-- Create system_config table to track system-wide settings
CREATE TABLE system_config (
    id UUID PRIMARY KEY DEFAULT gen_random_uuid(),
    key VARCHAR(255) NOT NULL UNIQUE,
    value TEXT NOT NULL,
    description TEXT,
    created_at TIMESTAMPTZ DEFAULT NOW(),
    updated_at TIMESTAMPTZ DEFAULT NOW()
);

-- Create index on key for faster lookups
CREATE INDEX idx_system_config_key ON system_config(key);

-- Create trigger to automatically update updated_at
CREATE TRIGGER update_system_config_updated_at BEFORE UPDATE
ON system_config FOR EACH ROW EXECUTE FUNCTION update_updated_at_column();

-- Insert initial system configuration
INSERT INTO system_config (key, value, description) 
VALUES ('admin_initialized', 'false', 'Whether the first admin user has been initialized');