/* /assets/js/bridge/rte-editor.js */
(function () {
    const PluginName = 'bridge-rte-editor';
    const B = window.BridgeParts || (window.BridgeParts = {});

    const log = (type, message, color = '#94a3b8', logType = 'info', force = false) => {
        if (typeof B.log === 'function') {
            B.log(PluginName, `[${type}] ${message}`, color, logType, force);
        }
    };

    const escapeHtml = (text) => String(text || '')
        .replace(/&/g, '&')
        .replace(/</g, '&lt;')
        .replace(/>/g, '&gt;')
        .replace(/"/g, '&quot;')
        .replace(/'/g, '&#39;');

    const sanitizeInlineHtml = (rawHtml, fallbackText) => {
        const wrapper = document.createElement('div');
        wrapper.innerHTML = String(rawHtml || '');

        wrapper.querySelectorAll('script,style').forEach((node) => node.remove());

        const inlineTags = new Set(['A', 'B', 'STRONG', 'I', 'EM', 'U', 'S', 'BR', 'SUB', 'SUP', 'SPAN']);
        const blockTags = new Set([
            'DIV', 'P', 'H1', 'H2', 'H3', 'H4', 'H5', 'H6',
            'UL', 'OL', 'LI', 'TABLE', 'TBODY', 'THEAD', 'TFOOT', 'TR', 'TD', 'TH',
            'SECTION', 'ARTICLE', 'ASIDE', 'HEADER', 'FOOTER',
        ]);

        const unwrap = (el, addBreak) => {
            const frag = document.createDocumentFragment();
            if (addBreak) {
                const prev = el.previousSibling;
                const needsLeadBreak = !!(prev && (prev.nodeType === 3 ? prev.textContent.trim() : (prev.tagName && prev.tagName !== 'BR')));
                if (needsLeadBreak) {
                    frag.appendChild(document.createElement('br'));
                }
            }
            while (el.firstChild) {
                frag.appendChild(el.firstChild);
            }
            if (addBreak) {
                frag.appendChild(document.createElement('br'));
            }
            el.replaceWith(frag);
        };

        Array.from(wrapper.querySelectorAll('*')).forEach((el) => {
            const tag = el.tagName;
            if (inlineTags.has(tag)) {
                Array.from(el.attributes).forEach((attr) => {
                    const name = attr.name.toLowerCase();
                    if (tag === 'a') {
                        if (!['href', 'target', 'rel', 'style'].includes(name)) {
                            el.removeAttribute(attr.name);
                        }
                    } else if (name !== 'style') {
                        el.removeAttribute(attr.name);
                    }
                });
                return;
            }
            unwrap(el, blockTags.has(tag));
        });

        let html = wrapper.innerHTML
            .replace(/<br\s*\/?>/gi, '<br>')
            .trim();
        const brCount = (html.match(/<br>/g) || []).length;
        if (brCount <= 1) {
            html = html.replace(/(<br>)+$/g, '').trim();
        }
        if (!html) {
            const text = String(fallbackText || wrapper.textContent || '').trim();
            if (text) html = escapeHtml(text);
        }
        return html;
    };

    const isTextLike = (component) => !!(component && component.is && (component.is('text') || component.is('button') || component.is('link')));

    const logConsoleSnapshot = (editor, component, label) => {
        try {
            const viewEl = component && component.view ? component.view.el : null;
            const modelContent = component && component.get ? String(component.get('content') || '') : '';
            const editorHtml = editor && typeof editor.getHtml === 'function' ? String(editor.getHtml() || '') : '';
            const maxLen = 1000;
            console.log(`[RTE DEBUG] ${label}`, {
                modelId: component && (component.getId ? component.getId() : component.get && component.get('id')),
                modelType: component && component.get ? component.get('type') : undefined,
                modelContentLen: modelContent.length,
                modelContent: modelContent.slice(0, maxLen),
                viewHtmlLen: viewEl ? String(viewEl.innerHTML || '').length : 0,
                viewHtml: viewEl ? String(viewEl.innerHTML || '').slice(0, maxLen) : '',
                viewOuterLen: viewEl ? String(viewEl.outerHTML || '').length : 0,
                viewOuter: viewEl ? String(viewEl.outerHTML || '').slice(0, maxLen) : '',
                editorHtmlLen: editorHtml.length,
                editorHtml: editorHtml.slice(0, maxLen),
            });
        } catch {}
    };

