/**
 * main.js - Global JavaScript functionality
 *
 * This file contains general JavaScript functionality used across
 * the entire application, including navigation, forms, and UI interactions.
 */

document.addEventListener("DOMContentLoaded", function () {
    // Initialize tooltips
    var tooltipTriggerList = [].slice.call(document.querySelectorAll('[data-bs-toggle="tooltip"]'));
    var tooltipList = tooltipTriggerList.map(function (tooltipTriggerEl) {
        return new bootstrap.Tooltip(tooltipTriggerEl);
    });

    // Initialize popovers
    var popoverTriggerList = [].slice.call(document.querySelectorAll('[data-bs-toggle="popover"]'));
    var popoverList = popoverTriggerList.map(function (popoverTriggerEl) {
        return new bootstrap.Popover(popoverTriggerEl);
    });

    // Toggle sidebar on mobile
    const sidebarToggle = document.querySelector("#sidebarToggle");
    if (sidebarToggle) {
        sidebarToggle.addEventListener("click", function () {
            document.querySelector(".sidebar").classList.toggle("show");
        });
    }

    // Auto-dismiss alerts after 5 seconds
    setTimeout(function () {
        var alerts = document.querySelectorAll(".alert:not(.alert-important)");
        alerts.forEach(function (alert) {
            if (alert && bootstrap.Alert.getInstance(alert)) {
                bootstrap.Alert.getInstance(alert).close();
            }
        });
    }, 5000);

    // Form validation
    const forms = document.querySelectorAll(".needs-validation");
    forms.forEach(function (form) {
        form.addEventListener(
            "submit",
            function (event) {
                if (!form.checkValidity()) {
                    event.preventDefault();
                    event.stopPropagation();
                }
                form.classList.add("was-validated");
            },
            false,
        );
    });

    // Confirm dialogs
    const confirmButtons = document.querySelectorAll("[data-confirm]");
    confirmButtons.forEach(function (button) {
        button.addEventListener("click", function (event) {
            if (!confirm(this.dataset.confirm || "Are you sure?")) {
                event.preventDefault();
            }
        });
    });

    // Back button
    const backButtons = document.querySelectorAll(".btn-back");
    backButtons.forEach(function (button) {
        button.addEventListener("click", function (event) {
            event.preventDefault();
            window.history.back();
        });
    });

    // File input customization
    const fileInputs = document.querySelectorAll(".custom-file-input");
    fileInputs.forEach(function (input) {
        input.addEventListener("change", function (e) {
            const fileName = this.files[0]?.name || "Choose file";
            const nextSibling = this.nextElementSibling;
            if (nextSibling) {
                nextSibling.innerText = fileName;
            }
        });
    });

    // Search form submit on enter
    const searchInputs = document.querySelectorAll(".search-input");
    searchInputs.forEach(function (input) {
        input.addEventListener("keypress", function (e) {
            if (e.key === "Enter") {
                e.preventDefault();
                this.closest("form").submit();
            }
        });
    });

    // Toggle password visibility
    const togglePasswordButtons = document.querySelectorAll(".toggle-password");
    togglePasswordButtons.forEach(function (button) {
        button.addEventListener("click", function () {
            const target = document.querySelector(this.dataset.target);
            if (target) {
                const type = target.getAttribute("type") === "password" ? "text" : "password";
                target.setAttribute("type", type);
                this.querySelector("i").classList.toggle("fa-eye");
                this.querySelector("i").classList.toggle("fa-eye-slash");
            }
        });
    });

    // Dropdown menu positioning
    const dropdowns = document.querySelectorAll(".dropdown-menu");
    dropdowns.forEach(function (dropdown) {
        dropdown.addEventListener("click", function (e) {
            e.stopPropagation();
        });
    });

    // Responsive table handling
    const tables = document.querySelectorAll(".table-responsive");
    if (window.innerWidth < 768) {
        tables.forEach(function (table) {
            table.classList.add("table-responsive-force");
        });
    }

