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GNU AFFERO GENERAL PUBLIC LICENSE
Version 3, 19 November 2007
Copyright (C) 2007 Free Software Foundation, Inc. <https://fsf.org/>
Everyone is permitted to copy and distribute verbatim copies
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// @ts-check
const fs = require("fs")
const {join} = require("path")
async function migrate(db) {
let files = fs.readdirSync(join(__dirname, "migrations"))
files = files.sort()
db.prepare("CREATE TABLE IF NOT EXISTS _migration (filename TEXT NOT NULL, PRIMARY KEY (filename)) WITHOUT ROWID").run()
/** @type {string} */
let progress = db.prepare("SELECT * FROM _migration").pluck().get()
if (!progress) {
progress = ""
db.prepare("INSERT INTO _migration VALUES ('')").run()
}
let migrationRan = false
for (const filename of files) {
if (progress >= filename) continue
console.log(`Applying database migration ${filename}`)
if (filename.endsWith(".sql")) {
const sql = fs.readFileSync(join(__dirname, "migrations", filename), "utf8")
db.exec(sql)
} else if (filename.endsWith(".js")) {
await require("./" + join("migrations", filename))(db)
} else {
continue
}
migrationRan = true
db.transaction(() => {
db.prepare("DELETE FROM _migration").run()
db.prepare("INSERT INTO _migration VALUES (?)").run(filename)
})()
}
if (migrationRan) {
console.log("Database migrations all done.")
}
db.pragma("foreign_keys = on")
}
module.exports.migrate = migrate

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BEGIN TRANSACTION;
CREATE TABLE item (
item_id INTEGER NOT NULL,
item_type TEXT NOT NULL,
band_id INTEGER NOT NULL,
added INTEGER NOT NULL,
updated INTEGER NOT NULL,
purchased INTEGER NOT NULL,
featured_track INTEGER,
why TEXT,
also_collected_count INTEGER NOT NULL,
item_title TEXT NOT NULL,
item_url TEXT NOT NULL,
item_art_url TEXT NOT NULL,
band_name TEXT NOT NULL,
band_url TEXT NOT NULL,
featured_track_title TEXT,
featured_track_number INTEGER,
featured_track_duration NUMERIC,
album_id INTEGER,
album_title TEXT,
price INTEGER NOT NULL,
currency STRING NOT NULL,
label TEXT,
label_id INTEGER,
PRIMARY KEY (item_id)
) WITHOUT ROWID;
CREATE TABLE track (
item_id INTEGER NOT NULL,
track_id INTEGER NOT NULL,
title TEXT NOT NULL,
artist TEXT NOT NULL,
track_number INTEGER,
duration NUMERIC NOT NULL,
mp3 TEXT,
PRIMARY KEY (item_id, track_id),
FOREIGN KEY (item_id) REFERENCES item (item_id) ON DELETE CASCADE
) WITHOUT ROWID;
CREATE TABLE item_tag (
item_id INTEGER NOT NULL,
tag TEXT NOT NULL,
PRIMARY KEY (item_id, tag),
FOREIGN KEY (item_id) REFERENCES item (item_id) ON DELETE CASCADE
) WITHOUT ROWID;
COMMIT;

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export type Models = {
item: {
item_id: number
item_type: string
band_id: number
added: number
updated: number
purchased: string
featured_track: number | null
why: string | null
also_collected_count: number
item_title: string
item_url: string
item_art_url: string
band_name: string
band_url: string
featured_track_title: string | null
featured_track_number: number | null
featured_track_duration: number | null
album_id: number | null
album_title: string | null
price: number
currency: string
label: string | null
label_id: number | null
}
track: {
item_id: number
track_id: number
title: string
artist: string
track_number: number | null
duration: number
mp3: string | null
}
item_tag: {
item_id: number
tag: string
}
}
export type Prepared<Row> = {
pluck: () => Prepared<Row[keyof Row]>
safeIntegers: () => Prepared<{[K in keyof Row]: Row[K] extends number ? BigInt : Row[K]}>
raw: () => Prepared<Row[keyof Row][]>
all: (..._: any[]) => Row[]
get: (..._: any[]) => Row | null | undefined
}
export type AllKeys<U> = U extends any ? keyof U : never
export type PickTypeOf<T, K extends AllKeys<T>> = T extends { [k in K]?: any } ? T[K] : never
export type Merge<U> = {[x in AllKeys<U>]: PickTypeOf<U, x>}
export type Nullable<T> = {[k in keyof T]: T[k] | null}
export type Numberish<T> = {[k in keyof T]: T[k] extends number ? (number | bigint) : T[k]}
export type ValueOrArray<T> = {[k in keyof T]: T[k][] | T[k]}

