHTML += ' ';
let span = document.createElement('span');
span.classList.add('text-muted');
span.innerText = '(' + restriction['num_criteria'] + ' criteria)';
li.appendChild(span);
// Create popover for criteria
new bootstrap.Popover(span, {
trigger: 'hover focus',
title: restriction['indication'],
content: restriction['criteria_rendered'],
html: true
});
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}
}
td.appendChild(ulRestrictions);
}
tr.appendChild(td);
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td = document.createElement('td'); td.innerText = item['maximum_prescribable_units']; tr.appendChild(td);
td = document.createElement('td'); td.innerText = item['number_repeats']; tr.appendChild(td);
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if (item['program'] === 'R1') {
td = document.createElement('td'); td.innerHTML = '< a href = "https://www.pbs.gov.au/medicine/item/' + item['code'] + '" target = "_blank" > RPBS< / a > '; tr.appendChild(td);
tr.classList.add('table-secondary');
} else if (item['benefit_type'] === 'unrestricted') {
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td = document.createElement('td'); tr.appendChild(td);
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} else if (item['benefit_type'] === 'restricted') {
td = document.createElement('td'); td.innerHTML = '< a href = "https://www.pbs.gov.au/medicine/item/' + item['code'] + '" target = "_blank" > Restricted< / a > '; tr.appendChild(td);
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tr.classList.add('table-warning');
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} else if (item['benefit_type'] === 'streamlined') {
td = document.createElement('td'); td.innerHTML = '< a href = "https://www.pbs.gov.au/medicine/item/' + item['code'] + '" target = "_blank" > Streamlined< / a > '; tr.appendChild(td);
tr.classList.add('table-warning');
} else if (item['benefit_type'] === 'authority') {
td = document.createElement('td'); td.innerHTML = '< a href = "https://www.pbs.gov.au/medicine/item/' + item['code'] + '" target = "_blank" > Authority< / a > '; tr.appendChild(td);
tr.classList.add('table-danger');
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} else {
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alert('Unknown benefit type: ' + item['benefit_type']);
throw 'Unknown benefit type: ' + item['benefit_type'];
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}
tbody.appendChild(tr);
}
}
const regexIsNumber = /^[0-9]+$/.compile();
function comparePBSItems(item1, item2) {
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// Sort RPBS, etc. benefits after other items
if (item1['program'] === 'GE' & & item2['program'] !== 'GE') {
return -1;
}
if (item2['program'] === 'GE' & & item1['program'] !== 'GE') {
return 1;
}
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// Sort tablets/capsules before other forms
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if ((item1['mpp_preferred_term'].indexOf(' tablet, ') >= 0 || item1['mpp_preferred_term'].indexOf(' capsule, ') >= 0) & & !(item2['mpp_preferred_term'].indexOf(' tablet, ') >= 0 || item2['mpp_preferred_term'].indexOf(' capsule, ') >= 0)) {
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return -1;
}
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if ((item2['mpp_preferred_term'].indexOf(' tablet, ') >= 0 || item2['mpp_preferred_term'].indexOf(' capsule, ') >= 0) & & !(item1['mpp_preferred_term'].indexOf(' tablet, ') >= 0 || item1['mpp_preferred_term'].indexOf(' capsule, ') >= 0)) {
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return 1;
}
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// Compare mpp_preferred_term word-by-word accounting for numbers and units
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const bits1 = item1['mpp_preferred_term'].split(' ');
const bits2 = item2['mpp_preferred_term'].split(' ');
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for (let i = 0; i < bits1.length & & i < bits2 . length ; i + + ) {
if (regexIsNumber.test(bits1[i]) & & regexIsNumber.test(bits2[i])) {
// Numeric compare
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let num1 = parseInt(bits1[i]);
let num2 = parseInt(bits2[i]);
// Check for units - convert to grams
if (bits1.length > i + 1 & & bits1[i + 1] == 'microgram') {
num1 /= 1000000;
}
if (bits1.length > i + 1 & & bits1[i + 1] == 'mg') {
num1 /= 1000;
}
if (bits2.length > i + 1 & & bits2[i + 1] == 'microgram') {
num2 /= 1000000;
}
if (bits2.length > i + 1 & & bits2[i + 1] == 'mg') {
num2 /= 1000;
}
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if (num1 < num2 ) {
return -1;
}
if (num1 > num2) {
return 1;
}
} else {
// String compare
if (bits1[i] < bits2 [ i ] ) {
return -1;
}
if (bits1[i] > bits2[i]) {
return 1;
}
}
}
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// Sort unrestricted, then restricted/streamlined, then authority required
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const type1 = item1['benefit_type'] === 'unrestricted' ? 0 : item1['benefit_type'] === 'restricted' ? 1 : item1['benefit_type'] === 'streamlined' ? 1 : 2;
const type2 = item2['benefit_type'] === 'unrestricted' ? 0 : item2['benefit_type'] === 'restricted' ? 1 : item2['benefit_type'] === 'streamlined' ? 1 : 2;
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return type1 - type2;
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}
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function execAsScalars(stmt) {
let results = [];
while (stmt.step()) {
results.push(stmt.get()[0]);
}
stmt.free();
return results;
}
function execAsObjects(stmt) {
let results = [];
while (stmt.step()) {
results.push(stmt.getAsObject());
}
stmt.free();
return results;
}
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function groupBy(array, grouper) {
// Array.prototype.group not yet supported in most (any) browsers
return array.reduce(function(result, item) {
(result[grouper(item)] = result[grouper(item)] || []).push(item);
return result;
}, {});
};
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main();
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< / script >
< / body >
< / html >
