add JSDoc typescript sigh

This commit is contained in:
Andre Staltz 2023-09-14 12:23:21 +03:00
parent ceea5b91c1
commit de9618667d
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GPG Key ID: 9EDE23EA7E8A4890
2 changed files with 169 additions and 30 deletions

View File

@ -2,12 +2,35 @@ const MsgV3 = require('ppppp-db/msg-v3')
const PREFIX = 'record_v1__'
/**
* @typedef {import('ppppp-db').Msg} Msg
* @typedef {ReturnType<import('ppppp-db').init>} PPPPPDB
* @typedef {import('ppppp-db').RecPresent} RecPresent
* @typedef {{
* hook: (
* cb: (
* this: any,
* fn: (this: any, ...a: Array<any>) => any,
* args: Array<any>
* ) => void
* ) => void
* }} ClosableHook
*/
/**
* @typedef {string} Subdomain
* @typedef {string} MsgID
* @typedef {`${Subdomain}.${string}`} SubdomainField
*/
/**
* @template T
* @typedef {T extends void ?
* (...args: [Error] | []) => void :
* (...args: [Error] | [null, T]) => void
* } CB
*/
/**
* @param {string} domain
* @returns {Subdomain}
@ -24,43 +47,86 @@ function fromSubdomain(subdomain) {
return PREFIX + subdomain
}
/**
* @param {{
* db: PPPPPDB | null,
* close: ClosableHook,
* }} peer
* @returns {asserts peer is { db: PPPPPDB, close: ClosableHook }}
*/
function assertDBExists(peer) {
if (!peer.db) throw new Error('record plugin requires ppppp-db plugin')
}
module.exports = {
name: 'record',
manifest: {},
/**
* @param {{
* db: PPPPPDB | null,
* close: ClosableHook,
* }} peer
* @param {any} config
*/
init(peer, config) {
assertDBExists(peer)
//#region state
let accountID = /** @type {string | null} */ (null)
let cancelListeningToRecordAdded = null
let cancelOnRecordAdded = /** @type {CallableFunction | null} */ (null)
let loadPromise = /** @type {Promise<void> | null} */ (null)
const tangles = /** @type {Map<Subdomain, unknown>} */ (new Map())
const tangles = /** @type {Map<Subdomain, MsgV3.Tangle>} */ (new Map())
const fieldRoots = {
/** @type {Map<SubdomainField, Set<MsgID>} */
_map: new Map(),
_map: /** @type {Map<SubdomainField, Set<MsgID>>} */ (new Map()),
/**
* @param {string} subdomain
* @param {string} field
* @returns {SubdomainField}
*/
_getKey(subdomain, field) {
return subdomain + '.' + field
return `${subdomain}.${field}`
},
get(subdomain, field = null) {
if (field) {
const key = this._getKey(subdomain, field)
return this._map.get(key)
} else {
const out = {}
for (const [key, value] of this._map.entries()) {
if (key.startsWith(subdomain + '.')) {
const field = key.slice(subdomain.length + 1)
out[field] = [...value]
}
/**
* @param {string} subdomain
* @returns {Record<string, Array<MsgID>>}
*/
getAll(subdomain) {
const out = /** @type {Record<string, Array<MsgID>>} */ ({})
for (const [key, value] of this._map.entries()) {
if (key.startsWith(subdomain + '.')) {
const field = key.slice(subdomain.length + 1)
out[field] = [...value]
}
return out
}
return out
},
/**
* @param {string} subdomain
* @param {string} field
* @returns {Set<MsgID> | undefined}
*/
get(subdomain, field) {
const key = this._getKey(subdomain, field)
return this._map.get(key)
},
/**
* @param {string} subdomain
* @param {string} field
* @param {MsgID} msgID
*/
add(subdomain, field, msgID) {
const key = this._getKey(subdomain, field)
const set = this._map.get(key) ?? new Set()
set.add(msgID)
return this._map.set(key, set)
},
/**
* @param {string} subdomain
* @param {string} field
* @param {MsgID} msgID
*/
del(subdomain, field, msgID) {
const key = this._getKey(subdomain, field)
const set = this._map.get(key)
@ -77,13 +143,18 @@ module.exports = {
//#region active processes
peer.close.hook(function (fn, args) {
cancelListeningToRecordAdded()
cancelOnRecordAdded?.()
fn.apply(this, args)
})
//#endregion
//#region internal methods
function isValidRecordRootMsg(msg) {
/**
* @private
* @param {Msg | null | undefined} msg
* @returns {msg is Msg}
*/
function isValidRecordMoot(msg) {
if (!msg) return false
if (msg.metadata.account !== accountID) return false
const domain = msg.metadata.domain
@ -91,6 +162,11 @@ module.exports = {
return MsgV3.isMoot(msg, accountID, domain)
}
/**
* @private
* @param {Msg | null | undefined} msg
* @returns {msg is Msg}
*/
function isValidRecordMsg(msg) {
if (!msg) return false
if (!msg.data) return false
@ -103,6 +179,11 @@ module.exports = {
return true
}
/**
* @private
* @param {string} rootID
* @param {Msg} root
*/
function learnRecordRoot(rootID, root) {
const subdomain = toSubdomain(root.metadata.domain)
const tangle = tangles.get(subdomain) ?? new MsgV3.Tangle(rootID)
@ -110,6 +191,11 @@ module.exports = {