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module.exports = {}

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// @ts-check
const {db} = require("../passthrough")
const U = require("./orm-defs")
/**
* @template {keyof U.Models} Table
* @template {keyof U.Models[Table]} Col
* @param {Table} table
* @param {Col[] | Col} cols
* @param {Partial<U.ValueOrArray<U.Numberish<U.Models[Table]>>>} where
* @param {string} [e]
*/
function select(table, cols, where = {}, e = "") {
if (!Array.isArray(cols)) cols = [cols]
const parameters = []
const wheres = Object.entries(where).map(([col, value]) => {
if (Array.isArray(value)) {
parameters.push(...value)
return `"${col}" IN (` + Array(value.length).fill("?").join(", ") + ")"
} else {
parameters.push(value)
return `"${col}" = ?`
}
})
const whereString = wheres.length ? " WHERE " + wheres.join(" AND ") : ""
/** @type {U.Prepared<Pick<U.Models[Table], Col>>} */
const prepared = db.prepare(`SELECT ${cols.map(k => `"${String(k)}"`).join(", ")} FROM ${table} ${whereString} ${e}`)
prepared.get = prepared.get.bind(prepared, ...parameters)
prepared.all = prepared.all.bind(prepared, ...parameters)
return prepared
}
/**
* @template {keyof U.Models} Table
* @template {keyof U.Merge<U.Models[Table]>} Col
*/
class From {
/**
* @param {Table} table
*/
constructor(table) {
/** @private @type {Table[]} */
this.tables = [table]
/** @private */
this.directions = []
/** @private */
this.sql = ""
/** @private */
this.cols = []
/** @private */
this.makeColsSafe = true
/** @private */
this.using = []
/** @private */
this.isPluck = false
/** @private */
this.parameters = []
}
/**
* @template {keyof U.Models} Table2
* @param {Table2} table
* @param {Col & (keyof U.Models[Table2])} col
* @param {"inner" | "left"} [direction]
*/
join(table, col, direction = "inner") {
/** @type {From<Table | Table2, keyof U.Merge<U.Models[Table | Table2]>>} */
// @ts-ignore
const r = this
r.tables.push(table)
r.directions.push(direction.toUpperCase())
r.using.push(col)
return r
}
/**
* @template {Col} Select
* @param {Col[] | Select[]} cols
*/
select(...cols) {
/** @type {From<Table, Select>} */
const r = this
r.cols = cols
return r
}
selectUnsafe(...cols) {
this.cols = cols
this.makeColsSafe = false
return this
}
/**
* @template {Col} Select
* @param {Select} col
*/
pluck(col) {
/** @type {Pluck<Table, Select>} */
// @ts-ignore
const r = this
r.cols = [col]
r.isPluck = true
return r
}
/**
* @param {string} sql
*/
and(sql) {
this.sql += " " + sql
return this
}
/**
* @param {Partial<U.Numberish<U.Models[Table]>>} conditions
*/
where(conditions) {
const wheres = Object.entries(conditions).map(([col, value]) => {
this.parameters.push(value)
return `"${col}" = ?`
})
this.sql += " WHERE " + wheres.join(" AND ")
return this
}
prepare() {
if (this.makeColsSafe) this.cols = this.cols.map(k => `"${k}"`)
let sql = `SELECT ${this.cols.join(", ")} FROM ${this.tables[0]} `
for (let i = 1; i < this.tables.length; i++) {
const table = this.tables[i]
const col = this.using[i-1]
const direction = this.directions[i-1]
sql += `${direction} JOIN ${table} USING (${col}) `
}
sql += this.sql
/** @type {U.Prepared<Pick<U.Merge<U.Models[Table]>, Col>>} */
let prepared = db.prepare(sql)
if (this.isPluck) prepared = prepared.pluck()
return prepared
}
get(..._) {
const prepared = this.prepare()
return prepared.get(...this.parameters, ..._)
}
all(..._) {
const prepared = this.prepare()
return prepared.all(...this.parameters, ..._)
}
}
/* c8 ignore start - this code is only used for types and does not actually execute */
/**
* @template {keyof U.Models} Table
* @template {keyof U.Merge<U.Models[Table]>} Col
*/
class Pluck extends From {
// @ts-ignore
prepare() {
/** @type {U.Prepared<U.Merge<U.Models[Table]>[Col]>} */
// @ts-ignore
const prepared = super.prepare()
return prepared
}
get(..._) {
const prepared = this.prepare()
return prepared.get(..._)
}
all(..._) {
const prepared = this.prepare()
return prepared.all(..._)
}
}
/* c8 ignore stop */
/**
* @template {keyof U.Models} Table
* @param {Table} table
*/
function from(table) {
return new From(table)
}
module.exports.from = from
module.exports.select = select

