//Setup

export default async function({login, data, imports, q, account}, {enabled = false} = {}) {

//Plugin execution

try {

//Check if plugin is enabled and requirements are met

if ((!enabled) || (!q.topics))

return null

//Load inputs

let {sort, mode, limit} = imports.metadata.plugins.topics.inputs({data, account, q})

const type = {starred: "labels", labels: "labels", mastered: "icons", icons: "icons"}[mode]

const shuffle = (sort === "random")

//Start puppeteer and navigate to topics

console.debug(`metrics/compute/${login}/plugins > topics > searching starred topics`)

let topics = []

console.debug(`metrics/compute/${login}/plugins > topics > starting browser`)

const browser = await imports.puppeteer.launch()

console.debug(`metrics/compute/${login}/plugins > topics > started ${await browser.version()}`)

const page = await browser.newPage()

//Iterate through pages

for (let i = 1; i <= 100; i++) {

//Load page

console.debug(`metrics/compute/${login}/plugins > topics > loading page ${i}`)

await page.goto(`https://github.com/stars/${login}/topics?direction=desc&page=${i}&sort=${sort}`)

const frame = page.mainFrame()

//Extract topics

await Promise.race([frame.waitForSelector("ul.repo-list"), frame.waitForSelector(".blankslate")])

const starred = await frame.evaluate(() =>

[...document.querySelectorAll("ul.repo-list li")].map(li => ({

name: li.querySelector(".f3").innerText,

description: li.querySelector(".f5").innerText,

icon: li.querySelector("img")?.src ?? null,

}))

)

console.debug(`metrics/compute/${login}/plugins > topics > extracted ${starred.length} starred topics`)

//Check if next page exists

if (!starred.length) {

console.debug(`metrics/compute/${login}/plugins > topics > no more page to load`)

break

}

topics.push(...starred)

}

//Close browser

console.debug(`metrics/compute/${login}/plugins > topics > closing browser`)

await browser.close()

//Shuffle topics

if (shuffle) {

console.debug(`metrics/compute/${login}/plugins > topics > shuffling topics`)

topics = imports.shuffle(topics)

}

//Limit topics (labels)

if ((type === "labels") && (limit > 0)) {

console.debug(`metrics/compute/${login}/plugins > topics > keeping only ${limit} topics`)

const removed = topics.splice(limit)

if (removed.length)

topics.push({name: `And ${removed.length} more...`, description: removed.map(({name}) => name).join(", "), icon: null})

}

//Convert icons to base64

console.debug(`metrics/compute/${login}/plugins > topics > loading artworks`)

for (const topic of topics) {

if (topic.icon) {

console.debug(`metrics/compute/${login}/plugins > topics > processing ${topic.name}`)

const {icon} = topic

topic.icon = await imports.imgb64(icon)

topic.icon24 = await imports.imgb64(icon, {force: true, width: 24, height: 24})

}

//Escape HTML description

topic.description = imports.htmlescape(topic.description)

}

//Filter topics with icon (icons)

if (type === "icons") {

console.debug(`metrics/compute/${login}/plugins > topics > filtering topics with icon`)

topics = topics.filter(({icon}) => icon)

}

//Limit topics (icons)

if ((type === "icons") && (limit > 0)) {

console.debug(`metrics/compute/${login}/plugins > topics > keeping only ${limit} topics`)

topics.splice(limit)

}

//Results

return {mode, type, list: topics}

}

//Handle errors

catch (error) {

if (error.error?.message)

throw error

throw {error: {message: "An error occured", instance: error}}

}

}