fipamo/brain/utils/tools/DBUtils.js
2019-11-10 12:23:32 -08:00

179 lines
3.5 KiB
JavaScript

'use strict';
import DataUtils, { REQUEST_TYPE_POST, CONTENT_TYPE_JSON } from '../utilities/DataUtils';
import Dexie from 'dexie';
import * as DataEvent from '../events/DataEvent';
export var COUNT;
export var FINAL_KEY;
export default class DBUtils {
//--------------------------
// constructor
//--------------------------
constructor() {
/**
* NOTE: DB ERRORS REPLICATE.
* WHEN FIXING A BUG, FIX DATA WITH JSON BACKUP
*/
this.dataUtils = new DataUtils();
this.db = new Dexie('fipamo_posts');
this.db.version(1).stores({
postList: 'id,post'
});
this.db.postList.toArray(array => {
COUNT = array.length;
FINAL_KEY = 0;
if (COUNT != 0) FINAL_KEY = array[COUNT - 1].id;
});
}
//--------------------------
// methods
//--------------------------
modify(id, postData) {
let self = this;
let freshID;
return new Promise(function(resolve, reject) {
if (id == null) {
self.db.postList
.put(postData)
.then(fresh => {
freshID = fresh;
})
.catch(e => {
let err = {
message: 'PUT ERROR',
error: e
};
return err;
});
} else {
//console.log("UPDATED", postData);
self.db.postList
.update(Number(id), {
post: postData
})
.then(() => {})
.catch(e => {
let err = {
message: 'UPDATE ERROR',
error: e
};
return err;
});
}
self.db.postList.toArray(array => {
self.syncRemote(array, freshID)
.then(response => {
resolve({
response
});
})
.catch(err => {
reject({
err
});
});
});
});
}
syncLocal(array) {
let self = this;
return new Promise(function(resolve, reject) {
self.db.postList.clear().then(() => {
self.db.postList
.bulkAdd(array)
.then(() => {
self.db.postList.toArray(() => {
let event = DataEvent.LOCAL_DB_READY;
resolve({
event
});
});
})
.catch(Dexie.BulkError, e => {
reject({
e
});
});
});
});
}
syncRemote(db, newPostId) {
let self = this;
return new Promise(function(resolve, reject) {
self.dataUtils
.request(
'/api/post/sync',
DataEvent.POSTS_SYNCED,
REQUEST_TYPE_POST,
CONTENT_TYPE_JSON,
db
)
.then(response => {
let bounce = {
message: response,
newPost: newPostId
};
resolve(bounce);
})
.catch(err => {
reject(err);
});
});
}
getPost(id) {
let self = this;
if (id == null) {
return new Promise(function(resolve, reject) {
self.db.postList
.toArray(array => {
resolve(array);
})
.catch(err => {
reject(err);
});
});
} else {
return new Promise(function(resolve, reject) {
self.db.postList
.get(Number(id))
.then(obj => {
resolve(obj);
})
.catch(err => {
reject(err);
});
});
}
}
archivePost(id, archive) {
let self = this;
return new Promise(function(resolve, reject) {
self.db.postList
.update(Number(id), {
post: archive
})
.then(() => {
self.db.postList.toArray(array => {
self.syncRemote(array, null)
.then(response => {
resolve({
response
});
})
.catch(err => {
reject({
err
});
});
});
})
.catch(() => {
//console.log('ERROR', e);
});
});
}
//--------------------------
// event handlers
//--------------------------
}