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// @ts-check
const iconoir = require("@iconify-json/iconoir")
const utils = require("@iconify/utils")
/**
* @param {string} name
* @param {number} [height]
*/
function get(name, height = 20) {
const {body, attributes} = utils.iconToSVG(iconoir.icons.icons[name], {height})
attributes.viewBox = "0 0 24 24"
return utils.iconToHTML(body, attributes)
}
module.exports.get = get

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{
"name": "bc-explorer",
"version": "1.0.0",
"description": "",
"main": "index.js",
"scripts": {
"test": "echo \"Error: no test specified\" && exit 1"
},
"keywords": [],
"author": "",
"license": "ISC",
"dependencies": {
"@cloudrac3r/pug": "^4.0.4",
"@iconify-json/iconoir": "^1.2.7",
"@iconify/utils": "^2.3.0",
"@stackoverflow/stacks": "^2.7.3",
"@types/node": "^20.17.27",
"better-sqlite3": "^11.9.1",
"domino": "^2.1.6",
"h3": "^1.15.1",
"heatsync": "^2.8.1",
"htmx.org": "^2.0.4",
"zod": "^3.24.2"
}
}

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// @ts-check
/**
* @typedef {Object} Passthrough
* @property {import("repl").REPLServer} repl
* @property {import("heatsync")} sync
* @property {import("better-sqlite3/lib/database")} db
* @property {import("./db/orm").from} from
* @property {import("./db/orm").select} select
* @property {import("h3").Router} router
*/
/** @type {Passthrough} */
// @ts-ignore
const pt = {}
module.exports = pt

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// @ts-check
const assert = require("assert/strict")
const fs = require("fs")
const {join} = require("path")
const h3 = require("h3")
const {defineEventHandler, defaultContentType, setResponseStatus, getQuery, getRequestHeader, setResponseHeader} = h3
const {compileFile} = require("@cloudrac3r/pug")
const pretty = process.argv.join(" ").includes("test")
const {sync} = require("./passthrough")
// Pug
let globals = sync.remember(() => ({}))
/** @type {Map<string, (event: import("h3").H3Event, locals: Record<string, any>) => Promise<string>>} */
const pugCache = new Map()
function addGlobals(obj) {
Object.assign(globals, obj)
}
function and(event, params) {
const newParams = Object.assign(getQuery(event), params)
Object.keys(newParams).forEach(key => !newParams[key] && delete newParams[key])
return "?" + new URLSearchParams(newParams)
}
/**
* @param {import("h3").H3Event} event
* @param {string} filename
* @param {Record<string, any>} locals
*/
function render(event, filename, locals) {
const path = join(__dirname, "pug", filename)
function compile() {
try {
const template = compileFile(path, {pretty})
pugCache.set(path, async (event, locals) => {
const localAnd = params => and(event, params)
defaultContentType(event, "text/html; charset=utf-8")
return template(Object.assign({},
getQuery(event), // Query parameters can be easily accessed on the top level but don't allow them to overwrite anything
globals, // Globals
locals, // Explicit locals overwrite globals in case we need to DI something
{event, and: localAnd} // These are assigned last so they overwrite everything else. It would be catastrophically bad if they can't be trusted.
))
})
/* c8 ignore start */
} catch (e) {
pugCache.set(path, async (event) => {
setResponseStatus(event, 500, "Internal Template Error")
defaultContentType(event, "text/plain")
return e.toString()
})
}
/* c8 ignore stop */
}
if (!pugCache.has(path)) {
compile()
fs.watch(path, {persistent: false}, compile)
fs.watch(join(__dirname, "pug", "includes"), {persistent: false}, compile)
}
const cb = pugCache.get(path)
assert(cb)
return cb(event, locals)
}
/**
* @param {import("h3").Router} router
* @param {string} url
* @param {string} filename
*/
function createRoute(router, url, filename) {
router.get(url, defineEventHandler(async event => {
return render(event, filename, {})
}))
}
function compressResponse(event, response) {
if (!getRequestHeader(event, "accept-encoding")?.includes("gzip")) return
/* c8 ignore next */
if (typeof response.body !== "string") return
const stream = new Response(response.body).body
assert(stream)
setResponseHeader(event, "content-encoding", "gzip")
response.body = stream.pipeThrough(new CompressionStream("gzip"))
}
module.exports.addGlobals = addGlobals
module.exports.render = render
module.exports.createRoute = createRoute
module.exports.compressResponse = compressResponse
module.exports.and = and

