@ortoo/angular-resource/lib/dbs/webworker/db.js

Magical CRUD resource management for angular

import { isObject } from 'lodash';
import { EventEmitter } from '../../emitter';
import { Database } from '../../types';
import { uuid } from '../../utils';
// These are the operators nedb supports
const simpleOperators = {
    $and: true,
    $exists: true,
    $gt: true,
    $gte: true,
    $in: true,
    $lt: true,
    $lte: true,
    $ne: true,
    $nin: true,
    $not: true,
    $or: true,
    $regex: true,
    $size: true,
};
export function createWebWorkerDbFactory(worker) {
    let workerEmitter = new EventEmitter();
    worker.onmessage = (event) => {
        workerEmitter.emit('message', event);
    };
    class WebWorkerDb extends Database {
        constructor() {
            super();
            this.worker = worker;
            this.cbMaps = {};
            this.dbid = uuid();
            workerEmitter.addListener('message', (event) => {
                let data = event.data.data;
                let error = event.data.error;
                let id = event.data.id;
                let cb = this.cbMaps[id];
                if (cb) {
                    cb(error, data);
                }
            });
        }
        update(res) {
            if (res.$deleted) {
                return this.runWorkerFunction('remove', res.$id);
            }
            else {
                let doc = res.$toObject();
                // Stick on the internal id
                doc.$id = res.$id;
                return this.runWorkerFunction('update', doc);
            }
        }
        query(qry) {
            return this.runWorkerFunction('query', qry);
        }
        qryIsSimple(qry) {
            let simple = true;
            if (Array.isArray(qry)) {
                qry.forEach(val => {
                    let kosher = this.qryIsSimple(val);
                    if (!kosher) {
                        simple = false;
                        return false;
                    }
                });
            }
            else if (isObject(qry)) {
                for (let key of Object.keys(qry)) {
                    let val = qry[key];
                    // The key is fine if it doesn't begin with $ or is a simple operator
                    let kosherKey = (key[0] !== '$') || simpleOperators[key];
                    if (!kosherKey) {
                        simple = false;
                        break;
                    }
                    let valKosher = this.qryIsSimple(val);
                    if (!valKosher) {
                        simple = false;
                        break;
                    }
                }
            }
            return simple;
        }
        runWorkerFunction(fnName, ...args) {
            return new Promise((resolve, reject) => {
                let id = uuid();
                this.worker.postMessage({
                    fnName,
                    id,
                    dbid: this.dbid,
                    args,
                });
                this.cbMaps[id] = (err, resp) => {
                    delete this.cbMaps[id];
                    if (err) {
                        reject(err);
                    }
                    else {
                        resolve(resp);
                    }
