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"use strict";
const { ipcRenderer } = require('electron');
const $ = require("jquery");
const cm = require("codemirror");
require("datatables")(window, $);
require("codemirror/mode/sql/sql");
const Split = require("split.js");
const editorContext = cm(document.getElementById("editor"), {
value: "select *\nfrom information_schema.tables",
mode: "text/x-sql",
theme: "dracula",
lineNumbers: true
});
let dataTable;
let execStartTime;
let execTimerInterval;
let execElapsedTime;
function runQuery() {
_setExecutionStatusIndicator("RUNNING");
_startExecTimer();
var query = editorContext.getValue();
console.log(query);
_destroyDataTable();
ipcRenderer.send("queryExecutor.runQuery", query);
}
ipcRenderer.on("queryExecutor.runQueryComplete", (event, response) => {
_stopExecTimer();
if(response.error === undefined) {
handleResult(response.result);
}
else {
handleError(response.error);
}
});
function _startExecTimer() {
execStartTime = new Date;
execElapsedTime = 0;
execTimerInterval = setInterval(function () {
execElapsedTime = Date.now() - execStartTime;
$("#execution-time").text("exec time: " + execElapsedTime + "ms");
}, 10);
}
function _stopExecTimer() {
clearInterval(execTimerInterval);
execStartTime = null;
}
function handleError(err) {
_stopExecTimer();
_destroyDataTable();
$("#result-error").text("Error (" + err.code + ") - " + err.message);
_setExecutionStatusIndicator("ERROR");
$("#execution-time").text("failed after " + execElapsedTime + " ms");
}
function handleResult(results) {
_stopExecTimer();
$("#result-error").empty();
_destroyDataTable();
dataTable = _resultTable().DataTable({
paging: false,
order: [],
dom: "tr",
data: results.rows,
columns: _mapColumnProperties(results)
});
_setExecutionStatusIndicator("OK");
$("#execution-time").text("returned " + results.rowCount + " rows in " + execElapsedTime + " ms");
}
function _mapColumnProperties(results) {
return results.fields.map(function (column) {
return {
"data": column.name,
"title": column.name
};
});
}
function _resultTable() {
return $("#result-table");
}
function _setExecutionStatusIndicator(status) {
switch(status) {
case "RUNNING":
$("#execution-status").removeClass().addClass("exec-running").text("Running");
break;
case "OK":
$("#execution-status").removeClass().addClass("exec-ok").text("Ok");
break;
case "ERROR":
$("#execution-status").removeClass().addClass("exec-error").text("Error");
break;
}
}
function _destroyDataTable() {
if (dataTable) {
dataTable.destroy();
_resultTable().empty();
dataTable = undefined;
}
}
function _onKeyUp(event) {
if (event.ctrlKey && event.keyCode == 13) {
runQuery();
}
}
$(document).ready(function () {
// Event handlers
$("#run-query").click(runQuery);
$(document).keyup(_onKeyUp);
Split([".editor-row", ".results-row"], {
sizes: [50, 50],
direction: "vertical",
gutterSize: 10,
elementStyle: function (dimension, size, gutterSize) {
return {
"flex-basis": "calc(" + size + "% - " + gutterSize + "px"
}
},
gutterStyle: function (dimension, gutterSize) {
return {
"flex-basis": gutterSize + "px"
}
}
});
})
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