Advanced metadata

assets/controllers/advanced_metadata_controller.js

@@ -0,0 +1,345 @@
+import { Controller } from '@hotwired/stimulus';
+
+// Inline utility functions
+function calculateShares(splits) {
+    if (splits.length === 0) {
+        return [];
+    }
+
+    // Check if any weights are specified
+    const hasWeights = splits.some(s => s.weight !== undefined && s.weight !== null && s.weight > 0);
+
+    if (!hasWeights) {
+        // Equal distribution
+        const equalShare = 100 / splits.length;
+        return splits.map(() => equalShare);
+    }
+
+    // Calculate total weight
+    const totalWeight = splits.reduce((sum, s) => sum + (s.weight || 0), 0);
+
+    if (totalWeight === 0) {
+        return splits.map(() => 0);
+    }
+
+    // Calculate weighted shares
+    return splits.map(s => {
+        const weight = s.weight || 0;
+        return (weight / totalWeight) * 100;
+    });
+}
+
+function isValidPubkey(pubkey) {
+    if (!pubkey) return false;
+
+    // Check if hex (64 chars)
+    if (/^[0-9a-f]{64}$/i.test(pubkey)) {
+        return true;
+    }
+
+    // Check if npub (basic check)
+    if (pubkey.startsWith('npub1') && pubkey.length > 60) {
+        return true;
+    }
+
+    return false;
+}
+
+function isValidRelay(relay) {
+    if (!relay) return true; // Empty is valid (optional)
+
+    try {
+        const url = new URL(relay);
+        return url.protocol === 'wss:';
+    } catch {
+        return false;
+    }
+}
+
+export default class extends Controller {
+    static targets = [
+        'zapSplitsContainer',
+        'addZapButton',
+        'distributeEquallyButton',
+        'licenseSelect',
+        'customLicenseInput',
+        'protectedCheckbox',
+        'protectedWarning',
+        'expirationInput'
+    ];
+
+    connect() {
+        console.log('Advanced metadata controller connected');
+        this.updateLicenseVisibility();
+        this.updateProtectedWarning();
+        this.updateZapShares();
+    }
+
+    /**
+     * Add a new zap split row
+     */
+    addZapSplit(event) {
+        event.preventDefault();
+
+        const container = this.zapSplitsContainerTarget;
+        const prototype = container.dataset.prototype;
+
+        if (!prototype) {
+            console.error('No prototype found for zap splits');
+            return;
+        }
+
+        // Get the current index
+        const index = parseInt(container.dataset.index || '0', 10);
+
+        // Replace __name__ with the index
+        const newForm = prototype.replace(/__name__/g, index.toString());
+
+        // Create wrapper div
+        const wrapper = document.createElement('div');
+        wrapper.classList.add('zap-split-item', 'mb-3', 'p-3', 'border', 'rounded');
+        wrapper.dataset.index = index.toString();
+        wrapper.innerHTML = newForm;
+
+        // Add delete button
+        const deleteBtn = document.createElement('button');
+        deleteBtn.type = 'button';
+        deleteBtn.classList.add('btn', 'btn-sm', 'btn-danger', 'mt-2');
+        deleteBtn.textContent = 'Remove';
+        deleteBtn.addEventListener('click', () => this.removeZapSplit(wrapper));
+        wrapper.appendChild(deleteBtn);
+
+        // Add share percentage display
+        const shareDisplay = document.createElement('div');
+        shareDisplay.classList.add('zap-share-display', 'mt-2', 'text-muted');
+        shareDisplay.innerHTML = '<small>Share: <span class="share-percent">0</span>%</small>';
+        wrapper.appendChild(shareDisplay);
+
+        container.appendChild(wrapper);
+
+        // Update index
+        container.dataset.index = (index + 1).toString();
+
+        // Add event listeners for live validation and share calculation
+        this.attachZapSplitListeners(wrapper);
+
+        this.updateZapShares();
+    }
+
+    /**
+     * Remove a zap split row
+     */
+    removeZapSplit(wrapper) {
+        wrapper.remove();
+        this.updateZapShares();
+    }
+
+    /**
+     * Distribute weights equally among all splits
+     */
+    distributeEqually(event) {
+        event.preventDefault();
+
+        const splits = this.zapSplitsContainerTarget.querySelectorAll('.zap-split-item');
+
+        splits.forEach((split) => {
+            const weightInput = split.querySelector('.zap-weight');
+            if (weightInput) {
+                weightInput.value = '1';
+            }
+        });
+
+        this.updateZapShares();
+    }
+
+    /**
+     * Update share percentages for all zap splits
+     */
+    updateZapShares() {
+        const splits = this.zapSplitsContainerTarget.querySelectorAll('.zap-split-item');
+        const zapSplits = [];
+
+        splits.forEach((split) => {
+            const weightInput = split.querySelector('.zap-weight');
+            const weight = weightInput?.value ? parseInt(weightInput.value, 10) : undefined;
+
+            zapSplits.push({
+                recipient: '',
+                weight: weight
+            });
+        });
+
+        const shares = calculateShares(zapSplits);
+
+        splits.forEach((split, index) => {
+            const shareDisplay = split.querySelector('.share-percent');
+            if (shareDisplay) {
+                shareDisplay.textContent = shares[index].toFixed(1);
+            }
+        });
+    }
+
+    /**
+     * Attach event listeners to a zap split row
+     */
+    attachZapSplitListeners(wrapper) {
+        const recipientInput = wrapper.querySelector('.zap-recipient');
+        const relayInput = wrapper.querySelector('.zap-relay');
+        const weightInput = wrapper.querySelector('.zap-weight');
+
+        if (recipientInput) {
+            recipientInput.addEventListener('blur', (e) => this.validateRecipient(e.target));
+        }
+
+        if (relayInput) {
+            relayInput.addEventListener('blur', (e) => this.validateRelay(e.target));
+        }
+
+        if (weightInput) {
+            weightInput.addEventListener('input', () => this.updateZapShares());
+        }
+    }
+
+    /**
+     * Validate recipient pubkey (npub or hex)
+     */
+    validateRecipient(input) {
+        const value = input.value.trim();
+
+        if (!value) {
+            this.setInputValid(input, true);
+            return;
+        }
+
+        const isValid = isValidPubkey(value);
+        this.setInputValid(input, isValid, isValid ? '' : 'Invalid pubkey. Must be npub or 64-character hex.');
+    }
+
+    /**
+     * Validate relay URL
+     */
+    validateRelay(input) {
+        const value = input.value.trim();
+
+        if (!value) {
+            this.setInputValid(input, true);
+            return;
+        }
+
+        const isValid = isValidRelay(value);
+        this.setInputValid(input, isValid, isValid ? '' : 'Invalid relay URL. Must start with wss://');
+    }
+
+    /**
+     * Set input validation state
+     */
+    setInputValid(input, isValid, message = '') {
+        if (isValid) {
+            input.classList.remove('is-invalid');
+            input.classList.add('is-valid');
+
+            // Remove error message
+            const feedback = input.parentElement?.querySelector('.invalid-feedback');
+            if (feedback) {
+                feedback.remove();
+            }
+        } else {
+            input.classList.remove('is-valid');
+            input.classList.add('is-invalid');
+
+            // Add/update error message
+            let feedback = input.parentElement?.querySelector('.invalid-feedback');
+            if (!feedback) {
+                feedback = document.createElement('div');
+                feedback.classList.add('invalid-feedback');
+                input.parentElement?.appendChild(feedback);
+            }
+            feedback.textContent = message;
+        }
+    }
+
+    /**
+     * Update license field visibility based on selection
+     */
+    updateLicenseVisibility() {
+        if (!this.hasLicenseSelectTarget || !this.hasCustomLicenseInputTarget) {
+            return;
+        }
+
+        const isCustom = this.licenseSelectTarget.value === 'custom';
+        const customWrapper = this.customLicenseInputTarget.closest('.mb-3');
+
+        if (customWrapper) {
+            if (isCustom) {
+                customWrapper.style.display = 'block';
+                this.customLicenseInputTarget.required = true;
+            } else {
+                customWrapper.style.display = 'none';
+                this.customLicenseInputTarget.required = false;
+                this.customLicenseInputTarget.value = '';
+            }
+        }
+    }
+
+    /**
+     * Show/hide protected event warning
+     */
+    updateProtectedWarning() {
+        if (!this.hasProtectedCheckboxTarget || !this.hasProtectedWarningTarget) {
+            return;
+        }
+
+        if (this.protectedCheckboxTarget.checked) {
+            this.protectedWarningTarget.style.display = 'block';
+        } else {
+            this.protectedWarningTarget.style.display = 'none';
+        }
+    }
+
+    /**
+     * Validate expiration is in the future
+     */
+    validateExpiration() {
+        if (!this.hasExpirationInputTarget) {
+            return;
+        }
+
+        const value = this.expirationInputTarget.value;
+        if (!value) {
+            this.setInputValid(this.expirationInputTarget, true);
+            return;
+        }
+
+        const expirationDate = new Date(value);
+        const now = new Date();
+
+        const isValid = expirationDate > now;
+        this.setInputValid(
+            this.expirationInputTarget,
+            isValid,
+            isValid ? '' : 'Expiration date must be in the future'
+        );
+    }
+
+    /**
+     * Event handler for license select change
+     */
+    licenseChanged() {
+        this.updateLicenseVisibility();
+    }
+
+    /**
+     * Event handler for protected checkbox change
+     */
+    protectedChanged() {
+        this.updateProtectedWarning();
+    }
+
+    /**
+     * Event handler for expiration input change
+     */
+    expirationChanged() {
+        this.validateExpiration();
+    }
+}
+

