-- Create agent_activity_log table for trading agent service
-- Tracks all agent activities for monitoring and auditing

CREATE TYPE activity_type AS ENUM (
    'UNIVERSE_SELECTION',
    'ASSET_SELECTION',
    'ALLOCATION',
    'ORDER_GENERATION',
    'STRATEGY_EVENT'
);

CREATE TABLE IF NOT EXISTS agent_activity_log (
    activity_id UUID PRIMARY KEY DEFAULT gen_random_uuid(),
    activity_type activity_type NOT NULL,
    strategy_id UUID,  -- Optional reference to strategy
    universe_id UUID,
    selection_id UUID,
    allocation_id UUID,
    batch_id UUID,
    event_data JSONB NOT NULL,  -- Detailed event information
    message TEXT,
    created_at TIMESTAMPTZ NOT NULL DEFAULT NOW(),
    FOREIGN KEY (strategy_id) REFERENCES agent_strategies(strategy_id) ON DELETE SET NULL
);

-- Indexes for performance
CREATE INDEX idx_agent_activity_type ON agent_activity_log(activity_type);
CREATE INDEX idx_agent_activity_strategy ON agent_activity_log(strategy_id);
CREATE INDEX idx_agent_activity_created ON agent_activity_log(created_at DESC);
CREATE INDEX idx_agent_activity_universe ON agent_activity_log(universe_id);

-- Comments
COMMENT ON TABLE agent_activity_log IS 'Audit log of all trading agent activities';
COMMENT ON COLUMN agent_activity_log.event_data IS 'Detailed event information in JSON format';