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"use strict";
Object.defineProperty(exports, "__esModule", {
value: true
});
exports.default = function (calc, node, precision) {
var str = stringify(node, precision);
if (node.type === "MathExpression") {
// if calc expression couldn't be resolved to a single value, re-wrap it as
// a calc()
str = calc + "(" + str + ")";
}
return str;
};
var _reducer = require("./reducer");
var order = {
"*": 0,
"/": 0,
"+": 1,
"-": 1
};
function round(value, prec) {
if (prec !== false) {
var precision = Math.pow(10, prec);
return Math.round(value * precision) / precision;
}
return value;
}
function stringify(node, prec) {
switch (node.type) {
case "MathExpression":
{
var left = node.left,
right = node.right,
op = node.operator;
var str = "";
if (left.type === 'MathExpression' && order[op] < order[left.operator]) str += "(" + stringify(left, prec) + ")";else str += stringify(left, prec);
str += " " + node.operator + " ";
if (right.type === 'MathExpression' && order[op] < order[right.operator]) {
str += "(" + stringify(right, prec) + ")";
} else if (right.type === 'MathExpression' && op === "-" && ["+", "-"].includes(right.operator)) {
// fix #52 : a-(b+c) = a-b-c
right.operator = (0, _reducer.flip)(right.operator);
str += stringify(right, prec);
} else {
str += stringify(right, prec);
}
return str;
}
case "Value":
return round(node.value, prec);
case 'CssVariable':
if (node.fallback) {
return "var(" + node.value + ", " + stringify(node.fallback, prec, true) + ")";
}
return "var(" + node.value + ")";
case 'Calc':
if (node.prefix) {
return "-" + node.prefix + "-calc(" + stringify(node.value, prec) + ")";
}
return "calc(" + stringify(node.value, prec) + ")";
default:
return round(node.value, prec) + node.unit;
}
}
module.exports = exports["default"];
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