    const applyContentToComponent = (editor, component, html) => {
        if (!component) return;
        const content = String(html || '');
        try {
            const isText = (component.is && component.is('text'))
                || (component.get && component.get('type') === 'text');
            if (isText && component.components) {
                component.components(content);
            }
            if (component.set) component.set('content', content);
        } catch {}
        if (component.view && component.view.el) {
            component.view.el.innerHTML = content;
        }
        if (component.view && typeof component.view.render === 'function') {
            component.view.render();
        }
        if (component.trigger) {
            component.trigger('change:content');
            component.trigger('change:components');
        }
        if (editor && typeof editor.trigger === 'function') {
            editor.trigger('component:update', component);
        }
    };

    const openRichTextModal = (editor, component) => {
        if (!isTextLike(component)) {
            log('RTE', 'Bitte zuerst ein Text-Element auswaehlen.', '#888');
            return;
        }

        const modal = editor && editor.Modal;
        if (!modal || editor.__bridgeRteModalOpen) return;
        editor.__bridgeRteModalOpen = true;

        try {
            const editing = editor.getEditing && editor.getEditing();
            if (editing && editing.model === component && editor.setEditing) {
                editor.setEditing(null);
            }
            if (editor.RichTextEditor && editor.RichTextEditor.disable && component.view && component.view.el) {
                editor.RichTextEditor.disable(component.view.el);
            }
        } catch {}

        const closeModal = () => {
            editor.__bridgeRteModalOpen = false;
            if (typeof modal.close === 'function') {
                modal.close();
            } else if (modal.getModel && modal.getModel().set) {
                modal.getModel().set('open', false);
            }
        };

        const doc = document;
        const container = doc.createElement('div');
        container.style.display = 'flex';
        container.style.flexDirection = 'column';
        container.style.gap = '10px';
        container.style.height = '100%';
        container.style.minHeight = '360px';

        const toolbar = doc.createElement('div');
        toolbar.style.display = 'flex';
        toolbar.style.flexWrap = 'wrap';
        toolbar.style.gap = '6px';
        toolbar.style.alignItems = 'center';

        const content = doc.createElement('div');
        content.contentEditable = 'true';
        content.style.flex = '1';
        content.style.minHeight = '280px';
        content.style.border = '1px solid #cbd5f5';
        content.style.borderRadius = '6px';
        content.style.padding = '12px';
        content.style.background = '#ffffff';
        content.style.overflow = 'auto';
        content.style.fontFamily = 'Arial, sans-serif';
        content.style.fontSize = '14px';

        const initialHtml = (component.get && component.get('content'))
            || (component.view && component.view.el && component.view.el.innerHTML)
            || '';
        content.innerHTML = initialHtml;

        const exec = (cmd, value) => {
            try {
                content.focus();
                const docRef = content.ownerDocument || document;
                docRef.execCommand(cmd, false, value);
            } catch {}
        };

        const addButton = (labelHtml, title, cmd, valueGetter) => {
            const btn = doc.createElement('button');
            btn.type = 'button';
            btn.innerHTML = labelHtml;
            btn.title = title;
            btn.style.padding = '4px 8px';
            btn.style.border = '1px solid #cbd5f5';
            btn.style.borderRadius = '4px';
            btn.style.background = '#f8fafc';
            btn.style.cursor = 'pointer';
            btn.addEventListener('click', () => {
                const value = typeof valueGetter === 'function' ? valueGetter() : valueGetter;
                if (value === null || value === undefined) return;
                if (cmd === 'createLink' && !value) return;
                exec(cmd, value);
            });
            toolbar.appendChild(btn);
        };

        const addSelect = (options, title, onChange) => {
            const select = doc.createElement('select');
            select.title = title;
            select.style.padding = '4px 8px';
            select.style.border = '1px solid #cbd5f5';
            select.style.borderRadius = '4px';
            select.style.background = '#ffffff';
            options.forEach((opt) => {
                const optEl = doc.createElement('option');
                optEl.value = opt.value;
                optEl.textContent = opt.label;
                select.appendChild(optEl);
            });
            select.addEventListener('change', () => {
                const value = select.value;
                if (value) onChange(value);
            });
            toolbar.appendChild(select);
            return select;
        };