assets/controllers/nostr-utils.ts

@@ -0,0 +1,285 @@
+/**
+ * Nostr utilities for handling pubkeys, relays, and tag building
+ */
+
+// Bech32 character set
+const BECH32_CHARSET = 'qpzry9x8gf2tvdw0s3jn54khce6mua7l';
+
+/**
+ * Decode bech32 string to hex
+ * Simplified implementation for npub decoding
+ */
+function bech32Decode(str: string): { prefix: string; data: Uint8Array } | null {
+    const lowered = str.toLowerCase();
+
+    // Find the separator
+    let sepIndex = lowered.lastIndexOf('1');
+    if (sepIndex < 1) return null;
+
+    const prefix = lowered.substring(0, sepIndex);
+    const dataStr = lowered.substring(sepIndex + 1);
+
+    if (dataStr.length < 6) return null;
+
+    // Decode the data
+    const values: number[] = [];
+    for (let i = 0; i < dataStr.length; i++) {
+        const c = dataStr[i];
+        const v = BECH32_CHARSET.indexOf(c);
+        if (v === -1) return null;
+        values.push(v);
+    }
+
+    // Remove checksum (last 6 chars)
+    const data = values.slice(0, -6);
+
+    // Convert from 5-bit to 8-bit
+    const bytes: number[] = [];
+    let acc = 0;
+    let bits = 0;
+
+    for (const value of data) {
+        acc = (acc << 5) | value;
+        bits += 5;
+
+        if (bits >= 8) {
+            bits -= 8;
+            bytes.push((acc >> bits) & 0xff);
+        }
+    }
+
+    return {
+        prefix,
+        data: new Uint8Array(bytes)
+    };
+}
+
+/**
+ * Convert Uint8Array to hex string
+ */
+function bytesToHex(bytes: Uint8Array): string {
+    return Array.from(bytes)
+        .map(b => b.toString(16).padStart(2, '0'))
+        .join('');
+}
+
+/**
+ * Convert npub to hex pubkey
+ */
+export function npubToHex(npub: string): string | null {
+    if (!npub.startsWith('npub1')) {
+        // Check if it's already hex
+        if (/^[0-9a-f]{64}$/i.test(npub)) {
+            return npub.toLowerCase();
+        }
+        return null;
+    }
+
+    try {
+        const decoded = bech32Decode(npub);
+        if (!decoded || decoded.prefix !== 'npub') {
+            return null;
+        }
+
+        return bytesToHex(decoded.data);
+    } catch (e) {
+        console.error('Error decoding npub:', e);
+        return null;
+    }
+}
+
+/**
+ * Validate if a string is a valid npub or hex pubkey
+ */
+export function isValidPubkey(pubkey: string): boolean {
+    if (!pubkey) return false;
+
+    // Check if hex (64 chars)
+    if (/^[0-9a-f]{64}$/i.test(pubkey)) {
+        return true;
+    }
+
+    // Check if npub
+    if (pubkey.startsWith('npub1')) {
+        return npubToHex(pubkey) !== null;
+    }
+
+    return false;
+}
+
+/**
+ * Validate relay URL
+ */
+export function isValidRelay(relay: string): boolean {
+    if (!relay) return true; // Empty is valid (optional)
+
+    try {
+        const url = new URL(relay);
+        return url.protocol === 'wss:';
+    } catch {
+        return false;
+    }
+}
+
+/**
+ * ZapSplit interface
+ */
+export interface ZapSplit {
+    recipient: string;
+    relay?: string;
+    weight?: number;
+    sharePercent?: number;
+}
+
+/**
+ * Calculate share percentages for zap splits
+ */
+export function calculateShares(splits: ZapSplit[]): number[] {
+    if (splits.length === 0) {
+        return [];
+    }
+
+    // Check if any weights are specified
+    const hasWeights = splits.some(s => s.weight !== undefined && s.weight !== null && s.weight > 0);
+
+    if (!hasWeights) {
+        // Equal distribution
+        const equalShare = 100 / splits.length;
+        return splits.map(() => equalShare);
+    }
+
+    // Calculate total weight
+    const totalWeight = splits.reduce((sum, s) => sum + (s.weight || 0), 0);
+
+    if (totalWeight === 0) {
+        return splits.map(() => 0);
+    }
+
+    // Calculate weighted shares
+    return splits.map(s => {
+        const weight = s.weight || 0;
+        return (weight / totalWeight) * 100;
+    });
+}
+
+/**
+ * Build a zap tag for Nostr event
+ */
+export function buildZapTag(split: ZapSplit): (string | number)[] {
+    const hexPubkey = npubToHex(split.recipient);
+    if (!hexPubkey) {
+        throw new Error(`Invalid recipient pubkey: ${split.recipient}`);
+    }
+
+    const tag: (string | number)[] = ['zap', hexPubkey];
+
+    // Add relay (even if empty, to maintain position)
+    tag.push(split.relay || '');
+
+    // Add weight if specified
+    if (split.weight !== undefined && split.weight !== null) {
+        tag.push(split.weight);
+    }
+
+    return tag;
+}
+
+/**
+ * Advanced metadata interface
+ */
+export interface AdvancedMetadata {
+    doNotRepublish: boolean;
+    license: string;
+    customLicense?: string;
+    zapSplits: ZapSplit[];
+    contentWarning?: string;
+    expirationTimestamp?: number;
+    isProtected: boolean;
+}
+
+/**
+ * Build advanced metadata tags for Nostr event
+ */
+export function buildAdvancedTags(metadata: AdvancedMetadata): any[][] {
+    const tags: any[][] = [];
+
+    // Policy: Do not republish
+    if (metadata.doNotRepublish) {
+        tags.push(['L', 'rights.decent.newsroom']);
+        tags.push(['l', 'no-republish', 'rights.decent.newsroom']);
+    }
+
+    // License
+    const license = metadata.license === 'custom' ? metadata.customLicense : metadata.license;
+    if (license && license !== 'All rights reserved') {
+        tags.push(['L', 'spdx.org/licenses']);
+        tags.push(['l', license, 'spdx.org/licenses']);
+    } else if (license === 'All rights reserved') {
+        tags.push(['L', 'rights.decent.newsroom']);
+        tags.push(['l', 'all-rights-reserved', 'rights.decent.newsroom']);
+    }
+
+    // Zap splits
+    for (const split of metadata.zapSplits) {
+        try {
+            tags.push(buildZapTag(split));
+        } catch (e) {
+            console.error('Error building zap tag:', e);
+        }
+    }
+
+    // Content warning
+    if (metadata.contentWarning) {
+        tags.push(['content-warning', metadata.contentWarning]);
+    }
+
+    // Expiration
+    if (metadata.expirationTimestamp) {
+        tags.push(['expiration', metadata.expirationTimestamp.toString()]);
+    }
+
+    // Protected event
+    if (metadata.isProtected) {
+        tags.push(['-']);
+    }
+
+    return tags;
+}
+
+/**
+ * Validate advanced metadata before publishing
+ */
+export function validateAdvancedMetadata(metadata: AdvancedMetadata): { valid: boolean; errors: string[] } {
+    const errors: string[] = [];
+
+    // Validate zap splits
+    for (let i = 0; i < metadata.zapSplits.length; i++) {
+        const split = metadata.zapSplits[i];
+
+        if (!isValidPubkey(split.recipient)) {
+            errors.push(`Zap split ${i + 1}: Invalid recipient pubkey`);
+        }
+
+        if (split.relay && !isValidRelay(split.relay)) {
+            errors.push(`Zap split ${i + 1}: Invalid relay URL (must start with wss://)`);
+        }
+
+        if (split.weight !== undefined && split.weight !== null && split.weight < 0) {
+            errors.push(`Zap split ${i + 1}: Weight must be 0 or greater`);
+        }
+    }
+
+    // Validate expiration is in the future
+    if (metadata.expirationTimestamp) {
+        const now = Math.floor(Date.now() / 1000);
+        if (metadata.expirationTimestamp <= now) {
+            errors.push('Expiration date must be in the future');
+        }
+    }
+
+    return {
+        valid: errors.length === 0,
+        errors
+    };
+}
+

assets/controllers/nostr_publish_controller.js

@@ -1,5 +1,86 @@
 import { Controller } from '@hotwired/stimulus';
 
