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pzp-db
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getTangleDeletablesAndErasables()

This commit is contained in:
Andre Staltz 2023-04-15 16:42:27 +03:00
parent fd7b76808b
commit 01cb78c65a
3 changed files with 18 additions and 7 deletions
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11
lib/plugin.js
View File

@ -273,6 +273,8 @@ exports.init = function initDB(peer, config) {
function del(msgId, cb) {
const rec = getRecord(msgId)
if (!rec) return cb()
if (!rec.msg) return cb()
const { offset, size, seq } = rec.misc
recs[rec.misc.seq] = { misc: { offset, size, seq } }
log.onDrain(() => {
@ -282,11 +284,19 @@ exports.init = function initDB(peer, config) {
function erase(msgId, cb) {
const rec = getRecord(msgId)
if (!rec) return cb()
if (!rec.msg) return cb()
if (!rec.msg.content) return cb()
recs[rec.misc.seq].msg = FeedV1.erase(rec.msg)
// FIXME: persist this change to disk!! Not supported by AAOL yet
cb()
}
function getTangleDeletablesAndErasables(tangleId, msgHash) {
const tangle = new Tangle(tangleId, records())
return tangle.getDeletablesAndErasables(msgHash)
}
function* msgs() {
for (let i = 0; i < recs.length; i++) {
const rec = recs[i]
@ -313,6 +323,7 @@ exports.init = function initDB(peer, config) {
del,
erase,
onRecordAdded,
getTangleDeletablesAndErasables,
msgs,
records,

6
lib/tangle.js
View File

@ -186,13 +186,13 @@ class Tangle {
}
getDeletablesAndErasables(msgHash) {
const emptyables = this.#shortestPathToRoot(msgHash)
const erasables = this.#shortestPathToRoot(msgHash)
const sorted = this.topoSort()
const index = sorted.indexOf(msgHash)
const deletables = sorted.filter(
(msgHash, i) => i < index && !emptyables.includes(msgHash)
(msgHash, i) => i < index && !erasables.includes(msgHash)
)
return { deletables, emptyables }
return { deletables, erasables }
}
getMaxDepth() {

8
test/tangle.test.js
View File

@ -163,19 +163,19 @@ test('Tangle.getLipmaaSet', (t) => {
test('Tangle.getDeletablesAndErasables basic', (t) => {
const tangle = new Tangle(rootPost, peer.db.records())
const { deletables, emptyables } = tangle.getDeletablesAndErasables(reply2A)
const { deletables, erasables } = tangle.getDeletablesAndErasables(reply2A)
t.deepEquals(deletables, [reply1Hi], 'deletables')
t.deepEquals(emptyables, [reply1Lo, rootPost], 'emptyables')
t.deepEquals(erasables, [reply1Lo, rootPost], 'erasables')
t.end()
})
test('Tangle.getDeletablesAndErasables with lipmaa', (t) => {
const tangle = new Tangle(rootPost, peer.db.records())
const { deletables, emptyables } = tangle.getDeletablesAndErasables(reply3Lo)
const { deletables, erasables } = tangle.getDeletablesAndErasables(reply3Lo)
t.deepEquals(deletables, [reply1Lo, reply1Hi, reply2A], 'deletables')
t.deepEquals(emptyables, [rootPost], 'emptyables')
t.deepEquals(erasables, [rootPost], 'erasables')
t.end()
})