/
index.js
105 lines (93 loc) · 2.57 KB
/
index.js
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
require('util.promisify/shim')()
let PicoEngineCore = require('pico-engine-core')
let leveljs = require('level-js')
let levelup = require('levelup')
let fs = require('fs')
let krlCompiler = require('krl-compiler')
let krlCompilerVersion = require('krl-compiler/package.json').version
let crypto = require('crypto')
/* eslint-disable */
let builtInRulesets = [
{
src: fs.readFileSync(__dirname + '/../../pico-engine/krl/io.picolabs.wrangler.krl', 'utf8'),
meta: { url: 'pico-engine.js/io.picolabs.wrangler.krl' }
},
{
src: fs.readFileSync(__dirname + '/../../pico-engine/krl/io.picolabs.visual_params.krl', 'utf8'),
meta: { url: 'pico-engine.js/io.picolabs.visual_params.krl' }
},
{
src: fs.readFileSync(__dirname + '/../../pico-engine/krl/io.picolabs.subscription.krl', 'utf8'),
meta: { url: 'pico-engine.js/io.picolabs.subscription.krl' }
}
]
/* eslint-enable */
window.PicoEngine = async function PicoEngine (dbName, cacheDbName) {
dbName = dbName || 'pico-engine'
cacheDbName = cacheDbName || (dbName + '-ruleset-cache')
let cacheDB = levelup(leveljs(cacheDbName))
async function compileAndLoadRuleset (rsInfo) {
let shasum = crypto.createHash('sha256')
shasum.update(rsInfo.src)
let hash = shasum.digest('hex')
let key = krlCompilerVersion + '-' + hash
let jsSrc
try {
let data = await cacheDB.get(key)
jsSrc = data.toString()
} catch (err) {
if (!err.notFound) {
throw err
}
}
if (!jsSrc) {
jsSrc = krlCompiler(rsInfo.src, {
inline_source_map: true
}).code
await cacheDB.put(key, jsSrc)
}
return eval(jsSrc)// eslint-disable-line no-eval
}
let pe = PicoEngineCore({
host: 'browser',
db: {
db: leveljs(dbName)
},
// RIDs that will be automatically installed on the root pico
rootRIDs: [
'io.picolabs.wrangler',
'io.picolabs.visual_params',
'io.picolabs.subscription'
],
compileAndLoadRuleset: compileAndLoadRuleset
})
await pe.start(builtInRulesets)
let rootEci = await pe.getRootECI()
let myself = await pe.runQuery({
eci: rootEci,
rid: 'io.picolabs.wrangler',
name: 'myself'
})
if (myself.eci !== rootEci) {
await pe.signalEvent({
eci: rootEci,
eid: '19',
domain: 'wrangler',
type: 'root_created',
attrs: {
eci: rootEci
}
})
await pe.signalEvent({
eci: rootEci,
eid: '31',
domain: 'visual',
type: 'update',
attrs: {
dname: 'Root Pico',
color: '#87cefa'
}
})
}
return pe
}