+// Inline utility functions (simplified versions)
+function buildAdvancedTags(metadata) {
+  const tags = [];
+
+  // Policy: Do not republish
+  if (metadata.doNotRepublish) {
+    tags.push(['L', 'rights.decent.newsroom']);
+    tags.push(['l', 'no-republish', 'rights.decent.newsroom']);
+  }
+
+  // License
+  const license = metadata.license === 'custom' ? metadata.customLicense : metadata.license;
+  if (license && license !== 'All rights reserved') {
+    tags.push(['L', 'spdx.org/licenses']);
+    tags.push(['l', license, 'spdx.org/licenses']);
+  } else if (license === 'All rights reserved') {
+    tags.push(['L', 'rights.decent.newsroom']);
+    tags.push(['l', 'all-rights-reserved', 'rights.decent.newsroom']);
+  }
+
+  // Zap splits
+  for (const split of metadata.zapSplits) {
+    const zapTag = ['zap', split.recipient, split.relay || ''];
+    if (split.weight !== undefined && split.weight !== null) {
+      zapTag.push(split.weight.toString());
+    }
+    tags.push(zapTag);
+  }
+
+  // Content warning
+  if (metadata.contentWarning) {
+    tags.push(['content-warning', metadata.contentWarning]);
+  }
+
+  // Expiration
+  if (metadata.expirationTimestamp) {
+    tags.push(['expiration', metadata.expirationTimestamp.toString()]);
+  }
+
+  // Protected event
+  if (metadata.isProtected) {
+    tags.push(['-']);
+  }
+
+  return tags;
+}
+
+function validateAdvancedMetadata(metadata) {
+  const errors = [];
+
+  // Basic validation
+  for (let i = 0; i < metadata.zapSplits.length; i++) {
+    const split = metadata.zapSplits[i];
+
+    if (!split.recipient) {
+      errors.push(`Zap split ${i + 1}: Recipient is required`);
+    }
+
+    if (split.relay && !split.relay.startsWith('wss://')) {
+      errors.push(`Zap split ${i + 1}: Invalid relay URL (must start with wss://)`);
+    }
+
+    if (split.weight !== undefined && split.weight !== null && split.weight < 0) {
+      errors.push(`Zap split ${i + 1}: Weight must be 0 or greater`);
+    }
+  }
+
+  // Validate expiration is in the future
+  if (metadata.expirationTimestamp) {
+    const now = Math.floor(Date.now() / 1000);
+    if (metadata.expirationTimestamp <= now) {
+      errors.push('Expiration date must be in the future');
+    }
+  }
+
+  return {
+    valid: errors.length === 0,
+    errors
+  };
+}
+
 export default class extends Controller {
   static targets = ['form', 'publishButton', 'status'];
   static values = {
@@ -76,48 +157,106 @@ export default class extends Controller {
   collectFormData() {
     // Find the actual form element within our target
     const form = this.formTarget.querySelector('form');
-        if (!form) {
+    if (!form) throw new Error('Form element not found');
-            throw new Error('Form element not found');
+
-        }
+    const fd = new FormData(form);
+
+    // Prefer the Markdown field populated by the Quill controller
+    const md = fd.get('editor[content_md]');
+    let html = fd.get('editor[content]') || fd.get('content') || '';
 
-        const formData = new FormData(form);
+    // Final content: use MD if present, otherwise convert HTML -> MD
+    const content = (typeof md === 'string' && md.length > 0)
+      ? md
+      : this.htmlToMarkdown(String(html));
 
-        let content = formData.get('editor[content]') || '';
+    const title = fd.get('editor[title]') || '';
-        content = this.htmlToMarkdown(content);
+    const summary = fd.get('editor[summary]') || '';
+    const image = fd.get('editor[image]') || '';
+    const topicsString = fd.get('editor[topics]') || '';
+    const isDraft = fd.get('editor[isDraft]') === '1';
+    const addClientTag = fd.get('editor[clientTag]') === '1';
 
-        const title = formData.get('editor[title]') || '';
+    // Collect advanced metadata
-        const summary = formData.get('editor[summary]') || '';
+    const advancedMetadata = this.collectAdvancedMetadata(fd);
-        const image = formData.get('editor[image]') || '';
-        const topicsString = formData.get('editor[topics]') || '';
-        const isDraft = formData.get('editor[isDraft]') === '1';
-        const addClientTag = formData.get('editor[clientTag]') === '1';
 
     // Parse topics
-        const topics = topicsString.split(',')
+    const topics = String(topicsString).split(',')
-            .map(topic => topic.trim())
+      .map(s => s.trim())
-            .filter(topic => topic.length > 0)
+      .filter(Boolean)
-            .map(topic => topic.startsWith('#') ? topic : `#${topic}`);
+      .map(t => t.startsWith('#') ? t : `#${t}`);
 
     // Reuse existing slug if provided on the container (editing), else generate from title
     const existingSlug = (this.element.dataset.slug || '').trim();
-        const slug = existingSlug || this.generateSlug(title);
+    const slug = existingSlug || this.generateSlug(String(title));
 
     return {
-            title,
+      title: String(title),
-            summary,
+      summary: String(summary),
       content,
-            image,
+      image: String(image),
       topics,
       slug,
       isDraft,
-            addClientTag
+      addClientTag,
+      advancedMetadata,
     };
   }
 
+  collectAdvancedMetadata(fd) {
+    const metadata = {
+      doNotRepublish: fd.get('editor[advancedMetadata][doNotRepublish]') === '1',
+      license: fd.get('editor[advancedMetadata][license]') || '',
+      customLicense: fd.get('editor[advancedMetadata][customLicense]') || '',
+      contentWarning: fd.get('editor[advancedMetadata][contentWarning]') || '',
+      isProtected: fd.get('editor[advancedMetadata][isProtected]') === '1',
+      zapSplits: [],
+    };
+
+    // Parse expiration timestamp
+    const expirationDate = fd.get('editor[advancedMetadata][expirationTimestamp]');
+    if (expirationDate) {
+      try {
+        metadata.expirationTimestamp = Math.floor(new Date(expirationDate).getTime() / 1000);
+      } catch (e) {
+        console.warn('Invalid expiration date:', e);
+      }
+    }
+
+    // Collect zap splits
+    let index = 0;
+    while (true) {
+      const recipient = fd.get(`editor[advancedMetadata][zapSplits][${index}][recipient]`);
+      if (!recipient) break;
+
+      const relay = fd.get(`editor[advancedMetadata][zapSplits][${index}][relay]`) || '';
+      const weightStr = fd.get(`editor[advancedMetadata][zapSplits][${index}][weight]`);
+      const weight = weightStr ? parseInt(weightStr, 10) : undefined;
+
+      metadata.zapSplits.push({
+        recipient: String(recipient),
+        relay: relay ? String(relay) : undefined,
+        weight: weight !== undefined && !isNaN(weight) ? weight : undefined,
+      });
+
+      index++;
+    }
+
+    return metadata;
+  }
+
   async createNostrEvent(formData) {
     // Get user's public key
     const pubkey = await window.nostr.getPublicKey();
 
+    // Validate advanced metadata if present
+    if (formData.advancedMetadata && formData.advancedMetadata.zapSplits.length > 0) {
+      const validation = validateAdvancedMetadata(formData.advancedMetadata);
+      if (!validation.valid) {
+        throw new Error('Invalid advanced metadata: ' + validation.errors.join(', '));
+      }
+    }
+
     // Create tags array
     const tags = [
       ['d', formData.slug],
@@ -147,9 +286,15 @@ export default class extends Controller {
       tags.push(['client', 'Decent Newsroom']);
     }
 
+    // Add advanced metadata tags
+    if (formData.advancedMetadata) {
+      const advancedTags = buildAdvancedTags(formData.advancedMetadata);
+      tags.push(...advancedTags);
+    }
+
     // Create the Nostr event (NIP-23 long-form content)
     const event = {
-            kind: kind, // Long-form content kind
+      kind: kind,
       created_at: Math.floor(Date.now() / 1000),
       tags: tags,
       content: formData.content,
@@ -183,7 +328,6 @@ export default class extends Controller {
 
   htmlToMarkdown(html) {
     // Basic HTML to Markdown conversion
-        // This is a simplified version - you might want to use a proper library
     let markdown = html;
 
