v0.3.0 - Complete deployment documentation and examples - Added comprehensive deployment guide, automated deployment scripts, nginx SSL proxy setup, backup automation, and monitoring tools. Includes VPS deployment, cloud platform guides, and practical examples for production deployment of event-based configuration system.

src/sql_schema.h

@@ -1,6 +1,6 @@
 /* Embedded SQL Schema for C Nostr Relay
  * Generated from db/schema.sql - Do not edit manually
- * Schema Version: 3
+ * Schema Version: 4
  */
 #ifndef SQL_SCHEMA_H
 #define SQL_SCHEMA_H
@@ -12,6 +12,7 @@
 static const char* const EMBEDDED_SCHEMA_SQL = 
 "-- C Nostr Relay Database Schema\n\
 -- SQLite schema for storing Nostr events with JSON tags support\n\
+-- Event-based configuration system using kind 33334 Nostr events\n\
 \n\
 -- Schema version tracking\n\
 PRAGMA user_version = 4;\n\
@@ -57,8 +58,8 @@ CREATE TABLE schema_info (\n\
 \n\
 -- Insert schema metadata\n\
 INSERT INTO schema_info (key, value) VALUES\n\
-    ('version', '3'),\n\
-    ('description', 'Hybrid single-table Nostr relay schema with JSON tags and configuration management'),\n\
+    ('version', '4'),\n\
+    ('description', 'Event-based Nostr relay schema with kind 33334 configuration events'),\n\
     ('created_at', strftime('%s', 'now'));\n\
 \n\
 -- Helper views for common queries\n\
@@ -79,6 +80,19 @@ SELECT \n\
 FROM events\n\
 GROUP BY event_type;\n\
 \n\
+-- Configuration events view (kind 33334)\n\
+CREATE VIEW configuration_events AS\n\
+SELECT \n\
+    id,\n\
+    pubkey as admin_pubkey,\n\
+    created_at,\n\
+    content,\n\
+    tags,\n\
+    sig\n\
+FROM events\n\
+WHERE kind = 33334\n\
+ORDER BY created_at DESC;\n\
+\n\
 -- Optimization: Trigger for automatic cleanup of ephemeral events older than 1 hour\n\
 CREATE TRIGGER cleanup_ephemeral_events\n\
     AFTER INSERT ON events\n\
@@ -101,6 +115,19 @@ BEGIN\n\
     AND id != NEW.id;\n\
 END;\n\
 \n\
+-- Addressable event handling trigger (for kind 33334 configuration events)\n\
+CREATE TRIGGER handle_addressable_events\n\
+    AFTER INSERT ON events\n\
+    WHEN NEW.event_type = 'addressable'\n\
+BEGIN\n\
+    -- For kind 33334 (configuration), replace previous config from same admin\n\
+    DELETE FROM events \n\
+    WHERE pubkey = NEW.pubkey \n\
+    AND kind = NEW.kind \n\
+    AND event_type = 'addressable'\n\
+    AND id != NEW.id;\n\
+END;\n\
+\n\
 -- Persistent Subscriptions Logging Tables (Phase 2)\n\
 -- Optional database logging for subscription analytics and debugging\n\
 \n\
@@ -190,110 +217,6 @@ WHERE event_type = 'created'\n\
 AND subscription_id NOT IN (\n\
     SELECT subscription_id FROM subscription_events\n\
     WHERE event_type IN ('closed', 'expired', 'disconnected')\n\
-);\n\
-\n\
--- ================================\n\
--- CONFIGURATION MANAGEMENT TABLES\n\
--- ================================\n\
-\n\
--- Core server configuration table\n\
-CREATE TABLE config (\n\
-    key TEXT PRIMARY KEY,                    -- Configuration key (unique identifier)\n\
-    value TEXT NOT NULL,                     -- Configuration value (stored as string)\n\
-    description TEXT,                        -- Human-readable description\n\
-    config_type TEXT DEFAULT 'user' CHECK (config_type IN ('system', 'user', 'runtime')),\n\
-    data_type TEXT DEFAULT 'string' CHECK (data_type IN ('string', 'integer', 'boolean', 'json')),\n\
-    validation_rules TEXT,                   -- JSON validation rules (optional)\n\
-    is_sensitive INTEGER DEFAULT 0,          -- 1 if value should be masked in logs\n\
-    requires_restart INTEGER DEFAULT 0,      -- 1 if change requires server restart\n\
