v0.2.2 - Working on config setup

db/schema.sql

@@ -2,7 +2,7 @@
 -- SQLite schema for storing Nostr events with JSON tags support
 
 -- Schema version tracking
-PRAGMA user_version = 2;
+PRAGMA user_version = 3;
 
 -- Enable foreign key support
 PRAGMA foreign_keys = ON;
@@ -44,9 +44,9 @@ CREATE TABLE schema_info (
 );
 
 -- Insert schema metadata
-INSERT INTO schema_info (key, value) VALUES 
-    ('version', '2'),
-    ('description', 'Hybrid single-table Nostr relay schema with JSON tags'),
+INSERT INTO schema_info (key, value) VALUES
+    ('version', '3'),
+    ('description', 'Hybrid single-table Nostr relay schema with JSON tags and configuration management'),
     ('created_at', strftime('%s', 'now'));
 
 -- Helper views for common queries
@@ -178,4 +178,122 @@ WHERE event_type = 'created'
 AND subscription_id NOT IN (
     SELECT subscription_id FROM subscription_events
     WHERE event_type IN ('closed', 'expired', 'disconnected')
-);
+);
+
+-- ================================
+-- CONFIGURATION MANAGEMENT TABLES
+-- ================================
+
+-- Core server configuration table
+CREATE TABLE server_config (
+    key TEXT PRIMARY KEY,                    -- Configuration key (unique identifier)
+    value TEXT NOT NULL,                     -- Configuration value (stored as string)
+    description TEXT,                        -- Human-readable description
+    config_type TEXT DEFAULT 'user' CHECK (config_type IN ('system', 'user', 'runtime')),
+    data_type TEXT DEFAULT 'string' CHECK (data_type IN ('string', 'integer', 'boolean', 'json')),
+    validation_rules TEXT,                   -- JSON validation rules (optional)
+    is_sensitive INTEGER DEFAULT 0,          -- 1 if value should be masked in logs
+    requires_restart INTEGER DEFAULT 0,      -- 1 if change requires server restart
+    created_at INTEGER NOT NULL DEFAULT (strftime('%s', 'now')),
+    updated_at INTEGER NOT NULL DEFAULT (strftime('%s', 'now'))
+);
+
+-- Configuration change history table
+CREATE TABLE config_history (
+    id INTEGER PRIMARY KEY AUTOINCREMENT,
+    config_key TEXT NOT NULL,               -- Key that was changed
+    old_value TEXT,                         -- Previous value (NULL for new keys)
+    new_value TEXT NOT NULL,                -- New value
+    changed_by TEXT DEFAULT 'system',       -- Who made the change (system/admin/user)
+    change_reason TEXT,                     -- Optional reason for change
+    changed_at INTEGER NOT NULL DEFAULT (strftime('%s', 'now')),
+    FOREIGN KEY (config_key) REFERENCES server_config(key)
+);
+
+-- Configuration validation errors log
+CREATE TABLE config_validation_log (
+    id INTEGER PRIMARY KEY AUTOINCREMENT,
+    config_key TEXT NOT NULL,
+    attempted_value TEXT,
+    validation_error TEXT NOT NULL,
+    error_source TEXT DEFAULT 'validation',  -- validation/parsing/constraint
+    attempted_at INTEGER NOT NULL DEFAULT (strftime('%s', 'now'))
+);
+
+-- Cache for file-based configuration events
+CREATE TABLE config_file_cache (
+    file_path TEXT PRIMARY KEY,             -- Full path to config file
+    file_hash TEXT NOT NULL,                -- SHA256 hash of file content
+    event_id TEXT,                          -- Nostr event ID from file
+    event_pubkey TEXT,                      -- Admin pubkey that signed event
+    loaded_at INTEGER NOT NULL DEFAULT (strftime('%s', 'now')),
+    validation_status TEXT CHECK (validation_status IN ('valid', 'invalid', 'unverified')),
+    validation_error TEXT                   -- Error details if invalid
+);
+
+-- Performance indexes for configuration tables
+CREATE INDEX idx_server_config_type ON server_config(config_type);
+CREATE INDEX idx_server_config_updated ON server_config(updated_at DESC);
+CREATE INDEX idx_config_history_key ON config_history(config_key);
+CREATE INDEX idx_config_history_time ON config_history(changed_at DESC);
+CREATE INDEX idx_config_validation_key ON config_validation_log(config_key);
+CREATE INDEX idx_config_validation_time ON config_validation_log(attempted_at DESC);
+
+-- Trigger to update timestamp on configuration changes
+CREATE TRIGGER update_config_timestamp
+    AFTER UPDATE ON server_config
+BEGIN
+    UPDATE server_config SET updated_at = strftime('%s', 'now') WHERE key = NEW.key;
+END;
+
+-- Trigger to log configuration changes to history
+CREATE TRIGGER log_config_changes
+    AFTER UPDATE ON server_config
+    WHEN OLD.value != NEW.value
+BEGIN
+    INSERT INTO config_history (config_key, old_value, new_value, changed_by, change_reason)
+    VALUES (NEW.key, OLD.value, NEW.value, 'system', 'configuration update');
+END;
+
+-- Active Configuration View
+CREATE VIEW active_config AS
+SELECT
+    key,
+    value,
+    description,
+    config_type,
+    data_type,
+    requires_restart,
+    updated_at
+FROM server_config
+WHERE config_type IN ('system', 'user')
+ORDER BY config_type, key;
+
+-- Runtime Statistics View
+CREATE VIEW runtime_stats AS
+SELECT
+    key,
+    value,
+    description,
+    updated_at
+FROM server_config
+WHERE config_type = 'runtime'
+ORDER BY key;
+
+-- Configuration Change Summary
+CREATE VIEW recent_config_changes AS
+SELECT
+    ch.config_key,
+    sc.description,
+    ch.old_value,
+    ch.new_value,
+    ch.changed_by,
+    ch.change_reason,
+    ch.changed_at
+FROM config_history ch
+JOIN server_config sc ON ch.config_key = sc.key
+ORDER BY ch.changed_at DESC
+LIMIT 50;
+
+-- Runtime Statistics (initialized by server on startup)
+-- These will be populated when configuration system initializes