-- Phase-1: Router Experience Bus event store (append-only)

CREATE TABLE IF NOT EXISTS agent_experience_events (
    id BIGSERIAL PRIMARY KEY,
    event_id UUID NOT NULL UNIQUE,
    ts TIMESTAMPTZ NOT NULL,
    node_id TEXT NOT NULL,
    source TEXT NOT NULL,
    agent_id TEXT NOT NULL,
    task_type TEXT NOT NULL,
    request_id TEXT NULL,
    channel TEXT NOT NULL DEFAULT 'unknown',
    inputs_hash TEXT NOT NULL,
    provider TEXT NOT NULL,
    model TEXT NOT NULL,
    profile TEXT NULL,
    latency_ms INT NOT NULL,
    tokens_in INT NULL,
    tokens_out INT NULL,
    ok BOOLEAN NOT NULL,
    error_class TEXT NULL,
    error_msg_redacted TEXT NULL,
    http_status INT NOT NULL,
    raw JSONB NOT NULL,
    created_at TIMESTAMPTZ NOT NULL DEFAULT NOW()
);

CREATE INDEX IF NOT EXISTS idx_agent_experience_events_agent_ts
    ON agent_experience_events (agent_id, ts DESC);

CREATE INDEX IF NOT EXISTS idx_agent_experience_events_task_ts
    ON agent_experience_events (task_type, ts DESC);

CREATE INDEX IF NOT EXISTS idx_agent_experience_events_hash_ts
    ON agent_experience_events (inputs_hash, ts DESC);

CREATE INDEX IF NOT EXISTS idx_agent_experience_events_ok_ts
    ON agent_experience_events (ok, ts DESC);