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extends includes/layout.pug
block view
.mx-auto.w100.wmx11.fs-body1#content
.d-grid.gx8.gy12.jc-center(style="grid-template-columns: repeat(auto-fit, 210px)")
each item in items
div
a.album-grid-link(href=item.item_url)
img(loading="lazy" src=item.item_art_url width=210 height=210)
p.fs-body3.mb8= item.item_title
.d-flex.fw-wrap.g4
span.s-tag.s-tag__xs
span.s-tag--sponsor!= icons.get("compact-disc", 16)
= item.total_duration
a.s-tag.s-tag__xs(href=and({arrange: "track", filter_field: "item_id", filter: item.item_id}))
span.s-tag--sponsor!= icons.get("music-note", 16)
= item.track_count
a.s-tag.s-tag__xs(href=and({filter_field: "band_name", filter: item.band_name}))
span.s-tag--sponsor!= icons.get("people-tag", 16)
= item.band_name
- let label = item.band_url.replace(/https?:\/\/(.*?)\.bandcamp\.com.*/, "$1")
a.s-tag.s-tag__xs(href=and({filter_field: "band_url", filter: label}))
span.s-tag--sponsor!= icons.get("component", 16)
= label

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extends includes/layout.pug
block view
.mx-auto.w100.wmx11.fs-body1#content
.s-table-container
table.s-table.s-table__bx.duration-last-col
thead
th Album
th Artist
th Label
th Tracks
th Length
tbody
each item in items
tr
td= item.item_title
td= item.band_name
- let label = item.band_url.replace(/https?:\/\/(.*?)\.bandcamp\.com.*/, "$1")
td= label
td= item.track_count
td= item.total_duration

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extends includes/layout.pug
block view
.mx-auto.w100.wmx9.fs-body1#content
.d-flex.fd-column.g4
each item in items
.d-flex.g4
.fl-grow1.pb12
.fs-headline1= item.band_name
.d-flex.fw-wrap.g4
a.s-tag.s-tag__xs(href=and({arrange: "album", filter_field: "band_name", filter: item.band_name}))
span.s-tag--sponsor!= icons.get("album", 16)
= item.album_count
a.s-tag.s-tag__xs(href=and({arrange: "track", filter_field: "band_name", filter: item.band_name}))
span.s-tag--sponsor!= icons.get("music-note", 16)
= item.track_count
span.s-tag.s-tag__xs
span.s-tag--sponsor!= icons.get("compact-disc", 16)
= item.total_duration
- let labels = item.labels.split("|").map(x => x.replace(/https?:\/\/(.*?)\.bandcamp\.com.*/, "$1"))
each label in labels
a.s-tag.s-tag__xs(href=and({filter_field: "band_url", filter: label}))
span.s-tag--sponsor!= icons.get("component", 16)
= label
each preview in item.previews
a.d-flex(href=preview.item_url)
img(loading="lazy" src=preview.item_art_url width=210 height=210 style="height: auto; width: auto; max-height: 70px")

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extends includes/layout.pug
block view
.mx-auto.w100.wmx11.fs-body1#content
.s-table-container
table.s-table.s-table__bx.duration-last-col
thead
th Artist
th Label
th Albums
th Tracks
th Length
tbody
each item in items
tr
td= item.band_name
- let label = item.band_url.replace(/https?:\/\/(.*?)\.bandcamp\.com.*/, "$1")
td= label
td= item.album_count
td= item.track_count
td= item.total_duration

