import fs from "fs/promises";
import path from "path";

export const dateFormatter = (date: string | undefined) => {
    const formattedDate = useTimeAgo(date!);
    return formattedDate.value;
};

export const byteFormatter = (bytes: number, decimals = 2) => {
    if (!+bytes) return "0 B";

    const k = 1024;
    const dm = decimals < 0 ? 0 : decimals;
    const sizes = ["B", "Kb", "Mb", "Gb", "Tb", "Pb", "Eb", "Zb", "Yb"];

    const i = Math.floor(Math.log(bytes) / Math.log(k));

    return `${parseFloat((bytes / Math.pow(k, i)).toFixed(dm))} ${sizes[i]}`;
};

export const formatAgent = (userAgent: any) => {
    if (userAgent) {
        let os = "";
        let browser = "";
        let browserVersion = "";
        let deviceType = "";

        // Check for the OS
        if (userAgent.includes("Windows NT")) {
            os = "Windows";
        } else if (userAgent.includes("Mac OS X")) {
            os = "Mac";
        } else if (userAgent.includes("Linux")) {
            os = "Linux";
        } else if (userAgent.includes("Android")) {
            os = "Android";
        } else if (userAgent.includes("iPhone") || userAgent.includes("iPad")) {
            os = "iOS";
        }

        // Check for browser and version
        if (userAgent.includes("Chrome")) {
            browser = "Chrome";
            browserVersion = userAgent.match(/Chrome\/([\d.]+)/)[1];
        } else if (userAgent.includes("Firefox")) {
            browser = "Firefox";
            browserVersion = userAgent.match(/Firefox\/([\d.]+)/)[1];
        } else if (userAgent.includes("Safari") && !userAgent.includes("Chrome")) {
            browser = "Safari";
            browserVersion = userAgent.match(/Version\/([\d.]+)/)[1];
        } else if (userAgent.includes("Edge")) {
            browser = "Edge";
            browserVersion = userAgent.match(/Edge\/([\d.]+)/)[1];
        }

        // Check for device type
        if (userAgent.includes("Mobi")) {
            deviceType = "Mobile";
        } else if (userAgent.includes("Tablet")) {
            deviceType = "Tablet";
        } else {
            deviceType = "Desktop";
        }

        return {
            os: os,
            browser: browser,
            browserVersion: browserVersion,
            deviceType: deviceType,
        };
    }

    return undefined;
};

export const isImage = (name: string | undefined) => {
    if (name) {
        const types = [".jpg", ".jpeg", ".png", ".svg", ".webp"];
        return types.some((type) => name.toLowerCase().endsWith(type));
    }
    return false;
};

// Ensure Exist

export const ensureFileExists = async (filePath: string, initialContent = "") => {
    try {
        await fs.access(filePath);
    } catch (error) {
        const err = error as any;
        if (err.code === "ENOENT") {
            await fs.mkdir(path.dirname(filePath), { recursive: true });
            await fs.writeFile(filePath, initialContent, "utf-8");
        } else {
            throw err;
        }
    }
};