const util = require('util');
const config = require('../config');

// ANSI 颜色代码
const colors = {
    reset: "\x1b[0m",
    bright: "\x1b[1m",
    dim: "\x1b[2m",
    underscore: "\x1b[4m",
    blink: "\x1b[5m",
    reverse: "\x1b[7m",
    hidden: "\x1b[8m",

    fg: {
        black: "\x1b[30m",
        red: "\x1b[31m",
        green: "\x1b[32m",
        yellow: "\x1b[33m",
        blue: "\x1b[34m",
        magenta: "\x1b[35m",
        cyan: "\x1b[36m",
        white: "\x1b[37m",
        gray: "\x1b[90m",
    },
    bg: {
        black: "\x1b[40m",
        red: "\x1b[41m",
        green: "\x1b[42m",
        yellow: "\x1b[43m",
        blue: "\x1b[44m",
        magenta: "\x1b[45m",
        cyan: "\x1b[46m",
        white: "\x1b[47m",
    }
};

function formatTime() {
    const now = new Date();
    const timeStr = now.toLocaleTimeString('zh-CN', { hour12: false });
    const ms = String(now.getMilliseconds()).padStart(3, '0');
    return `${timeStr}.${ms}`;
}

const logger = {
    // 普通信息 - 青色标签
    info: (category, message, ...args) => {
        if (!config.enableLog) return;
        const time = `${colors.fg.gray}[${formatTime()}]${colors.reset}`;
        const tag = `${colors.fg.cyan}[${category}]${colors.reset}`;
        console.log(`${time} ${tag} ${message}`, ...args);
    },
    
    // 成功信息 - 绿色标签
    success: (category, message, ...args) => {
        if (!config.enableLog) return;
        const time = `${colors.fg.gray}[${formatTime()}]${colors.reset}`;
        const tag = `${colors.fg.green}[${category}]${colors.reset}`;
        console.log(`${time} ${tag} ${message}`, ...args);
    },

    // 警告信息 - 黄色标签
    warn: (category, message, ...args) => {
        if (!config.enableLog) return;
        const time = `${colors.fg.gray}[${formatTime()}]${colors.reset}`;
        const tag = `${colors.fg.yellow}[${category}]${colors.reset}`;
        console.warn(`${time} ${tag} ${message}`, ...args);
    },

    // 错误信息 - 红色标签
    error: (category, message, ...args) => {
        if (!config.enableLog) return;
        const time = `${colors.fg.gray}[${formatTime()}]${colors.reset}`;
        const tag = `${colors.fg.red}[${category}]${colors.reset}`;
        console.error(`${time} ${tag} ${message}`, ...args);
    },

    // 调试信息 - 洋红色标签 (对象会自动展开)
    debug: (category, message, ...args) => {
        if (!config.enableLog) return;
        const time = `${colors.fg.gray}[${formatTime()}]${colors.reset}`;
        const tag = `${colors.fg.magenta}[${category}]${colors.reset}`;
        // 使用 util.inspect 格式化对象，使其带有颜色且深度无限
        const formattedArgs = args.map(arg => 
            (typeof arg === 'object' && arg !== null) 
                ? '\n' + util.inspect(arg, { colors: true, depth: null, breakLength: 80 }) 
                : arg
        );
        console.log(`${time} ${tag} ${message}`, ...formattedArgs);
    },
    
    // 分割线 - 用于区分请求
    divider: (title) => {
        if (!config.enableLog) return;
        console.log(`${colors.fg.gray}----------------------------------------------------------------${colors.reset}`);
        if (title) {
             console.log(`${colors.fg.white}${colors.bright}👉 ${title}${colors.reset}`);
        }
    }
};

module.exports = logger;