MediaWiki:Gadget-personaldata.js

From Wikibase Personal data
Revision as of 22:25, 18 May 2019 by Abel (talk | contribs)
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// License: GPL
// Indexeddb JavaScript 
console.log('Indb loading');

function idxdbContainer( ww	) {
	
	hashCode = function(s) {
		if ( s == undefined) {
			s = '00'
		}
		var h = 0, l = s.length, i = 0;
		if ( l > 0 )
			while (i < l)
				h = (h << 5) - h + s.charCodeAt(i++) | 0;
			return h;
		};
		
		if ( ww.user != undefined ) {
			var self = ww.user.getName();
			
			var idgen = hashCode(self);																										

			console.log(idgen);
			// Take username for standard databasename format
			var PersonalDataDataBaseName = "PD.IO" + idgen + "Database";
			// Use username in user to get up to date version of self
			var CurrentPerson = {id: idgen, name: {user: self}, age: 0};
			
			console.log(PersonalDataDataBaseName);
			console.log(CurrentPerson);
		}

	// ADD MORE DOC

	// EnqueuePDIO a PDIOLocalDatabase:User database access function with modes
	// External accessible wrapper for Enquire
	
	this.EnqueuePDIO = function( sw, c1, c2, c3 ) {
		var k = await Enquire( PersonalDataDataBaseName, CurrentPerson, sw, c1, c2, c3 );
		
		return k;
	}

	// Enquire, a general purpose indexeddb update function with modes

	// Mode 'aggressive push':
	// parameter record is pushed to database, overwriting whatever is there

	// Mode 'checkin':
	// record is retrieved from database, parameter record is pushed if not found

	// Mode 'get record'
	// tries to get record from db, returns undefined if not found

	// Mode 'update record' field1 field2 field3
	// retrieve record, make record.field1.field2 = field3, push back

	// Mode 'update record' field1 field2
	// retrieve record, make record.field1 = field2, push back

	function Enquire( pddbname, record, sqitch, control_1, control_2, control_3 ) {
		return new Promise(
			function(resolve, reject) {

				var pddb = window.indexedDB.open(pddbname, 3);
				var inp_obj;
				pddb.onupgradeneeded = function() {
					var db = pddb.result;
					var store = db.createObjectStore(pddbname, {keyPath: "id"});

						// shouldn't the index be the wiki.personaldata.io username? 

						var index = store.createIndex("NameIndex", ["id"]);
				};
				pddb.onsuccess = function() {
					var db = pddb.result;
					var tx = db.transaction(pddbname, "readwrite");
					var store = tx.objectStore(pddbname);
					var index = store.index("NameIndex");	

					// Get the original record from the db...
					var getRecord = index.get([record.id]);

					getRecord.onsuccess = function() {
						console.log( "Record found in database: \n <<");
						console.log( getRecord.result );
						console.log( ">>");

						// Essential recordAdd																													
						if ( sqitch === "aggressive push" ) {
							inp_obj = record;
							store.put( inp_obj );
							return inp_obj;
						} else if ( sqitch === "checkin" ) {
							
							if ( getRecord.result != undefined ) {
								console.log("getting from store");
								inp_obj = getRecord.result;
							} else {
								console.log("overriding whatever in there");
								inp_obj = record;
								store.put(inp_obj);
							}

						} else {
							if ( getRecord.result != undefined ) {		
								inp_obj = getRecord.result;
								if ( sqitch === "get record" ) {
									// if found, let's use that from now on
									console.log("Getting record");
									// let's return it so that our addrecord can be used as a getter as well
									return inp_obj;
								} 
									//
								// endof onsuccess
							} else {
								console.log("record not found");
								if ( sqitch === "update record" ) {
									inp_obj = record;
								} else {
									return undefined;
								}
							}
									// endof resultdefined	
						} 
								// endofELSE 
						if ( sqitch === "update record" ) { // Record Update															
							if ( control_1 != undefined ) {
								if ( control_2 != undefined ) {
									if ( control_3 != undefined ) {
										
										if ( Array.isArray( inp_obj[ control_1 ][ control_2 ] ) ) {
											inp_obj[ control_1 ][ control_2 ].push( control_3 );											
										} else {
											inp_obj[ control_1 ][ control_2 ] = control_3;	// => "Bob"
										}
										store.put(inp_obj);
									} else {
										
										if ( Array.isArray( inp_obj[ control_1 ] ) ) {
											inp_obj[ control_1 ].push( control_2 );
										} else {
											inp_obj[ control_1 ] = control_2;
										}
										store.put(inp_obj);

									}
									// +3 
								} else {
									store.put(inp_obj);
									console.log("mark N");
									console.log(inp_obj);
									console.log(inp_obj[ control_1 ]);
									console.log("mark NN")
									inp_obj = inp_obj[ control_1 ];
								}
									// +2
							} else {

								//return inp_obj;

							}
							console.log("return 3")
							// return inp_obj;

						};
						console.log("return 2")
						resolve( inp_obj );

					};

					tx.oncomplete = function() {
						console.log("return 1")
						db.close();
					};
				};
				console.log("return 0")
			});
	}
};