82 lines
2.0 KiB
JavaScript
82 lines
2.0 KiB
JavaScript
const fs = require("fs");
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const path = require("path");
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const repoRoot = path.resolve(__dirname, "..", "..");
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const mealsPath = path.join(repoRoot, "data", "meals.json");
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function validateThumbnail(meal, index) {
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if (meal.thumbnail === undefined) {
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return;
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}
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if (
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!meal.thumbnail ||
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typeof meal.thumbnail !== "object" ||
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Array.isArray(meal.thumbnail)
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) {
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throw new Error(`Meal ${index} has an invalid "thumbnail" object`);
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}
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if (meal.thumbnail.focus === undefined) {
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return;
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}
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const { focus } = meal.thumbnail;
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if (!focus || typeof focus !== "object" || Array.isArray(focus)) {
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throw new Error(`Meal ${index} has an invalid "thumbnail.focus" object`);
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}
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for (const axis of ["x", "y"]) {
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if (typeof focus[axis] !== "number" || !Number.isFinite(focus[axis])) {
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throw new Error(
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`Meal ${index} has a non-numeric thumbnail focus value for "${axis}"`
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);
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}
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if (focus[axis] < 0 || focus[axis] > 1) {
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throw new Error(
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`Meal ${index} thumbnail focus "${axis}" must be between 0 and 1`
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);
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}
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}
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}
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function validateMeals(meals) {
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if (!Array.isArray(meals)) {
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throw new Error("data/meals.json must contain an array");
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}
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for (const [index, meal] of meals.entries()) {
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if (!meal || typeof meal !== "object") {
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throw new Error(`Meal at index ${index} must be an object`);
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}
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for (const field of ["id", "title", "description"]) {
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if (typeof meal[field] !== "string" || meal[field].length === 0) {
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throw new Error(`Meal ${index} is missing required string field "${field}"`);
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}
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}
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if (meal.position !== undefined && typeof meal.position !== "string") {
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throw new Error(`Meal ${index} has a non-string "position" value`);
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}
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validateThumbnail(meal, index);
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}
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}
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function loadMeals() {
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const meals = JSON.parse(fs.readFileSync(mealsPath, "utf8"));
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validateMeals(meals);
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return meals;
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}
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module.exports = {
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loadMeals,
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mealsPath,
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repoRoot,
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};
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