-- =============================================================================
-- ALPHA_PROJECT — Database "pompeo" — Schema iniziale
-- =============================================================================
-- Applicare su: postgresql://martin@postgres.persistence.svc.cluster.local:5432/pompeo
--
-- Esecuzione dal cluster:
--   sudo microk8s kubectl run psql-pompeo --rm -it \
--     --image=postgres:17-alpine --namespace=persistence \
--     --env="PGPASSWORD=<password>" --restart=Never \
--     -- psql "postgresql://martin@postgres:5432/pompeo" -f /dev/stdin < postgres.sql
--
-- Esecuzione via port-forward:
--   sudo microk8s kubectl port-forward svc/postgres -n persistence 5432:5432
--   psql "postgresql://martin@localhost:5432/pompeo" -f postgres.sql
-- =============================================================================

\c pompeo

-- ---------------------------------------------------------------------------
-- Estensioni
-- ---------------------------------------------------------------------------
CREATE EXTENSION IF NOT EXISTS "uuid-ossp";
CREATE EXTENSION IF NOT EXISTS "pg_trgm";  -- full-text similarity search su subject/detail


-- =============================================================================
-- 1. USER_PROFILE
--    Preferenze statiche per utente. Aggiornata manualmente o via agent action.
--    user_id 'shared' = preferenze della casa (visibili a tutti).
-- =============================================================================
CREATE TABLE IF NOT EXISTS user_profile (
  user_id            TEXT PRIMARY KEY,
  display_name       TEXT,
  language           TEXT        NOT NULL DEFAULT 'it',
  timezone           TEXT        NOT NULL DEFAULT 'Europe/Rome',
  notification_style TEXT        NOT NULL DEFAULT 'concise',  -- 'concise' | 'verbose'
  quiet_start        TIME        NOT NULL DEFAULT '23:00',
  quiet_end          TIME        NOT NULL DEFAULT '07:00',
  preferences        JSONB,      -- freeform: soglie, preferenze extra per agente
  updated_at         TIMESTAMP   NOT NULL DEFAULT now()
);

-- Utenti iniziali
INSERT INTO user_profile (user_id, display_name) VALUES
  ('martin', 'Martin'),
  ('shared', 'Shared')
ON CONFLICT (user_id) DO NOTHING;


-- =============================================================================
-- 2. MEMORY_FACTS
--    Fatti episodici prodotti da tutti gli agenti. TTL tramite expires_at.
--    qdrant_id: riferimento al punto vettoriale corrispondente nella collection "episodes".
-- =============================================================================
CREATE TABLE IF NOT EXISTS memory_facts (
  id               UUID      PRIMARY KEY DEFAULT gen_random_uuid(),
  user_id          TEXT      NOT NULL DEFAULT 'martin',
  source           TEXT      NOT NULL,   -- 'email' | 'calendar' | 'iot' | 'paperless' | 'n8n' | ...
  category         TEXT,                 -- 'finance' | 'personal' | 'work' | 'health' | ...
  subject          TEXT,
  detail           JSONB,                -- payload flessibile per-source
  action_required  BOOLEAN   NOT NULL DEFAULT false,
  action_text      TEXT,
  created_at       TIMESTAMP NOT NULL DEFAULT now(),
  expires_at       TIMESTAMP,            -- NULL = permanente
  qdrant_id        UUID                  -- FK logico → collection "episodes"
);

CREATE INDEX IF NOT EXISTS idx_memory_facts_user_source_cat
  ON memory_facts(user_id, source, category);

CREATE INDEX IF NOT EXISTS idx_memory_facts_expires
  ON memory_facts(expires_at)
  WHERE expires_at IS NOT NULL;

CREATE INDEX IF NOT EXISTS idx_memory_facts_action
  ON memory_facts(user_id, action_required)
  WHERE action_required = true;