     // Convert headers
@@ -200,7 +344,7 @@ export default class extends Controller {
     // Convert links
     markdown = markdown.replace(/<a[^>]*href="([^"]*)"[^>]*>(.*?)<\/a>/gi, '[$2]($1)');
 
-        // Convert images (handle src/alt in any order)
+    // Convert images
     markdown = markdown.replace(/<img\b[^>]*>/gi, (imgTag) => {
       const srcMatch = imgTag.match(/src=["']([^"']+)["']/i);
       const altMatch = imgTag.match(/alt=["']([^"']*)["']/i);
@@ -233,7 +377,7 @@ export default class extends Controller {
     markdown = markdown.replace(/&lt;/g, '<');
     markdown = markdown.replace(/&gt;/g, '>');
     markdown = markdown.replace(/&quot;/g, '"');
-        markdown = markdown.replace(/<[^>]*>/g, ''); // Remove any remaining HTML tags
+    markdown = markdown.replace(/<[^>]*>/g, '');
 
     // Clean up extra whitespace
     markdown = markdown.replace(/\n{3,}/g, '\n\n').trim();
@@ -247,10 +391,10 @@ export default class extends Controller {
     title = `${title} ${randomSeed}`;
     return title
       .toLowerCase()
-            .replace(/[^a-z0-9\s-]/g, '') // Remove special characters
+      .replace(/[^a-z0-9\s-]/g, '')
-            .replace(/\s+/g, '-') // Replace spaces with hyphens
+      .replace(/\s+/g, '-')
-            .replace(/-+/g, '-') // Replace multiple hyphens with single
+      .replace(/-+/g, '-')
-            .replace(/^-|-$/g, ''); // Remove leading/trailing hyphens
+      .replace(/^-|-$/g, '');
   }
 
   showStatus(message) {
@@ -271,3 +415,4 @@ export default class extends Controller {
     }
   }
 }
+

assets/styles/04-pages/highlights.css

@@ -100,6 +100,10 @@
 }
 
 @media (max-width: 768px) {
+    .highlights-grid {
+        column-count: 1;
+    }
+
     .highlight-card {
         margin-bottom: 1.5rem;
     }

assets/styles/advanced-metadata.css

@@ -0,0 +1,150 @@
+/* Advanced Metadata Styles */
+
+.advanced-metadata-section details {
+    border: 1px solid #dee2e6;
+    border-radius: 0.375rem;
+    padding: 1rem;
+    background-color: #f8f9fa;
+}
+
+.advanced-metadata-section summary {
+    cursor: pointer;
+    user-select: none;
+    font-weight: 600;
+    margin: -1rem -1rem 0 -1rem;
+    padding: 1rem;
+}
+
+.advanced-metadata-section summary:hover {
+    background-color: #e9ecef;
+}
+
+.advanced-metadata-section details[open] summary {
+    border-bottom: 1px solid #dee2e6;
+    margin-bottom: 1rem;
+}
+
+.zap-split-item {
+    background-color: #ffffff;
+    transition: box-shadow 0.2s;
+}
+
+.zap-split-item:hover {
+    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
+}
+
+.zap-share-display {
+    font-size: 0.875rem;
+    font-weight: 600;
+    color: #6c757d;
+}
+
+.upload-area {
+    border: 2px dashed #dee2e6;
+    border-radius: 0.375rem;
+    padding: 2rem;
+    text-align: center;
+    cursor: pointer;
+    transition: all 0.2s;
+    margin: 1rem 0;
+}
+
+.upload-area:hover {
+    border-color: #0d6efd;
+    background-color: #f8f9fa;
+}
+
+.upload-area input[type="file"] {
+    display: none;
+}
+
+.iu-dialog {
+    display: none;
+    position: fixed;
+    top: 0;
+    left: 0;
+    right: 0;
+    bottom: 0;
+    z-index: 1050;
+}
+
+.iu-dialog.active {
+    display: block;
+}
+
+.iu-backdrop {
+    position: absolute;
+    top: 0;
+    left: 0;
+    right: 0;
+    bottom: 0;
+    background-color: rgba(0, 0, 0, 0.5);
+}
+
+.iu-modal {
+    position: relative;
+    max-width: 500px;
+    margin: 3rem auto;
+    background-color: white;
+    border-radius: 0.375rem;
+    box-shadow: 0 0.5rem 1rem rgba(0, 0, 0, 0.15);
+    z-index: 1051;
+}
+
+.modal-header {
+    padding: 1rem;
+    border-bottom: 1px solid #dee2e6;
+    display: flex;
+    justify-content: space-between;
+    align-items: center;
+}
+
+.modal-header .close {
+    background: none;
+    border: none;
+    font-size: 1.5rem;
+    cursor: pointer;
+    color: #6c757d;
+}
+
+.modal-body {
+    padding: 1rem;
+}
+
+.upload-progress,
+.upload-error {
+    margin-top: 1rem;
+    padding: 0.75rem;
+    border-radius: 0.375rem;
+}
+
+.upload-progress {
+    background-color: #d1ecf1;
+    color: #0c5460;
+}
+
+.upload-error {
+    background-color: #f8d7da;
+    color: #721c24;
+}
+
+/* Form validation styles */
+.form-control.is-invalid {
+    border-color: #dc3545;
+}
+
+.form-control.is-valid {
+    border-color: #28a745;
+}
+
+.invalid-feedback {
+    display: block;
+    margin-top: 0.25rem;
+    font-size: 0.875em;
+    color: #dc3545;
+}
+
+.cursor-pointer {
+    cursor: pointer;
+}
+

composer.json

@@ -52,6 +52,7 @@
         "symfony/twig-bundle": "7.2.*",
         "symfony/ux-icons": "^2.22",
         "symfony/ux-live-component": "^2.21",
+        "symfony/validator": "^7.2",
         "symfony/workflow": "7.2.*",
         "symfony/yaml": "7.2.*",
         "tkijewski/php-lnurl": "*",

composer.lock

@@ -4,7 +4,7 @@
         "Read more about it at https://getcomposer.org/doc/01-basic-usage.md#installing-dependencies",
         "This file is @generated automatically"
     ],
-    "content-hash": "e294409f4f3b8647d655053fddae6168",
+    "content-hash": "24e3ddfdfbf97ad8ae4e802565a80d28",
     "packages": [
         {
             "name": "bacon/bacon-qr-code",
@@ -10284,6 +10284,107 @@
             ],
             "time": "2025-10-17T06:14:35+00:00"
         },
+        {
+            "name": "symfony/validator",
+            "version": "v7.2.9",
+            "source": {
+                "type": "git",
+                "url": "https://github.com/symfony/validator.git",
+                "reference": "b5410782f69892acf828e0eec7943a2caca46ed6"
+            },
+            "dist": {
+                "type": "zip",
+                "url": "https://api.github.com/repos/symfony/validator/zipball/b5410782f69892acf828e0eec7943a2caca46ed6",
+                "reference": "b5410782f69892acf828e0eec7943a2caca46ed6",
+                "shasum": ""
+            },
+            "require": {
+                "php": ">=8.2",
+                "symfony/deprecation-contracts": "^2.5|^3",
+                "symfony/polyfill-ctype": "~1.8",
+                "symfony/polyfill-mbstring": "~1.0",
+                "symfony/polyfill-php83": "^1.27",
+                "symfony/translation-contracts": "^2.5|^3"
+            },
+            "conflict": {
+                "doctrine/lexer": "<1.1",
+                "symfony/dependency-injection": "<6.4",
+                "symfony/doctrine-bridge": "<7.0",
+                "symfony/expression-language": "<6.4",
+                "symfony/http-kernel": "<6.4",
+                "symfony/intl": "<6.4",
+                "symfony/property-info": "<6.4",
+                "symfony/translation": "<6.4.3|>=7.0,<7.0.3",
+                "symfony/yaml": "<6.4"
+            },
+            "require-dev": {
+                "egulias/email-validator": "^2.1.10|^3|^4",
+                "symfony/cache": "^6.4|^7.0",
+                "symfony/config": "^6.4|^7.0",
+                "symfony/console": "^6.4|^7.0",
+                "symfony/dependency-injection": "^6.4|^7.0",
+                "symfony/expression-language": "^6.4|^7.0",
+                "symfony/finder": "^6.4|^7.0",
+                "symfony/http-client": "^6.4|^7.0",
+                "symfony/http-foundation": "^6.4|^7.0",
+                "symfony/http-kernel": "^6.4|^7.0",
+                "symfony/intl": "^6.4|^7.0",
+                "symfony/mime": "^6.4|^7.0",
+                "symfony/property-access": "^6.4|^7.0",
+                "symfony/property-info": "^6.4|^7.0",
+                "symfony/translation": "^6.4.3|^7.0.3",
+                "symfony/type-info": "^7.1.8",
+                "symfony/yaml": "^6.4|^7.0"
+            },
+            "type": "library",
+            "autoload": {
+                "psr-4": {
+                    "Symfony\\Component\\Validator\\": ""
+                },
+                "exclude-from-classmap": [
+                    "/Tests/",
+                    "/Resources/bin/"
+                ]
+            },
+            "notification-url": "https://packagist.org/downloads/",
+            "license": [
+                "MIT"
+            ],
+            "authors": [
+                {
+                    "name": "Fabien Potencier",
+                    "email": "fabien@symfony.com"
+                },
+                {
+                    "name": "Symfony Community",
+                    "homepage": "https://symfony.com/contributors"
+                }
+            ],
+            "description": "Provides tools to validate values",
+            "homepage": "https://symfony.com",
+            "support": {
+                "source": "https://github.com/symfony/validator/tree/v7.2.9"
+            },
+            "funding": [
+                {
+                    "url": "https://symfony.com/sponsor",
+                    "type": "custom"
+                },
+                {
+                    "url": "https://github.com/fabpot",
+                    "type": "github"
+                },
+                {
+                    "url": "https://github.com/nicolas-grekas",
+                    "type": "github"
+                },
+                {
+                    "url": "https://tidelift.com/funding/github/packagist/symfony/symfony",
+                    "type": "tidelift"
+                }
+            ],
+            "time": "2025-07-29T19:57:35+00:00"
+        },
         {
             "name": "symfony/var-dumper",
             "version": "v7.2.9",