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mixin navi(key, value, icon, text)
a.s-navigation--item(href=and({[key]: value}) class={"is-selected": query[key] === value})&attributes(attributes)
if icon
!= icons.get(icon)
if text
span.ml4= text
block
doctype html
html
head
meta(charset="utf-8")
<meta name="viewport" content="width=device-width, initial-scale=1" />
title BC Explorer
link(rel="stylesheet" type="text/css" href="/static/stacks.min.css")
script(src="/static/htmx.js")
meta(name="htmx-config" content='{"requestClass":"is-loading"}')
style.
.themed {
--theme-base-primary-color-h: 191;
--theme-base-primary-color-s: 37%;
--theme-base-primary-color-l: 48%;
--theme-dark-primary-color-h: 191;
--theme-dark-primary-color-s: 45%;
--theme-dark-primary-color-l: 60%;
}
.s-navigation--item.is-loading svg, .s-tag.is-loading svg {
visibility: hidden;
}
.s-navigation__toggle.s-navigation {
--_na-item-bg: var(--black-150);
}
.duration-last-col td:last-child {
text-align: right;
white-space: pre;
}
.s-tag {
white-space: normal;
}
.s-sidebarwidget th {
font-weight: normal;
color: var(--black-400);
}
.album-grid-link {
--_li-fc: var(--black);
--_li-fc-visited: var(--black-400);
}
body.themed.theme-system.overflow-y-scroll(hx-boost="true")
header.s-topbar
.s-topbar--container.wmx9
.s-topbar--logo BC Explorer
.fl-grow1
nav
ul.s-navigation
li: +navi("arrange", "album", "album", "Album")
li: +navi("arrange", "artist", "people-tag", "Artist")
li: +navi("arrange", "label", "component", "Label")
li: +navi("arrange", "tag", "label", "Tag")
li: +navi("arrange", "track", "music-note", "Track")
.px16
nav
ul.s-navigation.s-navigation__toggle.g0
li: +navi("shape", "grid").brr0!= icons.get("view-grid")
li: +navi("shape", "list").blr0!= icons.get("table-rows")
.fl-grow1
#player(hx-preserve)
button.s-btn.s-btn__outlined.s-btn__xs!= icons.get("play")
.d-flex.py24.px16.g24.fs-body1
.fl-grow1
block view
div
.ps-sticky.t24.d-flex.fd-column.g12
if filter
.s-sidebarwidget.s-sidebarwidget__blue.d-flex.ai-center.gx16.jc-space-between.p8.pl16
!= icons.get("search")
div Searching for #[strong= filter]
.fl-grow1
a.s-btn.s-notice--btn(href=and({filter: null, filter_field: null})) Clear
.s-sidebarwidget.wmn3
.s-sidebarwidget--header Collection
table.s-sidebarwidget--content.s-sidebarwidget__items
tr.s-sidebarwidget--item
th albums
td= albumCount
tr.s-sidebarwidget--item
th singles
td= singleCount
tr.s-sidebarwidget--item
th tracks
td= trackCount
tr.s-sidebarwidget--item
th value
td #{displayCurrencySymbol}#{purchaseValue} #{displayCurrency}

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extends includes/layout.pug
block view
.mx-auto.w100.wmx9.fs-body1#content
.d-flex.fd-column.g4
each item in items
.d-flex.g4
.fl-grow1.pb12
- let minBandURL = item.band_url.replace(/https?:\/\/(.*?)\.bandcamp\.com.*/, "$1")
- let label = item.display_name.replace(/https?:\/\/(.*?)\.bandcamp\.com.*/, "$1")
.fs-headline1= label
.d-flex.fw-wrap.g4
a.s-tag.s-tag__xs(href=and({arrange: "album", filter_field: "band_url", filter: minBandURL}))
span.s-tag--sponsor!= icons.get("album", 16)
= item.album_count
a.s-tag.s-tag__xs(href=and({arrange: "artist", filter_field: "band_url", filter: minBandURL}))
span.s-tag--sponsor!= icons.get("people-tag", 16)
= item.artist_count
a.s-tag.s-tag__xs(href=and({arrange: "track", filter_field: "band_url", filter: minBandURL}))
span.s-tag--sponsor!= icons.get("music-note", 16)
= item.track_count
span.s-tag.s-tag__xs
span.s-tag--sponsor!= icons.get("compact-disc", 16)
= item.total_duration
each preview in item.previews
a.d-flex(href=preview.item_url)
img(loading="lazy" src=preview.item_art_url width=210 height=210 style="height: auto; width: auto; max-height: 70px")

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extends includes/layout.pug
block view
.mx-auto.w100.wmx11.fs-body1#content
.s-table-container
table.s-table.s-table__bx.duration-last-col
thead
th Label
th Albums
th Artists
th Tracks
th Length
tbody
each item in items
tr
- let minBandURL = item.band_url.replace(/https?:\/\/(.*?)\.bandcamp\.com.*/, "$1")
- let label = item.display_name.replace(/https?:\/\/(.*?)\.bandcamp\.com.*/, "$1")
td= label
td= item.album_count
td= item.artist_count
td= item.track_count
td= item.total_duration

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extends includes/layout.pug
block view
.mx-auto.w100.wmx11#content
.s-table-container
table.s-table.s-table__bx
thead
th #
th Title
th Artist
th Album
th Label
tbody
each item in items
tr
td
if item.why && item.featured_track == item.track_id
| ☆
else
= item.track_number || "-"
td: a(href=item.item_url)= item.title
td= item.artist
td= item.item_title
- let label = item.band_url.replace(/https?:\/\/(.*?)\.bandcamp\.com.*/, "$1")
td= label

