/**
 * Reward System Module
 */
(function() {
    function initReward() {
        const btn = document.getElementById('reward-btn');
        const modal = document.getElementById('reward-modal');
        const close = document.getElementById('reward-close');

        if (!btn || !modal) return;

        // Global Click Handler
        // We attach this to document only when modal is open to handle "click anywhere outside content"
        // This is more robust than attaching to the modal container, which might have size/z-index issues.
        
        const handleGlobalClick = (e) => {
            const activeModal = document.getElementById('reward-modal');
            if (!activeModal || !activeModal.classList.contains('show')) return;
            
            // If click is inside the content, ignore
            if (e.target.closest('.reward-content')) return;
            
            // If click is on the open button, ignore (it has its own handler, or we might double-toggle)
            if (e.target.closest('#reward-btn')) return;

            // Otherwise, close it
            hideModal();
        };

        // Helper to show modal
        const showModal = (e) => {
            if(e) {
                e.preventDefault();
                e.stopPropagation();
            }
            modal.classList.add('show');
            document.body.style.overflow = 'hidden'; // Prevent scrolling
            
            // Attach global click listener with a slight delay to avoid current click triggering it
            setTimeout(() => {
                document.addEventListener('click', handleGlobalClick);
            }, 10);
        };

        // Helper to hide modal
        const hideModal = () => {
            modal.classList.remove('show');
            document.body.style.overflow = '';
            document.removeEventListener('click', handleGlobalClick);
        };

        // Button click
        btn.addEventListener('click', showModal);

        // Close button click
        if (close) {
            close.addEventListener('click', (e) => {
                e.stopPropagation(); // Prevent bubbling to global handler (though redundant as handler checks)
                hideModal();
            });
        }
        
        // Remove old direct listeners if any (cleaner approach replaces them)

        // Escape key to close
        if (!window.rewardKeyHandlerAttached) {
            window.rewardKeyHandler = function(e) {
                const activeModal = document.getElementById('reward-modal');
                if (e.key === 'Escape' && activeModal && activeModal.classList.contains('show')) {
                    hideModal(); // Use the same hide function to clean up listeners
                }
            };
            document.addEventListener('keydown', window.rewardKeyHandler);
            window.rewardKeyHandlerAttached = true;
        }
        
        // Expose hideModal for destroy function if needed? 
        // We can just rely on the fact that destroyReward queries DOM.
        // But we need to make sure destroyReward removes the global listener too.
        // Since handleGlobalClick is local scope, we need a way to reference it or just define it outside?
        // Or better: make handleGlobalClick a named function available to destroyReward via a shared scope or window.
        // Let's attach it to window for safety in this module pattern.
        window.rewardGlobalClickHandler = handleGlobalClick;
    }

    function destroyReward() {
        // Cleanup keydown listener
        if (window.rewardKeyHandlerAttached && window.rewardKeyHandler) {
            document.removeEventListener('keydown', window.rewardKeyHandler);
            window.rewardKeyHandlerAttached = false;
            window.rewardKeyHandler = null;
        }
        
        // Cleanup global click listener
        if (window.rewardGlobalClickHandler) {
            document.removeEventListener('click', window.rewardGlobalClickHandler);
            window.rewardGlobalClickHandler = null;
        }
        
        // Hide modal if open (restore body scroll)
        const modal = document.getElementById('reward-modal');
        if (modal && modal.classList.contains('show')) {
            modal.classList.remove('show');
            document.body.style.overflow = '';
        }
    }

    // Initialize on load
    document.addEventListener('DOMContentLoaded', initReward);

    // Initialize on Pjax complete
    document.addEventListener('pjax:complete', initReward);

    // Destroy on Pjax send
    document.addEventListener('pjax:send', destroyReward);
    
    // Export
    window.initReward = initReward;
    window.destroyReward = destroyReward;
})();