importmap.php

@@ -112,4 +112,7 @@ return [
         'version' => '0.16.25',
         'type' => 'css',
     ],
+    'katex/dist/katex.min.js' => [
+        'version' => '0.16.25',
+    ],
 ];

migrations/Version20251105000000.php

@@ -0,0 +1,27 @@
+<?php
+
+declare(strict_types=1);
+
+namespace DoctrineMigrations;
+
+use Doctrine\DBAL\Schema\Schema;
+use Doctrine\Migrations\AbstractMigration;
+
+final class Version20251105000000 extends AbstractMigration
+{
+    public function getDescription(): string
+    {
+        return 'Add advanced_metadata field to article table for storing Nostr advanced tags';
+    }
+
+    public function up(Schema $schema): void
+    {
+        $this->addSql('ALTER TABLE article ADD advanced_metadata JSON DEFAULT NULL');
+    }
+
+    public function down(Schema $schema): void
+    {
+        $this->addSql('ALTER TABLE article DROP advanced_metadata');
+    }
+}
+

src/Controller/ArticleController.php

@@ -2,10 +2,13 @@
 
 namespace App\Controller;
 
+use App\Dto\AdvancedMetadata;
 use App\Entity\Article;
 use App\Enum\KindsEnum;
 use App\Form\EditorType;
 use App\Service\NostrClient;
+use App\Service\Nostr\NostrEventBuilder;
+use App\Service\Nostr\NostrEventParser;
 use App\Service\RedisCacheService;
 use App\Util\CommonMark\Converter;
 use Doctrine\ORM\EntityManagerInterface;
@@ -139,8 +142,16 @@ class ArticleController  extends AbstractController
      */
     #[Route('/article-editor/create', name: 'editor-create')]
     #[Route('/article-editor/edit/{slug}', name: 'editor-edit-slug')]
-    public function newArticle(Request $request, NostrClient $nostrClient, EntityManagerInterface $entityManager, $slug = null): Response
+    public function newArticle(
+        Request $request,
+        NostrClient $nostrClient,
+        EntityManagerInterface $entityManager,
+        NostrEventParser $eventParser,
+        $slug = null
+    ): Response
     {
+        $advancedMetadata = null;
+
         if (!$slug) {
             $article = new Article();
             $article->setKind(KindsEnum::LONGFORM);
@@ -159,6 +170,11 @@ class ArticleController  extends AbstractController
                 return $b->getCreatedAt() <=> $a->getCreatedAt();
             });
             $article = array_shift($articles);
+            // Parse advanced metadata from the raw event if available
+            if ($article->getRaw()) {
+                $tags = $article->getRaw()['tags'] ?? [];
+                $advancedMetadata = $eventParser->parseAdvancedMetadata($tags);
+            }
         }
 
         $recentArticles = [];
@@ -193,6 +209,11 @@ class ArticleController  extends AbstractController
         }
 
         $form = $this->createForm(EditorType::class, $article, ['action' => $formAction]);
+        // Populate advanced metadata form data
+        if ($advancedMetadata) {
+            $form->get('advancedMetadata')->setData($advancedMetadata);
+        }
+
         $form->handleRequest($request);
 
         // load template with content editor
@@ -215,7 +236,8 @@ class ArticleController  extends AbstractController
         NostrClient $nostrClient,
         CacheItemPoolInterface $articlesCache,
         CsrfTokenManagerInterface $csrfTokenManager,
-        LoggerInterface $logger
+        LoggerInterface $logger,
+        NostrEventParser $eventParser
     ): JsonResponse {
         try {
             // Verify CSRF token
@@ -281,6 +303,23 @@ class ArticleController  extends AbstractController
             $article->setCreatedAt(new \DateTimeImmutable('@' . $signedEvent['created_at']));
             $article->setPublishedAt(new \DateTimeImmutable());
 
+            // Parse and store advanced metadata
+            $advancedMetadata = $eventParser->parseAdvancedMetadata($signedEvent['tags']);
+            $article->setAdvancedMetadata([
+                'doNotRepublish' => $advancedMetadata->doNotRepublish,
+                'license' => $advancedMetadata->getLicenseValue(),
+                'zapSplits' => array_map(function($split) {
+                    return [
+                        'recipient' => $split->recipient,
+                        'relay' => $split->relay,
+                        'weight' => $split->weight,
+                    ];
+                }, $advancedMetadata->zapSplits),
+                'contentWarning' => $advancedMetadata->contentWarning,
+                'expirationTimestamp' => $advancedMetadata->expirationTimestamp,
+                'isProtected' => $advancedMetadata->isProtected,
+            ]);
+
             // Save to database
             $entityManager->persist($article);
             $entityManager->flush();

src/Dto/AdvancedMetadata.php

@@ -0,0 +1,67 @@
+<?php
+
+declare(strict_types=1);
+
+namespace App\Dto;
+
+use Symfony\Component\Validator\Constraints as Assert;
+
+class AdvancedMetadata
+{
+    public bool $doNotRepublish = false;
+
+    #[Assert\Choice(choices: [
+        '',
+        'CC0-1.0',
+        'CC-BY-4.0',
+        'CC-BY-SA-4.0',
+        'CC-BY-NC-4.0',
+        'CC-BY-NC-SA-4.0',
+        'CC-BY-ND-4.0',
+        'CC-BY-NC-ND-4.0',
+        'MIT',
+        'Apache-2.0',
+        'GPL-3.0',
+        'AGPL-3.0',
+        'All rights reserved',
+        'custom'
+    ])]
+    public string $license = '';
+
+    public ?string $customLicense = null;
+
+    /** @var ZapSplit[] */
+    #[Assert\Valid]
+    public array $zapSplits = [];
+
+    public ?string $contentWarning = null;
+
+    public ?int $expirationTimestamp = null;
+
+    public bool $isProtected = false;
+
+    /** @var array<string, mixed> Additional tags to preserve on re-publish */
+    public array $extraTags = [];
+
+    public function addZapSplit(ZapSplit $split): void
+    {
+        $this->zapSplits[] = $split;
+    }
+
+    public function removeZapSplit(int $index): void
+    {
+        if (isset($this->zapSplits[$index])) {
+            unset($this->zapSplits[$index]);
+            $this->zapSplits = array_values($this->zapSplits);
+        }
+    }
+
+    public function getLicenseValue(): ?string
+    {
+        if ($this->license === 'custom') {
+            return $this->customLicense;
+        }
+        return $this->license !== '' ? $this->license : null;
+    }
+}
+

src/Dto/ZapSplit.php

@@ -0,0 +1,51 @@
+<?php
+
+declare(strict_types=1);
+
+namespace App\Dto;
+
+use Symfony\Component\Validator\Constraints as Assert;
+
+class ZapSplit
+{
+    #[Assert\NotBlank(message: 'Recipient is required')]
+    public string $recipient = '';
+
+    #[Assert\Regex(
+        pattern: '/^wss:\/\/.+/',
+        message: 'Relay must be a valid WebSocket URL starting with wss://'
+    )]
+    public ?string $relay = null;
+
+    #[Assert\PositiveOrZero(message: 'Weight must be 0 or greater')]
+    public ?int $weight = null;
+
+    /** Computed share percentage (0-100) */
+    public ?float $sharePercent = null;
+
+    public function __construct(
+        string $recipient = '',
+        ?string $relay = null,
+        ?int $weight = null
+    ) {
+        $this->recipient = $recipient;
+        $this->relay = $relay;
+        $this->weight = $weight;
+    }
+
+    /**
+     * Returns the recipient as hex pubkey.
+     * If it's an npub, it gets converted to hex.
+     */
+    public function getRecipientHex(): string
+    {
+        // This will be handled by the service/utility
+        return $this->recipient;
+    }
+
+    public function isNpub(): bool
+    {
+        return str_starts_with($this->recipient, 'npub1');
+    }
+}
+

src/Entity/Article.php

@@ -79,6 +79,9 @@ class Article
     #[ORM\Column(type: Types::INTEGER, nullable: true)]
     private ?int $ratingPositive = null;
 
