// Theme Management
class ThemeManager {
    constructor() {
        this.storageKey = 'pgadmin-theme';
        this.darkClass = 'dark';
        this.init();
    }

    init() {
        const savedTheme = localStorage.getItem(this.storageKey);
        const prefersDark = window.matchMedia('(prefers-color-scheme: dark)').matches;
        const isDark = savedTheme ? savedTheme === 'dark' : prefersDark;

        if (isDark) {
            this.setDark();
        } else {
            this.setLight();
        }

        // Listen for system theme changes
        window.matchMedia('(prefers-color-scheme: dark)').addEventListener('change', (e) => {
            if (!localStorage.getItem(this.storageKey)) {
                e.matches ? this.setDark() : this.setLight();
            }
        });
    }

    toggle() {
        const html = document.documentElement;
        if (html.classList.contains(this.darkClass)) {
            this.setLight();
        } else {
            this.setDark();
        }
    }

    setDark() {
        document.documentElement.classList.add(this.darkClass);
        localStorage.setItem(this.storageKey, 'dark');
        this.updateIcons();
    }

    setLight() {
        document.documentElement.classList.remove(this.darkClass);
        localStorage.setItem(this.storageKey, 'light');
        this.updateIcons();
    }

    isDark() {
        return document.documentElement.classList.contains(this.darkClass);
    }

    updateIcons() {
        // Update Lucide icons if needed
        if (typeof lucide !== 'undefined') {
            lucide.createIcons();
        }
    }
}

// Initialize theme manager
const themeManager = new ThemeManager();

// Theme toggle button handlers
document.addEventListener('DOMContentLoaded', () => {
    const themeButtons = [
        document.getElementById('toggleTheme'),
        document.getElementById('toggleAdminTheme')
    ];

    themeButtons.forEach(btn => {
        if (btn) {
            btn.addEventListener('click', () => themeManager.toggle());
        }
    });
});