                };
            });
        }
    }
    return () => {
        return new WebWorkerDb();
    };
}
//# sourceMappingURL=data:application/json;base64,{"version":3,"file":"db.js","sourceRoot":"/@ortoo/angular-resource/","sources":["dbs/webworker/db.ts"],"names":[],"mappings":"AAAA,OAAO,EAAE,QAAQ,EAAE,MAAM,QAAQ,CAAC;AAElC,OAAO,EAAE,YAAY,EAAE,MAAM,eAAe,CAAC;AAC7C,OAAO,EAAE,QAAQ,EAAc,MAAM,aAAa,CAAC;AACnD,OAAO,EAAE,IAAI,EAAE,MAAM,aAAa,CAAC;AAEnC,wCAAwC;AACxC,MAAM,eAAe,GAAG;IACtB,IAAI,EAAE,IAAI;IACV,OAAO,EAAE,IAAI;IACb,GAAG,EAAE,IAAI;IACT,IAAI,EAAE,IAAI;IACV,GAAG,EAAE,IAAI;IACT,GAAG,EAAE,IAAI;IACT,IAAI,EAAE,IAAI;IACV,GAAG,EAAE,IAAI;IACT,IAAI,EAAE,IAAI;IACV,IAAI,EAAE,IAAI;IACV,GAAG,EAAE,IAAI;IACT,MAAM,EAAE,IAAI;IACZ,KAAK,EAAE,IAAI;CACZ,CAAC;AAMF,MAAM,mCAAmC,MAAc;IACrD,IAAI,aAAa,GAAG,IAAI,YAAY,EAAE,CAAC;IAEvC,MAAM,CAAC,SAAS,GAAG,CAAC,KAAmB;QACrC,aAAa,CAAC,IAAI,CAAC,SAAS,EAAE,KAAK,CAAC,CAAC;IACvC,CAAC,CAAC;IAEF,iBAAkB,SAAQ,QAAQ;QAKhC;YACE,KAAK,EAAE,CAAC;YAER,IAAI,CAAC,MAAM,GAAG,MAAM,CAAC;YACrB,IAAI,CAAC,MAAM,GAAG,EAAE,CAAC;YACjB,IAAI,CAAC,IAAI,GAAG,IAAI,EAAE,CAAC;YAEnB,aAAa,CAAC,WAAW,CAAC,SAAS,EAAE,CAAC,KAAmB;gBACvD,IAAI,IAAI,GAAG,KAAK,CAAC,IAAI,CAAC,IAAI,CAAC;gBAC3B,IAAI,KAAK,GAAG,KAAK,CAAC,IAAI,CAAC,KAAK,CAAC;gBAC7B,IAAI,EAAE,GAAG,KAAK,CAAC,IAAI,CAAC,EAAE,CAAC;gBACvB,IAAI,EAAE,GAAG,IAAI,CAAC,MAAM,CAAC,EAAE,CAAC,CAAC;gBAEzB,EAAE,CAAC,CAAC,EAAE,CAAC,CAAC,CAAC;oBACP,EAAE,CAAC,KAAK,EAAE,IAAI,CAAC,CAAC;gBAClB,CAAC;YACH,CAAC,CAAC,CAAC;QACL,CAAC;QAEM,MAAM,CAAC,GAAe;YAC3B,EAAE,CAAC,CAAC,GAAG,CAAC,QAAQ,CAAC,CAAC,CAAC;gBACjB,MAAM,CAAC,IAAI,CAAC,iBAAiB,CAAC,QAAQ,EAAE,GAAG,CAAC,GAAG,CAAC,CAAC;YACnD,CAAC;YAAC,IAAI,CAAC,CAAC;gBACN,IAAI,GAAG,GAAG,GAAG,CAAC,SAAS,EAAE,CAAC;gBAC1B,2BAA2B;gBAC3B,GAAG,CAAC,GAAG,GAAG,GAAG,CAAC,GAAG,CAAC;gBAClB,MAAM,CAAC,IAAI,CAAC,iBAAiB,CAAC,QAAQ,EAAE,GAAG,CAAC,CAAC;YAC/C,CAAC;QACH,CAAC;QAEM,KAAK,CAAC,GAAQ;YACnB,MAAM,CAAC,IAAI,CAAC,iBAAiB,CAAC,OAAO,EAAE,GAAG,CAAsB,CAAC;QACnE,CAAC;QAEM,WAAW,CAAC,GAAQ;YACzB,IAAI,MAAM,GAAG,IAAI,CAAC;YAElB,EAAE,CAAC,CAAC,KAAK,CAAC,OAAO,CAAC,GAAG,CAAC,CAAC,CAAC,CAAC;gBACvB,GAAG,CAAC,OAAO,CAAC,GAAG;oBACb,IAAI,MAAM,GAAG,IAAI,CAAC,WAAW,CAAC,GAAG,CAAC,CAAC;oBACnC,EAAE,CAAC,CAAC,CAAC,MAAM,CAAC,CAAC,CAAC;wBACZ,MAAM,GAAG,KAAK,CAAC;wBACf,MAAM,CAAC,KAAK,CAAC;oBACf,CAAC;gBACH,CAAC,CAAC,CAAC;YACL,CAAC;YAAC,IAAI,CAAC,EAAE,CAAC,CAAC,QAAQ,CAAC,GAAG,CAAC,CAAC,CAAC,CAAC;gBACzB,GAAG,CAAC,CAAC,IAAI,GAAG,IAAI,MAAM,CAAC,IAAI,CAAC,GAAG,CAAC,CAAC,CAAC,CAAC;oBACjC,IAAI,GAAG,GAAG,GAAG,CAAC,GAAG,CAAC,CAAC;oBACnB,qEAAqE;oBACrE,IAAI,SAAS,GAAG,CAAC,GAAG,CAAC,CAAC,CAAC,KAAK,GAAG,CAAC,IAAI,eAAe,CAAC,GAAG,CAAC,CAAC;oBAEzD,EAAE,CAAC,CAAC,CAAC,SAAS,CAAC,CAAC,CAAC;wBACf,MAAM,GAAG,KAAK,CAAC;wBACf,KAAK,CAAC;oBACR,CAAC;oBAED,IAAI,SAAS,GAAG,IAAI,CAAC,WAAW,CAAC,GAAG,CAAC,CAAC;oBAEtC,EAAE,CAAC,CAAC,CAAC,SAAS,CAAC,CAAC,CAAC;wBACf,MAAM,GAAG,KAAK,CAAC;wBACf,KAAK,CAAC;oBACR,CAAC;gBACH,CAAC;YACH,CAAC;YAED,MAAM,CAAC,MAAM,CAAC;QAChB,CAAC;QAEO,iBAAiB,CAAC,MAAc,EAAE,GAAG,IAAW;YACtD,MAAM,CAAC,IAAI,OAAO,CAAC,CAAC,OAAO,EAAE,MAAM;gBACjC,IAAI,EAAE,GAAG,IAAI,EAAE,CAAC;gBAChB,IAAI,CAAC,MAAM,CAAC,WAAW,CAAC;oBACtB,MAAM;oBACN,EAAE;oBACF,IAAI,EAAE,IAAI,CAAC,IAAI;oBACf,IAAI;iBACL,CAAC,CAAC;gBAEH,IAAI,CAAC,MAAM,CAAC,EAAE,CAAC,GAAG,CAAC,GAAG,EAAE,IAAI;oBAC1B,OAAO,IAAI,CAAC,MAAM,CAAC,EAAE,CAAC,CAAC;oBACvB,EAAE,CAAC,CAAC,GAAG,CAAC,CAAC,CAAC;wBACR,MAAM,CAAC,GAAG,CAAC,CAAC;oBACd,CAAC;oBAAC,IAAI,CAAC,CAAC;wBACN,OAAO,CAAC,IAAI,CAAC,CAAC;oBAChB,CAAC;gBACH,CAAC,CAAC;YACJ,CAAC,CAAC,CAAC;QACL,CAAC;KACF;IAED,MAAM,CAAC;QACL,MAAM,CAAC,IAAI,WAAW,EAAc,CAAC;IACvC,CAAC,CAAC;AACJ,CAAC","sourcesContent":["import { isObject } from 'lodash';\n\nimport { EventEmitter } from '../../emitter';\nimport { Database, LocalModel } from '../../types';\nimport { uuid } from '../../utils';\n\n// These are the operators nedb supports\nconst simpleOperators = {\n  $and: true,\n  $exists: true,\n  $gt: true,\n  $gte: true,\n  $in: true,\n  $lt: true,\n  $lte: true,\n  $ne: true,\n  $nin: true,\n  $not: true,\n  $or: true,\n  $regex: true,\n  $size: true,\n};\n\ninterface Callback {\n  (err?: Error, data?: any): void;\n}\n\nexport function createWebWorkerDbFactory(worker: Worker) {\n  let workerEmitter = new EventEmitter();\n\n  worker.onmessage = (event: MessageEvent) => {\n    workerEmitter.emit('message', event);\n  };\n\n  class WebWorkerDb extends Database {\n    private worker: Worker;\n    private cbMaps: {[id: string]: Callback};\n    private dbid: string;\n\n    constructor() {\n      super();\n\n      this.worker = worker;\n      this.cbMaps = {};\n      this.dbid = uuid();\n\n      workerEmitter.addListener('message', (event: MessageEvent) => {\n        let data = event.data.data;\n        let error = event.data.error;\n        let id = event.data.id;\n        let cb = this.cbMaps[id];\n\n        if (cb) {\n          cb(error, data);\n        }\n      });\n    }\n\n    public update(res: LocalModel) {\n      if (res.$deleted) {\n        return this.runWorkerFunction('remove', res.$id);\n      } else {\n        let doc = res.$toObject();\n        // Stick on the internal id\n        doc.$id = res.$id;\n        return this.runWorkerFunction('update', doc);\n      }\n    }\n\n    public query(qry: any) {\n      return this.runWorkerFunction('query', qry) as Promise<string[]>;\n    }\n\n    public qryIsSimple(qry: any): boolean {\n      let simple = true;\n\n      if (Array.isArray(qry)) {\n        qry.forEach(val => {\n          let kosher = this.qryIsSimple(val);\n          if (!kosher) {\n            simple = false;\n            return false;\n          }\n        });\n      } else if (isObject(qry)) {\n        for (let key of Object.keys(qry)) {\n          let val = qry[key];\n          // The key is fine if it doesn't begin with $ or is a simple operator\n          let kosherKey = (key[0] !== '$') || simpleOperators[key];\n\n          if (!kosherKey) {\n            simple = false;\n            break;\n          }\n\n          let valKosher = this.qryIsSimple(val);\n\n          if (!valKosher) {\n            simple = false;\n            break;\n          }\n        }\n      }\n\n      return simple;\n    }\n\n    private runWorkerFunction(fnName: string, ...args: any[]) {\n      return new Promise((resolve, reject) => {\n        let id = uuid();\n        this.worker.postMessage({\n          fnName,\n          id,\n          dbid: this.dbid,\n          args,\n        });\n\n        this.cbMaps[id] = (err, resp) => {\n          delete this.cbMaps[id];\n          if (err) {\n            reject(err);\n          } else {\n            resolve(resp);\n          }\n        };\n      });\n    }\n  }\n\n  return () => {\n    return new WebWorkerDb() as Database;\n  };\n}\n"]}