+    #[ORM\Column(type: Types::JSON, nullable: true)]
+    private ?array $advancedMetadata = null;
+
     public function getId(): null|int|string
     {
         return $this->id;
@@ -337,4 +340,15 @@ class Article
     {
         $this->raw = $raw;
     }
+
+    public function getAdvancedMetadata(): ?array
+    {
+        return $this->advancedMetadata;
+    }
+
+    public function setAdvancedMetadata(?array $advancedMetadata): static
+    {
+        $this->advancedMetadata = $advancedMetadata;
+        return $this;
+    }
 }

src/Form/AdvancedMetadataType.php

@@ -0,0 +1,106 @@
+<?php
+
+declare(strict_types=1);
+
+namespace App\Form;
+
+use App\Dto\AdvancedMetadata;
+use Symfony\Component\Form\AbstractType;
+use Symfony\Component\Form\Extension\Core\Type\CheckboxType;
+use Symfony\Component\Form\Extension\Core\Type\ChoiceType;
+use Symfony\Component\Form\Extension\Core\Type\CollectionType;
+use Symfony\Component\Form\Extension\Core\Type\DateTimeType;
+use Symfony\Component\Form\Extension\Core\Type\TextType;
+use Symfony\Component\Form\FormBuilderInterface;
+use Symfony\Component\OptionsResolver\OptionsResolver;
+
+class AdvancedMetadataType extends AbstractType
+{
+    public function buildForm(FormBuilderInterface $builder, array $options): void
+    {
+        $builder
+            ->add('doNotRepublish', CheckboxType::class, [
+                'label' => 'Do not republish',
+                'required' => false,
+                'help' => 'Mark this article with a policy label indicating it should not be republished',
+                'row_attr' => ['class' => 'form-check'],
+                'label_attr' => ['class' => 'form-check-label'],
+                'attr' => ['class' => 'form-check-input'],
+            ])
+            ->add('license', ChoiceType::class, [
+                'label' => 'License',
+                'required' => false,
+                'choices' => [
+                    'No license' => '',
+                    'Public Domain (CC0)' => 'CC0-1.0',
+                    'Attribution (CC-BY)' => 'CC-BY-4.0',
+                    'Attribution-ShareAlike (CC-BY-SA)' => 'CC-BY-SA-4.0',
+                    'Attribution-NonCommercial (CC-BY-NC)' => 'CC-BY-NC-4.0',
+                    'Attribution-NonCommercial-ShareAlike (CC-BY-NC-SA)' => 'CC-BY-NC-SA-4.0',
+                    'Attribution-NoDerivs (CC-BY-ND)' => 'CC-BY-ND-4.0',
+                    'Attribution-NonCommercial-NoDerivs (CC-BY-NC-ND)' => 'CC-BY-NC-ND-4.0',
+                    'MIT License' => 'MIT',
+                    'Apache License 2.0' => 'Apache-2.0',
+                    'GNU GPL v3' => 'GPL-3.0',
+                    'GNU AGPL v3' => 'AGPL-3.0',
+                    'All rights reserved' => 'All rights reserved',
+                    'Custom license' => 'custom',
+                ],
+                'attr' => ['class' => 'form-select'],
+            ])
+            ->add('customLicense', TextType::class, [
+                'label' => 'Custom license identifier',
+                'required' => false,
+                'attr' => [
+                    'class' => 'form-control',
+                    'placeholder' => 'e.g., My-Custom-License-1.0'
+                ],
+                'help' => 'Specify a custom SPDX identifier or license name',
+            ])
+            ->add('zapSplits', CollectionType::class, [
+                'entry_type' => ZapSplitType::class,
+                'allow_add' => true,
+                'allow_delete' => true,
+                'by_reference' => false,
+                'label' => 'Zap splits',
+                'required' => false,
+                'attr' => [
+                    'class' => 'zap-splits-collection',
+                ],
+                'help' => 'Configure multiple recipients for zaps (tips). Leave weights empty for equal distribution.',
+            ])
+            ->add('contentWarning', TextType::class, [
+                'label' => 'Content warning',
+                'required' => false,
+                'attr' => [
+                    'class' => 'form-control',
+                    'placeholder' => 'e.g., graphic content, spoilers, etc.'
+                ],
+                'help' => 'Optional warning about sensitive content',
+            ])
+            ->add('expirationTimestamp', DateTimeType::class, [
+                'label' => 'Expiration date',
+                'required' => false,
+                'widget' => 'single_text',
+                'input' => 'timestamp',
+                'attr' => ['class' => 'form-control'],
+                'help' => 'When this article should expire (optional)',
+            ])
+            ->add('isProtected', CheckboxType::class, [
+                'label' => 'Protected event',
+                'required' => false,
+                'help' => 'Mark this event as protected. Warning: Some relays may reject protected events.',
+                'row_attr' => ['class' => 'form-check'],
+                'label_attr' => ['class' => 'form-check-label'],
+                'attr' => ['class' => 'form-check-input'],
+            ]);
+    }
+
+    public function configureOptions(OptionsResolver $resolver): void
+    {
+        $resolver->setDefaults([
+            'data_class' => AdvancedMetadata::class,
+        ]);
+    }
+}
+

src/Form/EditorType.php

@@ -4,6 +4,7 @@ declare(strict_types=1);
 
 namespace App\Form;
 
+use App\Dto\AdvancedMetadata;
 use App\Entity\Article;
 use App\Form\DataTransformer\CommaSeparatedToJsonTransformer;
 use App\Form\DataTransformer\HtmlToMdTransformer;
@@ -55,6 +56,10 @@ class EditorType extends AbstractType
             ->add('isDraft', CheckboxType::class, [
                 'label'    => 'Save as draft',
                 'required' => false,
+            ])
+            ->add('advancedMetadata', AdvancedMetadataType::class, [
+                'label' => 'Advanced metadata',
+                'required' => false,
                 'mapped' => false,
             ]);
 

src/Form/ZapSplitType.php

@@ -0,0 +1,66 @@
+<?php
+
+declare(strict_types=1);
+
+namespace App\Form;
+
+use App\Dto\ZapSplit;
+use Symfony\Component\Form\AbstractType;
+use Symfony\Component\Form\Extension\Core\Type\IntegerType;
+use Symfony\Component\Form\Extension\Core\Type\TextType;
+use Symfony\Component\Form\FormBuilderInterface;
+use Symfony\Component\OptionsResolver\OptionsResolver;
+use Symfony\Component\Validator\Constraints as Assert;
+
+class ZapSplitType extends AbstractType
+{
+    public function buildForm(FormBuilderInterface $builder, array $options): void
+    {
+        $builder
+            ->add('recipient', TextType::class, [
+                'label' => 'Recipient',
+                'required' => true,
+                'attr' => [
+                    'class' => 'form-control zap-recipient',
+                    'placeholder' => 'npub1... or hex pubkey'
+                ],
+                'constraints' => [
+                    new Assert\NotBlank(['message' => 'Recipient is required']),
+                ],
+            ])
+            ->add('relay', TextType::class, [
+                'label' => 'Relay hint',
+                'required' => false,
+                'attr' => [
+                    'class' => 'form-control zap-relay',
+                    'placeholder' => 'wss://relay.example.com'
+                ],
+                'constraints' => [
+                    new Assert\Regex([
+                        'pattern' => '/^wss:\/\/.+/',
+                        'message' => 'Relay must be a valid WebSocket URL starting with wss://'
+                    ]),
+                ],
+            ])
+            ->add('weight', IntegerType::class, [
+                'label' => 'Weight',
+                'required' => false,
+                'attr' => [
+                    'class' => 'form-control zap-weight',
+                    'placeholder' => '1',
+                    'min' => 0
+                ],
+                'constraints' => [
+                    new Assert\PositiveOrZero(['message' => 'Weight must be 0 or greater']),
+                ],
+            ]);
+    }
+
+    public function configureOptions(OptionsResolver $resolver): void
+    {
+        $resolver->setDefaults([
+            'data_class' => ZapSplit::class,
+        ]);
+    }
+}
+