-    created_at INTEGER NOT NULL DEFAULT (strftime('%s', 'now')),\n\
-    updated_at INTEGER NOT NULL DEFAULT (strftime('%s', 'now'))\n\
-);\n\
-\n\
--- Configuration change history table\n\
-CREATE TABLE config_history (\n\
-    id INTEGER PRIMARY KEY AUTOINCREMENT,\n\
-    config_key TEXT NOT NULL,               -- Key that was changed\n\
-    old_value TEXT,                         -- Previous value (NULL for new keys)\n\
-    new_value TEXT NOT NULL,                -- New value\n\
-    changed_by TEXT DEFAULT 'system',       -- Who made the change (system/admin/user)\n\
-    change_reason TEXT,                     -- Optional reason for change\n\
-    changed_at INTEGER NOT NULL DEFAULT (strftime('%s', 'now')),\n\
-    FOREIGN KEY (config_key) REFERENCES config(key)\n\
-);\n\
-\n\
--- Configuration validation errors log\n\
-CREATE TABLE config_validation_log (\n\
-    id INTEGER PRIMARY KEY AUTOINCREMENT,\n\
-    config_key TEXT NOT NULL,\n\
-    attempted_value TEXT,\n\
-    validation_error TEXT NOT NULL,\n\
-    error_source TEXT DEFAULT 'validation',  -- validation/parsing/constraint\n\
-    attempted_at INTEGER NOT NULL DEFAULT (strftime('%s', 'now'))\n\
-);\n\
-\n\
--- Cache for file-based configuration events\n\
-CREATE TABLE config_file_cache (\n\
-    file_path TEXT PRIMARY KEY,             -- Full path to config file\n\
-    file_hash TEXT NOT NULL,                -- SHA256 hash of file content\n\
-    event_id TEXT,                          -- Nostr event ID from file\n\
-    event_pubkey TEXT,                      -- Admin pubkey that signed event\n\
-    loaded_at INTEGER NOT NULL DEFAULT (strftime('%s', 'now')),\n\
-    validation_status TEXT CHECK (validation_status IN ('valid', 'invalid', 'unverified')),\n\
-    validation_error TEXT                   -- Error details if invalid\n\
-);\n\
-\n\
--- Performance indexes for configuration tables\n\
-CREATE INDEX idx_config_type ON config(config_type);\n\
-CREATE INDEX idx_config_updated ON config(updated_at DESC);\n\
-CREATE INDEX idx_config_history_key ON config_history(config_key);\n\
-CREATE INDEX idx_config_history_time ON config_history(changed_at DESC);\n\
-CREATE INDEX idx_config_validation_key ON config_validation_log(config_key);\n\
-CREATE INDEX idx_config_validation_time ON config_validation_log(attempted_at DESC);\n\
-\n\
--- Trigger to update timestamp on configuration changes\n\
-CREATE TRIGGER update_config_timestamp\n\
-    AFTER UPDATE ON config\n\
-BEGIN\n\
-    UPDATE config SET updated_at = strftime('%s', 'now') WHERE key = NEW.key;\n\
-END;\n\
-\n\
--- Trigger to log configuration changes to history\n\
-CREATE TRIGGER log_config_changes\n\
-    AFTER UPDATE ON config\n\
-    WHEN OLD.value != NEW.value\n\
-BEGIN\n\
-    INSERT INTO config_history (config_key, old_value, new_value, changed_by, change_reason)\n\
-    VALUES (NEW.key, OLD.value, NEW.value, 'system', 'configuration update');\n\
-END;\n\
-\n\
--- Runtime Statistics View\n\
-CREATE VIEW runtime_stats AS\n\
-SELECT\n\
-    key,\n\
-    value,\n\
-    description,\n\
-    updated_at\n\
-FROM config\n\
-WHERE config_type = 'runtime'\n\
-ORDER BY key;\n\
-\n\
--- Configuration Change Summary\n\
-CREATE VIEW recent_config_changes AS\n\
-SELECT\n\
-    ch.config_key,\n\
-    sc.description,\n\
-    ch.old_value,\n\
-    ch.new_value,\n\
-    ch.changed_by,\n\
-    ch.change_reason,\n\
-    ch.changed_at\n\
-FROM config_history ch\n\
-JOIN config sc ON ch.config_key = sc.key\n\
-ORDER BY ch.changed_at DESC\n\
-LIMIT 50;\n\
-\n\
--- Runtime Statistics (initialized by server on startup)\n\
--- These will be populated when configuration system initializes";
+);";
 
 #endif /* SQL_SCHEMA_H */