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feat(store): live sync store records on connection to every peer

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This commit is contained in:
Alexey Kasyanchuk 2018-06-18 14:55:40 +03:00
parent 2d653caaa7
commit 19380dbd9f
1 changed files with 19 additions and 9 deletions
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26
src/background/store.js
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@ -7,6 +7,10 @@ module.exports = class P2PStore extends EventEmitter {
{ {
super() super()
this.id = 0 this.id = 0
Object.defineProperty(p2p.info, 'store', {
enumerable: true,
get: () => this.id
});
this.synchronized = false this.synchronized = false
console.log('connect p2p store...') console.log('connect p2p store...')
@ -22,12 +26,14 @@ module.exports = class P2PStore extends EventEmitter {
console.log('store db index', this.id) console.log('store db index', this.id)
let lock = false this.p2p.events.on('peer', (peer) => {
this.p2p.events.on('peer', () => { if(peer.info && peer.info.store)
if(lock) {
return if(peer.info.store > this.id)
lock = true this.sync(peer) // sync db
setTimeout(() => this.sync(), 1000) else if(peer.info.store === this.id)
this.synchronized = true
}
}) })
}) })
@ -69,9 +75,9 @@ module.exports = class P2PStore extends EventEmitter {
}) })
} }
sync() sync(peer)
{ {
console.log('sync db on version', this.id) console.log('sync db on version', this.id, peer ? `from peer ${peer.peerId}` : '')
const processSync = (data, nil, peer) => { const processSync = (data, nil, peer) => {
if(!data || !data.records) if(!data || !data.records)
return return
@ -88,7 +94,11 @@ module.exports = class P2PStore extends EventEmitter {
peer.emit('dbSync', {id: this.id}, processSync) peer.emit('dbSync', {id: this.id}, processSync)
} }
} }
if(peer)
peer.emit('dbSync', {id: this.id}, processSync)
else
this.p2p.emit('dbSync', {id: this.id}, processSync) this.p2p.emit('dbSync', {id: this.id}, processSync)
this.synchronized = true this.synchronized = true
} }