src/Service/Nostr/NostrEventBuilder.php

@@ -0,0 +1,192 @@
+<?php
+
+declare(strict_types=1);
+
+namespace App\Service\Nostr;
+
+use App\Dto\AdvancedMetadata;
+use App\Dto\ZapSplit;
+use App\Entity\Article;
+use nostriphant\NIP19\Bech32;
+use swentel\nostr\Key\Key;
+
+class NostrEventBuilder
+{
+    private Key $key;
+
+    public function __construct()
+    {
+        $this->key = new Key();
+    }
+
+    /**
+     * Build tags array from Article and AdvancedMetadata
+     *
+     * @param Article $article
+     * @param AdvancedMetadata|null $metadata
+     * @param array $formData Additional form data (isDraft, addClientTag, etc.)
+     * @return array
+     */
+    public function buildTags(Article $article, ?AdvancedMetadata $metadata, array $formData = []): array
+    {
+        $tags = [];
+
+        // Base NIP-23 tags
+        $tags[] = ['d', $article->getSlug() ?? ''];
+        $tags[] = ['title', $article->getTitle() ?? ''];
+        $tags[] = ['published_at', (string)($article->getPublishedAt()?->getTimestamp() ?? time())];
+
+        if ($article->getSummary()) {
+            $tags[] = ['summary', $article->getSummary()];
+        }
+
+        if ($article->getImage()) {
+            $tags[] = ['image', $article->getImage()];
+        }
+
+        // Topic tags
+        if ($article->getTopics()) {
+            foreach ($article->getTopics() as $topic) {
+                $cleanTopic = str_replace('#', '', $topic);
+                $tags[] = ['t', $cleanTopic];
+            }
+        }
+
+        // Client tag
+        if ($formData['addClientTag'] ?? false) {
+            $tags[] = ['client', 'Decent Newsroom'];
+        }
+
+        // Advanced metadata tags
+        if ($metadata) {
+            $tags = array_merge($tags, $this->buildAdvancedTags($metadata));
+        }
+
+        return $tags;
+    }
+
+    /**
+     * Build advanced metadata tags
+     */
+    private function buildAdvancedTags(AdvancedMetadata $metadata): array
+    {
+        $tags = [];
+
+        // Policy: Do not republish
+        if ($metadata->doNotRepublish) {
+            $tags[] = ['L', 'rights.decent.newsroom'];
+            $tags[] = ['l', 'no-republish', 'rights.decent.newsroom'];
+        }
+
+        // License
+        $license = $metadata->getLicenseValue();
+        if ($license && $license !== 'All rights reserved') {
+            $tags[] = ['L', 'spdx.org/licenses'];
+            $tags[] = ['l', $license, 'spdx.org/licenses'];
+        } elseif ($license === 'All rights reserved') {
+            $tags[] = ['L', 'rights.decent.newsroom'];
+            $tags[] = ['l', 'all-rights-reserved', 'rights.decent.newsroom'];
+        }
+
+        // Zap splits
+        foreach ($metadata->zapSplits as $split) {
+            $zapTag = ['zap', $this->convertToHex($split->recipient)];
+
+            if ($split->relay) {
+                $zapTag[] = $split->relay;
+            } else {
+                $zapTag[] = '';
+            }
+
+            if ($split->weight !== null) {
+                $zapTag[] = (string)$split->weight;
+            }
+
+            $tags[] = $zapTag;
+        }
+
+        // Content warning
+        if ($metadata->contentWarning) {
+            $tags[] = ['content-warning', $metadata->contentWarning];
+        }
+
+        // Expiration
+        if ($metadata->expirationTimestamp) {
+            $tags[] = ['expiration', (string)$metadata->expirationTimestamp];
+        }
+
+        // Protected event
+        if ($metadata->isProtected) {
+            $tags[] = ['-'];
+        }
+
+        // Extra tags (passthrough)
+        foreach ($metadata->extraTags as $tag) {
+            if (is_array($tag)) {
+                $tags[] = $tag;
+            }
+        }
+
+        return $tags;
+    }
+
+    /**
+     * Convert npub or hex to hex pubkey
+     */
+    public function convertToHex(string $pubkey): string
+    {
+        if (str_starts_with($pubkey, 'npub1')) {
+            try {
+                return $this->key->convertToHex($pubkey);
+            } catch (\Exception $e) {
+                throw new \InvalidArgumentException('Invalid npub format: ' . $e->getMessage());
+            }
+        }
+
+        // Validate hex format
+        if (!preg_match('/^[0-9a-f]{64}$/i', $pubkey)) {
+            throw new \InvalidArgumentException('Invalid pubkey format. Must be hex (64 chars) or npub');
+        }
+
+        return strtolower($pubkey);
+    }
+
+    /**
+     * Calculate share percentages for zap splits
+     *
+     * @param ZapSplit[] $splits
+     * @return array Array of percentages indexed by split position
+     */
+    public function calculateShares(array $splits): array
+    {
+        if (empty($splits)) {
+            return [];
+        }
+
+        $hasWeights = false;
+        $totalWeight = 0;
+
+        foreach ($splits as $split) {
+            if ($split->weight !== null && $split->weight > 0) {
+                $hasWeights = true;
+                $totalWeight += $split->weight;
+            }
+        }
+
+        // If no weights specified, equal distribution
+        if (!$hasWeights) {
+            $equalShare = 100.0 / count($splits);
+            return array_fill(0, count($splits), $equalShare);
+        }
+
+        // Calculate weighted shares
+        $shares = [];
+        foreach ($splits as $split) {
+            $weight = $split->weight ?? 0;
+            $shares[] = $totalWeight > 0 ? ($weight / $totalWeight) * 100 : 0;
+        }
+
+        return $shares;
+    }
+}
+

