54 lines
1.7 KiB
JavaScript
54 lines
1.7 KiB
JavaScript
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// @ts-check
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const DiscordTypes = require("discord-api-types/v10")
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const Ty = require("../../types")
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const assert = require("assert").strict
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const passthrough = require("../../passthrough")
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const {sync, db, select} = passthrough
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/** @type {import("../../matrix/file")} */
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const file = sync.require("../../matrix/file")
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/** @type {import("../../matrix/mreq")} */
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const mreq = sync.require("../../matrix/mreq")
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/** @type {import("../converters/lottie")} */
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const convertLottie = sync.require("../converters/lottie")
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const INFO = {
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mimetype: "image/png",
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w: convertLottie.SIZE,
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h: convertLottie.SIZE
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}
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/**
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* @param {DiscordTypes.APIStickerItem} stickerItem
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* @returns {Promise<{mxc_url: string, info: typeof INFO}>}
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*/
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async function convert(stickerItem) {
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// Reuse sticker if already converted and uploaded
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const existingMxc = select("lottie", "mxc_url", {sticker_id: stickerItem.id}).pluck().get()
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if (existingMxc) return {mxc_url: existingMxc, info: INFO}
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// Fetch sticker data from Discord
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const res = await fetch(file.DISCORD_IMAGES_BASE + file.sticker(stickerItem))
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if (res.status !== 200) throw new Error("Sticker data file not found.")
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const text = await res.text()
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// Convert to PNG (readable stream)
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const readablePng = await convertLottie.convert(text)
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// Upload to MXC
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/** @type {Ty.R.FileUploaded} */
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const root = await mreq.mreq("POST", "/media/v3/upload", readablePng, {
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headers: {
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"Content-Type": INFO.mimetype
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}
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})
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assert(root.content_uri)
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// Save the link for next time
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db.prepare("INSERT INTO lottie (sticker_id, mxc_url) VALUES (?, ?)").run(stickerItem.id, root.content_uri)
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return {mxc_url: root.content_uri, info: INFO}
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}
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module.exports.convert = convert
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