        const icon = (path) => `<svg viewBox="0 0 24 24" width="14" height="14" aria-hidden="true"><path d="${path}" fill="currentColor"/></svg>`;
        addButton('<strong>B</strong>', 'Fett', 'bold');
        addButton('<em>I</em>', 'Kursiv', 'italic');
        addButton('<span style="text-decoration:underline">U</span>', 'Unterstrichen', 'underline');
        addButton('<span style="text-decoration:line-through">S</span>', 'Durchgestrichen', 'strikethrough');
        addButton(icon('M4 7h10v2H4zM4 11h16v2H4zM4 15h10v2H4z'), 'Liste (ungeordnet)', 'insertUnorderedList');
        addButton(icon('M4 7h14v2H4zM4 11h14v2H4zM4 15h14v2H4z') + '<span style="font-size:10px;margin-left:4px">1.</span>', 'Liste (geordnet)', 'insertOrderedList');
        addButton(icon('M4 7h10v2H4zM4 11h16v2H4zM4 15h12v2H4z'), 'Linksbundig', 'justifyLeft');
        addButton(icon('M5 7h14v2H5zM4 11h16v2H4zM5 15h14v2H5z'), 'Zentriert', 'justifyCenter');
        addButton(icon('M10 7h10v2H10zM4 11h16v2H4zM8 15h12v2H8z'), 'Rechtsbundig', 'justifyRight');
        addButton(icon('M4 7h16v2H4zM4 11h16v2H4zM4 15h16v2H4z'), 'Blocksatz', 'justifyFull');
        addButton('Link', 'Link einfuegen', 'createLink', () => prompt('Link-URL eingeben', 'https://'));
        addButton('Unlink', 'Link entfernen', 'unlink');
        addButton('Sub', 'Tiefgestellt', 'subscript');
        addButton('Sup', 'Hochgestellt', 'superscript');
        addButton('Einr.', 'Einzug', 'indent');
        addButton('Aus.', 'Ausruecken', 'outdent');
        addButton('Clear', 'Formatierung entfernen', 'removeFormat');

        const fontOptions = (B.RTE_FONTS && Array.isArray(B.RTE_FONTS) && B.RTE_FONTS.length)
            ? B.RTE_FONTS
            : [
                { label: 'Arial', value: 'Arial, sans-serif' },
                { label: 'Calibri', value: 'Calibri, sans-serif' },
                { label: 'Cambria', value: 'Cambria, serif' },
                { label: 'Georgia', value: 'Georgia, serif' },
                { label: 'Tahoma', value: 'Tahoma, sans-serif' },
                { label: 'Times New Roman', value: 'Times New Roman, serif' },
                { label: 'Trebuchet MS', value: 'Trebuchet MS, sans-serif' },
                { label: 'Verdana', value: 'Verdana, sans-serif' },
            ];
        addSelect([{ label: 'Schriftart', value: '' }, ...fontOptions], 'Schriftart', (value) => exec('fontName', value));
        addSelect([
            { label: 'Groesse', value: '' },
            { label: '10px', value: '1' },
            { label: '12px', value: '2' },
            { label: '14px', value: '3' },
            { label: '16px', value: '4' },
            { label: '18px', value: '5' },
            { label: '24px', value: '6' },
            { label: '32px', value: '7' },
        ], 'Schriftgroesse', (value) => exec('fontSize', value));

        const emojiBtn = doc.createElement('button');
        emojiBtn.type = 'button';
        emojiBtn.textContent = ':-)';
        emojiBtn.title = 'Emoticon einfuegen';
        emojiBtn.style.padding = '4px 8px';
        emojiBtn.style.border = '1px solid #cbd5f5';
        emojiBtn.style.borderRadius = '4px';
        emojiBtn.style.background = '#f8fafc';
        emojiBtn.style.cursor = 'pointer';
        emojiBtn.addEventListener('click', () => {
            const pick = prompt('Emoticon eingeben', ':)');
            if (pick) exec('insertText', pick);
        });
        toolbar.appendChild(emojiBtn);

        container.appendChild(toolbar);
        container.appendChild(content);

        const actions = doc.createElement('div');
        actions.style.display = 'flex';
        actions.style.justifyContent = 'flex-end';
        actions.style.gap = '8px';