src/Service/Nostr/NostrEventParser.php

@@ -0,0 +1,188 @@
+<?php
+
+declare(strict_types=1);
+
+namespace App\Service\Nostr;
+
+use App\Dto\AdvancedMetadata;
+use App\Dto\ZapSplit;
+use swentel\nostr\Key\Key;
+
+class NostrEventParser
+{
+    private Key $key;
+
+    public function __construct()
+    {
+        $this->key = new Key();
+    }
+
+    /**
+     * Parse tags from a Nostr event into AdvancedMetadata DTO
+     *
+     * @param array $tags The tags array from the Nostr event
+     * @return AdvancedMetadata
+     */
+    public function parseAdvancedMetadata(array $tags): AdvancedMetadata
+    {
+        $metadata = new AdvancedMetadata();
+        $knownTags = ['d', 'title', 'summary', 'image', 'published_at', 't', 'client'];
+        $processedAdvancedTags = [];
+
+        foreach ($tags as $tag) {
+            if (!is_array($tag) || empty($tag)) {
+                continue;
+            }
+
+            $tagName = $tag[0] ?? '';
+
+            switch ($tagName) {
+                case 'L':
+                    // Label namespace - just track it, process with 'l' tags
+                    break;
+
+                case 'l':
+                    $this->parseLabel($tag, $metadata);
+                    $processedAdvancedTags[] = $tag;
+                    break;
+
+                case 'zap':
+                    $split = $this->parseZapTag($tag);
+                    if ($split) {
+                        $metadata->addZapSplit($split);
+                        $processedAdvancedTags[] = $tag;
+                    }
+                    break;
+
+                case 'content-warning':
+                    $metadata->contentWarning = $tag[1] ?? '';
+                    $processedAdvancedTags[] = $tag;
+                    break;
+
+                case 'expiration':
+                    $timestamp = (int)($tag[1] ?? 0);
+                    if ($timestamp > 0) {
+                        $metadata->expirationTimestamp = $timestamp;
+                    }
+                    $processedAdvancedTags[] = $tag;
+                    break;
+
+                case '-':
+                    $metadata->isProtected = true;
+                    $processedAdvancedTags[] = $tag;
+                    break;
+
+                default:
+                    // Preserve unknown tags for passthrough
+                    if (!in_array($tagName, $knownTags, true)) {
+                        $metadata->extraTags[] = $tag;
+                    }
+                    break;
+            }
+        }
+
+        return $metadata;
+    }
+
+    /**
+     * Parse a label tag (NIP-32)
+     */
+    private function parseLabel(array $tag, AdvancedMetadata $metadata): void
+    {
+        $label = $tag[1] ?? '';
+        $namespace = $tag[2] ?? '';
+
+        if ($namespace === 'rights.decent.newsroom') {
+            if ($label === 'no-republish') {
+                $metadata->doNotRepublish = true;
+            } elseif ($label === 'all-rights-reserved') {
+                $metadata->license = 'All rights reserved';
+            }
+        } elseif ($namespace === 'spdx.org/licenses') {
+            $metadata->license = $label;
+        }
+    }
+
+    /**
+     * Parse a zap split tag
+     *
+     * Format: ["zap", <hex-pubkey>, <relay>, <weight>]
+     * Relay and weight are optional
+     */
+    private function parseZapTag(array $tag): ?ZapSplit
+    {
+        if (count($tag) < 2) {
+            return null;
+        }
+
+        $pubkeyHex = $tag[1] ?? '';
+        if (empty($pubkeyHex)) {
+            return null;
+        }
+
+        // Convert hex to npub for display (more user-friendly)
+        try {
+            $npub = $this->key->convertPublicKeyToBech32($pubkeyHex);
+        } catch (\Exception $e) {
+            // If conversion fails, use hex
+            $npub = $pubkeyHex;
+        }
+
+        $relay = $tag[2] ?? null;
+        if ($relay === '') {
+            $relay = null;
+        }
+
+        $weight = isset($tag[3]) && $tag[3] !== '' ? (int)$tag[3] : null;
+
+        return new ZapSplit($npub, $relay, $weight);
+    }
+
+    /**
+     * Extract basic article data from tags
+     */
+    public function extractArticleData(array $tags): array
+    {
+        $data = [
+            'slug' => '',
+            'title' => '',
+            'summary' => '',
+            'image' => '',
+            'topics' => [],
+            'publishedAt' => null,
+        ];
+
+        foreach ($tags as $tag) {
+            if (!is_array($tag) || count($tag) < 2) {
+                continue;
+            }
+
+            switch ($tag[0]) {
+                case 'd':
+                    $data['slug'] = $tag[1];
+                    break;
+                case 'title':
+                    $data['title'] = $tag[1];
+                    break;
+                case 'summary':
+                    $data['summary'] = $tag[1];
+                    break;
+                case 'image':
+                    $data['image'] = $tag[1];
+                    break;
+                case 't':
+                    $data['topics'][] = $tag[1];
+                    break;
+                case 'published_at':
+                    $timestamp = (int)$tag[1];
+                    if ($timestamp > 0) {
+                        $data['publishedAt'] = new \DateTimeImmutable('@' . $timestamp);
+                    }
+                    break;
+            }
+        }
+
+        return $data;
+    }
+}
+

symfony.lock

@@ -282,6 +282,18 @@
             "config/packages/twig_component.yaml"
         ]
     },
+    "symfony/validator": {
+        "version": "7.2",
+        "recipe": {
+            "repo": "github.com/symfony/recipes",
+            "branch": "main",
+            "version": "7.0",
+            "ref": "8c1c4e28d26a124b0bb273f537ca8ce443472bfd"
+        },
+        "files": [
+            "config/packages/validator.yaml"
+        ]
+    },
     "symfony/web-profiler-bundle": {
         "version": "7.1",
         "recipe": {

templates/pages/_advanced_metadata.html.twig

@@ -0,0 +1,115 @@
+{% block _editor_advancedMetadata_widget %}
+    <div class="advanced-metadata-section" {{ stimulus_controller('advanced-metadata') }}>
+        <details class="mb-4">
+            <summary class="h5 cursor-pointer">Zap splits and content warning</summary>
+            <div class="mt-2 p-3 border rounded">
+                <div class="row hidden">
+                    <div class="col-md-6">
+                        {{ form_row(form.doNotRepublish) }}
+                    </div>
+                    <div class="col-md-6">
+                        {{ form_row(form.license, {
+                            'attr': {
+                                'data-advanced-metadata-target': 'licenseSelect',
+                                'data-action': 'change->advanced-metadata#licenseChanged'
+                            }
+                        }) }}
+                    </div>
+                </div>
+
+                <div class="row hidden">
+                    <div class="col-md-12">
+                        {{ form_row(form.customLicense, {
+                            'attr': {
+                                'data-advanced-metadata-target': 'customLicenseInput'
+                            }
+                        }) }}
+                    </div>
+                </div>
+
+
+                <h6>Zap Splits</h6>
+                <p class="text-muted small">Configure multiple recipients for zaps (tips). Weights determine the split ratio.</p>
+
+                <div data-advanced-metadata-target="zapSplitsContainer"
+                     data-prototype="{{ form_widget(form.zapSplits.vars.prototype)|e('html_attr') }}"
+                     data-index="{{ form.zapSplits|length }}">
+                    {% for zapSplit in form.zapSplits %}
+                        <div class="zap-split-item mb-3 p-3 border rounded" data-index="{{ loop.index0 }}">
+                            <div class="row">
+                                <div class="col-md-5">
+                                    {{ form_row(zapSplit.recipient) }}
+                                </div>
+                                <div class="col-md-4">
+                                    {{ form_row(zapSplit.relay) }}
+                                </div>
+                                <div class="col-md-3">
+                                    {{ form_row(zapSplit.weight) }}
+                                </div>
+                            </div>
+                            <button type="button"
+                                    class="btn btn-sm btn-danger mt-2"
+                                    data-action="click->advanced-metadata#removeZapSplit"
+                                    data-index="{{ loop.index0 }}">
+                                Remove
+                            </button>
+                            <div class="zap-share-display mt-2 text-muted">
+                                <small>Share: <span class="share-percent">0</span>%</small>
+                            </div>
+                        </div>
+                    {% endfor %}
+                </div>
+
+                <div class="mb-3">
+                    <button type="button"
+                            class="btn btn-sm btn-secondary"
+                            data-advanced-metadata-target="addZapButton"
+                            data-action="click->advanced-metadata#addZapSplit">
+                        Add Zap Recipient
+                    </button>
+                    <button type="button"
+                            class="btn btn-sm btn-outline-secondary"
+                            data-advanced-metadata-target="distributeEquallyButton"
+                            data-action="click->advanced-metadata#distributeEqually">
+                        Distribute Equally
+                    </button>
+                </div>
+
+                <hr class="my-4">
+
+                <div class="row">
+                    <div class="col-md-6">
+                        {{ form_row(form.contentWarning) }}
+                    </div>
+                </div>
+                <div class="row hidden">
+                    <div class="col-md-6">
+                        {{ form_row(form.expirationTimestamp, {
+                            'attr': {
+                                'data-advanced-metadata-target': 'expirationInput',
+                                'data-action': 'change->advanced-metadata#expirationChanged'
+                            }
+                        }) }}
+                    </div>
+                </div>
+
+                <div class="row hidden">
+                    <div class="col-md-12">
+                        {{ form_row(form.isProtected, {
+                            'attr': {
+                                'data-advanced-metadata-target': 'protectedCheckbox',
+                                'data-action': 'change->advanced-metadata#protectedChanged'
+                            }
+                        }) }}
+                        <div class="alert alert-warning mt-2"
+                             style="display: none;"
+                             data-advanced-metadata-target="protectedWarning">
+                            <small><strong>Warning:</strong> Some relays may reject protected events. Use with caution.</small>
+                        </div>
+                    </div>
+                </div>
+            </div>
+        </details>
+    </div>
+{% endblock %}
+

templates/pages/editor.html.twig

@@ -1,14 +1,15 @@
 {% extends 'layout.html.twig' %}
 
-{% form_theme form _self %}
+{% form_theme form _self 'pages/_advanced_metadata.html.twig' %}
 
 {% block quill_widget %}
     <div {{ stimulus_controller('quill') }} class="quill" data-id="{{ id }}" >
         <div id="editor">
             {{ value|raw }}
         </div>
-    </div>
+        <input type="hidden" name="editor[content_md]" data-quill-target="markdown">
         <input type="hidden" {{ block('widget_attributes') }} value="{{ value }}" />
+    </div>
 {% endblock %}
 
 {% block body %}
@@ -83,6 +84,8 @@
                     'attr': {'class': 'form-check-input'}
                 }) }}
 
+                {{ form_row(form.advancedMetadata) }}
+
                 <div class="actions">
                     <button type="button"
                             class="btn btn-primary"

templates/pages/highlights.html.twig

@@ -2,7 +2,7 @@
 
 {% block body %}
     <twig:Atoms:PageHeading
-        heading="Article Highlights"
+        heading="Highlights"
         tagline="Noteworthy passages highlighted by the community"
     />