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# BC Explorer
explore your bandcamp collection online
well, mostly online? you still need to run this application for yourself on your computer, so it isn't truly web scale
but the idea is you can more easily search your whole collection and play it streaming without downloading every mp3 to your computer and using a media player
(you _should_ download every mp3, though, because the bandcamp tos says they can take away your online access at any time)
## how to use
1. log into bandcamp in your browser
2. in the top right, click the button to view your collection, should take you to a url like https://bandcamp.com/cloudrac3r
3. open devtools and reload the page
4. go to network tab and save all as har, save as scripts/account.har
5. npm install
6. node scripts/populate-albums-tracks.js
7. node scripts/load-tags.js (if you want to be able to search through album tags. takes a while to run)
8. node server.js
## license
agpl 3

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routes/app.js Normal file
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// @ts-check
const {z} = require("zod")
const {defineEventHandler, getQuery, getValidatedQuery, sendRedirect, createError} = require("h3")
const {router, db, sync, select, from} = require("../passthrough")
const pugSync = sync.require("../pug-sync")
const displayCurrency = "NZD"
const displayCurrencySymbol = "$"
const currencyExchange = new Map([
["USD", 1],
["JPY", 0.0067],
["NZD", 0.57],
["EUR", 1.08],
["GBP", 1.3],
["CAD", 0.7],
["NOK", 0.1]
])
const sqls = {
album_grid: "SELECT item.*, count(*) AS track_count, iif(sum(duration) > 3600, cast(total(duration)/3600 AS INTEGER) || 'h ' || cast(total(duration)/60%60 AS INTEGER) || 'm', cast(total(duration)/60 AS INTEGER) || 'm') AS total_duration FROM item INNER JOIN track USING (item_id) {WHERE} GROUP BY item_id {ORDER}",
album_list: "SELECT item.*, count(*) AS track_count, iif(sum(duration) > 3600, cast(total(duration)/3600 AS INTEGER) || 'h ' || cast(total(duration)/60%60 AS INTEGER) || 'm', cast(total(duration)/60 AS INTEGER) || 'm') AS total_duration FROM item INNER JOIN track USING (item_id) {WHERE} GROUP BY item_id ORDER BY band_url, band_name COLLATE NOCASE, item_title COLLATE NOCASE",
artist_grid: "SELECT band_name, count(DISTINCT item_id) AS album_count, group_concat(DISTINCT band_url) AS labels, count(*) AS track_count, iif(sum(duration) > 3600, cast(total(duration)/3600 AS INTEGER) || 'h ' || cast(total(duration)/60%60 AS INTEGER) || 'm', cast(total(duration)/60 AS INTEGER) || 'm') AS total_duration FROM item INNER JOIN track USING (item_id) {WHERE} GROUP BY band_name ORDER BY band_name COLLATE NOCASE",
artist_list: "SELECT band_name, count(DISTINCT item_id) AS album_count, band_url, count(*) AS track_count, iif(sum(duration) > 3600, cast(total(duration)/3600 AS INTEGER) || 'h ' || cast(total(duration)/60%60 AS INTEGER) || 'm', cast(total(duration)/60 AS INTEGER) || 'm') AS total_duration FROM item INNER JOIN track USING (item_id) {WHERE} GROUP BY band_name ORDER BY band_name COLLATE NOCASE",
