import fs from "fs/promises";

export async function readJsonFile(filePath, fallback = []) {
    try {
        const content = await fs.readFile(filePath, "utf-8");
        const parsed = JSON.parse(content);
        return parsed ?? fallback;
    } catch (error) {
        if (error.code === "ENOENT") {
            await fs.writeFile(filePath, JSON.stringify(fallback, null, 2));
            return fallback;
        }
        throw error;
    }
}

export async function writeJsonFile(filePath, data) {
    await fs.writeFile(filePath, JSON.stringify(data, null, 2));
}