add sauce

js/noaarpts.js

@@ -0,0 +1,142 @@
+/*	----------------------------------------------------------
+ *  noaarpts.js
+ *  Last modified: 2021/07/10 13:19:42
+ *  Populates the dropdown menus using the records began date
+ *
+ * 	Requires jQuery
+ * 	----------------------------------------------------------*/
+
+let rptPath = 'data/reports/';  // Your path should have a trailing "/", eg. 'Reports/'
+let startYear, endYear;
+let startMonth, endMonth;
+let rptAvail = {};
+
+if (rptPath.length && rptPath.slice(-1) !== '/')
+    rptPath += '/';
+
+$(document).ready(function () {
+    dataLoadedPromise.then(function () {
+        startYear = cmx_data.recordsbegandateISO.split('-')[0] * 1;
+        startMonth = cmx_data.recordsbegandateISO.split('-')[1] * 1;
+        endYear = cmx_data.metdateyesterdayISO.split('-')[0] * 1;
+        endMonth = cmx_data.metdateyesterdayISO.split('-')[1] * 1;
+
+        // This does the initial disable of out of range months this year
+        rptAvail[endYear] = [];
+        for (let m = 1; m < 13; m++) {
+            // greater than end month
+            rptAvail[endYear][m] = m <= endMonth;
+            // if start year is this year, then less start month
+            if (startYear == endYear) {
+                rptAvail[endYear][m] = rptAvail[endYear][m] && m >= startMonth
+            }
+            $('#opt-' + m).prop('hidden', !rptAvail[endYear][m]);
+        }
+
+        // get the current year report and display it whilst we sort out the rest in background
+        getYearRpt(endYear);
+
+        // add the year select dropdown values, most recent first
+        for (let y = endYear; y >= startYear; y--) {
+            let option = $('<option />');
+            option.html(y);
+            option.val(y);
+
+            $('#year').append(option);
+
+            rptAvail[y] = [];
+
+            // The start and end years may be short, so no point in checking months that are out of range
+            let monSt, monEnd;
+            if (y == startYear || y == endYear) {
+                monSt = y == startYear ? startMonth : 1;
+                monEnd = y == endYear ? endMonth : 12;
+            } else {
+                monSt = 1;
+                monEnd = 12;
+            }
+
+            // we need to process every month though, so we can disbale those out of range as well as MIA
+            for (let m = 1; m <= 12; m++) {
+                // assume this month isn't available
+                rptAvail[y][m] = false;
+
+                if (m >= monSt && m <= monEnd) {
+                    // assume it's there, then we only have to check for failure
+                    rptAvail[y][m] = true;
+                    // checking...
+                    $.ajax({
+                        url: rptPath + 'NOAAMO' + pad2(m) + pad2(y - 2000) + '.txt',
+                        type: 'HEAD',
+                        error: function () {
+                            rptAvail[y][m] = false;
+                            // if we are in the year currently being displayed...
+                            if (y == $('#year').val()) {
+                                // ...disable of any months that should be available but aren't
+                                $('#opt-' + m).prop('hidden', true);
+                            }
+                        }
+                    });
+                }
+            }
+        }
+    });
+});
+
+// pad two digit numbers with a leading zero
+let pad2 = function (num) {
+    return (num < 10 ? '0' : '') + num;
+}
+
+// Script assumes that reports use the default name format
+let getMonRpt = function (month) {
+    let yr = $('#year').val();
+
+    // Is annual selected? If so, show the yearly report
+    if (month === '0') {
+        getYearRpt(yr);
+        return;
+    }
+
+    reqRpt = rptPath + 'NOAAMO' + pad2(month) + pad2(yr - 2000) + '.txt';
+
+    $.ajax({
+        url: reqRpt,
+        dataType: 'text',
+        success: function (data) {
+            $('#noaareport').text(data);
+        },
+        error: function () {
+            alert('Did not find the required report\n\nPlease try another date');
+        }
+    });
+};
+
+// Script assumes that reports use the default name format
+let getYearRpt = function (yr) {
+    let reqRpt = rptPath + 'NOAAYR' + yr + '.txt';
+
+    // set the month buttons for the new year
+    for (let m = 1; m < 13; m++) {
+        $('#opt-' + m).prop('hidden', !rptAvail[yr][m]);
+    }
+
+    // Do we have a month selected? If so show the month report for the new year
+    let mon = $('#month').val();
+    if (mon != '0') {
+        getMonRpt(mon);
+        return;
+    }
+
+    // get the report text
+    $.ajax({
+        url: reqRpt,
+        dataType: 'text',
+        success: function (data) {
+            $('#noaareport').text(data);
+        },
+        error: function () {
+            alert('Did not find the required report\n\nPlease try another date');
+        }
+    });
+};