tangles.set(subdomain, tangle)
}
/**
* @private
* @param {string} msgID
* @param {Msg} msg
*/
function learnRecordUpdate(msgID, msg) {
const { account, domain } = msg.metadata
const rootID = MsgV3.getMootID(account, domain)
@ -135,9 +221,14 @@ module.exports = {
}
}
/**
* @private
* @param {string} msgID
* @param {Msg} msg
*/
function maybeLearnAboutRecord(msgID, msg) {
if (msg.metadata.account !== accountID) return
if (isValidRecordRootMsg(msg)) {
if (isValidRecordMoot(msg)) {
learnRecordRoot(msgID, msg)
return
}
@ -147,12 +238,24 @@ module.exports = {
}
}
/**
* @private
* @param {CB<void>} cb
* @returns
*/
function loaded(cb) {
if (cb === void 0) return loadPromise
else loadPromise.then(() => cb(null), cb)
else loadPromise?.then(() => cb(), cb)
}
/**
* @private
* @param {string} subdomain
* @returns {number}
*/
function _squeezePotential(subdomain) {
assertDBExists(peer)
if (!accountID) throw new Error('Cannot squeeze potential before loading')
// TODO: improve this so that the squeezePotential is the size of the
// tangle suffix built as a slice from the fieldRoots
const mootID = MsgV3.getMootID(accountID, fromSubdomain(subdomain))
@ -169,7 +272,14 @@ module.exports = {
return maxDepth - minDepth
}
/**
* @param {string} subdomain
* @param {Record<string, any>} update
* @param {CB<boolean>} cb
*/
function forceUpdate(subdomain, update, cb) {
assertDBExists(peer)
if (!accountID) throw new Error('Cannot force update before loading')
const domain = fromSubdomain(subdomain)
// Populate supersedes
@ -184,6 +294,7 @@ module.exports = {
(err, rec) => {
// prettier-ignore
if (err) return cb(new Error('Failed to create msg when force updating Record', { cause: err }))
// @ts-ignore
cb(null, true)
}
)
@ -194,34 +305,49 @@ module.exports = {
/**
* @param {string} id
* @param {CB<void>} cb
*/
function load(id, cb) {
assertDBExists(peer)
accountID = id
loadPromise = new Promise((resolve, reject) => {
for (const { id, msg } of peer.db.records()) {
maybeLearnAboutRecord(id, msg)
for (const rec of peer.db.records()) {
if (!rec.msg) continue
maybeLearnAboutRecord(rec.id, rec.msg)
}
cancelListeningToRecordAdded = peer.db.onRecordAdded(({ id, msg }) => {
maybeLearnAboutRecord(id, msg)
cancelOnRecordAdded = peer.db.onRecordAdded(
(/** @type {RecPresent} */ rec) => {
if (!rec.msg) return
maybeLearnAboutRecord(rec.id, rec.msg)
})
resolve()
cb()
})
}
/**
* @param {string} id
* @param {string} subdomain
*/
function getFieldRoots(id, subdomain) {
// prettier-ignore
if (id !== accountID) return cb(new Error(`Cannot getFieldRoots for another user's record. Given ID was "${id}"`))
return fieldRoots.get(subdomain)
if (id !== accountID) throw new Error(`Cannot getFieldRoots for another user's record. Given ID was "${id}"`)
return fieldRoots.getAll(subdomain)
}
/**
* @public
* @param {string} id
* @param {string} subdomain
*/
function get(id, subdomain) {
assertDBExists(peer)
const domain = fromSubdomain(subdomain)
const mootID = MsgV3.getMootID(id, domain)
const tangle = peer.db.getTangle(mootID)
if (!tangle || tangle.size === 0) return {}
const msgIDs = tangle.topoSort()
const record = {}
const record = /** @type {Record<string, any>}*/ ({})
for (const msgID of msgIDs) {
const msg = peer.db.get(msgID)
if (isValidRecordMsg(msg)) {
@ -232,6 +358,13 @@ module.exports = {
return record
}
/**
* @public
* @param {string} id
* @param {string} subdomain
* @param {Record<string, any>} update
* @param {CB<boolean>} cb
*/
function update(id, subdomain, update, cb) {
// prettier-ignore
if (id !== accountID) return cb(new Error(`Cannot update another user's record. Given ID was "${id}"`))
@ -251,6 +384,11 @@ module.exports = {
})
}
/**
* @param {string} id
* @param {string} subdomain
* @param {CB<boolean>} cb
*/
function squeeze(id, subdomain, cb) {
// prettier-ignore
if (id !== accountID) return cb(new Error(`Cannot squeeze another user's record. Given ID was "${id}"`))
@ -259,9 +397,10 @@ module.exports = {
loaded(() => {
const record = get(id, subdomain)
forceUpdate(subdomain, record, (err) => {
forceUpdate(subdomain, record, (err, _forceUpdated) => {
// prettier-ignore
if (err) return cb(new Error('Failed to force update when squeezing Record', { cause: err }))
// @ts-ignore
cb(null, true)
})
})

View File

@ -28,7 +28,7 @@
"devDependencies": {
"bs58": "^5.0.0",
"c8": "7",
"ppppp-db": "github:staltz/ppppp-db",
"ppppp-db": "file:../db",
"ppppp-caps": "github:staltz/ppppp-caps",
"ppppp-keypair": "github:staltz/ppppp-keypair",
"rimraf": "^4.4.0",