label_grid: "SELECT iif(count(DISTINCT band_name) = 1, band_name, band_url) AS display_name, band_url, count(DISTINCT item_id) AS album_count, count(DISTINCT band_name) AS artist_count, count(*) AS track_count, iif(sum(duration) > 3600, cast(total(duration)/3600 AS INTEGER) || 'h ' || cast(total(duration)/60%60 AS INTEGER) || 'm', cast(total(duration)/60 AS INTEGER) || 'm') AS total_duration FROM item INNER JOIN track USING (item_id) {WHERE} GROUP BY band_url ORDER BY display_name COLLATE NOCASE",
label_list: "SELECT iif(count(DISTINCT band_name) = 1, band_name, band_url) AS display_name, band_url, count(DISTINCT item_id) AS album_count, count(DISTINCT band_name) AS artist_count, count(*) AS track_count, iif(sum(duration) > 3600, cast(total(duration)/3600 AS INTEGER) || 'h ' || cast(total(duration)/60%60 AS INTEGER) || 'm', cast(total(duration)/60 AS INTEGER) || 'm') AS total_duration FROM item INNER JOIN track USING (item_id) {WHERE} GROUP BY band_url ORDER BY display_name COLLATE NOCASE",
track_list: "SELECT * FROM track INNER JOIN item USING (item_id) {WHERE} ORDER BY band_url, item_title COLLATE NOCASE, track_number"
}
function loadPreviews(locals, field, number) {
const previews = db.prepare(`SELECT ${field}, item_url, item_art_url FROM (SELECT ${field}, item_url, item_art_url, row_number() OVER (PARTITION BY ${field} ORDER BY purchased DESC) AS row_number FROM item) WHERE row_number <= ?`).all(number)
// TODO: performance?
for (const item of locals.items) {
item.previews = []
for (const preview of previews) {
if (preview[field] === item[field]) {
item.previews.push(preview)
}
}
}
}
const schema = z.object({
arrange: z.enum(["album", "artist", "label", "tag", "track"]),
shape: z.enum(["grid", "list"]),
filter_field: z.enum(["band_name", "band_url", "item_id"]).optional(),
filter: z.string().optional()
})
router.get("/", defineEventHandler({
onBeforeResponse: pugSync.compressResponse,
handler: async event => {
try {
var {arrange, shape, filter, filter_field} = await getValidatedQuery(event, schema.parse)
} catch (e) {
return sendRedirect(event, "/?arrange=album&shape=grid", 302)
}
const query = getQuery(event)
if (arrange === "track") {
shape = "list"
query.shape = "list"
}
const mode = `${arrange}_${shape}`
const params = []
let sql = sqls[mode]
if (filter_field && filter) {
sql = sql.replace("{WHERE}", `WHERE ${filter_field} LIKE ?`)
sql = sql.replace("{ORDER}", "ORDER BY item_title COLLATE NOCASE")
params.push(`%${filter}%`)
} else {
sql = sql.replace("{WHERE}", "")
sql = sql.replace("{ORDER}", "ORDER BY purchased DESC")
}
const prepared = db.prepare(sql)
const locals = {
items: prepared.all(params),
albumCount: db.prepare("SELECT count(*) FROM item WHERE item_type = 'album'").pluck().get(),
singleCount: db.prepare("SELECT count(*) FROM item WHERE item_type = 'track'").pluck().get(),
trackCount: db.prepare("SELECT count(*) FROM track").pluck().get(),
purchaseValue: Math.round(select("item", ["currency", "price"]).all().map(c => {
return (currencyExchange.get(c.currency) || 0.5) * c.price / (currencyExchange.get(displayCurrency) || 1) / 10
}).reduce((a, c) => a + c, 0)) * 10,
displayCurrencySymbol,
displayCurrency,
query
}
if (mode === "artist_grid") {
loadPreviews(locals, "band_name", 4)
} else if (mode === "label_grid") {
loadPreviews(locals, "band_url", 6)
}
return pugSync.render(event, `${arrange}_${shape}.pug`, locals)
}
}))