-- =============================================================================
-- 3. FINANCE_DOCUMENTS
--    Documenti finanziari strutturati (bollette, fatture, cedolini).
--    paperless_doc_id: riferimento al documento in Paperless-ngx.
-- =============================================================================
CREATE TABLE IF NOT EXISTS finance_documents (
  id                UUID        PRIMARY KEY DEFAULT gen_random_uuid(),
  user_id           TEXT        NOT NULL DEFAULT 'martin',
  paperless_doc_id  INT,                  -- ID documento in Paperless-ngx
  correspondent     TEXT,
  amount            NUMERIC(10,2),
  currency          TEXT        NOT NULL DEFAULT 'EUR',
  doc_date          DATE,
  doc_type          TEXT,                 -- 'bolletta' | 'fattura' | 'cedolino' | ...
  tags              TEXT[],
  raw_text          TEXT,                 -- testo OCR grezzo (per embedding)
  created_at        TIMESTAMP   NOT NULL DEFAULT now()
);

CREATE INDEX IF NOT EXISTS idx_finance_docs_user_date
  ON finance_documents(user_id, doc_date DESC);

CREATE INDEX IF NOT EXISTS idx_finance_docs_correspondent
  ON finance_documents(user_id, correspondent);


-- =============================================================================
-- 4. BEHAVIORAL_CONTEXT
--    Contesto comportamentale prodotto dall'IoT Agent e dal Calendar Agent.
--    Usato dal Proactive Arbiter per rispettare DND e stimare presence.
-- =============================================================================
CREATE TABLE IF NOT EXISTS behavioral_context (
  id                        UUID      PRIMARY KEY DEFAULT gen_random_uuid(),
  user_id                   TEXT      NOT NULL DEFAULT 'martin',
  event_type                TEXT,     -- 'sport_event' | 'dog_walk' | 'work_session' | 'commute' | ...
  start_at                  TIMESTAMP,
  end_at                    TIMESTAMP,
  do_not_disturb            BOOLEAN   NOT NULL DEFAULT false,
  home_presence_expected    BOOLEAN,
  notes                     TEXT,
  created_at                TIMESTAMP NOT NULL DEFAULT now()
);

CREATE INDEX IF NOT EXISTS idx_behavioral_ctx_user_time
  ON behavioral_context(user_id, start_at, end_at);

CREATE INDEX IF NOT EXISTS idx_behavioral_ctx_dnd
  ON behavioral_context(user_id, do_not_disturb)
  WHERE do_not_disturb = true;


-- =============================================================================
-- 5. AGENT_MESSAGES
--    Blackboard: ogni agente pubblica qui le proprie osservazioni.
--    Il Proactive Arbiter legge, decide (notify/defer/discard) e aggiorna.
--    Corrisponde al message schema definito in alpha/README.md.
-- =============================================================================
CREATE TABLE IF NOT EXISTS agent_messages (
  id                UUID      PRIMARY KEY DEFAULT gen_random_uuid(),
  agent             TEXT      NOT NULL,  -- 'mail' | 'calendar' | 'iot' | 'finance' | 'infra' | ...
  priority          TEXT      NOT NULL,  -- 'low' | 'high'
  event_type        TEXT      NOT NULL,  -- 'new_fact' | 'reminder' | 'alert' | 'behavioral_observation'
  user_id           TEXT      NOT NULL DEFAULT 'martin',
  subject           TEXT,
  detail            JSONB,
  source_ref        TEXT,                -- ID record Postgres o ref esterna
  expires_at        TIMESTAMP,
  arbiter_decision  TEXT,               -- NULL (pending) | 'notify' | 'defer' | 'discard'
  arbiter_reason    TEXT,
  created_at        TIMESTAMP NOT NULL DEFAULT now(),
  processed_at      TIMESTAMP
);

CREATE INDEX IF NOT EXISTS idx_agent_msgs_pending
  ON agent_messages(user_id, priority, created_at)
  WHERE arbiter_decision IS NULL;

CREATE INDEX IF NOT EXISTS idx_agent_msgs_agent_type
  ON agent_messages(agent, event_type, created_at);

CREATE INDEX IF NOT EXISTS idx_agent_msgs_expires
  ON agent_messages(expires_at)
  WHERE expires_at IS NOT NULL AND arbiter_decision IS NULL;


-- =============================================================================
-- Fine script
-- =============================================================================
\echo '✅ Schema pompeo applicato correttamente.'
\echo '   Tabelle: user_profile, memory_facts, finance_documents, behavioral_context, agent_messages'