altair-graphql-core
Version:
Several of the core logic for altair graphql client
94 lines • 3.3 kB
JavaScript
;
Object.defineProperty(exports, "__esModule", { value: true });
exports.ScriptEvaluatorWorkerEngine = void 0;
const uuid_1 = require("uuid");
const events_1 = require("./events");
const context_1 = require("./context");
const workerHandlerNames = [
'setCookie',
'request',
'getStorageItem',
'setStorageItem',
];
class ScriptEvaluatorWorkerEngine {
constructor(worker) {
this.worker = worker;
}
start() {
this.worker.onMessage(async (e) => {
switch (e.type) {
case events_1.SCRIPT_INIT_EXECUTE:
try {
await this.initExecute(e.payload);
}
catch (err) {
await this.makeCall('scriptError', err);
}
break;
}
});
}
async initExecute(payload) {
const [script, data] = payload;
const res = await new Promise((resolve, reject) => {
this.worker.onError((err) => {
reject(err);
});
const clonedMutableData = JSON.parse(JSON.stringify(data));
// build handlers
const handlers = workerHandlerNames.reduce((acc, key) => {
acc[key] = ((...args) => {
return this.makeCall(key, ...args);
}); // TODO: Look into this typing issue.
return acc;
}, {});
const context = {
altair: (0, context_1.getGlobalContext)(clonedMutableData, handlers),
alert: (msg) => this.makeCall('alert', msg),
};
const contextEntries = Object.entries(context);
try {
const res = function () {
return eval(`
(async(${contextEntries.map((e) => e[0]).join(',')}) => {
${script};
return altair.data;
})(...this.__ctxE.map(e => e[1]));
`);
}.call({ __ctxE: contextEntries });
return resolve(res);
}
catch (e) {
return reject(e);
}
});
if (res.__toSetActiveEnvironment) {
// update active environment
this.makeCall('updateActiveEnvironment', res.__toSetActiveEnvironment);
}
this.makeCall('executeComplete', res);
}
makeCall(type, ...args) {
return new Promise((resolve, reject) => {
const id = (0, uuid_1.v4)();
// TODO: cleanup listener
this.worker.onMessage((e) => {
switch (e.type) {
case `${type}_response`:
if (e.payload.id !== id) {
return;
}
return resolve(e.payload.response);
case `${type}_error`:
if (e.payload.id !== id) {
return;
}
return reject(e.payload.error);
}
});
this.worker.send(type, { id, args });
});
}
}
exports.ScriptEvaluatorWorkerEngine = ScriptEvaluatorWorkerEngine;
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