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// @ts-check
const domino = require("domino")
const sqlite = require("better-sqlite3")
const db = new sqlite("bc-explorer.db", {fileMustExist: true})
require("../db/migrate").migrate(db)
Object.assign(require("../passthrough"), {db})
const {from} = require("../db/orm")
const i = db.prepare("INSERT OR IGNORE INTO item_tag (item_id, tag) VALUES (?, ?)")
;(async () => {
const untaggedItems = from("item").select("item_id", "item_title", "item_url").join("item_tag", "item_id", "left").and("WHERE tag IS NULL").all()
console.log(`Downloading tags for ${untaggedItems.length} purchased items`)
let processed = 1
for (const {item_id, item_title, item_url} of untaggedItems) {
const html = await fetch(item_url).then(res => res.text())
const doc = domino.createDocument(html)
// @ts-ignore
const tags = [...doc.querySelectorAll(".tag").cache].map(e => e.textContent)
console.log(`[${processed}/${untaggedItems.length}] tagging ${item_title} with ${tags.join(", ")}`)
db.transaction(() => {
for (const tag of tags) {
i.run(item_id, tag)
}
})()
processed++
}
})()

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// @ts-check
const assert = require("assert/strict")
const fs = require("fs")
const sqlite = require("better-sqlite3")
const har = JSON.parse(fs.readFileSync("scripts/account.har", "utf8"))
;(async () => {
const collection_summary = har.log.entries.find(e => e.request.url === "https://bandcamp.com/api/fan/2/collection_summary")
assert(collection_summary)
const body = JSON.parse(collection_summary.response.content.text)
const {fan_id} = body
const count = Object.keys(body.collection_summary.tralbum_lookup).length
const newestPurchase = Object.values(body.collection_summary.tralbum_lookup).sort((a, b) => new Date(b.purchased).getTime() - new Date(a.purchased).getTime())[0]
const fakeLastToken = `${Math.floor(new Date(newestPurchase.purchased).getTime() / 1000 + 1)}:${newestPurchase.item_id}:${newestPurchase.item_type}::`
const Cookie = collection_summary.request.headers.find(h => h.name === "Cookie").value
assert(Cookie)
const items = await fetch("https://bandcamp.com/api/fancollection/1/collection_items", {
method: "POST",
headers: {
Cookie
},
body: JSON.stringify({
fan_id,
older_than_token: fakeLastToken,
count
})
}).then(res => res.json())
console.log(`Found ${items.items.length} purchased items in your account`)
const db = new sqlite("bc-explorer.db")
require("../db/migrate").migrate(db)
const columns = ["item_id", "item_type", "band_id", "added", "updated", "purchased", "featured_track", "why", "also_collected_count", "item_title", "item_url", "item_art_url", "band_name", "band_url", "featured_track_title", "featured_track_number", "featured_track_duration", "album_id", "album_title", "price", "currency", "label", "label_id"]
const upsert_columns = ["added", "updated", "purchased"]
const preparedItem = db.prepare(`INSERT OR IGNORE INTO item (${columns.join(", ")}) VALUES (${columns.map(x => "@" + x).join(", ")}) ON CONFLICT DO UPDATE SET ${upsert_columns.map(x => `${x} = @${x}`).join(", ")}`)
db.transaction(() => {
for (const item of items.items) {
preparedItem.run({
...item,
purchased: new Date(item.purchased).getTime(),
added: new Date(item.added).getTime(),
updated: new Date(item.updated).getTime()
})
}
})()
const storedItemCount = db.prepare("SELECT count(*) AS count FROM item").pluck().get()
console.log(`Stored ${storedItemCount} purchased items`)
const preparedTrack = db.prepare("INSERT OR IGNORE INTO track (item_id, track_id, title, artist, track_number, duration, mp3) VALUES (@item_id, @track_id, @title, @artist, @track_number, @duration, @mp3)")
db.transaction(() => {
for (const [key, tracklist] of Object.entries(items.tracklists)) {
assert.match(key[0], /[at]/)
for (const track of tracklist) {
preparedTrack.run({
item_id: key.slice(1),
track_id: track.id,
mp3: track.file?.["mp3-v0"],
...track
})
}
}
})()
const storedTrackCount = db.prepare("SELECT count(*) AS count FROM track").pluck().get()
console.log(`Stored ${storedTrackCount} tracks`)
console.log("To load tag data, please now run node ./scripts/load-tags.js")
})()

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// @ts-check
const HeatSync = require("heatsync")
const assert = require("assert")
const fs = require("fs")
const sqlite = require("better-sqlite3")
const {createServer} = require("http")
const h3 = require("h3")
const {createApp, createRouter, toNodeListener} = require("h3")
const {defineEventHandler, defaultContentType, getRequestHeader, setResponseHeader, handleCacheHeaders} = h3
const passthrough = require("./passthrough")
const sync = new HeatSync()
passthrough.db = new sqlite("bc-explorer.db")
const app = createApp()
const router = createRouter()
app.use(router)
require("./db/migrate").migrate(passthrough.db)
const {from, select} = sync.require("./db/orm")
Object.assign(passthrough, {sync, router, from, select})
/** @type {import("./pug-sync")} */
const pugSync = sync.require("./pug-sync")
/** @type {import("./icons")} */
const icons = sync.require("./icons")
// Pug
pugSync.addGlobals({h3, select, icons})
pugSync.createRoute(router, "/", "home.pug")
pugSync.createRoute(router, "/ok", "ok.pug")
// Routes
sync.require("./routes/app")
// Files
router.get("/static/stacks.min.css", defineEventHandler({
onBeforeResponse: pugSync.compressResponse,
handler: async event => {
handleCacheHeaders(event, {maxAge: 86400})
defaultContentType(event, "text/css")
return fs.promises.readFile(require.resolve("@stackoverflow/stacks/dist/css/stacks.css"), "utf-8")
}
}))
router.get("/static/htmx.js", defineEventHandler({
onBeforeResponse: pugSync.compressResponse,
handler: async event => {
handleCacheHeaders(event, {maxAge: 86400})
defaultContentType(event, "text/javascript")
return fs.promises.readFile(require.resolve("htmx.org/dist/htmx.js"), "utf-8")
}
}))
createServer(toNodeListener(app)).listen(2239)