initial import

module/system/helpers.js

@@ -0,0 +1,103 @@
+export const registerHandlebarsHelpers = function () {
+
+    Handlebars.registerHelper('isNull', function (val) {
+        return val == null;
+    });
+
+    Handlebars.registerHelper('isEmpty', function (list) {
+        if (list) return list.length == 0;
+        else return 0;
+    });
+
+    Handlebars.registerHelper('notEmpty', function (list) {
+        return list.length > 0;
+    });
+
+    Handlebars.registerHelper('isNegativeOrNull', function (val) {
+        return val <= 0;
+    });
+
+    Handlebars.registerHelper('isNegative', function (val) {
+        return val < 0;
+    });
+
+    Handlebars.registerHelper('isPositive', function (val) {
+        return val > 0;
+    });
+
+    Handlebars.registerHelper('equals', function (val1, val2) {
+        return val1 == val2;
+    });
+
+    Handlebars.registerHelper('neq', function (val1, val2) {
+        return val1 !== val2;
+    });
+
+    Handlebars.registerHelper('gt', function (val1, val2) {
+        return val1 > val2;
+    });
+
+    Handlebars.registerHelper('lt', function (val1, val2) {
+        return val1 < val2;
+    });
+
+    Handlebars.registerHelper('gte', function (val1, val2) {
+        return val1 >= val2;
+    });
+
+    Handlebars.registerHelper('lte', function (val1, val2) {
+        return val1 <= val2;
+    });
+    Handlebars.registerHelper('and', function (val1, val2) {
+        return val1 && val2;
+    });
+
+    Handlebars.registerHelper('or', function (val1, val2) {
+        return val1 || val2;
+    });
+
+    Handlebars.registerHelper('not', function (cond) {
+        return !cond;
+    });
+
+    Handlebars.registerHelper('count', function (list) {
+        return list.length;
+    });
+
+    Handlebars.registerHelper('isEnabled', function (configKey) {
+        return game.settings.get("bol", configKey);
+    });
+
+    Handlebars.registerHelper('split', function (str, separator, keep) {
+        return str.split(separator)[keep];
+    });
+
+    // If you need to add Handlebars helpers, here are a few useful examples:
+    Handlebars.registerHelper('concat', function () {
+        var outStr = '';
+        for (var arg in arguments) {
+            if (typeof arguments[arg] != 'object') {
+                outStr += arguments[arg];
+            }
+        }
+        return outStr;
+    });
+
+    Handlebars.registerHelper('add', function (a, b) {
+        return parseInt(a) + parseInt(b);
+    });
+
+    Handlebars.registerHelper('valueAtIndex', function (arr, idx) {
+        return arr[idx];
+    });
+
+    Handlebars.registerHelper('includesKey', function (items, type, key) {
+        // console.log(items);
+        return items.filter(i => i.type === type).map(i => i.data.key).includes(key);
+    });
+
+    Handlebars.registerHelper('includes', function (array, val) {
+        return array.includes(val);
+    });
+
+}