// JQHTML v2 Runtime - Processes instruction arrays from compiled templates
// Minimal implementation focused on MVP functionality
/// <reference path="./types.d.ts" />
// Process instruction array into DOM elements
export function process_instructions(instructions, component) {
    const fragment = document.createDocumentFragment();
    const stack = [];
    let current = fragment;
    for (const instruction of instructions) {
        // Plain text
        if (typeof instruction === 'string') {
            const text = document.createTextNode(instruction);
            current.appendChild(text);
            continue;
        }
        // Tag instruction: {tag: [name, attrs, selfClosing]}
        if (instruction.tag) {
            const [tag_name, attrs, self_closing] = instruction.tag;
            const element = document.createElement(tag_name);
            // Set attributes
            for (const [key, value] of Object.entries(attrs || {})) {
                element.setAttribute(key, String(value));
            }
            current.appendChild(element);
            // Push to stack if not self-closing
            if (!self_closing) {
                stack.push(current);
                current = element;
            }
            continue;
        }
        // Component instruction: {comp: [name, props]}
        if (instruction.comp) {
            const [comp_name, props] = instruction.comp;
            // Create placeholder div for component
            const placeholder = document.createElement('div');
            placeholder.setAttribute('data-component', comp_name);
            placeholder.setAttribute('data-props', JSON.stringify(props || {}));
            placeholder.setAttribute('data-state', 'uninitialized');
            placeholder.className = 'jqhtml-component';
            current.appendChild(placeholder);
            // TODO: In future, instantiate component here
            continue;
        }
        // Slot instruction: {slot: [name, props, renderFn]}
        if (instruction.slot) {
            const [slot_name, props, render_fn] = instruction.slot;
            // Execute slot render function if provided
            if (render_fn && typeof render_fn === 'function') {
                const slot_context = { ...props };
                const [slot_output] = render_fn.call(component, slot_context);
                // Process slot output recursively
                const slot_dom = process_instructions(slot_output, component);
                slot_dom.each(function () {
                    current.appendChild(this);
                });
            }
            continue;
        }
        // Closing tag (when we see a string like "</div>")
        if (typeof instruction === 'string' && instruction.match(/^<\//)) {
            if (stack.length > 0) {
                current = stack.pop();
            }
        }
    }
    return $(fragment.childNodes);
}
// HTML escape function required by generated code
export function html(str) {
    if (str == null)
        return '';
    const div = document.createElement('div');
    div.textContent = String(str);
    return div.innerHTML;
}
// Component template registry
const template_registry = new Map();
// Register a compiled template
export function register_template(name, render_fn) {
    template_registry.set(name, render_fn);
}
// Get a compiled template
export function get_template(name) {
    return template_registry.get(name);
}
// Create component with template
export function create_templated_component(ComponentClass, template_name, args = {}, element) {
    const template = get_template(template_name);
    if (!template) {
        throw new Error(`Template not found: ${template_name}`);
    }
    // Create component instance - element first, then args
    const component = new ComponentClass(element, args);
    // Override on_render to use template
    component.on_render = async function () {
        // Call template render function
        const [instructions] = template.call(this, ComponentClass, this.data, this.args, {});
        // Process instructions into DOM
        const rendered = process_instructions(instructions, this);
        // Clear and append
        this.$.empty().append(rendered);
    };
    return component;
}
//# sourceMappingURL=runtime.js.map