        const cancelBtn = doc.createElement('button');
        cancelBtn.type = 'button';
        cancelBtn.textContent = 'Abbrechen';
        cancelBtn.style.padding = '6px 12px';
        cancelBtn.style.border = '1px solid #cbd5f5';
        cancelBtn.style.borderRadius = '4px';
        cancelBtn.style.background = '#f8fafc';
        cancelBtn.style.cursor = 'pointer';
        cancelBtn.addEventListener('click', closeModal);

        const saveBtn = doc.createElement('button');
        saveBtn.type = 'button';
        saveBtn.textContent = 'Speichern';
        saveBtn.style.padding = '6px 12px';
        saveBtn.style.border = '1px solid #0ea5e9';
        saveBtn.style.borderRadius = '4px';
        saveBtn.style.background = '#0ea5e9';
        saveBtn.style.color = '#ffffff';
        saveBtn.style.cursor = 'pointer';
        saveBtn.addEventListener('click', () => {
            const rawHtml = content.innerHTML || '';
            const html = sanitizeInlineHtml(rawHtml, content.textContent || '');
            component.__bridgeRteLastContent = html;
            logConsoleSnapshot(editor, component, 'before-save');
            applyContentToComponent(editor, component, html);
            logConsoleSnapshot(editor, component, 'after-save');
            closeModal();
        });

        actions.appendChild(cancelBtn);
        actions.appendChild(saveBtn);
        container.appendChild(actions);

        modal.setTitle('Richtext Editor');
        modal.setContent(container);
        const mdl = modal.getModel && modal.getModel();
        if (mdl && mdl.set) {
            mdl.set('closeOnEsc', true);
            mdl.set('closeOnClick', true);
        }
        modal.open();
    };

    const ensureTextToolbarButton = (component) => {
        if (!isTextLike(component) || !component.get) return;
        const toolbar = component.get('toolbar') || [];
        if (toolbar.some((item) => item && item.command === 'bridge-open-richtext')) return;
        toolbar.push({
            label: '<svg viewBox="0 0 24 24" width="14" height="14" aria-hidden="true"><path d="M4 20h4l10-10-4-4L4 16v4zm14.7-11.3c.4-.4.4-1 0-1.4l-2-2c-.4-.4-1-.4-1.4 0l-1.3 1.3 4 4 1.7-1.9z" fill="currentColor"/></svg>',
            attributes: { title: 'Richtext bearbeiten' },
            command: 'bridge-open-richtext',
        });
        component.set('toolbar', toolbar);
    };

    const setupRichTextEditor = (editor) => {
        if (!editor) return;
        if (editor.Commands && editor.Commands.add) {
            editor.Commands.add('bridge-open-richtext', {
                run(ed, sender, opts = {}) {
                    if (sender && sender.set) sender.set('active', 0);
                    const component = opts.component || ed.getSelected();
                    openRichTextModal(ed, component);
                },
            });
        }

        const cfg = editor.getConfig ? editor.getConfig() : {};
        cfg.richTextEditor = cfg.richTextEditor || {};
        const actions = Array.isArray(cfg.richTextEditor.actions)
            ? cfg.richTextEditor.actions.slice()
            : ['bold', 'italic', 'underline', 'strikethrough', 'link'];
        if (!actions.includes('bridge-open-richtext')) actions.push('bridge-open-richtext');
        cfg.richTextEditor.actions = actions;

        const restoreIfCollapsed = (model) => {
            if (!model || model.__bridgeRteRestoring) return;
            const last = model.__bridgeRteLastContent;
            if (!last || !model.get) return;
            const current = String(model.get('content') || '').trim();
            if (!current || current === '<div></div>' || current === '<div><br></div>' || current === '<div><br></div><br>') {
                model.__bridgeRteRestoring = true;
                logConsoleSnapshot(editor, model, 'restore-start');
                applyContentToComponent(editor, model, last);
                logConsoleSnapshot(editor, model, 'restore-end');
                model.__bridgeRteRestoring = false;
            }
        };

        editor.on('component:update', (model) => restoreIfCollapsed(model));
        editor.on('component:input', (model) => restoreIfCollapsed(model));
        editor.on('component:selected', (model) => ensureTextToolbarButton(model));
        editor.on('component:add', (model) => ensureTextToolbarButton(model));
        editor.on('component:dblclick', (model) => {
            if (isTextLike(model)) openRichTextModal(editor, model);
        });
    };

    B.setupRichTextEditor = setupRichTextEditor;
})();