    // Handle special links (printable views, exports)
    const printLinks = document.querySelectorAll(".print-link");
    printLinks.forEach(function (link) {
        link.addEventListener("click", function (e) {
            e.preventDefault();
            window.print();
        });
    });

    const exportLinks = document.querySelectorAll("[data-export]");
    exportLinks.forEach(function (link) {
        link.addEventListener("click", function (e) {
            // Handle export functionality if needed
            console.log("Export requested:", this.dataset.export);
        });
    });

    // Handle sidebar collapse on small screens
    function handleSidebarOnResize() {
        if (window.innerWidth < 768) {
            document.querySelector(".sidebar")?.classList.remove("show");
        }
    }

    window.addEventListener("resize", handleSidebarOnResize); // Theme toggling functionality
    function setTheme(theme, isUserPreference = false) {
        console.log("Setting theme to:", theme, "User preference:", isUserPreference);

        // Update the HTML attribute that controls theme
        document.documentElement.setAttribute("data-bs-theme", theme);

        // Save the theme preference to localStorage
        localStorage.setItem("theme", theme);

        // If this was a user choice (from the toggle button), record that fact
        if (isUserPreference) {
            localStorage.setItem("userPreferredTheme", "true");
        }

        // Update toggle button icon
        const themeToggle = document.getElementById("theme-toggle");
        if (themeToggle) {
            const icon = themeToggle.querySelector("i");
            if (theme === "dark") {
                icon.classList.remove("fa-moon");
                icon.classList.add("fa-sun");
                themeToggle.setAttribute("title", "Switch to light mode");
                themeToggle.setAttribute("aria-label", "Switch to light mode");
            } else {
                icon.classList.remove("fa-sun");
                icon.classList.add("fa-moon");
                themeToggle.setAttribute("title", "Switch to dark mode");
                themeToggle.setAttribute("aria-label", "Switch to dark mode");
            }
        }

        // If we're on a page with charts, refresh them to match the theme
        if (typeof window.refreshAllCharts === "function") {
            console.log("Calling refresh charts from theme toggle");
            // Add a small delay to ensure DOM updates have completed
            setTimeout(window.refreshAllCharts, 100);
        }
    }

    // Check if the user has a system preference for dark mode
    function getSystemPreference() {
        return window.matchMedia("(prefers-color-scheme: dark)").matches ? "dark" : "light";
    }

    // Initialize theme based on saved preference or system setting
    function initializeTheme() {
        // Check if the user has explicitly set a preference
        const hasUserPreference = localStorage.getItem("userPreferredTheme") === "true";
        const savedTheme = localStorage.getItem("theme");
        const systemTheme = getSystemPreference();

        console.log("Theme initialization:", {
            hasUserPreference,
            savedTheme,
            systemTheme,
        });

        // Use saved theme if it exists and was set by user
        // Otherwise, use system preference
        if (hasUserPreference && savedTheme) {
            setTheme(savedTheme);
        } else {
            // No user preference, use system preference
            setTheme(systemTheme);
            // Clear any saved theme to ensure it uses system preference
            localStorage.removeItem("userPreferredTheme");
        }
    }

    // Initialize theme on page load
    initializeTheme();

    // Listen for system preference changes
    const colorSchemeMediaQuery = window.matchMedia("(prefers-color-scheme: dark)");
    colorSchemeMediaQuery.addEventListener("change", (e) => {
        // Only update theme based on system if user hasn't set a preference
        const hasUserPreference = localStorage.getItem("userPreferredTheme") === "true";
        console.log("System preference changed. Following system?", !hasUserPreference);

        if (!hasUserPreference) {
            setTheme(e.matches ? "dark" : "light");
        }
    });

    // Theme toggle button functionality
    const themeToggle = document.getElementById("theme-toggle");
    if (themeToggle) {
        themeToggle.addEventListener("click", function () {
            const currentTheme = document.documentElement.getAttribute("data-bs-theme") || "light";
            const newTheme = currentTheme === "dark" ? "light" : "dark";
            console.log("Manual theme toggle from", currentTheme, "to", newTheme);
            setTheme(newTheme, true); // true indicates this is a user preference
        });
    }
});