Fis-Microservice/libs/utils/log.utils.ts

import fs from "fs";
import "source-map-support/register";
// const chalk = require('chalk');
import chalk from 'chalk'

// const logColors: Record<string, (text: string) => string> = {
//     base: chalk.bgRgb(69, 64, 74),
//     managers: chalk.bgRgb(128, 20, 217),
//     transmission: chalk.bgRgb(0, 106, 255),
//     adapter: chalk.bgRgb(51, 130, 68),
//     transport: chalk.bgRgb(173, 9, 0),
//     error: chalk.rgb(212, 32, 0),
//     util: chalk.rgb(200, 204, 177),
//     details: chalk.rgb(255, 255, 97),
//     location: chalk.rgb(241, 112, 255),
//     retransmission: chalk.bgRgb(186, 87, 0)
// };

function applyColor(rgb: [number, number, number], isBackground: boolean = false) {
    const [r, g, b] = rgb;
    return isBackground ? chalk.bgRgb(r, g, b) : chalk.rgb(r, g, b);
}

const logColors: Record<string, [number, number, number]> = {
    base: [69, 64, 74],
    managers: [128, 20, 217],
    transmission: [0, 106, 255],
    adapter: [51, 130, 68],
    transport: [173, 9, 0],
    error: [212, 32, 0],
    util: [200, 204, 177],
    details: [255, 255, 97],
    retransmission: [186, 87, 0],
};


class ConsoleLogger {
    private categoryPath: string[] = []
    private settings: Record<string, any>;
    private className!: string
    constructor(className: string, categoryPath: string[]) {
        this.className = className
        let configPath = "./logSetting.json"
        this.settings = this.loadSettings(configPath);
        this.categoryPath = categoryPath
    }

    private loadSettings(configPath: string): Record<string, any> {
        try {
            const config = fs.readFileSync(configPath, "utf-8");
            return JSON.parse(config);
        } catch (error) {
            console.error("Failed to load log settings:", error);
            return {};
        }
    }

    private isCategoryEnabled(categoryPath: string[]): boolean {
        let currentLevel = this.settings;

        for (const part of categoryPath) {
            if (currentLevel[part] === undefined) {
                return false; // Category or subcategory does not exist
            }
            if (typeof currentLevel[part] === "boolean") {
                return currentLevel[part];
            }
            currentLevel = currentLevel[part];
        }

        return false;
    }

    log(message: { message: string, details?: any }): void {
        if (!this.isCategoryEnabled(this.categoryPath)) {
            return; // Skip logging if the category is disabled
        }

        const category = this.categoryPath.join(" -> ").toUpperCase();
        const location = this.getLogLocation();

        const primaryCategory = this.categoryPath[0];
        const rgb = logColors[primaryCategory] || [255, 255, 255]; // Default to white
        const categoryStyle = applyColor(rgb, true); // Use bgRgb for category
        const locationStyle = applyColor(rgb); // Use rgb for location

        const formattedCategory = categoryStyle(`[${category}]`);
        const formattedClassName = categoryStyle(`${this.className}`);
        const formattedLocation = locationStyle(` ${location}`);

        const formattedMessage = `${formattedClassName}${formattedLocation}: ${message.message}`;
        console.log(formattedMessage, message.details ? applyColor([255, 255, 97])(message.details) : '');

        if (message.details && this.isCategoryEnabled(["details"])) {
            console.log(applyColor([255, 255, 97])('Details: '), message.details);
        }
    }



    error(message: { message: string, details?: any }): void {
        if (!this.isCategoryEnabled(this.categoryPath)) {
            return; // Skip logging if the category is disabled
        }

        const category = this.categoryPath.join(" -> ").toUpperCase();
        const location = this.getLogLocation();

        const primaryCategory = this.categoryPath[0];
        const rgb = logColors[primaryCategory] || [255, 255, 255]; // Default to white
        const categoryStyle = applyColor(rgb, true); // Use bgRgb for category
        const locationStyle = applyColor(rgb); // Use rgb for location
        const messageStyle = applyColor([224, 0, 0])
        const formattedCategory = categoryStyle(`[${category}]`);
        const formattedClassName = categoryStyle(`${this.className}`);
        const formattedLocation = locationStyle(`${location}`);
        const formattedErrorMessage = messageStyle(`${message.message}`)

        const formattedMessage = `${formattedClassName} ${formattedLocation}: ${formattedErrorMessage}`;
        console.log(formattedMessage, message.details ? applyColor([224, 0, 0])(message.details) : '');

        if (message.details && this.isCategoryEnabled(["details"])) {
            console.log(applyColor([224, 0, 0])('Details: '), message.details);
        }
    }



    reloadSettings(configPath: string): void {
        this.settings = this.loadSettings(configPath);
    }

    private getLogLocation(): string {
        if (!this.isCategoryEnabled(["location"])) {
            return ""; // Don't display location if the category is disabled
        }

        const error = new Error();
        // Captures the current stack trace
        Error.captureStackTrace(error, this.getLogLocation);

        const stack = error.stack?.split("\n") || [];
        const callerLine = stack[2]; // Adjust index to get the correct caller line (this may vary based on environment)

        // Extract only line and column numbers using regex
        const match = callerLine?.match(/:(\d+):(\d+)\)/);
        if (match) {
            const [, line, column] = match;
            // return `line ${line}, column ${column}`;
            return `at line ${line}`;
        }

        return "at unknown location";
    }
}

export default ConsoleLogger;