added fonts

node_modules/@next/font/dist/local/pick-font-file-for-fallback-generation.js

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+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.pickFontFileForFallbackGeneration = void 0;
+const next_font_error_1 = require("../next-font-error");
+const NORMAL_WEIGHT = 400;
+const BOLD_WEIGHT = 700;
+/**
+ * Convert the weight string to a number so it can be used for comparison.
+ * Weights can be defined as a number, 'normal' or 'bold'. https://developer.mozilla.org/docs/Web/CSS/@font-face/font-weight
+ */
+function getWeightNumber(weight) {
+    return weight === 'normal'
+        ? NORMAL_WEIGHT
+        : weight === 'bold'
+            ? BOLD_WEIGHT
+            : Number(weight);
+}
+/**
+ * Get the distance from normal (400) weight for the provided weight.
+ * If it's not a variable font we can just return the distance.
+ * If it's a variable font we need to compare its weight range to 400.
+ */
+function getDistanceFromNormalWeight(weight) {
+    if (!weight)
+        return 0;
+    // If it's a variable font the weight is defined with two numbers "100 900", rather than just one "400"
+    const [firstWeight, secondWeight] = weight
+        .trim()
+        .split(/ +/)
+        .map(getWeightNumber);
+    if (Number.isNaN(firstWeight) || Number.isNaN(secondWeight)) {
+        (0, next_font_error_1.nextFontError)(`Invalid weight value in src array: \`${weight}\`.\nExpected \`normal\`, \`bold\` or a number.`);
+    }
+    // If the weight doesn't have have a second value, it's not a variable font
+    // If that's the case, just return the distance from normal weight
+    if (!secondWeight) {
+        return firstWeight - NORMAL_WEIGHT;
+    }
+    // Normal weight is within variable font range
+    if (firstWeight <= NORMAL_WEIGHT && secondWeight >= NORMAL_WEIGHT) {
+        return 0;
+    }
+    // Normal weight is outside variable font range
+    // Return the distance of normal weight to the variable font range
+    const firstWeightDistance = firstWeight - NORMAL_WEIGHT;
+    const secondWeightDistance = secondWeight - NORMAL_WEIGHT;
+    if (Math.abs(firstWeightDistance) < Math.abs(secondWeightDistance)) {
+        return firstWeightDistance;
+    }
+    return secondWeightDistance;
+}
+/**
+ * If multiple font files are provided for a font family, we need to pick one to use for the automatic fallback generation.
+ * This function returns the font file that is most likely to be used for the bulk of the text on a page.
+ *
+ * There are some assumptions here about the text on a page when picking the font file:
+ * - Most of the text will have normal weight, use the one closest to 400
+ * - Most of the text will have normal style, prefer normal over italic
+ * - If two font files have the same distance from normal weight, the thinner one will most likely be the bulk of the text
+ */
+function pickFontFileForFallbackGeneration(fontFiles) {
+    return fontFiles.reduce((usedFontFile, currentFontFile) => {
+        if (!usedFontFile)
+            return currentFontFile;
+        const usedFontDistance = getDistanceFromNormalWeight(usedFontFile.weight);
+        const currentFontDistance = getDistanceFromNormalWeight(currentFontFile.weight);
+        // Prefer normal style if they have the same weight
+        if (usedFontDistance === currentFontDistance &&
+            (typeof currentFontFile.style === 'undefined' ||
+                currentFontFile.style === 'normal')) {
+            return currentFontFile;
+        }
+        const absUsedDistance = Math.abs(usedFontDistance);
+        const absCurrentDistance = Math.abs(currentFontDistance);
+        // Use closest absolute distance to normal weight
+        if (absCurrentDistance < absUsedDistance)
+            return currentFontFile;
+        // Prefer the thinner font if both have the same absolute distance from normal weight
+        if (absUsedDistance === absCurrentDistance &&
+            currentFontDistance < usedFontDistance) {
+            return currentFontFile;
+        }
+        return usedFontFile;
+    });
+}
+exports.pickFontFileForFallbackGeneration = pickFontFileForFallbackGeneration;